eventespresso / event-espresso-core

core/libraries/form_sections/form_handlers/FormHandler.php

Indentation +643 added lines, -643 removed lines

@@ -15,7 +15,7 @@ 
 use EventEspresso\core\exceptions\InvalidFormSubmissionException;
 
 if (! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -34,648 +34,648 @@ 
 abstract class FormHandler implements FormHandlerInterface
 {
 
-    /**
-     * will add opening and closing HTML form tags as well as a submit button
-     */
-    const ADD_FORM_TAGS_AND_SUBMIT = 'add_form_tags_and_submit';
-
-    /**
-     * will add opening and closing HTML form tags but NOT a submit button
-     */
-    const ADD_FORM_TAGS_ONLY = 'add_form_tags_only';
-
-    /**
-     * will NOT add opening and closing HTML form tags but will add a submit button
-     */
-    const ADD_FORM_SUBMIT_ONLY = 'add_form_submit_only';
-
-    /**
-     * will NOT add opening and closing HTML form tags NOR a submit button
-     */
-    const DO_NOT_SETUP_FORM = 'do_not_setup_form';
-
-    /**
-     * if set to false, then this form has no displayable content,
-     * and will only be used for processing data sent passed via GET or POST
-     * defaults to true ( ie: form has displayable content )
-     *
-     * @var boolean $displayable
-     */
-    private $displayable = true;
-
-    /**
-     * @var string $form_name
-     */
-    private $form_name;
-
-    /**
-     * @var string $admin_name
-     */
-    private $admin_name;
-
-    /**
-     * @var string $slug
-     */
-    private $slug;
-
-    /**
-     * @var string $submit_btn_text
-     */
-    private $submit_btn_text;
-
-    /**
-     * @var string $form_action
-     */
-    private $form_action;
-
-    /**
-     * form params in key value pairs
-     * can be added to form action URL or as hidden inputs
-     *
-     * @var array $form_args
-     */
-    private $form_args = array();
-
-    /**
-     * value of one of the string constant above
-     *
-     * @var string $form_config
-     */
-    private $form_config;
-
-    /**
-     * whether or not the form was determined to be invalid
-     *
-     * @var boolean $form_has_errors
-     */
-    private $form_has_errors;
-
-    /**
-     * the absolute top level form section being used on the page
-     *
-     * @var EE_Form_Section_Proper $form
-     */
-    private $form;
-
-    /**
-     * @var EE_Registry $registry
-     */
-    protected $registry;
-
-
-
-    /**
-     * Form constructor.
-     *
-     * @param string      $form_name
-     * @param string      $admin_name
-     * @param string      $slug
-     * @param string      $form_action
-     * @param string      $form_config
-     * @param EE_Registry $registry
-     * @throws InvalidDataTypeException
-     * @throws DomainException
-     * @throws InvalidArgumentException
-     */
-    public function __construct(
-        $form_name,
-        $admin_name,
-        $slug,
-        $form_action = '',
-        $form_config = FormHandler::ADD_FORM_TAGS_AND_SUBMIT,
-        EE_Registry $registry
-    ) {
-        $this->setFormName($form_name);
-        $this->setAdminName($admin_name);
-        $this->setSlug($slug);
-        $this->setFormAction($form_action);
-        $this->setFormConfig($form_config);
-        $this->setSubmitBtnText(esc_html__('Submit', 'event_espresso'));
-        $this->registry = $registry;
-    }
-
-
-
-    /**
-     * @return array
-     */
-    public static function getFormConfigConstants()
-    {
-        return array(
-            FormHandler::ADD_FORM_TAGS_AND_SUBMIT,
-            FormHandler::ADD_FORM_TAGS_ONLY,
-            FormHandler::ADD_FORM_SUBMIT_ONLY,
-            FormHandler::DO_NOT_SETUP_FORM,
-        );
-    }
-
-
-
-    /**
-     * @param bool $for_display
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws LogicException
-     */
-    public function form($for_display = false)
-    {
-        if (! $this->formIsValid()) {
-            return null;
-        }
-        if ($for_display) {
-            $form_config = $this->formConfig();
-            if (
-                $form_config === FormHandler::ADD_FORM_TAGS_AND_SUBMIT
-                || $form_config === FormHandler::ADD_FORM_SUBMIT_ONLY
-            ) {
-                $this->appendSubmitButton();
-                $this->clearFormButtonFloats();
-            }
-        }
-        return $this->form;
-    }
-
-
-
-    /**
-     * @return boolean
-     * @throws LogicException
-     */
-    public function formIsValid()
-    {
-        if ($this->form instanceof EE_Form_Section_Proper) {
-            return true;
-        }
-        $form = apply_filters(
-            'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__formIsValid__generated_form_object',
-            $this->generate(),
-            $this
-        );
-        if ($this->verifyForm($form)) {
-            $this->setForm($form);
-        }
-        return true;
-    }
-
-
-
-    /**
-     * @param EE_Form_Section_Proper|null $form
-     * @return bool
-     * @throws LogicException
-     */
-    public function verifyForm(EE_Form_Section_Proper $form = null)
-    {
-        $form = $form !== null ? $form : $this->form;
-        if ($form instanceof EE_Form_Section_Proper) {
-            return true;
-        }
-        throw new LogicException(
-            sprintf(
-                esc_html__('The "%1$s" form is invalid or missing. %2$s', 'event_espresso'),
-                $this->form_name,
-                var_export($form, true)
-            )
-        );
-    }
-
-
-
-    /**
-     * @param EE_Form_Section_Proper $form
-     */
-    public function setForm(EE_Form_Section_Proper $form)
-    {
-        $this->form = $form;
-    }
-
-
-
-    /**
-     * @return boolean
-     */
-    public function displayable()
-    {
-        return $this->displayable;
-    }
-
-
-
-    /**
-     * @param boolean $displayable
-     */
-    public function setDisplayable($displayable = false)
-    {
-        $this->displayable = filter_var($displayable, FILTER_VALIDATE_BOOLEAN);
-    }
-
-
-
-    /**
-     * a public name for the form that can be displayed on the frontend of a site
-     *
-     * @return string
-     */
-    public function formName()
-    {
-        return $this->form_name;
-    }
-
-
-
-    /**
-     * @param string $form_name
-     * @throws InvalidDataTypeException
-     */
-    public function setFormName($form_name)
-    {
-        if (! is_string($form_name)) {
-            throw new InvalidDataTypeException('$form_name', $form_name, 'string');
-        }
-        $this->form_name = $form_name;
-    }
-
-
-
-    /**
-     * a public name for the form that can be displayed, but only in the admin
-     *
-     * @return string
-     */
-    public function adminName()
-    {
-        return $this->admin_name;
-    }
-
-
-
-    /**
-     * @param string $admin_name
-     * @throws InvalidDataTypeException
-     */
-    public function setAdminName($admin_name)
-    {
-        if (! is_string($admin_name)) {
-            throw new InvalidDataTypeException('$admin_name', $admin_name, 'string');
-        }
-        $this->admin_name = $admin_name;
-    }
-
-
-
-    /**
-     * a URL friendly string that can be used for identifying the form
-     *
-     * @return string
-     */
-    public function slug()
-    {
-        return $this->slug;
-    }
-
-
-
-    /**
-     * @param string $slug
-     * @throws InvalidDataTypeException
-     */
-    public function setSlug($slug)
-    {
-        if (! is_string($slug)) {
-            throw new InvalidDataTypeException('$slug', $slug, 'string');
-        }
-        $this->slug = $slug;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function submitBtnText()
-    {
-        return $this->submit_btn_text;
-    }
-
-
-
-    /**
-     * @param string $submit_btn_text
-     * @throws InvalidDataTypeException
-     * @throws InvalidArgumentException
-     */
-    public function setSubmitBtnText($submit_btn_text)
-    {
-        if (! is_string($submit_btn_text)) {
-            throw new InvalidDataTypeException('$submit_btn_text', $submit_btn_text, 'string');
-        }
-        if (empty($submit_btn_text)) {
-            throw new InvalidArgumentException(
-                esc_html__('Can not set Submit button text because an empty string was provided.', 'event_espresso')
-            );
-        }
-        $this->submit_btn_text = $submit_btn_text;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function formAction()
-    {
-        return ! empty($this->form_args)
-            ? add_query_arg($this->form_args, $this->form_action)
-            : $this->form_action;
-    }
-
-
-
-    /**
-     * @param string $form_action
-     * @throws InvalidDataTypeException
-     */
-    public function setFormAction($form_action)
-    {
-        if (! is_string($form_action)) {
-            throw new InvalidDataTypeException('$form_action', $form_action, 'string');
-        }
-        $this->form_action = $form_action;
-    }
-
-
-
-    /**
-     * @param array $form_args
-     * @throws InvalidDataTypeException
-     * @throws InvalidArgumentException
-     */
-    public function addFormActionArgs($form_args = array())
-    {
-        if (is_object($form_args)) {
-            throw new InvalidDataTypeException(
-                '$form_args',
-                $form_args,
-                'anything other than an object was expected.'
-            );
-        }
-        if (empty($form_args)) {
-            throw new InvalidArgumentException(
-                esc_html__('The redirect arguments can not be an empty array.', 'event_espresso')
-            );
-        }
-        $this->form_args = array_merge($this->form_args, $form_args);
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function formConfig()
-    {
-        return $this->form_config;
-    }
-
-
-
-    /**
-     * @param string $form_config
-     * @throws DomainException
-     */
-    public function setFormConfig($form_config)
-    {
-        if (
-        ! in_array(
-            $form_config,
-            array(
-                FormHandler::ADD_FORM_TAGS_AND_SUBMIT,
-                FormHandler::ADD_FORM_TAGS_ONLY,
-                FormHandler::ADD_FORM_SUBMIT_ONLY,
-                FormHandler::DO_NOT_SETUP_FORM,
-            ),
-            true
-        )
-        ) {
-            throw new DomainException(
-                sprintf(
-                    esc_html__('"%1$s" is not a valid value for the form config. Please use one of the class constants on \EventEspresso\core\libraries\form_sections\form_handlers\Form',
-                        'event_espresso'),
-                    $form_config
-                )
-            );
-        }
-        $this->form_config = $form_config;
-    }
-
-
-
-    /**
-     * called after the form is instantiated
-     * and used for performing any logic that needs to occur early
-     * before any of the other methods are called.
-     * returns true if everything is ok to proceed,
-     * and false if no further form logic should be implemented
-     *
-     * @return boolean
-     */
-    public function initialize()
-    {
-        $this->form_has_errors = EE_Error::has_error(true);
-        return true;
-    }
-
-
-
-    /**
-     * used for setting up css and js
-     *
-     * @return void
-     * @throws LogicException
-     * @throws EE_Error
-     */
-    public function enqueueStylesAndScripts()
-    {
-        $this->form()->enqueue_js();
-    }
-
-
-
-    /**
-     * creates and returns the actual form
-     *
-     * @return EE_Form_Section_Proper
-     */
-    abstract public function generate();
-
-
-
-    /**
-     * creates and returns an EE_Submit_Input labeled "Submit"
-     *
-     * @param string $text
-     * @return EE_Submit_Input
-     */
-    public function generateSubmitButton($text = '')
-    {
-        $text = ! empty($text) ? $text : $this->submitBtnText();
-        return new EE_Submit_Input(
-            array(
-                'html_name'             => 'ee-form-submit-' . $this->slug(),
-                'html_id'               => 'ee-form-submit-' . $this->slug(),
-                'html_class'            => 'ee-form-submit',
-                'html_label'            => ' ',
-                'other_html_attributes' => ' rel="' . $this->slug() . '"',
-                'default'               => $text,
-            )
-        );
-    }
-
-
-
-    /**
-     * calls generateSubmitButton() and appends it onto the form along with a float clearing div
-     *
-     * @param string $text
-     * @return void
-     * @throws EE_Error
-     */
-    public function appendSubmitButton($text = '')
-    {
-        if ($this->form->subsection_exists($this->slug() . '-submit-btn')) {
-            return;
-        }
-        $this->form->add_subsections(
-            array($this->slug() . '-submit-btn' => $this->generateSubmitButton($text)),
-            null,
-            false
-        );
-    }
-
-
-
-    /**
-     * creates and returns an EE_Submit_Input labeled "Cancel"
-     *
-     * @param string $text
-     * @return EE_Submit_Input
-     */
-    public function generateCancelButton($text = '')
-    {
-        $cancel_button = new EE_Submit_Input(
-            array(
-                'html_name'             => 'ee-form-submit-' . $this->slug(), // YES! Same name as submit !!!
-                'html_id'               => 'ee-cancel-form-' . $this->slug(),
-                'html_class'            => 'ee-cancel-form',
-                'html_label'            => ' ',
-                'other_html_attributes' => ' rel="' . $this->slug() . '"',
-                'default'               => ! empty($text) ? $text : esc_html__('Cancel', 'event_espresso'),
-            )
-        );
-        $cancel_button->set_button_css_attributes(false);
-        return $cancel_button;
-    }
-
-
-
-    /**
-     * appends a float clearing div onto end of form
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function clearFormButtonFloats()
-    {
-        $this->form->add_subsections(
-            array(
-                'clear-submit-btn-float' => new EE_Form_Section_HTML(
-                    EEH_HTML::div('', '', 'clear-float') . EEH_HTML::divx()
-                ),
-            ),
-            null,
-            false
-        );
-    }
-
-
-    /**
-     * takes the generated form and displays it along with ony other non-form HTML that may be required
-     * returns a string of HTML that can be directly echoed in a template
-     *
-     * @return string
-     * @throws \InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws LogicException
-     * @throws EE_Error
-     */
-    public function display()
-    {
-        $form_html = apply_filters(
-            'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__display__before_form',
-            ''
-        );
-        $form_config = $this->formConfig();
-        if (
-            $form_config === FormHandler::ADD_FORM_TAGS_AND_SUBMIT
-            || $form_config === FormHandler::ADD_FORM_TAGS_ONLY
-        ) {
-            $form_html .= $this->form()->form_open($this->formAction());
-        }
-        $form_html .= $this->form(true)->get_html($this->form_has_errors);
-        if (
-            $form_config === FormHandler::ADD_FORM_TAGS_AND_SUBMIT
-            || $form_config === FormHandler::ADD_FORM_TAGS_ONLY
-        ) {
-            $form_html .= $this->form()->form_close();
-        }
-        $form_html .= apply_filters(
-            'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__display__after_form',
-            ''
-        );
-        return $form_html;
-    }
-
-
-    /**
-     * handles processing the form submission
-     * returns true or false depending on whether the form was processed successfully or not
-     *
-     * @param array $submitted_form_data
-     * @return array
-     * @throws \InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws EE_Error
-     * @throws LogicException
-     * @throws InvalidFormSubmissionException
-     */
-    public function process($submitted_form_data = array())
-    {
-        if (! $this->form()->was_submitted($submitted_form_data)) {
-            throw new InvalidFormSubmissionException($this->form_name);
-        }
-        $this->form(true)->receive_form_submission($submitted_form_data);
-        if (! $this->form()->is_valid()) {
-            throw new InvalidFormSubmissionException(
-                $this->form_name,
-                sprintf(
-                    esc_html__(
-                        'The "%1$s" form is invalid. Please correct the following errors and resubmit: %2$s %3$s',
-                        'event_espresso'
-                    ),
-                    $this->form_name,
-                    '<br />',
-                    implode('<br />', $this->form()->get_validation_errors_accumulated())
-                )
-            );
-        }
-        return apply_filters(
-            'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__process__valid_data',
-            $this->form()->valid_data(),
-            $this
-        );
-    }
+	/**
+	 * will add opening and closing HTML form tags as well as a submit button
+	 */
+	const ADD_FORM_TAGS_AND_SUBMIT = 'add_form_tags_and_submit';
+
+	/**
+	 * will add opening and closing HTML form tags but NOT a submit button
+	 */
+	const ADD_FORM_TAGS_ONLY = 'add_form_tags_only';
+
+	/**
+	 * will NOT add opening and closing HTML form tags but will add a submit button
+	 */
+	const ADD_FORM_SUBMIT_ONLY = 'add_form_submit_only';
+
+	/**
+	 * will NOT add opening and closing HTML form tags NOR a submit button
+	 */
+	const DO_NOT_SETUP_FORM = 'do_not_setup_form';
+
+	/**
+	 * if set to false, then this form has no displayable content,
+	 * and will only be used for processing data sent passed via GET or POST
+	 * defaults to true ( ie: form has displayable content )
+	 *
+	 * @var boolean $displayable
+	 */
+	private $displayable = true;
+
+	/**
+	 * @var string $form_name
+	 */
+	private $form_name;
+
+	/**
+	 * @var string $admin_name
+	 */
+	private $admin_name;
+
+	/**
+	 * @var string $slug
+	 */
+	private $slug;
+
+	/**
+	 * @var string $submit_btn_text
+	 */
+	private $submit_btn_text;
+
+	/**
+	 * @var string $form_action
+	 */
+	private $form_action;
+
+	/**
+	 * form params in key value pairs
+	 * can be added to form action URL or as hidden inputs
+	 *
+	 * @var array $form_args
+	 */
+	private $form_args = array();
+
+	/**
+	 * value of one of the string constant above
+	 *
+	 * @var string $form_config
+	 */
+	private $form_config;
+
+	/**
+	 * whether or not the form was determined to be invalid
+	 *
+	 * @var boolean $form_has_errors
+	 */
+	private $form_has_errors;
+
+	/**
+	 * the absolute top level form section being used on the page
+	 *
+	 * @var EE_Form_Section_Proper $form
+	 */
+	private $form;
+
+	/**
+	 * @var EE_Registry $registry
+	 */
+	protected $registry;
+
+
+
+	/**
+	 * Form constructor.
+	 *
+	 * @param string      $form_name
+	 * @param string      $admin_name
+	 * @param string      $slug
+	 * @param string      $form_action
+	 * @param string      $form_config
+	 * @param EE_Registry $registry
+	 * @throws InvalidDataTypeException
+	 * @throws DomainException
+	 * @throws InvalidArgumentException
+	 */
+	public function __construct(
+		$form_name,
+		$admin_name,
+		$slug,
+		$form_action = '',
+		$form_config = FormHandler::ADD_FORM_TAGS_AND_SUBMIT,
+		EE_Registry $registry
+	) {
+		$this->setFormName($form_name);
+		$this->setAdminName($admin_name);
+		$this->setSlug($slug);
+		$this->setFormAction($form_action);
+		$this->setFormConfig($form_config);
+		$this->setSubmitBtnText(esc_html__('Submit', 'event_espresso'));
+		$this->registry = $registry;
+	}
+
+
+
+	/**
+	 * @return array
+	 */
+	public static function getFormConfigConstants()
+	{
+		return array(
+			FormHandler::ADD_FORM_TAGS_AND_SUBMIT,
+			FormHandler::ADD_FORM_TAGS_ONLY,
+			FormHandler::ADD_FORM_SUBMIT_ONLY,
+			FormHandler::DO_NOT_SETUP_FORM,
+		);
+	}
+
+
+
+	/**
+	 * @param bool $for_display
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws LogicException
+	 */
+	public function form($for_display = false)
+	{
+		if (! $this->formIsValid()) {
+			return null;
+		}
+		if ($for_display) {
+			$form_config = $this->formConfig();
+			if (
+				$form_config === FormHandler::ADD_FORM_TAGS_AND_SUBMIT
+				|| $form_config === FormHandler::ADD_FORM_SUBMIT_ONLY
+			) {
+				$this->appendSubmitButton();
+				$this->clearFormButtonFloats();
+			}
+		}
+		return $this->form;
+	}
+
+
+
+	/**
+	 * @return boolean
+	 * @throws LogicException
+	 */
+	public function formIsValid()
+	{
+		if ($this->form instanceof EE_Form_Section_Proper) {
+			return true;
+		}
+		$form = apply_filters(
+			'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__formIsValid__generated_form_object',
+			$this->generate(),
+			$this
+		);
+		if ($this->verifyForm($form)) {
+			$this->setForm($form);
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * @param EE_Form_Section_Proper|null $form
+	 * @return bool
+	 * @throws LogicException
+	 */
+	public function verifyForm(EE_Form_Section_Proper $form = null)
+	{
+		$form = $form !== null ? $form : $this->form;
+		if ($form instanceof EE_Form_Section_Proper) {
+			return true;
+		}
+		throw new LogicException(
+			sprintf(
+				esc_html__('The "%1$s" form is invalid or missing. %2$s', 'event_espresso'),
+				$this->form_name,
+				var_export($form, true)
+			)
+		);
+	}
+
+
+
+	/**
+	 * @param EE_Form_Section_Proper $form
+	 */
+	public function setForm(EE_Form_Section_Proper $form)
+	{
+		$this->form = $form;
+	}
+
+
+
+	/**
+	 * @return boolean
+	 */
+	public function displayable()
+	{
+		return $this->displayable;
+	}
+
+
+
+	/**
+	 * @param boolean $displayable
+	 */
+	public function setDisplayable($displayable = false)
+	{
+		$this->displayable = filter_var($displayable, FILTER_VALIDATE_BOOLEAN);
+	}
+
+
+
+	/**
+	 * a public name for the form that can be displayed on the frontend of a site
+	 *
+	 * @return string
+	 */
+	public function formName()
+	{
+		return $this->form_name;
+	}
+
+
+
+	/**
+	 * @param string $form_name
+	 * @throws InvalidDataTypeException
+	 */
+	public function setFormName($form_name)
+	{
+		if (! is_string($form_name)) {
+			throw new InvalidDataTypeException('$form_name', $form_name, 'string');
+		}
+		$this->form_name = $form_name;
+	}
+
+
+
+	/**
+	 * a public name for the form that can be displayed, but only in the admin
+	 *
+	 * @return string
+	 */
+	public function adminName()
+	{
+		return $this->admin_name;
+	}
+
+
+
+	/**
+	 * @param string $admin_name
+	 * @throws InvalidDataTypeException
+	 */
+	public function setAdminName($admin_name)
+	{
+		if (! is_string($admin_name)) {
+			throw new InvalidDataTypeException('$admin_name', $admin_name, 'string');
+		}
+		$this->admin_name = $admin_name;
+	}
+
+
+
+	/**
+	 * a URL friendly string that can be used for identifying the form
+	 *
+	 * @return string
+	 */
+	public function slug()
+	{
+		return $this->slug;
+	}
+
+
+
+	/**
+	 * @param string $slug
+	 * @throws InvalidDataTypeException
+	 */
+	public function setSlug($slug)
+	{
+		if (! is_string($slug)) {
+			throw new InvalidDataTypeException('$slug', $slug, 'string');
+		}
+		$this->slug = $slug;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function submitBtnText()
+	{
+		return $this->submit_btn_text;
+	}
+
+
+
+	/**
+	 * @param string $submit_btn_text
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidArgumentException
+	 */
+	public function setSubmitBtnText($submit_btn_text)
+	{
+		if (! is_string($submit_btn_text)) {
+			throw new InvalidDataTypeException('$submit_btn_text', $submit_btn_text, 'string');
+		}
+		if (empty($submit_btn_text)) {
+			throw new InvalidArgumentException(
+				esc_html__('Can not set Submit button text because an empty string was provided.', 'event_espresso')
+			);
+		}
+		$this->submit_btn_text = $submit_btn_text;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function formAction()
+	{
+		return ! empty($this->form_args)
+			? add_query_arg($this->form_args, $this->form_action)
+			: $this->form_action;
+	}
+
+
+
+	/**
+	 * @param string $form_action
+	 * @throws InvalidDataTypeException
+	 */
+	public function setFormAction($form_action)
+	{
+		if (! is_string($form_action)) {
+			throw new InvalidDataTypeException('$form_action', $form_action, 'string');
+		}
+		$this->form_action = $form_action;
+	}
+
+
+
+	/**
+	 * @param array $form_args
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidArgumentException
+	 */
+	public function addFormActionArgs($form_args = array())
+	{
+		if (is_object($form_args)) {
+			throw new InvalidDataTypeException(
+				'$form_args',
+				$form_args,
+				'anything other than an object was expected.'
+			);
+		}
+		if (empty($form_args)) {
+			throw new InvalidArgumentException(
+				esc_html__('The redirect arguments can not be an empty array.', 'event_espresso')
+			);
+		}
+		$this->form_args = array_merge($this->form_args, $form_args);
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function formConfig()
+	{
+		return $this->form_config;
+	}
+
+
+
+	/**
+	 * @param string $form_config
+	 * @throws DomainException
+	 */
+	public function setFormConfig($form_config)
+	{
+		if (
+		! in_array(
+			$form_config,
+			array(
+				FormHandler::ADD_FORM_TAGS_AND_SUBMIT,
+				FormHandler::ADD_FORM_TAGS_ONLY,
+				FormHandler::ADD_FORM_SUBMIT_ONLY,
+				FormHandler::DO_NOT_SETUP_FORM,
+			),
+			true
+		)
+		) {
+			throw new DomainException(
+				sprintf(
+					esc_html__('"%1$s" is not a valid value for the form config. Please use one of the class constants on \EventEspresso\core\libraries\form_sections\form_handlers\Form',
+						'event_espresso'),
+					$form_config
+				)
+			);
+		}
+		$this->form_config = $form_config;
+	}
+
+
+
+	/**
+	 * called after the form is instantiated
+	 * and used for performing any logic that needs to occur early
+	 * before any of the other methods are called.
+	 * returns true if everything is ok to proceed,
+	 * and false if no further form logic should be implemented
+	 *
+	 * @return boolean
+	 */
+	public function initialize()
+	{
+		$this->form_has_errors = EE_Error::has_error(true);
+		return true;
+	}
+
+
+
+	/**
+	 * used for setting up css and js
+	 *
+	 * @return void
+	 * @throws LogicException
+	 * @throws EE_Error
+	 */
+	public function enqueueStylesAndScripts()
+	{
+		$this->form()->enqueue_js();
+	}
+
+
+
+	/**
+	 * creates and returns the actual form
+	 *
+	 * @return EE_Form_Section_Proper
+	 */
+	abstract public function generate();
+
+
+
+	/**
+	 * creates and returns an EE_Submit_Input labeled "Submit"
+	 *
+	 * @param string $text
+	 * @return EE_Submit_Input
+	 */
+	public function generateSubmitButton($text = '')
+	{
+		$text = ! empty($text) ? $text : $this->submitBtnText();
+		return new EE_Submit_Input(
+			array(
+				'html_name'             => 'ee-form-submit-' . $this->slug(),
+				'html_id'               => 'ee-form-submit-' . $this->slug(),
+				'html_class'            => 'ee-form-submit',
+				'html_label'            => '&nbsp;',
+				'other_html_attributes' => ' rel="' . $this->slug() . '"',
+				'default'               => $text,
+			)
+		);
+	}
+
+
+
+	/**
+	 * calls generateSubmitButton() and appends it onto the form along with a float clearing div
+	 *
+	 * @param string $text
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function appendSubmitButton($text = '')
+	{
+		if ($this->form->subsection_exists($this->slug() . '-submit-btn')) {
+			return;
+		}
+		$this->form->add_subsections(
+			array($this->slug() . '-submit-btn' => $this->generateSubmitButton($text)),
+			null,
+			false
+		);
+	}
+
+
+
+	/**
+	 * creates and returns an EE_Submit_Input labeled "Cancel"
+	 *
+	 * @param string $text
+	 * @return EE_Submit_Input
+	 */
+	public function generateCancelButton($text = '')
+	{
+		$cancel_button = new EE_Submit_Input(
+			array(
+				'html_name'             => 'ee-form-submit-' . $this->slug(), // YES! Same name as submit !!!
+				'html_id'               => 'ee-cancel-form-' . $this->slug(),
+				'html_class'            => 'ee-cancel-form',
+				'html_label'            => '&nbsp;',
+				'other_html_attributes' => ' rel="' . $this->slug() . '"',
+				'default'               => ! empty($text) ? $text : esc_html__('Cancel', 'event_espresso'),
+			)
+		);
+		$cancel_button->set_button_css_attributes(false);
+		return $cancel_button;
+	}
+
+
+
+	/**
+	 * appends a float clearing div onto end of form
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function clearFormButtonFloats()
+	{
+		$this->form->add_subsections(
+			array(
+				'clear-submit-btn-float' => new EE_Form_Section_HTML(
+					EEH_HTML::div('', '', 'clear-float') . EEH_HTML::divx()
+				),
+			),
+			null,
+			false
+		);
+	}
+
+
+	/**
+	 * takes the generated form and displays it along with ony other non-form HTML that may be required
+	 * returns a string of HTML that can be directly echoed in a template
+	 *
+	 * @return string
+	 * @throws \InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws LogicException
+	 * @throws EE_Error
+	 */
+	public function display()
+	{
+		$form_html = apply_filters(
+			'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__display__before_form',
+			''
+		);
+		$form_config = $this->formConfig();
+		if (
+			$form_config === FormHandler::ADD_FORM_TAGS_AND_SUBMIT
+			|| $form_config === FormHandler::ADD_FORM_TAGS_ONLY
+		) {
+			$form_html .= $this->form()->form_open($this->formAction());
+		}
+		$form_html .= $this->form(true)->get_html($this->form_has_errors);
+		if (
+			$form_config === FormHandler::ADD_FORM_TAGS_AND_SUBMIT
+			|| $form_config === FormHandler::ADD_FORM_TAGS_ONLY
+		) {
+			$form_html .= $this->form()->form_close();
+		}
+		$form_html .= apply_filters(
+			'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__display__after_form',
+			''
+		);
+		return $form_html;
+	}
+
+
+	/**
+	 * handles processing the form submission
+	 * returns true or false depending on whether the form was processed successfully or not
+	 *
+	 * @param array $submitted_form_data
+	 * @return array
+	 * @throws \InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws EE_Error
+	 * @throws LogicException
+	 * @throws InvalidFormSubmissionException
+	 */
+	public function process($submitted_form_data = array())
+	{
+		if (! $this->form()->was_submitted($submitted_form_data)) {
+			throw new InvalidFormSubmissionException($this->form_name);
+		}
+		$this->form(true)->receive_form_submission($submitted_form_data);
+		if (! $this->form()->is_valid()) {
+			throw new InvalidFormSubmissionException(
+				$this->form_name,
+				sprintf(
+					esc_html__(
+						'The "%1$s" form is invalid. Please correct the following errors and resubmit: %2$s %3$s',
+						'event_espresso'
+					),
+					$this->form_name,
+					'<br />',
+					implode('<br />', $this->form()->get_validation_errors_accumulated())
+				)
+			);
+		}
+		return apply_filters(
+			'FHEE__EventEspresso_core_libraries_form_sections_form_handlers_FormHandler__process__valid_data',
+			$this->form()->valid_data(),
+			$this
+		);
+	}
 
 
 

core/libraries/form_sections/strategies/normalization/EE_Null_Normalization.strategy.php

Indentation +22 added lines, -22 removed lines

@@ -1,5 +1,5 @@ 
 <?php if (! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -15,26 +15,26 @@ 
 class EE_Null_Normalization extends EE_Normalization_Strategy_Base
 {
 
-    /**
-     * @param string $value_to_normalize
-     * @return null
-     */
-    public function normalize($value_to_normalize)
-    {
-        return null;
-    }
-
-
-
-    /**
-     * In the form input we need some string, so use a blank one.
-     *
-     * @param string $normalized_value
-     * @return string
-     */
-    public function unnormalize($normalized_value)
-    {
-        return '';
-    }
+	/**
+	 * @param string $value_to_normalize
+	 * @return null
+	 */
+	public function normalize($value_to_normalize)
+	{
+		return null;
+	}
+
+
+
+	/**
+	 * In the form input we need some string, so use a blank one.
+	 *
+	 * @param string $normalized_value
+	 * @return string
+	 */
+	public function unnormalize($normalized_value)
+	{
+		return '';
+	}
 
 }
\ No newline at end of file

Spacing +1 added lines, -1 removed lines

@@ -1,4 +1,4 @@
-<?php if (! defined('EVENT_ESPRESSO_VERSION')) {
+<?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {
     exit('No direct script access allowed');
 }
 

core/libraries/form_sections/inputs/EE_Form_Input_Base.input.php

Indentation +1171 added lines, -1171 removed lines

@@ -1,5 +1,5 @@ 
 <?php if (! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -16,1174 +16,1174 @@ 
 abstract class EE_Form_Input_Base extends EE_Form_Section_Validatable
 {
 
-    /**
-     * the input's name attribute
-     *
-     * @var string
-     */
-    protected $_html_name;
-
-    /**
-     * id for the html label tag
-     *
-     * @var string
-     */
-    protected $_html_label_id;
-
-    /**
-     * class for teh html label tag
-     *
-     * @var string
-     */
-    protected $_html_label_class;
-
-    /**
-     * any additional html attributes that you may want to add
-     *
-     * @var string
-     */
-    protected $_html_other_attributes;
-
-    /**
-     * style for teh html label tag
-     *
-     * @var string
-     */
-    protected $_html_label_style;
-
-    /**
-     * text to be placed in the html label
-     *
-     * @var string
-     */
-    protected $_html_label_text;
-
-    /**
-     * the full html label. If used, all other html_label_* properties are invalid
-     *
-     * @var string
-     */
-    protected $_html_label;
-
-    /**
-     * HTML to use for help text (normally placed below form input), in a span which normally
-     * has a class of 'description'
-     *
-     * @var string
-     */
-    protected $_html_help_text;
-
-    /**
-     * CSS classes for displaying the help span
-     *
-     * @var string
-     */
-    protected $_html_help_class = 'description';
-
-    /**
-     * CSS to put in the style attribute on the help span
-     *
-     * @var string
-     */
-    protected $_html_help_style;
-
-    /**
-     * Stores whether or not this input's response is required.
-     * Because certain styling elements may also want to know that this
-     * input is required etc.
-     *
-     * @var boolean
-     */
-    protected $_required;
-
-    /**
-     * css class added to required inputs
-     *
-     * @var string
-     */
-    protected $_required_css_class = 'ee-required';
-
-    /**
-     * css styles applied to button type inputs
-     *
-     * @var string
-     */
-    protected $_button_css_attributes;
-
-    /**
-     * The raw data submitted for this, like in the $_POST super global.
-     * Generally unsafe for usage in client code
-     *
-     * @var mixed string or array
-     */
-    protected $_raw_value;
-
-    /**
-     * Value normalized according to the input's normalization strategy.
-     * The normalization strategy dictates whether this is a string, int, float,
-     * boolean, or array of any of those.
-     *
-     * @var mixed
-     */
-    protected $_normalized_value;
-
-
-    /**
-     * Normalized default value either initially set on the input, or provided by calling
-     * set_default().
-     * @var mixed
-     */
-    protected $_default;
-
-    /**
-     * Strategy used for displaying this field.
-     * Child classes must use _get_display_strategy to access it.
-     *
-     * @var EE_Display_Strategy_Base
-     */
-    private $_display_strategy;
-
-    /**
-     * Gets all the validation strategies used on this field
-     *
-     * @var EE_Validation_Strategy_Base[]
-     */
-    private $_validation_strategies = array();
-
-    /**
-     * The normalization strategy for this field
-     *
-     * @var EE_Normalization_Strategy_Base
-     */
-    private $_normalization_strategy;
-
-    /**
-     * Strategy for removing sensitive data after we're done with the form input
-     *
-     * @var EE_Sensitive_Data_Removal_Base
-     */
-    protected $_sensitive_data_removal_strategy;
-
-
-
-    /**
-     * @param array                         $input_args       {
-     * @type string                         $html_name        the html name for the input
-     * @type string                         $html_label_id    the id attribute to give to the html label tag
-     * @type string                         $html_label_class the class attribute to give to the html label tag
-     * @type string                         $html_label_style the style attribute to give ot teh label tag
-     * @type string                         $html_label_text  the text to put in the label tag
-     * @type string                         $html_label       the full html label. If used,
-     *                                                        all other html_label_* args are invalid
-     * @type string                         $html_help_text   text to put in help element
-     * @type string                         $html_help_style  style attribute to give to teh help element
-     * @type string                         $html_help_class  class attribute to give to the help element
-     * @type string                         $default          default value NORMALIZED (eg, if providing the default
-     *       for a Yes_No_Input, you should provide TRUE or FALSE, not '1' or '0')
-     * @type EE_Display_Strategy_Base       $display          strategy
-     * @type EE_Normalization_Strategy_Base $normalization_strategy
-     * @type EE_Validation_Strategy_Base[]  $validation_strategies
-     * @type boolean                        $ignore_input special argument which can be used to avoid adding any validation strategies,
-     *                                                    and sets the normalization strategy to the Null normalization. This is good
-     *                                                    when you want the input to be totally ignored server-side (like when using
-     *                                                    React.js form inputs)
-     *                                                        }
-     */
-    public function __construct($input_args = array())
-    {
-        $input_args = (array)apply_filters('FHEE__EE_Form_Input_Base___construct__input_args', $input_args, $this);
-        // the following properties must be cast as arrays
-        if (isset($input_args['validation_strategies'])) {
-            foreach ((array)$input_args['validation_strategies'] as $validation_strategy) {
-                if ($validation_strategy instanceof EE_Validation_Strategy_Base && empty($input_args['ignore_input'])) {
-                    $this->_validation_strategies[get_class($validation_strategy)] = $validation_strategy;
-                }
-            }
-            unset($input_args['validation_strategies']);
-        }
-        if(isset($input_args['ignore_input'])) {
-            $this->_validation_strategies = array();
-        }
-        // loop thru incoming options
-        foreach ($input_args as $key => $value) {
-            // add underscore to $key to match property names
-            $_key = '_' . $key;
-            if (property_exists($this, $_key)) {
-                $this->{$_key} = $value;
-            }
-        }
-        // ensure that "required" is set correctly
-        $this->set_required(
-            $this->_required, isset($input_args['required_validation_error_message'])
-            ? $input_args['required_validation_error_message']
-            : null
-        );
-        //$this->_html_name_specified = isset( $input_args['html_name'] ) ? TRUE : FALSE;
-        $this->_display_strategy->_construct_finalize($this);
-        foreach ($this->_validation_strategies as $validation_strategy) {
-            $validation_strategy->_construct_finalize($this);
-        }
-        if (isset($input_args['ignore_input'])) {
-            $this->_normalization_strategy = new EE_Null_Normalization();
-        }
-        if (! $this->_normalization_strategy) {
-                $this->_normalization_strategy = new EE_Text_Normalization();
-        }
-        $this->_normalization_strategy->_construct_finalize($this);
-        //at least we can use the normalization strategy to populate the default
-        if (isset($input_args['default'])) {
-            $this->set_default($input_args['default']);
-            unset($input_args['default']);
-        }
-        if (! $this->_sensitive_data_removal_strategy) {
-            $this->_sensitive_data_removal_strategy = new EE_No_Sensitive_Data_Removal();
-        }
-        $this->_sensitive_data_removal_strategy->_construct_finalize($this);
-        parent::__construct($input_args);
-    }
-
-
-
-    /**
-     * Sets the html_name to its default value, if none was specified in teh constructor.
-     * Calculation involves using the name and the parent's html_name
-     *
-     * @throws \EE_Error
-     */
-    protected function _set_default_html_name_if_empty()
-    {
-        if (! $this->_html_name) {
-            $this->_html_name = $this->name();
-            if ($this->_parent_section && $this->_parent_section instanceof EE_Form_Section_Proper) {
-                $this->_html_name = $this->_parent_section->html_name_prefix() . "[{$this->name()}]";
-            }
-        }
-    }
-
-
-
-    /**
-     * @param $parent_form_section
-     * @param $name
-     * @throws \EE_Error
-     */
-    public function _construct_finalize($parent_form_section, $name)
-    {
-        parent::_construct_finalize($parent_form_section, $name);
-        if ($this->_html_label === null && $this->_html_label_text === null) {
-            $this->_html_label_text = ucwords(str_replace("_", " ", $name));
-        }
-        do_action('AHEE__EE_Form_Input_Base___construct_finalize__end', $this, $parent_form_section, $name);
-    }
-
-
-
-    /**
-     * Returns the strategy for displaying this form input. If none is set, throws an exception.
-     *
-     * @return EE_Display_Strategy_Base
-     * @throws EE_Error
-     */
-    protected function _get_display_strategy()
-    {
-        $this->ensure_construct_finalized_called();
-        if (! $this->_display_strategy || ! $this->_display_strategy instanceof EE_Display_Strategy_Base) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        "Cannot get display strategy for form input with name %s and id %s, because it has not been set in the constructor",
-                        "event_espresso"
-                    ),
-                    $this->html_name(),
-                    $this->html_id()
-                )
-            );
-        } else {
-            return $this->_display_strategy;
-        }
-    }
-
-
-
-    /**
-     * Sets the display strategy.
-     *
-     * @param EE_Display_Strategy_Base $strategy
-     */
-    protected function _set_display_strategy(EE_Display_Strategy_Base $strategy)
-    {
-        $this->_display_strategy = $strategy;
-    }
-
-
-
-    /**
-     * Sets the sanitization strategy
-     *
-     * @param EE_Normalization_Strategy_Base $strategy
-     */
-    protected function _set_normalization_strategy(EE_Normalization_Strategy_Base $strategy)
-    {
-        $this->_normalization_strategy = $strategy;
-    }
-
-
-
-    /**
-     * Gets sensitive_data_removal_strategy
-     *
-     * @return EE_Sensitive_Data_Removal_Base
-     */
-    public function get_sensitive_data_removal_strategy()
-    {
-        return $this->_sensitive_data_removal_strategy;
-    }
-
-
-
-    /**
-     * Sets sensitive_data_removal_strategy
-     *
-     * @param EE_Sensitive_Data_Removal_Base $sensitive_data_removal_strategy
-     * @return boolean
-     */
-    public function set_sensitive_data_removal_strategy($sensitive_data_removal_strategy)
-    {
-        $this->_sensitive_data_removal_strategy = $sensitive_data_removal_strategy;
-    }
-
-
-
-    /**
-     * Gets the display strategy for this input
-     *
-     * @return EE_Display_Strategy_Base
-     */
-    public function get_display_strategy()
-    {
-        return $this->_display_strategy;
-    }
-
-
-
-    /**
-     * Overwrites the display strategy
-     *
-     * @param EE_Display_Strategy_Base $display_strategy
-     */
-    public function set_display_strategy($display_strategy)
-    {
-        $this->_display_strategy = $display_strategy;
-        $this->_display_strategy->_construct_finalize($this);
-    }
-
-
-
-    /**
-     * Gets the normalization strategy set on this input
-     *
-     * @return EE_Normalization_Strategy_Base
-     */
-    public function get_normalization_strategy()
-    {
-        return $this->_normalization_strategy;
-    }
-
-
-
-    /**
-     * Overwrites the normalization strategy
-     *
-     * @param EE_Normalization_Strategy_Base $normalization_strategy
-     */
-    public function set_normalization_strategy($normalization_strategy)
-    {
-        $this->_normalization_strategy = $normalization_strategy;
-        $this->_normalization_strategy->_construct_finalize($this);
-    }
-
-
-
-    /**
-     * Returns all teh validation strategies which apply to this field, numerically indexed
-     *
-     * @return EE_Validation_Strategy_Base[]
-     */
-    public function get_validation_strategies()
-    {
-        return $this->_validation_strategies;
-    }
-
-
-
-    /**
-     * Adds this strategy to the field so it will be used in both JS validation and server-side validation
-     *
-     * @param EE_Validation_Strategy_Base $validation_strategy
-     * @return void
-     */
-    protected function _add_validation_strategy(EE_Validation_Strategy_Base $validation_strategy)
-    {
-        $validation_strategy->_construct_finalize($this);
-        $this->_validation_strategies[] = $validation_strategy;
-    }
-
-
-
-    /**
-     * Adds a new validation strategy onto the form input
-     *
-     * @param EE_Validation_Strategy_Base $validation_strategy
-     * @return void
-     */
-    public function add_validation_strategy(EE_Validation_Strategy_Base $validation_strategy)
-    {
-        $this->_add_validation_strategy($validation_strategy);
-    }
-
-
-
-    /**
-     * The classname of the validation strategy to remove
-     *
-     * @param string $validation_strategy_classname
-     */
-    public function remove_validation_strategy($validation_strategy_classname)
-    {
-        foreach ($this->_validation_strategies as $key => $validation_strategy) {
-            if (
-                $validation_strategy instanceof $validation_strategy_classname
-                || is_subclass_of($validation_strategy, $validation_strategy_classname)
-            ) {
-                unset($this->_validation_strategies[$key]);
-            }
-        }
-    }
-
-
-
-    /**
-     * returns true if input employs any of the validation strategy defined by the supplied array of classnames
-     *
-     * @param array $validation_strategy_classnames
-     * @return bool
-     */
-    public function has_validation_strategy($validation_strategy_classnames)
-    {
-        $validation_strategy_classnames = is_array($validation_strategy_classnames)
-            ? $validation_strategy_classnames
-            : array($validation_strategy_classnames);
-        foreach ($this->_validation_strategies as $key => $validation_strategy) {
-            if (in_array($key, $validation_strategy_classnames)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-
-
-    /**
-     * Gets the HTML
-     *
-     * @return string
-     */
-    public function get_html()
-    {
-        return $this->_parent_section->get_html_for_input($this);
-    }
-
-
-
-    /**
-     * Gets the HTML for the input itself (no label or errors) according to the
-     * input's display strategy
-     * Makes sure the JS and CSS are enqueued for it
-     *
-     * @return string
-     * @throws \EE_Error
-     */
-    public function get_html_for_input()
-    {
-        return $this->_form_html_filter
-            ? $this->_form_html_filter->filterHtml(
-                $this->_get_display_strategy()->display(),
-                $this
-            )
-            : $this->_get_display_strategy()->display();
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_other_attributes()
-    {
-        return ! empty($this->_html_other_attributes) ? ' ' . $this->_html_other_attributes : '';
-    }
-
-
-
-    /**
-     * @param string $html_other_attributes
-     */
-    public function set_html_other_attributes($html_other_attributes)
-    {
-        $this->_html_other_attributes = $html_other_attributes;
-    }
-
-
-
-    /**
-     * Gets the HTML for displaying the label for this form input
-     * according to the form section's layout strategy
-     *
-     * @return string
-     */
-    public function get_html_for_label()
-    {
-        return $this->_parent_section->get_layout_strategy()->display_label($this);
-    }
-
-
-
-    /**
-     * Gets the HTML for displaying the errors section for this form input
-     * according to the form section's layout strategy
-     *
-     * @return string
-     */
-    public function get_html_for_errors()
-    {
-        return $this->_parent_section->get_layout_strategy()->display_errors($this);
-    }
-
-
-
-    /**
-     * Gets the HTML for displaying the help text for this form input
-     * according to the form section's layout strategy
-     *
-     * @return string
-     */
-    public function get_html_for_help()
-    {
-        return $this->_parent_section->get_layout_strategy()->display_help_text($this);
-    }
-
-
-
-    /**
-     * Validates the input's sanitized value (assumes _sanitize() has already been called)
-     * and returns whether or not the form input's submitted value is value
-     *
-     * @return boolean
-     */
-    protected function _validate()
-    {
-        foreach ($this->_validation_strategies as $validation_strategy) {
-            if ($validation_strategy instanceof EE_Validation_Strategy_Base) {
-                try {
-                    $validation_strategy->validate($this->normalized_value());
-                } catch (EE_Validation_Error $e) {
-                    $this->add_validation_error($e);
-                }
-            }
-        }
-        if ($this->get_validation_errors()) {
-            return false;
-        } else {
-            return true;
-        }
-    }
-
-
-
-    /**
-     * Performs basic sanitization on this value. But what sanitization can be performed anyways?
-     * This value MIGHT be allowed to have tags, so we can't really remove them.
-     *
-     * @param string $value
-     * @return null|string
-     */
-    private function _sanitize($value)
-    {
-        return $value !== null ? stripslashes(html_entity_decode(trim($value))) : null;
-    }
-
-
-
-    /**
-     * Picks out the form value that relates to this form input,
-     * and stores it as the sanitized value on the form input, and sets the normalized value.
-     * Returns whether or not any validation errors occurred
-     *
-     * @param array $req_data like $_POST
-     * @return boolean whether or not there was an error
-     * @throws \EE_Error
-     */
-    protected function _normalize($req_data)
-    {
-        //any existing validation errors don't apply so clear them
-        $this->_validation_errors = array();
-        try {
-            $raw_input = $this->find_form_data_for_this_section($req_data);
-            //super simple sanitization for now
-            if (is_array($raw_input)) {
-                $raw_value = array();
-                foreach ($raw_input as $key => $value) {
-                    $raw_value[$key] = $this->_sanitize($value);
-                }
-                $this->_set_raw_value($raw_value);
-            } else {
-                $this->_set_raw_value($this->_sanitize($raw_input));
-            }
-            //we want to mostly leave the input alone in case we need to re-display it to the user
-            $this->_set_normalized_value($this->_normalization_strategy->normalize($this->raw_value()));
-        } catch (EE_Validation_Error $e) {
-            $this->add_validation_error($e);
-        }
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_name()
-    {
-        $this->_set_default_html_name_if_empty();
-        return $this->_html_name;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_label_id()
-    {
-        return ! empty($this->_html_label_id) ? $this->_html_label_id : $this->html_id() . '-lbl';
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_label_class()
-    {
-        return $this->_html_label_class;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_label_style()
-    {
-        return $this->_html_label_style;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_label_text()
-    {
-        return $this->_html_label_text;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_help_text()
-    {
-        return $this->_html_help_text;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_help_class()
-    {
-        return $this->_html_help_class;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function html_help_style()
-    {
-        return $this->_html_style;
-    }
-
-
-
-    /**
-     * returns the raw, UNSAFE, input, almost exactly as the user submitted it.
-     * Please note that almost all client code should instead use the normalized_value;
-     * or possibly raw_value_in_form (which prepares the string for displaying in an HTML attribute on a tag,
-     * mostly by escaping quotes)
-     * Note, we do not store the exact original value sent in the user's request because
-     * it may have malicious content, and we MIGHT want to store the form input in a transient or something...
-     * in which case, we would have stored the malicious content to our database.
-     *
-     * @return string
-     */
-    public function raw_value()
-    {
-        return $this->_raw_value;
-    }
-
-
-
-    /**
-     * Returns a string safe to usage in form inputs when displaying, because
-     * it escapes all html entities
-     *
-     * @return string
-     */
-    public function raw_value_in_form()
-    {
-        return htmlentities($this->raw_value(), ENT_QUOTES, 'UTF-8');
-    }
-
-
-
-    /**
-     * returns the value after it's been sanitized, and then converted into it's proper type
-     * in PHP. Eg, a string, an int, an array,
-     *
-     * @return mixed
-     */
-    public function normalized_value()
-    {
-        return $this->_normalized_value;
-    }
-
-
-
-    /**
-     * Returns the normalized value is a presentable way. By default this is just
-     * the normalized value by itself, but it can be overridden for when that's not
-     * the best thing to display
-     *
-     * @return string
-     */
-    public function pretty_value()
-    {
-        return $this->_normalized_value;
-    }
-
-
-
-    /**
-     * When generating the JS for the jquery validation rules like<br>
-     * <code>$( "#myform" ).validate({
-     * rules: {
-     * password: "required",
-     * password_again: {
-     * equalTo: "#password"
-     * }
-     * }
-     * });</code>
-     * if this field had the name 'password_again', it should return
-     * <br><code>password_again: {
-     * equalTo: "#password"
-     * }</code>
-     *
-     * @return array
-     */
-    public function get_jquery_validation_rules()
-    {
-        $jquery_validation_js = array();
-        $jquery_validation_rules = array();
-        foreach ($this->get_validation_strategies() as $validation_strategy) {
-            $jquery_validation_rules = array_replace_recursive(
-                $jquery_validation_rules,
-                $validation_strategy->get_jquery_validation_rule_array()
-            );
-        }
-        if (! empty($jquery_validation_rules)) {
-            foreach ($this->get_display_strategy()->get_html_input_ids(true) as $html_id_with_pound_sign) {
-                $jquery_validation_js[$html_id_with_pound_sign] = $jquery_validation_rules;
-            }
-        }
-        return $jquery_validation_js;
-    }
-
-
-
-    /**
-     * Sets the input's default value for use in displaying in the form. Note: value should be
-     * normalized (Eg, if providing a default of ra Yes_NO_Input you would provide TRUE or FALSE, not '1' or '0')
-     *
-     * @param mixed $value
-     * @return void
-     */
-    public function set_default($value)
-    {
-        $this->_default = $value;
-        $this->_set_normalized_value($value);
-        $this->_set_raw_value($value);
-    }
-
-
-
-    /**
-     * Sets the normalized value on this input
-     *
-     * @param mixed $value
-     */
-    protected function _set_normalized_value($value)
-    {
-        $this->_normalized_value = $value;
-    }
-
-
-
-    /**
-     * Sets the raw value on this input (ie, exactly as the user submitted it)
-     *
-     * @param mixed $value
-     */
-    protected function _set_raw_value($value)
-    {
-        $this->_raw_value = $this->_normalization_strategy->unnormalize($value);
-    }
-
-
-
-    /**
-     * Sets the HTML label text after it has already been defined
-     *
-     * @param string $label
-     * @return void
-     */
-    public function set_html_label_text($label)
-    {
-        $this->_html_label_text = $label;
-    }
-
-
-
-    /**
-     * Sets whether or not this field is required, and adjusts the validation strategy.
-     * If you want to use the EE_Conditionally_Required_Validation_Strategy,
-     * please add it as a validation strategy using add_validation_strategy as normal
-     *
-     * @param boolean $required boolean
-     * @param null    $required_text
-     */
-    public function set_required($required = true, $required_text = null)
-    {
-        $required = filter_var($required, FILTER_VALIDATE_BOOLEAN);
-        //whether $required is a string or a boolean, we want to add a required validation strategy
-        if ($required) {
-            $this->_add_validation_strategy(new EE_Required_Validation_Strategy($required_text));
-        } else {
-            $this->remove_validation_strategy('EE_Required_Validation_Strategy');
-        }
-        $this->_required = $required;
-    }
-
-
-
-    /**
-     * Returns whether or not this field is required
-     *
-     * @return boolean
-     */
-    public function required()
-    {
-        return $this->_required;
-    }
-
-
-
-    /**
-     * @param string $required_css_class
-     */
-    public function set_required_css_class($required_css_class)
-    {
-        $this->_required_css_class = $required_css_class;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function required_css_class()
-    {
-        return $this->_required_css_class;
-    }
-
-
-
-    /**
-     * @param bool $add_required
-     * @return string
-     */
-    public function html_class($add_required = false)
-    {
-        return $add_required && $this->required()
-            ? $this->required_css_class() . ' ' . $this->_html_class
-            : $this->_html_class;
-    }
-
-
-    /**
-     * Sets the help text, in case
-     *
-     * @param string $text
-     */
-    public function set_html_help_text($text)
-    {
-        $this->_html_help_text = $text;
-    }
-
-
-
-    /**
-     * Uses the sensitive data removal strategy to remove the sensitive data from this
-     * input. If there is any kind of sensitive data removal on this input, we clear
-     * out the raw value completely
-     *
-     * @return void
-     */
-    public function clean_sensitive_data()
-    {
-        //if we do ANY kind of sensitive data removal on this, then just clear out the raw value
-        //if we need more logic than this we'll make a strategy for it
-        if ($this->_sensitive_data_removal_strategy
-            && ! $this->_sensitive_data_removal_strategy instanceof EE_No_Sensitive_Data_Removal
-        ) {
-            $this->_set_raw_value(null);
-        }
-        //and clean the normalized value according to the appropriate strategy
-        $this->_set_normalized_value(
-            $this->get_sensitive_data_removal_strategy()->remove_sensitive_data(
-                $this->_normalized_value
-            )
-        );
-    }
-
-
-
-    /**
-     * @param bool   $primary
-     * @param string $button_size
-     * @param string $other_attributes
-     */
-    public function set_button_css_attributes($primary = true, $button_size = '', $other_attributes = '')
-    {
-        $button_css_attributes = 'button';
-        $button_css_attributes .= $primary === true ? ' button-primary' : ' button-secondary';
-        switch ($button_size) {
-            case 'xs' :
-            case 'extra-small' :
-                $button_css_attributes .= ' button-xs';
-                break;
-            case 'sm' :
-            case 'small' :
-                $button_css_attributes .= ' button-sm';
-                break;
-            case 'lg' :
-            case 'large' :
-                $button_css_attributes .= ' button-lg';
-                break;
-            case 'block' :
-                $button_css_attributes .= ' button-block';
-                break;
-            case 'md' :
-            case 'medium' :
-            default :
-                $button_css_attributes .= '';
-        }
-        $this->_button_css_attributes .= ! empty($other_attributes)
-            ? $button_css_attributes . ' ' . $other_attributes
-            : $button_css_attributes;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public function button_css_attributes()
-    {
-        if (empty($this->_button_css_attributes)) {
-            $this->set_button_css_attributes();
-        }
-        return $this->_button_css_attributes;
-    }
-
-
-
-    /**
-     * find_form_data_for_this_section
-     * using this section's name and its parents, finds the value of the form data that corresponds to it.
-     * For example, if this form section's HTML name is my_form[subform][form_input_1],
-     * then it's value should be in $_REQUEST at $_REQUEST['my_form']['subform']['form_input_1'].
-     * (If that doesn't exist, we also check for this subsection's name
-     * at the TOP LEVEL of the request data. Eg $_REQUEST['form_input_1'].)
-     * This function finds its value in the form.
-     *
-     * @param array $req_data
-     * @return mixed whatever the raw value of this form section is in the request data
-     * @throws \EE_Error
-     */
-    public function find_form_data_for_this_section($req_data)
-    {
-        // break up the html name by "[]"
-        if (strpos($this->html_name(), '[') !== false) {
-            $before_any_brackets = substr($this->html_name(), 0, strpos($this->html_name(), '['));
-        } else {
-            $before_any_brackets = $this->html_name();
-        }
-        // grab all of the segments
-        preg_match_all('~\[([^]]*)\]~', $this->html_name(), $matches);
-        if (isset($matches[1]) && is_array($matches[1])) {
-            $name_parts = $matches[1];
-            array_unshift($name_parts, $before_any_brackets);
-        } else {
-            $name_parts = array($before_any_brackets);
-        }
-        // now get the value for the input
-        $value = $this->_find_form_data_for_this_section_using_name_parts($name_parts, $req_data);
-        // check if this thing's name is at the TOP level of the request data
-        if ($value === null && isset($req_data[$this->name()])) {
-            $value = $req_data[$this->name()];
-        }
-        return $value;
-    }
-
-
-
-    /**
-     * @param array $html_name_parts
-     * @param array $req_data
-     * @return array | NULL
-     */
-    public function _find_form_data_for_this_section_using_name_parts($html_name_parts, $req_data)
-    {
-        $first_part_to_consider = array_shift($html_name_parts);
-        if (isset($req_data[$first_part_to_consider])) {
-            if (empty($html_name_parts)) {
-                return $req_data[$first_part_to_consider];
-            } else {
-                return $this->_find_form_data_for_this_section_using_name_parts(
-                    $html_name_parts,
-                    $req_data[$first_part_to_consider]
-                );
-            }
-        } else {
-            return null;
-        }
-    }
-
-
-
-    /**
-     * Checks if this form input's data is in the request data
-     *
-     * @param array $req_data like $_POST
-     * @return boolean
-     * @throws \EE_Error
-     */
-    public function form_data_present_in($req_data = null)
-    {
-        if ($req_data === null) {
-            $req_data = $_POST;
-        }
-        $checked_value = $this->find_form_data_for_this_section($req_data);
-        if ($checked_value !== null) {
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-
-
-    /**
-     * Overrides parent to add js data from validation and display strategies
-     *
-     * @param array $form_other_js_data
-     * @return array
-     */
-    public function get_other_js_data($form_other_js_data = array())
-    {
-        $form_other_js_data = $this->get_other_js_data_from_strategies($form_other_js_data);
-        return $form_other_js_data;
-    }
-
-
-
-    /**
-     * Gets other JS data for localization from this input's strategies, like
-     * the validation strategies and the display strategy
-     *
-     * @param array $form_other_js_data
-     * @return array
-     */
-    public function get_other_js_data_from_strategies($form_other_js_data = array())
-    {
-        $form_other_js_data = $this->get_display_strategy()->get_other_js_data($form_other_js_data);
-        foreach ($this->get_validation_strategies() as $validation_strategy) {
-            $form_other_js_data = $validation_strategy->get_other_js_data($form_other_js_data);
-        }
-        return $form_other_js_data;
-    }
-
-
-
-    /**
-     * Override parent because we want to give our strategies an opportunity to enqueue some js and css
-     *
-     * @return void
-     */
-    public function enqueue_js()
-    {
-        //ask our display strategy and validation strategies if they have js to enqueue
-        $this->enqueue_js_from_strategies();
-    }
-
-
-
-    /**
-     * Tells strategies when its ok to enqueue their js and css
-     *
-     * @return void
-     */
-    public function enqueue_js_from_strategies()
-    {
-        $this->get_display_strategy()->enqueue_js();
-        foreach ($this->get_validation_strategies() as $validation_strategy) {
-            $validation_strategy->enqueue_js();
-        }
-    }
-
-
-
-    /**
-     * Gets the default value set on the input (not the current value, which may have been
-     * changed because of a form submission). If no default was set, this us null.
-     * @return mixed
-     */
-    public function get_default()
-    {
-        return $this->_default;
-    }
+	/**
+	 * the input's name attribute
+	 *
+	 * @var string
+	 */
+	protected $_html_name;
+
+	/**
+	 * id for the html label tag
+	 *
+	 * @var string
+	 */
+	protected $_html_label_id;
+
+	/**
+	 * class for teh html label tag
+	 *
+	 * @var string
+	 */
+	protected $_html_label_class;
+
+	/**
+	 * any additional html attributes that you may want to add
+	 *
+	 * @var string
+	 */
+	protected $_html_other_attributes;
+
+	/**
+	 * style for teh html label tag
+	 *
+	 * @var string
+	 */
+	protected $_html_label_style;
+
+	/**
+	 * text to be placed in the html label
+	 *
+	 * @var string
+	 */
+	protected $_html_label_text;
+
+	/**
+	 * the full html label. If used, all other html_label_* properties are invalid
+	 *
+	 * @var string
+	 */
+	protected $_html_label;
+
+	/**
+	 * HTML to use for help text (normally placed below form input), in a span which normally
+	 * has a class of 'description'
+	 *
+	 * @var string
+	 */
+	protected $_html_help_text;
+
+	/**
+	 * CSS classes for displaying the help span
+	 *
+	 * @var string
+	 */
+	protected $_html_help_class = 'description';
+
+	/**
+	 * CSS to put in the style attribute on the help span
+	 *
+	 * @var string
+	 */
+	protected $_html_help_style;
+
+	/**
+	 * Stores whether or not this input's response is required.
+	 * Because certain styling elements may also want to know that this
+	 * input is required etc.
+	 *
+	 * @var boolean
+	 */
+	protected $_required;
+
+	/**
+	 * css class added to required inputs
+	 *
+	 * @var string
+	 */
+	protected $_required_css_class = 'ee-required';
+
+	/**
+	 * css styles applied to button type inputs
+	 *
+	 * @var string
+	 */
+	protected $_button_css_attributes;
+
+	/**
+	 * The raw data submitted for this, like in the $_POST super global.
+	 * Generally unsafe for usage in client code
+	 *
+	 * @var mixed string or array
+	 */
+	protected $_raw_value;
+
+	/**
+	 * Value normalized according to the input's normalization strategy.
+	 * The normalization strategy dictates whether this is a string, int, float,
+	 * boolean, or array of any of those.
+	 *
+	 * @var mixed
+	 */
+	protected $_normalized_value;
+
+
+	/**
+	 * Normalized default value either initially set on the input, or provided by calling
+	 * set_default().
+	 * @var mixed
+	 */
+	protected $_default;
+
+	/**
+	 * Strategy used for displaying this field.
+	 * Child classes must use _get_display_strategy to access it.
+	 *
+	 * @var EE_Display_Strategy_Base
+	 */
+	private $_display_strategy;
+
+	/**
+	 * Gets all the validation strategies used on this field
+	 *
+	 * @var EE_Validation_Strategy_Base[]
+	 */
+	private $_validation_strategies = array();
+
+	/**
+	 * The normalization strategy for this field
+	 *
+	 * @var EE_Normalization_Strategy_Base
+	 */
+	private $_normalization_strategy;
+
+	/**
+	 * Strategy for removing sensitive data after we're done with the form input
+	 *
+	 * @var EE_Sensitive_Data_Removal_Base
+	 */
+	protected $_sensitive_data_removal_strategy;
+
+
+
+	/**
+	 * @param array                         $input_args       {
+	 * @type string                         $html_name        the html name for the input
+	 * @type string                         $html_label_id    the id attribute to give to the html label tag
+	 * @type string                         $html_label_class the class attribute to give to the html label tag
+	 * @type string                         $html_label_style the style attribute to give ot teh label tag
+	 * @type string                         $html_label_text  the text to put in the label tag
+	 * @type string                         $html_label       the full html label. If used,
+	 *                                                        all other html_label_* args are invalid
+	 * @type string                         $html_help_text   text to put in help element
+	 * @type string                         $html_help_style  style attribute to give to teh help element
+	 * @type string                         $html_help_class  class attribute to give to the help element
+	 * @type string                         $default          default value NORMALIZED (eg, if providing the default
+	 *       for a Yes_No_Input, you should provide TRUE or FALSE, not '1' or '0')
+	 * @type EE_Display_Strategy_Base       $display          strategy
+	 * @type EE_Normalization_Strategy_Base $normalization_strategy
+	 * @type EE_Validation_Strategy_Base[]  $validation_strategies
+	 * @type boolean                        $ignore_input special argument which can be used to avoid adding any validation strategies,
+	 *                                                    and sets the normalization strategy to the Null normalization. This is good
+	 *                                                    when you want the input to be totally ignored server-side (like when using
+	 *                                                    React.js form inputs)
+	 *                                                        }
+	 */
+	public function __construct($input_args = array())
+	{
+		$input_args = (array)apply_filters('FHEE__EE_Form_Input_Base___construct__input_args', $input_args, $this);
+		// the following properties must be cast as arrays
+		if (isset($input_args['validation_strategies'])) {
+			foreach ((array)$input_args['validation_strategies'] as $validation_strategy) {
+				if ($validation_strategy instanceof EE_Validation_Strategy_Base && empty($input_args['ignore_input'])) {
+					$this->_validation_strategies[get_class($validation_strategy)] = $validation_strategy;
+				}
+			}
+			unset($input_args['validation_strategies']);
+		}
+		if(isset($input_args['ignore_input'])) {
+			$this->_validation_strategies = array();
+		}
+		// loop thru incoming options
+		foreach ($input_args as $key => $value) {
+			// add underscore to $key to match property names
+			$_key = '_' . $key;
+			if (property_exists($this, $_key)) {
+				$this->{$_key} = $value;
+			}
+		}
+		// ensure that "required" is set correctly
+		$this->set_required(
+			$this->_required, isset($input_args['required_validation_error_message'])
+			? $input_args['required_validation_error_message']
+			: null
+		);
+		//$this->_html_name_specified = isset( $input_args['html_name'] ) ? TRUE : FALSE;
+		$this->_display_strategy->_construct_finalize($this);
+		foreach ($this->_validation_strategies as $validation_strategy) {
+			$validation_strategy->_construct_finalize($this);
+		}
+		if (isset($input_args['ignore_input'])) {
+			$this->_normalization_strategy = new EE_Null_Normalization();
+		}
+		if (! $this->_normalization_strategy) {
+				$this->_normalization_strategy = new EE_Text_Normalization();
+		}
+		$this->_normalization_strategy->_construct_finalize($this);
+		//at least we can use the normalization strategy to populate the default
+		if (isset($input_args['default'])) {
+			$this->set_default($input_args['default']);
+			unset($input_args['default']);
+		}
+		if (! $this->_sensitive_data_removal_strategy) {
+			$this->_sensitive_data_removal_strategy = new EE_No_Sensitive_Data_Removal();
+		}
+		$this->_sensitive_data_removal_strategy->_construct_finalize($this);
+		parent::__construct($input_args);
+	}
+
+
+
+	/**
+	 * Sets the html_name to its default value, if none was specified in teh constructor.
+	 * Calculation involves using the name and the parent's html_name
+	 *
+	 * @throws \EE_Error
+	 */
+	protected function _set_default_html_name_if_empty()
+	{
+		if (! $this->_html_name) {
+			$this->_html_name = $this->name();
+			if ($this->_parent_section && $this->_parent_section instanceof EE_Form_Section_Proper) {
+				$this->_html_name = $this->_parent_section->html_name_prefix() . "[{$this->name()}]";
+			}
+		}
+	}
+
+
+
+	/**
+	 * @param $parent_form_section
+	 * @param $name
+	 * @throws \EE_Error
+	 */
+	public function _construct_finalize($parent_form_section, $name)
+	{
+		parent::_construct_finalize($parent_form_section, $name);
+		if ($this->_html_label === null && $this->_html_label_text === null) {
+			$this->_html_label_text = ucwords(str_replace("_", " ", $name));
+		}
+		do_action('AHEE__EE_Form_Input_Base___construct_finalize__end', $this, $parent_form_section, $name);
+	}
+
+
+
+	/**
+	 * Returns the strategy for displaying this form input. If none is set, throws an exception.
+	 *
+	 * @return EE_Display_Strategy_Base
+	 * @throws EE_Error
+	 */
+	protected function _get_display_strategy()
+	{
+		$this->ensure_construct_finalized_called();
+		if (! $this->_display_strategy || ! $this->_display_strategy instanceof EE_Display_Strategy_Base) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						"Cannot get display strategy for form input with name %s and id %s, because it has not been set in the constructor",
+						"event_espresso"
+					),
+					$this->html_name(),
+					$this->html_id()
+				)
+			);
+		} else {
+			return $this->_display_strategy;
+		}
+	}
+
+
+
+	/**
+	 * Sets the display strategy.
+	 *
+	 * @param EE_Display_Strategy_Base $strategy
+	 */
+	protected function _set_display_strategy(EE_Display_Strategy_Base $strategy)
+	{
+		$this->_display_strategy = $strategy;
+	}
+
+
+
+	/**
+	 * Sets the sanitization strategy
+	 *
+	 * @param EE_Normalization_Strategy_Base $strategy
+	 */
+	protected function _set_normalization_strategy(EE_Normalization_Strategy_Base $strategy)
+	{
+		$this->_normalization_strategy = $strategy;
+	}
+
+
+
+	/**
+	 * Gets sensitive_data_removal_strategy
+	 *
+	 * @return EE_Sensitive_Data_Removal_Base
+	 */
+	public function get_sensitive_data_removal_strategy()
+	{
+		return $this->_sensitive_data_removal_strategy;
+	}
+
+
+
+	/**
+	 * Sets sensitive_data_removal_strategy
+	 *
+	 * @param EE_Sensitive_Data_Removal_Base $sensitive_data_removal_strategy
+	 * @return boolean
+	 */
+	public function set_sensitive_data_removal_strategy($sensitive_data_removal_strategy)
+	{
+		$this->_sensitive_data_removal_strategy = $sensitive_data_removal_strategy;
+	}
+
+
+
+	/**
+	 * Gets the display strategy for this input
+	 *
+	 * @return EE_Display_Strategy_Base
+	 */
+	public function get_display_strategy()
+	{
+		return $this->_display_strategy;
+	}
+
+
+
+	/**
+	 * Overwrites the display strategy
+	 *
+	 * @param EE_Display_Strategy_Base $display_strategy
+	 */
+	public function set_display_strategy($display_strategy)
+	{
+		$this->_display_strategy = $display_strategy;
+		$this->_display_strategy->_construct_finalize($this);
+	}
+
+
+
+	/**
+	 * Gets the normalization strategy set on this input
+	 *
+	 * @return EE_Normalization_Strategy_Base
+	 */
+	public function get_normalization_strategy()
+	{
+		return $this->_normalization_strategy;
+	}
+
+
+
+	/**
+	 * Overwrites the normalization strategy
+	 *
+	 * @param EE_Normalization_Strategy_Base $normalization_strategy
+	 */
+	public function set_normalization_strategy($normalization_strategy)
+	{
+		$this->_normalization_strategy = $normalization_strategy;
+		$this->_normalization_strategy->_construct_finalize($this);
+	}
+
+
+
+	/**
+	 * Returns all teh validation strategies which apply to this field, numerically indexed
+	 *
+	 * @return EE_Validation_Strategy_Base[]
+	 */
+	public function get_validation_strategies()
+	{
+		return $this->_validation_strategies;
+	}
+
+
+
+	/**
+	 * Adds this strategy to the field so it will be used in both JS validation and server-side validation
+	 *
+	 * @param EE_Validation_Strategy_Base $validation_strategy
+	 * @return void
+	 */
+	protected function _add_validation_strategy(EE_Validation_Strategy_Base $validation_strategy)
+	{
+		$validation_strategy->_construct_finalize($this);
+		$this->_validation_strategies[] = $validation_strategy;
+	}
+
+
+
+	/**
+	 * Adds a new validation strategy onto the form input
+	 *
+	 * @param EE_Validation_Strategy_Base $validation_strategy
+	 * @return void
+	 */
+	public function add_validation_strategy(EE_Validation_Strategy_Base $validation_strategy)
+	{
+		$this->_add_validation_strategy($validation_strategy);
+	}
+
+
+
+	/**
+	 * The classname of the validation strategy to remove
+	 *
+	 * @param string $validation_strategy_classname
+	 */
+	public function remove_validation_strategy($validation_strategy_classname)
+	{
+		foreach ($this->_validation_strategies as $key => $validation_strategy) {
+			if (
+				$validation_strategy instanceof $validation_strategy_classname
+				|| is_subclass_of($validation_strategy, $validation_strategy_classname)
+			) {
+				unset($this->_validation_strategies[$key]);
+			}
+		}
+	}
+
+
+
+	/**
+	 * returns true if input employs any of the validation strategy defined by the supplied array of classnames
+	 *
+	 * @param array $validation_strategy_classnames
+	 * @return bool
+	 */
+	public function has_validation_strategy($validation_strategy_classnames)
+	{
+		$validation_strategy_classnames = is_array($validation_strategy_classnames)
+			? $validation_strategy_classnames
+			: array($validation_strategy_classnames);
+		foreach ($this->_validation_strategies as $key => $validation_strategy) {
+			if (in_array($key, $validation_strategy_classnames)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+
+
+	/**
+	 * Gets the HTML
+	 *
+	 * @return string
+	 */
+	public function get_html()
+	{
+		return $this->_parent_section->get_html_for_input($this);
+	}
+
+
+
+	/**
+	 * Gets the HTML for the input itself (no label or errors) according to the
+	 * input's display strategy
+	 * Makes sure the JS and CSS are enqueued for it
+	 *
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public function get_html_for_input()
+	{
+		return $this->_form_html_filter
+			? $this->_form_html_filter->filterHtml(
+				$this->_get_display_strategy()->display(),
+				$this
+			)
+			: $this->_get_display_strategy()->display();
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_other_attributes()
+	{
+		return ! empty($this->_html_other_attributes) ? ' ' . $this->_html_other_attributes : '';
+	}
+
+
+
+	/**
+	 * @param string $html_other_attributes
+	 */
+	public function set_html_other_attributes($html_other_attributes)
+	{
+		$this->_html_other_attributes = $html_other_attributes;
+	}
+
+
+
+	/**
+	 * Gets the HTML for displaying the label for this form input
+	 * according to the form section's layout strategy
+	 *
+	 * @return string
+	 */
+	public function get_html_for_label()
+	{
+		return $this->_parent_section->get_layout_strategy()->display_label($this);
+	}
+
+
+
+	/**
+	 * Gets the HTML for displaying the errors section for this form input
+	 * according to the form section's layout strategy
+	 *
+	 * @return string
+	 */
+	public function get_html_for_errors()
+	{
+		return $this->_parent_section->get_layout_strategy()->display_errors($this);
+	}
+
+
+
+	/**
+	 * Gets the HTML for displaying the help text for this form input
+	 * according to the form section's layout strategy
+	 *
+	 * @return string
+	 */
+	public function get_html_for_help()
+	{
+		return $this->_parent_section->get_layout_strategy()->display_help_text($this);
+	}
+
+
+
+	/**
+	 * Validates the input's sanitized value (assumes _sanitize() has already been called)
+	 * and returns whether or not the form input's submitted value is value
+	 *
+	 * @return boolean
+	 */
+	protected function _validate()
+	{
+		foreach ($this->_validation_strategies as $validation_strategy) {
+			if ($validation_strategy instanceof EE_Validation_Strategy_Base) {
+				try {
+					$validation_strategy->validate($this->normalized_value());
+				} catch (EE_Validation_Error $e) {
+					$this->add_validation_error($e);
+				}
+			}
+		}
+		if ($this->get_validation_errors()) {
+			return false;
+		} else {
+			return true;
+		}
+	}
+
+
+
+	/**
+	 * Performs basic sanitization on this value. But what sanitization can be performed anyways?
+	 * This value MIGHT be allowed to have tags, so we can't really remove them.
+	 *
+	 * @param string $value
+	 * @return null|string
+	 */
+	private function _sanitize($value)
+	{
+		return $value !== null ? stripslashes(html_entity_decode(trim($value))) : null;
+	}
+
+
+
+	/**
+	 * Picks out the form value that relates to this form input,
+	 * and stores it as the sanitized value on the form input, and sets the normalized value.
+	 * Returns whether or not any validation errors occurred
+	 *
+	 * @param array $req_data like $_POST
+	 * @return boolean whether or not there was an error
+	 * @throws \EE_Error
+	 */
+	protected function _normalize($req_data)
+	{
+		//any existing validation errors don't apply so clear them
+		$this->_validation_errors = array();
+		try {
+			$raw_input = $this->find_form_data_for_this_section($req_data);
+			//super simple sanitization for now
+			if (is_array($raw_input)) {
+				$raw_value = array();
+				foreach ($raw_input as $key => $value) {
+					$raw_value[$key] = $this->_sanitize($value);
+				}
+				$this->_set_raw_value($raw_value);
+			} else {
+				$this->_set_raw_value($this->_sanitize($raw_input));
+			}
+			//we want to mostly leave the input alone in case we need to re-display it to the user
+			$this->_set_normalized_value($this->_normalization_strategy->normalize($this->raw_value()));
+		} catch (EE_Validation_Error $e) {
+			$this->add_validation_error($e);
+		}
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_name()
+	{
+		$this->_set_default_html_name_if_empty();
+		return $this->_html_name;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_label_id()
+	{
+		return ! empty($this->_html_label_id) ? $this->_html_label_id : $this->html_id() . '-lbl';
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_label_class()
+	{
+		return $this->_html_label_class;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_label_style()
+	{
+		return $this->_html_label_style;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_label_text()
+	{
+		return $this->_html_label_text;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_help_text()
+	{
+		return $this->_html_help_text;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_help_class()
+	{
+		return $this->_html_help_class;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function html_help_style()
+	{
+		return $this->_html_style;
+	}
+
+
+
+	/**
+	 * returns the raw, UNSAFE, input, almost exactly as the user submitted it.
+	 * Please note that almost all client code should instead use the normalized_value;
+	 * or possibly raw_value_in_form (which prepares the string for displaying in an HTML attribute on a tag,
+	 * mostly by escaping quotes)
+	 * Note, we do not store the exact original value sent in the user's request because
+	 * it may have malicious content, and we MIGHT want to store the form input in a transient or something...
+	 * in which case, we would have stored the malicious content to our database.
+	 *
+	 * @return string
+	 */
+	public function raw_value()
+	{
+		return $this->_raw_value;
+	}
+
+
+
+	/**
+	 * Returns a string safe to usage in form inputs when displaying, because
+	 * it escapes all html entities
+	 *
+	 * @return string
+	 */
+	public function raw_value_in_form()
+	{
+		return htmlentities($this->raw_value(), ENT_QUOTES, 'UTF-8');
+	}
+
+
+
+	/**
+	 * returns the value after it's been sanitized, and then converted into it's proper type
+	 * in PHP. Eg, a string, an int, an array,
+	 *
+	 * @return mixed
+	 */
+	public function normalized_value()
+	{
+		return $this->_normalized_value;
+	}
+
+
+
+	/**
+	 * Returns the normalized value is a presentable way. By default this is just
+	 * the normalized value by itself, but it can be overridden for when that's not
+	 * the best thing to display
+	 *
+	 * @return string
+	 */
+	public function pretty_value()
+	{
+		return $this->_normalized_value;
+	}
+
+
+
+	/**
+	 * When generating the JS for the jquery validation rules like<br>
+	 * <code>$( "#myform" ).validate({
+	 * rules: {
+	 * password: "required",
+	 * password_again: {
+	 * equalTo: "#password"
+	 * }
+	 * }
+	 * });</code>
+	 * if this field had the name 'password_again', it should return
+	 * <br><code>password_again: {
+	 * equalTo: "#password"
+	 * }</code>
+	 *
+	 * @return array
+	 */
+	public function get_jquery_validation_rules()
+	{
+		$jquery_validation_js = array();
+		$jquery_validation_rules = array();
+		foreach ($this->get_validation_strategies() as $validation_strategy) {
+			$jquery_validation_rules = array_replace_recursive(
+				$jquery_validation_rules,
+				$validation_strategy->get_jquery_validation_rule_array()
+			);
+		}
+		if (! empty($jquery_validation_rules)) {
+			foreach ($this->get_display_strategy()->get_html_input_ids(true) as $html_id_with_pound_sign) {
+				$jquery_validation_js[$html_id_with_pound_sign] = $jquery_validation_rules;
+			}
+		}
+		return $jquery_validation_js;
+	}
+
+
+
+	/**
+	 * Sets the input's default value for use in displaying in the form. Note: value should be
+	 * normalized (Eg, if providing a default of ra Yes_NO_Input you would provide TRUE or FALSE, not '1' or '0')
+	 *
+	 * @param mixed $value
+	 * @return void
+	 */
+	public function set_default($value)
+	{
+		$this->_default = $value;
+		$this->_set_normalized_value($value);
+		$this->_set_raw_value($value);
+	}
+
+
+
+	/**
+	 * Sets the normalized value on this input
+	 *
+	 * @param mixed $value
+	 */
+	protected function _set_normalized_value($value)
+	{
+		$this->_normalized_value = $value;
+	}
+
+
+
+	/**
+	 * Sets the raw value on this input (ie, exactly as the user submitted it)
+	 *
+	 * @param mixed $value
+	 */
+	protected function _set_raw_value($value)
+	{
+		$this->_raw_value = $this->_normalization_strategy->unnormalize($value);
+	}
+
+
+
+	/**
+	 * Sets the HTML label text after it has already been defined
+	 *
+	 * @param string $label
+	 * @return void
+	 */
+	public function set_html_label_text($label)
+	{
+		$this->_html_label_text = $label;
+	}
+
+
+
+	/**
+	 * Sets whether or not this field is required, and adjusts the validation strategy.
+	 * If you want to use the EE_Conditionally_Required_Validation_Strategy,
+	 * please add it as a validation strategy using add_validation_strategy as normal
+	 *
+	 * @param boolean $required boolean
+	 * @param null    $required_text
+	 */
+	public function set_required($required = true, $required_text = null)
+	{
+		$required = filter_var($required, FILTER_VALIDATE_BOOLEAN);
+		//whether $required is a string or a boolean, we want to add a required validation strategy
+		if ($required) {
+			$this->_add_validation_strategy(new EE_Required_Validation_Strategy($required_text));
+		} else {
+			$this->remove_validation_strategy('EE_Required_Validation_Strategy');
+		}
+		$this->_required = $required;
+	}
+
+
+
+	/**
+	 * Returns whether or not this field is required
+	 *
+	 * @return boolean
+	 */
+	public function required()
+	{
+		return $this->_required;
+	}
+
+
+
+	/**
+	 * @param string $required_css_class
+	 */
+	public function set_required_css_class($required_css_class)
+	{
+		$this->_required_css_class = $required_css_class;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function required_css_class()
+	{
+		return $this->_required_css_class;
+	}
+
+
+
+	/**
+	 * @param bool $add_required
+	 * @return string
+	 */
+	public function html_class($add_required = false)
+	{
+		return $add_required && $this->required()
+			? $this->required_css_class() . ' ' . $this->_html_class
+			: $this->_html_class;
+	}
+
+
+	/**
+	 * Sets the help text, in case
+	 *
+	 * @param string $text
+	 */
+	public function set_html_help_text($text)
+	{
+		$this->_html_help_text = $text;
+	}
+
+
+
+	/**
+	 * Uses the sensitive data removal strategy to remove the sensitive data from this
+	 * input. If there is any kind of sensitive data removal on this input, we clear
+	 * out the raw value completely
+	 *
+	 * @return void
+	 */
+	public function clean_sensitive_data()
+	{
+		//if we do ANY kind of sensitive data removal on this, then just clear out the raw value
+		//if we need more logic than this we'll make a strategy for it
+		if ($this->_sensitive_data_removal_strategy
+			&& ! $this->_sensitive_data_removal_strategy instanceof EE_No_Sensitive_Data_Removal
+		) {
+			$this->_set_raw_value(null);
+		}
+		//and clean the normalized value according to the appropriate strategy
+		$this->_set_normalized_value(
+			$this->get_sensitive_data_removal_strategy()->remove_sensitive_data(
+				$this->_normalized_value
+			)
+		);
+	}
+
+
+
+	/**
+	 * @param bool   $primary
+	 * @param string $button_size
+	 * @param string $other_attributes
+	 */
+	public function set_button_css_attributes($primary = true, $button_size = '', $other_attributes = '')
+	{
+		$button_css_attributes = 'button';
+		$button_css_attributes .= $primary === true ? ' button-primary' : ' button-secondary';
+		switch ($button_size) {
+			case 'xs' :
+			case 'extra-small' :
+				$button_css_attributes .= ' button-xs';
+				break;
+			case 'sm' :
+			case 'small' :
+				$button_css_attributes .= ' button-sm';
+				break;
+			case 'lg' :
+			case 'large' :
+				$button_css_attributes .= ' button-lg';
+				break;
+			case 'block' :
+				$button_css_attributes .= ' button-block';
+				break;
+			case 'md' :
+			case 'medium' :
+			default :
+				$button_css_attributes .= '';
+		}
+		$this->_button_css_attributes .= ! empty($other_attributes)
+			? $button_css_attributes . ' ' . $other_attributes
+			: $button_css_attributes;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function button_css_attributes()
+	{
+		if (empty($this->_button_css_attributes)) {
+			$this->set_button_css_attributes();
+		}
+		return $this->_button_css_attributes;
+	}
+
+
+
+	/**
+	 * find_form_data_for_this_section
+	 * using this section's name and its parents, finds the value of the form data that corresponds to it.
+	 * For example, if this form section's HTML name is my_form[subform][form_input_1],
+	 * then it's value should be in $_REQUEST at $_REQUEST['my_form']['subform']['form_input_1'].
+	 * (If that doesn't exist, we also check for this subsection's name
+	 * at the TOP LEVEL of the request data. Eg $_REQUEST['form_input_1'].)
+	 * This function finds its value in the form.
+	 *
+	 * @param array $req_data
+	 * @return mixed whatever the raw value of this form section is in the request data
+	 * @throws \EE_Error
+	 */
+	public function find_form_data_for_this_section($req_data)
+	{
+		// break up the html name by "[]"
+		if (strpos($this->html_name(), '[') !== false) {
+			$before_any_brackets = substr($this->html_name(), 0, strpos($this->html_name(), '['));
+		} else {
+			$before_any_brackets = $this->html_name();
+		}
+		// grab all of the segments
+		preg_match_all('~\[([^]]*)\]~', $this->html_name(), $matches);
+		if (isset($matches[1]) && is_array($matches[1])) {
+			$name_parts = $matches[1];
+			array_unshift($name_parts, $before_any_brackets);
+		} else {
+			$name_parts = array($before_any_brackets);
+		}
+		// now get the value for the input
+		$value = $this->_find_form_data_for_this_section_using_name_parts($name_parts, $req_data);
+		// check if this thing's name is at the TOP level of the request data
+		if ($value === null && isset($req_data[$this->name()])) {
+			$value = $req_data[$this->name()];
+		}
+		return $value;
+	}
+
+
+
+	/**
+	 * @param array $html_name_parts
+	 * @param array $req_data
+	 * @return array | NULL
+	 */
+	public function _find_form_data_for_this_section_using_name_parts($html_name_parts, $req_data)
+	{
+		$first_part_to_consider = array_shift($html_name_parts);
+		if (isset($req_data[$first_part_to_consider])) {
+			if (empty($html_name_parts)) {
+				return $req_data[$first_part_to_consider];
+			} else {
+				return $this->_find_form_data_for_this_section_using_name_parts(
+					$html_name_parts,
+					$req_data[$first_part_to_consider]
+				);
+			}
+		} else {
+			return null;
+		}
+	}
+
+
+
+	/**
+	 * Checks if this form input's data is in the request data
+	 *
+	 * @param array $req_data like $_POST
+	 * @return boolean
+	 * @throws \EE_Error
+	 */
+	public function form_data_present_in($req_data = null)
+	{
+		if ($req_data === null) {
+			$req_data = $_POST;
+		}
+		$checked_value = $this->find_form_data_for_this_section($req_data);
+		if ($checked_value !== null) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+
+
+	/**
+	 * Overrides parent to add js data from validation and display strategies
+	 *
+	 * @param array $form_other_js_data
+	 * @return array
+	 */
+	public function get_other_js_data($form_other_js_data = array())
+	{
+		$form_other_js_data = $this->get_other_js_data_from_strategies($form_other_js_data);
+		return $form_other_js_data;
+	}
+
+
+
+	/**
+	 * Gets other JS data for localization from this input's strategies, like
+	 * the validation strategies and the display strategy
+	 *
+	 * @param array $form_other_js_data
+	 * @return array
+	 */
+	public function get_other_js_data_from_strategies($form_other_js_data = array())
+	{
+		$form_other_js_data = $this->get_display_strategy()->get_other_js_data($form_other_js_data);
+		foreach ($this->get_validation_strategies() as $validation_strategy) {
+			$form_other_js_data = $validation_strategy->get_other_js_data($form_other_js_data);
+		}
+		return $form_other_js_data;
+	}
+
+
+
+	/**
+	 * Override parent because we want to give our strategies an opportunity to enqueue some js and css
+	 *
+	 * @return void
+	 */
+	public function enqueue_js()
+	{
+		//ask our display strategy and validation strategies if they have js to enqueue
+		$this->enqueue_js_from_strategies();
+	}
+
+
+
+	/**
+	 * Tells strategies when its ok to enqueue their js and css
+	 *
+	 * @return void
+	 */
+	public function enqueue_js_from_strategies()
+	{
+		$this->get_display_strategy()->enqueue_js();
+		foreach ($this->get_validation_strategies() as $validation_strategy) {
+			$validation_strategy->enqueue_js();
+		}
+	}
+
+
+
+	/**
+	 * Gets the default value set on the input (not the current value, which may have been
+	 * changed because of a form submission). If no default was set, this us null.
+	 * @return mixed
+	 */
+	public function get_default()
+	{
+		return $this->_default;
+	}
 }

Spacing +15 added lines, -15 removed lines

@@ -1,4 +1,4 @@ 
-<?php if (! defined('EVENT_ESPRESSO_VERSION')) {
+<?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {
     exit('No direct script access allowed');
 }
 
@@ -191,23 +191,23 @@ 
      */
     public function __construct($input_args = array())
     {
-        $input_args = (array)apply_filters('FHEE__EE_Form_Input_Base___construct__input_args', $input_args, $this);
+        $input_args = (array) apply_filters('FHEE__EE_Form_Input_Base___construct__input_args', $input_args, $this);
         // the following properties must be cast as arrays
         if (isset($input_args['validation_strategies'])) {
-            foreach ((array)$input_args['validation_strategies'] as $validation_strategy) {
+            foreach ((array) $input_args['validation_strategies'] as $validation_strategy) {
                 if ($validation_strategy instanceof EE_Validation_Strategy_Base && empty($input_args['ignore_input'])) {
                     $this->_validation_strategies[get_class($validation_strategy)] = $validation_strategy;
                 }
             }
             unset($input_args['validation_strategies']);
         }
-        if(isset($input_args['ignore_input'])) {
+        if (isset($input_args['ignore_input'])) {
             $this->_validation_strategies = array();
         }
         // loop thru incoming options
         foreach ($input_args as $key => $value) {
             // add underscore to $key to match property names
-            $_key = '_' . $key;
+            $_key = '_'.$key;
             if (property_exists($this, $_key)) {
                 $this->{$_key} = $value;
             }
@@ -226,7 +226,7 @@ 
         if (isset($input_args['ignore_input'])) {
             $this->_normalization_strategy = new EE_Null_Normalization();
         }
-        if (! $this->_normalization_strategy) {
+        if ( ! $this->_normalization_strategy) {
                 $this->_normalization_strategy = new EE_Text_Normalization();
         }
         $this->_normalization_strategy->_construct_finalize($this);
@@ -235,7 +235,7 @@ 
             $this->set_default($input_args['default']);
             unset($input_args['default']);
         }
-        if (! $this->_sensitive_data_removal_strategy) {
+        if ( ! $this->_sensitive_data_removal_strategy) {
             $this->_sensitive_data_removal_strategy = new EE_No_Sensitive_Data_Removal();
         }
         $this->_sensitive_data_removal_strategy->_construct_finalize($this);
@@ -252,10 +252,10 @@ 
      */
     protected function _set_default_html_name_if_empty()
     {
-        if (! $this->_html_name) {
+        if ( ! $this->_html_name) {
             $this->_html_name = $this->name();
             if ($this->_parent_section && $this->_parent_section instanceof EE_Form_Section_Proper) {
-                $this->_html_name = $this->_parent_section->html_name_prefix() . "[{$this->name()}]";
+                $this->_html_name = $this->_parent_section->html_name_prefix()."[{$this->name()}]";
             }
         }
     }
@@ -287,7 +287,7 @@ 
     protected function _get_display_strategy()
     {
         $this->ensure_construct_finalized_called();
-        if (! $this->_display_strategy || ! $this->_display_strategy instanceof EE_Display_Strategy_Base) {
+        if ( ! $this->_display_strategy || ! $this->_display_strategy instanceof EE_Display_Strategy_Base) {
             throw new EE_Error(
                 sprintf(
                     __(
@@ -520,7 +520,7 @@ 
      */
     public function html_other_attributes()
     {
-        return ! empty($this->_html_other_attributes) ? ' ' . $this->_html_other_attributes : '';
+        return ! empty($this->_html_other_attributes) ? ' '.$this->_html_other_attributes : '';
     }
 
 
@@ -664,7 +664,7 @@ 
      */
     public function html_label_id()
     {
-        return ! empty($this->_html_label_id) ? $this->_html_label_id : $this->html_id() . '-lbl';
+        return ! empty($this->_html_label_id) ? $this->_html_label_id : $this->html_id().'-lbl';
     }
 
 
@@ -814,7 +814,7 @@ 
                 $validation_strategy->get_jquery_validation_rule_array()
             );
         }
-        if (! empty($jquery_validation_rules)) {
+        if ( ! empty($jquery_validation_rules)) {
             foreach ($this->get_display_strategy()->get_html_input_ids(true) as $html_id_with_pound_sign) {
                 $jquery_validation_js[$html_id_with_pound_sign] = $jquery_validation_rules;
             }
@@ -938,7 +938,7 @@ 
     public function html_class($add_required = false)
     {
         return $add_required && $this->required()
-            ? $this->required_css_class() . ' ' . $this->_html_class
+            ? $this->required_css_class().' '.$this->_html_class
             : $this->_html_class;
     }
 
@@ -1012,7 +1012,7 @@ 
                 $button_css_attributes .= '';
         }
         $this->_button_css_attributes .= ! empty($other_attributes)
-            ? $button_css_attributes . ' ' . $other_attributes
+            ? $button_css_attributes.' '.$other_attributes
             : $button_css_attributes;
     }
 

core/libraries/form_sections/base/EE_Form_Section_Proper.form.php

Doc Comments +1 added lines, -2 removed lines

@@ -459,7 +459,7 @@ 
      *                                                      with construction finalize being called later
      *                                                      (realizing that the subsections' html names
      *                                                      might not be set yet, etc.)
-     * @return EE_Form_Section_Base
+     * @return EE_Form_Section_Validatable|null
      * @throws EE_Error
      */
     public function get_subsection($name, $require_construction_to_be_finalized = true)
@@ -1289,7 +1289,6 @@ 
     /**
      * Sets the submission error message (aka validation error message for this form section and all sub-sections)
      * @param string                           $form_submission_error_message
-     * @param EE_Form_Section_Validatable $form_section unused
      * @throws EE_Error
      */
     public function set_submission_error_message(

Spacing +41 added lines, -41 removed lines

@@ -111,8 +111,8 @@ 
             //AND we are going to make sure they're in that specified order
             $reordered_subsections = array();
             foreach ($options_array['include'] as $input_name) {
-                if (isset($this->_subsections[ $input_name ])) {
-                    $reordered_subsections[ $input_name ] = $this->_subsections[ $input_name ];
+                if (isset($this->_subsections[$input_name])) {
+                    $reordered_subsections[$input_name] = $this->_subsections[$input_name];
                 }
             }
             $this->_subsections = $reordered_subsections;
@@ -124,7 +124,7 @@ 
         if (isset($options_array['layout_strategy'])) {
             $this->_layout_strategy = $options_array['layout_strategy'];
         }
-        if (! $this->_layout_strategy) {
+        if ( ! $this->_layout_strategy) {
             $this->_layout_strategy = is_admin() ? new EE_Admin_Two_Column_Layout() : new EE_Two_Column_Layout();
         }
         $this->_layout_strategy->_construct_finalize($this);
@@ -277,7 +277,7 @@ 
                 $req_data,
                 $this
             );
-            $this->cached_request_data = (array)$req_data;
+            $this->cached_request_data = (array) $req_data;
         }
         return $this->cached_request_data;
     }
@@ -313,7 +313,7 @@ 
         if ($validate) {
             $this->_validate();
             //if it's invalid, we're going to want to re-display so remember what they submitted
-            if (! $this->is_valid()) {
+            if ( ! $this->is_valid()) {
                 $this->store_submitted_form_data_in_session();
             }
         }
@@ -426,11 +426,11 @@ 
     public function populate_defaults($default_data)
     {
         foreach ($this->subsections(false) as $subsection_name => $subsection) {
-            if (isset($default_data[ $subsection_name ])) {
+            if (isset($default_data[$subsection_name])) {
                 if ($subsection instanceof EE_Form_Input_Base) {
-                    $subsection->set_default($default_data[ $subsection_name ]);
+                    $subsection->set_default($default_data[$subsection_name]);
                 } elseif ($subsection instanceof EE_Form_Section_Proper) {
-                    $subsection->populate_defaults($default_data[ $subsection_name ]);
+                    $subsection->populate_defaults($default_data[$subsection_name]);
                 }
             }
         }
@@ -445,7 +445,7 @@ 
      */
     public function subsection_exists($name)
     {
-        return isset($this->_subsections[ $name ]) ? true : false;
+        return isset($this->_subsections[$name]) ? true : false;
     }
 
 
@@ -467,7 +467,7 @@ 
         if ($require_construction_to_be_finalized) {
             $this->ensure_construct_finalized_called();
         }
-        return $this->subsection_exists($name) ? $this->_subsections[ $name ] : null;
+        return $this->subsection_exists($name) ? $this->_subsections[$name] : null;
     }
 
 
@@ -482,7 +482,7 @@ 
         $validatable_subsections = array();
         foreach ($this->subsections() as $name => $obj) {
             if ($obj instanceof EE_Form_Section_Validatable) {
-                $validatable_subsections[ $name ] = $obj;
+                $validatable_subsections[$name] = $obj;
             }
         }
         return $validatable_subsections;
@@ -509,7 +509,7 @@ 
             $name,
             $require_construction_to_be_finalized
         );
-        if (! $subsection instanceof EE_Form_Input_Base) {
+        if ( ! $subsection instanceof EE_Form_Input_Base) {
             throw new EE_Error(
                 sprintf(
                     esc_html__(
@@ -546,7 +546,7 @@ 
             $name,
             $require_construction_to_be_finalized
         );
-        if (! $subsection instanceof EE_Form_Section_Proper) {
+        if ( ! $subsection instanceof EE_Form_Section_Proper) {
             throw new EE_Error(
                 sprintf(
                     esc_html__(
@@ -585,8 +585,8 @@ 
      */
     public function is_valid()
     {
-        if($this->is_valid === null) {
-            if (! $this->has_received_submission()) {
+        if ($this->is_valid === null) {
+            if ( ! $this->has_received_submission()) {
                 throw new EE_Error(
                     sprintf(
                         esc_html__(
@@ -596,14 +596,14 @@ 
                     )
                 );
             }
-            if (! parent::is_valid()) {
+            if ( ! parent::is_valid()) {
                 $this->is_valid = false;
             } else {
                 // ok so no general errors to this entire form section.
                 // so let's check the subsections, but only set errors if that hasn't been done yet
                 $this->is_valid = true;
                 foreach ($this->get_validatable_subsections() as $subsection) {
-                    if (! $subsection->is_valid()) {
+                    if ( ! $subsection->is_valid()) {
                         $this->is_valid = false;
                     }
                 }
@@ -620,7 +620,7 @@ 
      */
     protected function _set_default_name_if_empty()
     {
-        if (! $this->_name) {
+        if ( ! $this->_name) {
             $classname    = get_class($this);
             $default_name = str_replace('EE_', '', $classname);
             $this->_name  = $default_name;
@@ -710,7 +710,7 @@ 
     {
         wp_register_script(
             'ee_form_section_validation',
-            EE_GLOBAL_ASSETS_URL . 'scripts' . DS . 'form_section_validation.js',
+            EE_GLOBAL_ASSETS_URL.'scripts'.DS.'form_section_validation.js',
             array('jquery-validate', 'jquery-ui-datepicker', 'jquery-validate-extra-methods'),
             EVENT_ESPRESSO_VERSION,
             true
@@ -754,13 +754,13 @@ 
         // we only want to localize vars ONCE for the entire form,
         // so if the form section doesn't have a parent, then it must be the top dog
         if ($return_for_subsection || ! $this->parent_section()) {
-            EE_Form_Section_Proper::$_js_localization['form_data'][ $this->html_id() ] = array(
+            EE_Form_Section_Proper::$_js_localization['form_data'][$this->html_id()] = array(
                 'form_section_id'  => $this->html_id(true),
                 'validation_rules' => $this->get_jquery_validation_rules(),
                 'other_data'       => $this->get_other_js_data(),
                 'errors'           => $this->subsection_validation_errors_by_html_name(),
             );
-            EE_Form_Section_Proper::$_scripts_localized                                = true;
+            EE_Form_Section_Proper::$_scripts_localized = true;
         }
     }
 
@@ -795,7 +795,7 @@ 
         $inputs = array();
         foreach ($this->subsections() as $subsection) {
             if ($subsection instanceof EE_Form_Input_Base) {
-                $inputs[ $subsection->html_name() ] = $subsection;
+                $inputs[$subsection->html_name()] = $subsection;
             } elseif ($subsection instanceof EE_Form_Section_Proper) {
                 $inputs += $subsection->inputs_in_subsections();
             }
@@ -818,7 +818,7 @@ 
         $errors = array();
         foreach ($inputs as $form_input) {
             if ($form_input instanceof EE_Form_Input_Base && $form_input->get_validation_errors()) {
-                $errors[ $form_input->html_name() ] = $form_input->get_validation_error_string();
+                $errors[$form_input->html_name()] = $form_input->get_validation_error_string();
             }
         }
         return $errors;
@@ -841,7 +841,7 @@ 
         $email_validation_level = isset(EE_Registry::instance()->CFG->registration->email_validation_level)
             ? EE_Registry::instance()->CFG->registration->email_validation_level
             : 'wp_default';
-        EE_Form_Section_Proper::$_js_localization['email_validation_level']   = $email_validation_level;
+        EE_Form_Section_Proper::$_js_localization['email_validation_level'] = $email_validation_level;
         wp_enqueue_script('ee_form_section_validation');
         wp_localize_script(
             'ee_form_section_validation',
@@ -858,7 +858,7 @@ 
      */
     public function ensure_scripts_localized()
     {
-        if (! EE_Form_Section_Proper::$_scripts_localized) {
+        if ( ! EE_Form_Section_Proper::$_scripts_localized) {
             $this->_enqueue_and_localize_form_js();
         }
     }
@@ -954,8 +954,8 @@ 
         //reset the cache of whether this form is valid or not- we're re-validating it now
         $this->is_valid = null;
         foreach ($this->get_validatable_subsections() as $subsection_name => $subsection) {
-            if (method_exists($this, '_validate_' . $subsection_name)) {
-                call_user_func_array(array($this, '_validate_' . $subsection_name), array($subsection));
+            if (method_exists($this, '_validate_'.$subsection_name)) {
+                call_user_func_array(array($this, '_validate_'.$subsection_name), array($subsection));
             }
             $subsection->_validate();
         }
@@ -973,9 +973,9 @@ 
         $inputs = array();
         foreach ($this->subsections() as $subsection_name => $subsection) {
             if ($subsection instanceof EE_Form_Section_Proper) {
-                $inputs[ $subsection_name ] = $subsection->valid_data();
+                $inputs[$subsection_name] = $subsection->valid_data();
             } elseif ($subsection instanceof EE_Form_Input_Base) {
-                $inputs[ $subsection_name ] = $subsection->normalized_value();
+                $inputs[$subsection_name] = $subsection->normalized_value();
             }
         }
         return $inputs;
@@ -993,7 +993,7 @@ 
         $inputs = array();
         foreach ($this->subsections() as $subsection_name => $subsection) {
             if ($subsection instanceof EE_Form_Input_Base) {
-                $inputs[ $subsection_name ] = $subsection;
+                $inputs[$subsection_name] = $subsection;
             }
         }
         return $inputs;
@@ -1011,7 +1011,7 @@ 
         $form_sections = array();
         foreach ($this->subsections() as $name => $obj) {
             if ($obj instanceof EE_Form_Section_Proper) {
-                $form_sections[ $name ] = $obj;
+                $form_sections[$name] = $obj;
             }
         }
         return $form_sections;
@@ -1118,7 +1118,7 @@ 
         $input_values = array();
         foreach ($this->subsections() as $subsection_name => $subsection) {
             if ($subsection instanceof EE_Form_Input_Base) {
-                $input_values[ $subsection_name ] = $pretty
+                $input_values[$subsection_name] = $pretty
                     ? $subsection->pretty_value()
                     : $subsection->normalized_value();
             } elseif ($subsection instanceof EE_Form_Section_Proper && $include_subform_inputs) {
@@ -1130,7 +1130,7 @@ 
                 if ($flatten) {
                     $input_values = array_merge($input_values, $subform_input_values);
                 } else {
-                    $input_values[ $subsection_name ] = $subform_input_values;
+                    $input_values[$subsection_name] = $subform_input_values;
                 }
             }
         }
@@ -1158,7 +1158,7 @@ 
             if ($subsection instanceof EE_Form_Input_Base) {
                 // is this input part of an array of inputs?
                 if (strpos($subsection->html_name(), '[') !== false) {
-                    $full_input_name  = EEH_Array::convert_array_values_to_keys(
+                    $full_input_name = EEH_Array::convert_array_values_to_keys(
                         explode(
                             '[',
                             str_replace(']', '', $subsection->html_name())
@@ -1167,7 +1167,7 @@ 
                     );
                     $submitted_values = array_replace_recursive($submitted_values, $full_input_name);
                 } else {
-                    $submitted_values[ $subsection->html_name() ] = $subsection->raw_value();
+                    $submitted_values[$subsection->html_name()] = $subsection->raw_value();
                 }
             } elseif ($subsection instanceof EE_Form_Section_Proper && $include_subforms) {
                 $subform_input_values = $subsection->submitted_values($include_subforms);
@@ -1202,7 +1202,7 @@ 
     public function exclude(array $inputs_to_exclude = array())
     {
         foreach ($inputs_to_exclude as $input_to_exclude_name) {
-            unset($this->_subsections[ $input_to_exclude_name ]);
+            unset($this->_subsections[$input_to_exclude_name]);
         }
     }
 
@@ -1244,7 +1244,7 @@ 
     public function add_subsections($new_subsections, $subsection_name_to_target = null, $add_before = true)
     {
         foreach ($new_subsections as $subsection_name => $subsection) {
-            if (! $subsection instanceof EE_Form_Section_Base) {
+            if ( ! $subsection instanceof EE_Form_Section_Base) {
                 EE_Error::add_error(
                     sprintf(
                         esc_html__(
@@ -1256,7 +1256,7 @@ 
                         $this->name()
                     )
                 );
-                unset($new_subsections[ $subsection_name ]);
+                unset($new_subsections[$subsection_name]);
             }
         }
         $this->_subsections = EEH_Array::insert_into_array(
@@ -1348,7 +1348,7 @@ 
     public function html_name_prefix()
     {
         if ($this->parent_section() instanceof EE_Form_Section_Proper) {
-            return $this->parent_section()->html_name_prefix() . '[' . $this->name() . ']';
+            return $this->parent_section()->html_name_prefix().'['.$this->name().']';
         }
         return $this->name();
     }
@@ -1388,7 +1388,7 @@ 
      */
     public function ensure_construct_finalized_called()
     {
-        if (! $this->_construction_finalized) {
+        if ( ! $this->_construction_finalized) {
             $this->_construct_finalize($this->_parent_section, $this->_name);
         }
     }
@@ -1460,7 +1460,7 @@ 
                 $form_section = $validation_error->get_form_section();
                 if ($form_section instanceof EE_Form_Input_Base) {
                    $label = $validation_error->get_form_section()->html_label_text();
-                } elseif($form_section instanceof EE_Form_Section_Validatable) {
+                } elseif ($form_section instanceof EE_Form_Section_Validatable) {
                     $label = $validation_error->get_form_section()->name();
                 } else {
                     $label = esc_html__('Unknown', 'event_espresso');

Indentation +1500 added lines, -1500 removed lines

@@ -14,1505 +14,1505 @@
 class EE_Form_Section_Proper extends EE_Form_Section_Validatable
 {
 
-    const SUBMITTED_FORM_DATA_SSN_KEY = 'submitted_form_data';
-
-    /**
-     * Subsections
-     *
-     * @var EE_Form_Section_Validatable[]
-     */
-    protected $_subsections = array();
-
-    /**
-     * Strategy for laying out the form
-     *
-     * @var EE_Form_Section_Layout_Base
-     */
-    protected $_layout_strategy;
-
-    /**
-     * Whether or not this form has received and validated a form submission yet
-     *
-     * @var boolean
-     */
-    protected $_received_submission = false;
-
-    /**
-     * message displayed to users upon successful form submission
-     *
-     * @var string
-     */
-    protected $_form_submission_success_message = '';
-
-    /**
-     * message displayed to users upon unsuccessful form submission
-     *
-     * @var string
-     */
-    protected $_form_submission_error_message = '';
-
-    /**
-     * @var array like $_REQUEST
-     */
-    protected $cached_request_data;
-
-    /**
-     * Stores whether this form (and its sub-sections) were found to be valid or not.
-     * Starts off as null, but once the form is validated, it set to either true or false
-     * @var boolean|null
-     */
-    protected $is_valid;
-
-    /**
-     * Stores all the data that will localized for form validation
-     *
-     * @var array
-     */
-    static protected $_js_localization = array();
-
-    /**
-     * whether or not the form's localized validation JS vars have been set
-     *
-     * @type boolean
-     */
-    static protected $_scripts_localized = false;
-
-
-    /**
-     * when constructing a proper form section, calls _construct_finalize on children
-     * so that they know who their parent is, and what name they've been given.
-     *
-     * @param array[] $options_array   {
-     * @type          $subsections     EE_Form_Section_Validatable[] where keys are the section's name
-     * @type          $include         string[] numerically-indexed where values are section names to be included,
-     *                                 and in that order. This is handy if you want
-     *                                 the subsections to be ordered differently than the default, and if you override
-     *                                 which fields are shown
-     * @type          $exclude         string[] values are subsections to be excluded. This is handy if you want
-     *                                 to remove certain default subsections (note: if you specify BOTH 'include' AND
-     *                                 'exclude', the inclusions will be applied first, and the exclusions will exclude
-     *                                 items from that list of inclusions)
-     * @type          $layout_strategy EE_Form_Section_Layout_Base strategy for laying out the form
-     *                                 } @see EE_Form_Section_Validatable::__construct()
-     * @throws EE_Error
-     */
-    public function __construct($options_array = array())
-    {
-        $options_array = (array) apply_filters(
-            'FHEE__EE_Form_Section_Proper___construct__options_array',
-            $options_array,
-            $this
-        );
-        //call parent first, as it may be setting the name
-        parent::__construct($options_array);
-        //if they've included subsections in the constructor, add them now
-        if (isset($options_array['include'])) {
-            //we are going to make sure we ONLY have those subsections to include
-            //AND we are going to make sure they're in that specified order
-            $reordered_subsections = array();
-            foreach ($options_array['include'] as $input_name) {
-                if (isset($this->_subsections[ $input_name ])) {
-                    $reordered_subsections[ $input_name ] = $this->_subsections[ $input_name ];
-                }
-            }
-            $this->_subsections = $reordered_subsections;
-        }
-        if (isset($options_array['exclude'])) {
-            $exclude            = $options_array['exclude'];
-            $this->_subsections = array_diff_key($this->_subsections, array_flip($exclude));
-        }
-        if (isset($options_array['layout_strategy'])) {
-            $this->_layout_strategy = $options_array['layout_strategy'];
-        }
-        if (! $this->_layout_strategy) {
-            $this->_layout_strategy = is_admin() ? new EE_Admin_Two_Column_Layout() : new EE_Two_Column_Layout();
-        }
-        $this->_layout_strategy->_construct_finalize($this);
-        //ok so we are definitely going to want the forms JS,
-        //so enqueue it or remember to enqueue it during wp_enqueue_scripts
-        if (did_action('wp_enqueue_scripts') || did_action('admin_enqueue_scripts')) {
-            //ok so they've constructed this object after when they should have.
-            //just enqueue the generic form scripts and initialize the form immediately in the JS
-            EE_Form_Section_Proper::wp_enqueue_scripts(true);
-        } else {
-            add_action('wp_enqueue_scripts', array('EE_Form_Section_Proper', 'wp_enqueue_scripts'));
-            add_action('admin_enqueue_scripts', array('EE_Form_Section_Proper', 'wp_enqueue_scripts'));
-        }
-        add_action('wp_footer', array($this, 'ensure_scripts_localized'), 1);
-        /**
-         * Gives other plugins a chance to hook in before construct finalize is called.
-         * The form probably doesn't yet have a parent form section.
-         * Since 4.9.32, when this action was introduced, this is the best place to add a subsection onto a form,
-         * assuming you don't care what the form section's name, HTML ID, or HTML name etc are.
-         * Also see AHEE__EE_Form_Section_Proper___construct_finalize__end
-         *
-         * @since 4.9.32
-         * @param EE_Form_Section_Proper $this          before __construct is done, but all of its logic,
-         *                                              except maybe calling _construct_finalize has been done
-         * @param array                  $options_array options passed into the constructor
-         */
-        do_action(
-            'AHEE__EE_Form_Input_Base___construct__before_construct_finalize_called',
-            $this,
-            $options_array
-        );
-        if (isset($options_array['name'])) {
-            $this->_construct_finalize(null, $options_array['name']);
-        }
-    }
-
-
-    /**
-     * Finishes construction given the parent form section and this form section's name
-     *
-     * @param EE_Form_Section_Proper $parent_form_section
-     * @param string                 $name
-     * @throws EE_Error
-     */
-    public function _construct_finalize($parent_form_section, $name)
-    {
-        parent::_construct_finalize($parent_form_section, $name);
-        $this->_set_default_name_if_empty();
-        $this->_set_default_html_id_if_empty();
-        foreach ($this->_subsections as $subsection_name => $subsection) {
-            if ($subsection instanceof EE_Form_Section_Base) {
-                $subsection->_construct_finalize($this, $subsection_name);
-            } else {
-                throw new EE_Error(
-                    sprintf(
-                        esc_html__(
-                            'Subsection "%s" is not an instanceof EE_Form_Section_Base on form "%s". It is a "%s"',
-                            'event_espresso'
-                        ),
-                        $subsection_name,
-                        get_class($this),
-                        $subsection ? get_class($subsection) : esc_html__('NULL', 'event_espresso')
-                    )
-                );
-            }
-        }
-        /**
-         * Action performed just after form has been given a name (and HTML ID etc) and is fully constructed.
-         * If you have code that should modify the form and needs it and its subsections to have a name, HTML ID
-         * (or other attributes derived from the name like the HTML label id, etc), this is where it should be done.
-         * This might only happen just before displaying the form, or just before it receives form submission data.
-         * If you need to modify the form or its subsections before _construct_finalize is called on it (and we've
-         * ensured it has a name, HTML IDs, etc
-         *
-         * @param EE_Form_Section_Proper      $this
-         * @param EE_Form_Section_Proper|null $parent_form_section
-         * @param string                      $name
-         */
-        do_action(
-            'AHEE__EE_Form_Section_Proper___construct_finalize__end',
-            $this,
-            $parent_form_section,
-            $name
-        );
-    }
-
-
-    /**
-     * Gets the layout strategy for this form section
-     *
-     * @return EE_Form_Section_Layout_Base
-     */
-    public function get_layout_strategy()
-    {
-        return $this->_layout_strategy;
-    }
-
-
-    /**
-     * Gets the HTML for a single input for this form section according
-     * to the layout strategy
-     *
-     * @param EE_Form_Input_Base $input
-     * @return string
-     */
-    public function get_html_for_input($input)
-    {
-        return $this->_layout_strategy->layout_input($input);
-    }
-
-
-    /**
-     * was_submitted - checks if form inputs are present in request data
-     * Basically an alias for form_data_present_in() (which is used by both
-     * proper form sections and form inputs)
-     *
-     * @param null $form_data
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function was_submitted($form_data = null)
-    {
-        return $this->form_data_present_in($form_data);
-    }
-
-    /**
-     * Gets the cached request data; but if there is none, or $req_data was set with
-     * something different, refresh the cache, and then return it
-     * @param null $req_data
-     * @return array
-     */
-    protected function getCachedRequest($req_data = null)
-    {
-        if ($this->cached_request_data === null
-            || (
-                $req_data !== null &&
-                $req_data !== $this->cached_request_data
-            )
-        ) {
-            $req_data = apply_filters(
-                'FHEE__EE_Form_Section_Proper__receive_form_submission__req_data',
-                $req_data,
-                $this
-            );
-            if ($req_data === null) {
-                $req_data = array_merge($_GET, $_POST);
-            }
-            $req_data = apply_filters(
-                'FHEE__EE_Form_Section_Proper__receive_form_submission__request_data',
-                $req_data,
-                $this
-            );
-            $this->cached_request_data = (array)$req_data;
-        }
-        return $this->cached_request_data;
-    }
-
-
-    /**
-     * After the form section is initially created, call this to sanitize the data in the submission
-     * which relates to this form section, validate it, and set it as properties on the form.
-     *
-     * @param array|null $req_data should usually be $_POST (the default).
-     *                             However, you CAN supply a different array.
-     *                             Consider using set_defaults() instead however.
-     *                             (If you rendered the form in the page using echo $form_x->get_html()
-     *                             the inputs will have the correct name in the request data for this function
-     *                             to find them and populate the form with them.
-     *                             If you have a flat form (with only input subsections),
-     *                             you can supply a flat array where keys
-     *                             are the form input names and values are their values)
-     * @param boolean    $validate whether or not to perform validation on this data. Default is,
-     *                             of course, to validate that data, and set errors on the invalid values.
-     *                             But if the data has already been validated
-     *                             (eg you validated the data then stored it in the DB)
-     *                             you may want to skip this step.
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    public function receive_form_submission($req_data = null, $validate = true)
-    {
-        $req_data = $this->getCachedRequest($req_data);
-        $this->_normalize($req_data);
-        if ($validate) {
-            $this->_validate();
-            //if it's invalid, we're going to want to re-display so remember what they submitted
-            if (! $this->is_valid()) {
-                $this->store_submitted_form_data_in_session();
-            }
-        }
-        if ($this->submission_error_message() === '' && ! $this->is_valid()) {
-            $this->set_submission_error_message();
-        }
-        do_action(
-            'AHEE__EE_Form_Section_Proper__receive_form_submission__end',
-            $req_data,
-            $this,
-            $validate
-        );
-    }
-
-
-    /**
-     * caches the originally submitted input values in the session
-     * so that they can be used to repopulate the form if it failed validation
-     *
-     * @return boolean whether or not the data was successfully stored in the session
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    protected function store_submitted_form_data_in_session()
-    {
-        return EE_Registry::instance()->SSN->set_session_data(
-            array(
-                EE_Form_Section_Proper::SUBMITTED_FORM_DATA_SSN_KEY => $this->submitted_values(true),
-            )
-        );
-    }
-
-
-    /**
-     * retrieves the originally submitted input values in the session
-     * so that they can be used to repopulate the form if it failed validation
-     *
-     * @return array
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    protected function get_submitted_form_data_from_session()
-    {
-        $session = EE_Registry::instance()->SSN;
-        if ($session instanceof EE_Session) {
-            return $session->get_session_data(
-                EE_Form_Section_Proper::SUBMITTED_FORM_DATA_SSN_KEY
-            );
-        }
-        return array();
-    }
-
-
-    /**
-     * flushed the originally submitted input values from the session
-     *
-     * @return boolean whether or not the data was successfully removed from the session
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    protected function flush_submitted_form_data_from_session()
-    {
-        return EE_Registry::instance()->SSN->reset_data(
-            array(EE_Form_Section_Proper::SUBMITTED_FORM_DATA_SSN_KEY)
-        );
-    }
-
-
-    /**
-     * Populates this form and its subsections with data from the session.
-     * (Wrapper for EE_Form_Section_Proper::receive_form_submission, so it shows
-     * validation errors when displaying too)
-     * Returns true if the form was populated from the session, false otherwise
-     *
-     * @return boolean
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    public function populate_from_session()
-    {
-        $form_data_in_session = $this->get_submitted_form_data_from_session();
-        if (empty($form_data_in_session)) {
-            return false;
-        }
-        $this->receive_form_submission($form_data_in_session);
-        $this->flush_submitted_form_data_from_session();
-        if ($this->form_data_present_in($form_data_in_session)) {
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * Populates the default data for the form, given an array where keys are
-     * the input names, and values are their values (preferably normalized to be their
-     * proper PHP types, not all strings... although that should be ok too).
-     * Proper subsections are sub-arrays, the key being the subsection's name, and
-     * the value being an array formatted in teh same way
-     *
-     * @param array $default_data
-     * @throws EE_Error
-     */
-    public function populate_defaults($default_data)
-    {
-        foreach ($this->subsections(false) as $subsection_name => $subsection) {
-            if (isset($default_data[ $subsection_name ])) {
-                if ($subsection instanceof EE_Form_Input_Base) {
-                    $subsection->set_default($default_data[ $subsection_name ]);
-                } elseif ($subsection instanceof EE_Form_Section_Proper) {
-                    $subsection->populate_defaults($default_data[ $subsection_name ]);
-                }
-            }
-        }
-    }
-
-
-    /**
-     * returns true if subsection exists
-     *
-     * @param string $name
-     * @return boolean
-     */
-    public function subsection_exists($name)
-    {
-        return isset($this->_subsections[ $name ]) ? true : false;
-    }
-
-
-    /**
-     * Gets the subsection specified by its name
-     *
-     * @param string  $name
-     * @param boolean $require_construction_to_be_finalized most client code should leave this as TRUE
-     *                                                      so that the inputs will be properly configured.
-     *                                                      However, some client code may be ok
-     *                                                      with construction finalize being called later
-     *                                                      (realizing that the subsections' html names
-     *                                                      might not be set yet, etc.)
-     * @return EE_Form_Section_Base
-     * @throws EE_Error
-     */
-    public function get_subsection($name, $require_construction_to_be_finalized = true)
-    {
-        if ($require_construction_to_be_finalized) {
-            $this->ensure_construct_finalized_called();
-        }
-        return $this->subsection_exists($name) ? $this->_subsections[ $name ] : null;
-    }
-
-
-    /**
-     * Gets all the validatable subsections of this form section
-     *
-     * @return EE_Form_Section_Validatable[]
-     * @throws EE_Error
-     */
-    public function get_validatable_subsections()
-    {
-        $validatable_subsections = array();
-        foreach ($this->subsections() as $name => $obj) {
-            if ($obj instanceof EE_Form_Section_Validatable) {
-                $validatable_subsections[ $name ] = $obj;
-            }
-        }
-        return $validatable_subsections;
-    }
-
-
-    /**
-     * Gets an input by the given name. If not found, or if its not an EE_FOrm_Input_Base child,
-     * throw an EE_Error.
-     *
-     * @param string  $name
-     * @param boolean $require_construction_to_be_finalized most client code should
-     *                                                      leave this as TRUE so that the inputs will be properly
-     *                                                      configured. However, some client code may be ok with
-     *                                                      construction finalize being called later
-     *                                                      (realizing that the subsections' html names might not be
-     *                                                      set yet, etc.)
-     * @return EE_Form_Input_Base
-     * @throws EE_Error
-     */
-    public function get_input($name, $require_construction_to_be_finalized = true)
-    {
-        $subsection = $this->get_subsection(
-            $name,
-            $require_construction_to_be_finalized
-        );
-        if (! $subsection instanceof EE_Form_Input_Base) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        "Subsection '%s' is not an instanceof EE_Form_Input_Base on form '%s'. It is a '%s'",
-                        'event_espresso'
-                    ),
-                    $name,
-                    get_class($this),
-                    $subsection ? get_class($subsection) : esc_html__('NULL', 'event_espresso')
-                )
-            );
-        }
-        return $subsection;
-    }
-
-
-    /**
-     * Like get_input(), gets the proper subsection of the form given the name,
-     * otherwise throws an EE_Error
-     *
-     * @param string  $name
-     * @param boolean $require_construction_to_be_finalized most client code should
-     *                                                      leave this as TRUE so that the inputs will be properly
-     *                                                      configured. However, some client code may be ok with
-     *                                                      construction finalize being called later
-     *                                                      (realizing that the subsections' html names might not be
-     *                                                      set yet, etc.)
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     */
-    public function get_proper_subsection($name, $require_construction_to_be_finalized = true)
-    {
-        $subsection = $this->get_subsection(
-            $name,
-            $require_construction_to_be_finalized
-        );
-        if (! $subsection instanceof EE_Form_Section_Proper) {
-            throw new EE_Error(
-                sprintf(
-                    esc_html__(
-                        "Subsection '%'s is not an instanceof EE_Form_Section_Proper on form '%s'",
-                        'event_espresso'
-                    ),
-                    $name,
-                    get_class($this)
-                )
-            );
-        }
-        return $subsection;
-    }
-
-
-    /**
-     * Gets the value of the specified input. Should be called after receive_form_submission()
-     * or populate_defaults() on the form, where the normalized value on the input is set.
-     *
-     * @param string $name
-     * @return mixed depending on the input's type and its normalization strategy
-     * @throws EE_Error
-     */
-    public function get_input_value($name)
-    {
-        $input = $this->get_input($name);
-        return $input->normalized_value();
-    }
-
-
-    /**
-     * Checks if this form section itself is valid, and then checks its subsections
-     *
-     * @throws EE_Error
-     * @return boolean
-     */
-    public function is_valid()
-    {
-        if($this->is_valid === null) {
-            if (! $this->has_received_submission()) {
-                throw new EE_Error(
-                    sprintf(
-                        esc_html__(
-                            'You cannot check if a form is valid before receiving the form submission using receive_form_submission',
-                            'event_espresso'
-                        )
-                    )
-                );
-            }
-            if (! parent::is_valid()) {
-                $this->is_valid = false;
-            } else {
-                // ok so no general errors to this entire form section.
-                // so let's check the subsections, but only set errors if that hasn't been done yet
-                $this->is_valid = true;
-                foreach ($this->get_validatable_subsections() as $subsection) {
-                    if (! $subsection->is_valid()) {
-                        $this->is_valid = false;
-                    }
-                }
-            }
-        }
-        return $this->is_valid;
-    }
-
-
-    /**
-     * gets the default name of this form section if none is specified
-     *
-     * @return void
-     */
-    protected function _set_default_name_if_empty()
-    {
-        if (! $this->_name) {
-            $classname    = get_class($this);
-            $default_name = str_replace('EE_', '', $classname);
-            $this->_name  = $default_name;
-        }
-    }
-
-
-    /**
-     * Returns the HTML for the form, except for the form opening and closing tags
-     * (as the form section doesn't know where you necessarily want to send the information to),
-     * and except for a submit button. Enqueues JS and CSS; if called early enough we will
-     * try to enqueue them in the header, otherwise they'll be enqueued in the footer.
-     * Not doing_it_wrong because theoretically this CAN be used properly,
-     * provided its used during "wp_enqueue_scripts", or it doesn't need to enqueue
-     * any CSS.
-     *
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     */
-    public function get_html_and_js()
-    {
-        $this->enqueue_js();
-        return $this->get_html();
-    }
-
-
-    /**
-     * returns HTML for displaying this form section. recursively calls display_section() on all subsections
-     *
-     * @param bool $display_previously_submitted_data
-     * @return string
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     * @throws EE_Error
-     * @throws EE_Error
-     * @throws EE_Error
-     */
-    public function get_html($display_previously_submitted_data = true)
-    {
-        $this->ensure_construct_finalized_called();
-        if ($display_previously_submitted_data) {
-            $this->populate_from_session();
-        }
-        return $this->_form_html_filter
-            ? $this->_form_html_filter->filterHtml($this->_layout_strategy->layout_form(), $this)
-            : $this->_layout_strategy->layout_form();
-    }
-
-
-    /**
-     * enqueues JS and CSS for the form.
-     * It is preferred to call this before wp_enqueue_scripts so the
-     * scripts and styles can be put in the header, but if called later
-     * they will be put in the footer (which is OK for JS, but in HTML4 CSS should
-     * only be in the header; but in HTML5 its ok in the body.
-     * See http://stackoverflow.com/questions/4957446/load-external-css-file-in-body-tag.
-     * So if your form enqueues CSS, it's preferred to call this before wp_enqueue_scripts.)
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function enqueue_js()
-    {
-        $this->_enqueue_and_localize_form_js();
-        foreach ($this->subsections() as $subsection) {
-            $subsection->enqueue_js();
-        }
-    }
-
-
-    /**
-     * adds a filter so that jquery validate gets enqueued in EE_System::wp_enqueue_scripts().
-     * This must be done BEFORE wp_enqueue_scripts() gets called, which is on
-     * the wp_enqueue_scripts hook.
-     * However, registering the form js and localizing it can happen when we
-     * actually output the form (which is preferred, seeing how teh form's fields
-     * could change until it's actually outputted)
-     *
-     * @param boolean $init_form_validation_automatically whether or not we want the form validation
-     *                                                    to be triggered automatically or not
-     * @return void
-     */
-    public static function wp_enqueue_scripts($init_form_validation_automatically = true)
-    {
-        wp_register_script(
-            'ee_form_section_validation',
-            EE_GLOBAL_ASSETS_URL . 'scripts' . DS . 'form_section_validation.js',
-            array('jquery-validate', 'jquery-ui-datepicker', 'jquery-validate-extra-methods'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        wp_localize_script(
-            'ee_form_section_validation',
-            'ee_form_section_validation_init',
-            array('init' => $init_form_validation_automatically ? '1' : '0')
-        );
-    }
-
-
-    /**
-     * gets the variables used by form_section_validation.js.
-     * This needs to be called AFTER we've called $this->_enqueue_jquery_validate_script,
-     * but before the wordpress hook wp_loaded
-     *
-     * @throws EE_Error
-     */
-    public function _enqueue_and_localize_form_js()
-    {
-        $this->ensure_construct_finalized_called();
-        //actually, we don't want to localize just yet. There may be other forms on the page.
-        //so we need to add our form section data to a static variable accessible by all form sections
-        //and localize it just before the footer
-        $this->localize_validation_rules();
-        add_action('wp_footer', array('EE_Form_Section_Proper', 'localize_script_for_all_forms'), 2);
-        add_action('admin_footer', array('EE_Form_Section_Proper', 'localize_script_for_all_forms'));
-    }
-
-
-    /**
-     * add our form section data to a static variable accessible by all form sections
-     *
-     * @param bool $return_for_subsection
-     * @return void
-     * @throws EE_Error
-     */
-    public function localize_validation_rules($return_for_subsection = false)
-    {
-        // we only want to localize vars ONCE for the entire form,
-        // so if the form section doesn't have a parent, then it must be the top dog
-        if ($return_for_subsection || ! $this->parent_section()) {
-            EE_Form_Section_Proper::$_js_localization['form_data'][ $this->html_id() ] = array(
-                'form_section_id'  => $this->html_id(true),
-                'validation_rules' => $this->get_jquery_validation_rules(),
-                'other_data'       => $this->get_other_js_data(),
-                'errors'           => $this->subsection_validation_errors_by_html_name(),
-            );
-            EE_Form_Section_Proper::$_scripts_localized                                = true;
-        }
-    }
-
-
-    /**
-     * Gets an array of extra data that will be useful for client-side javascript.
-     * This is primarily data added by inputs and forms in addition to any
-     * scripts they might enqueue
-     *
-     * @param array $form_other_js_data
-     * @return array
-     * @throws EE_Error
-     */
-    public function get_other_js_data($form_other_js_data = array())
-    {
-        foreach ($this->subsections() as $subsection) {
-            $form_other_js_data = $subsection->get_other_js_data($form_other_js_data);
-        }
-        return $form_other_js_data;
-    }
-
-
-    /**
-     * Gets a flat array of inputs for this form section and its subsections.
-     * Keys are their form names, and values are the inputs themselves
-     *
-     * @return EE_Form_Input_Base
-     * @throws EE_Error
-     */
-    public function inputs_in_subsections()
-    {
-        $inputs = array();
-        foreach ($this->subsections() as $subsection) {
-            if ($subsection instanceof EE_Form_Input_Base) {
-                $inputs[ $subsection->html_name() ] = $subsection;
-            } elseif ($subsection instanceof EE_Form_Section_Proper) {
-                $inputs += $subsection->inputs_in_subsections();
-            }
-        }
-        return $inputs;
-    }
-
-
-    /**
-     * Gets a flat array of all the validation errors.
-     * Keys are html names (because those should be unique)
-     * and values are a string of all their validation errors
-     *
-     * @return string[]
-     * @throws EE_Error
-     */
-    public function subsection_validation_errors_by_html_name()
-    {
-        $inputs = $this->inputs();
-        $errors = array();
-        foreach ($inputs as $form_input) {
-            if ($form_input instanceof EE_Form_Input_Base && $form_input->get_validation_errors()) {
-                $errors[ $form_input->html_name() ] = $form_input->get_validation_error_string();
-            }
-        }
-        return $errors;
-    }
-
-
-    /**
-     * passes all the form data required by the JS to the JS, and enqueues the few required JS files.
-     * Should be setup by each form during the _enqueues_and_localize_form_js
-     *
-     * @throws InvalidArgumentException
-     * @throws InvalidInterfaceException
-     * @throws InvalidDataTypeException
-     */
-    public static function localize_script_for_all_forms()
-    {
-        //allow inputs and stuff to hook in their JS and stuff here
-        do_action('AHEE__EE_Form_Section_Proper__localize_script_for_all_forms__begin');
-        EE_Form_Section_Proper::$_js_localization['localized_error_messages'] = EE_Form_Section_Proper::_get_localized_error_messages();
-        $email_validation_level = isset(EE_Registry::instance()->CFG->registration->email_validation_level)
-            ? EE_Registry::instance()->CFG->registration->email_validation_level
-            : 'wp_default';
-        EE_Form_Section_Proper::$_js_localization['email_validation_level']   = $email_validation_level;
-        wp_enqueue_script('ee_form_section_validation');
-        wp_localize_script(
-            'ee_form_section_validation',
-            'ee_form_section_vars',
-            EE_Form_Section_Proper::$_js_localization
-        );
-    }
-
-
-    /**
-     * ensure_scripts_localized
-     *
-     * @throws EE_Error
-     */
-    public function ensure_scripts_localized()
-    {
-        if (! EE_Form_Section_Proper::$_scripts_localized) {
-            $this->_enqueue_and_localize_form_js();
-        }
-    }
-
-
-    /**
-     * Gets the hard-coded validation error messages to be used in the JS. The convention
-     * is that the key here should be the same as the custom validation rule put in the JS file
-     *
-     * @return array keys are custom validation rules, and values are internationalized strings
-     */
-    private static function _get_localized_error_messages()
-    {
-        return array(
-            'validUrl' => esc_html__('This is not a valid absolute URL. Eg, http://domain.com/monkey.jpg', 'event_espresso'),
-            'regex'    => esc_html__('Please check your input', 'event_espresso'),
-        );
-    }
-
-
-    /**
-     * @return array
-     */
-    public static function js_localization()
-    {
-        return self::$_js_localization;
-    }
-
-
-    /**
-     * @return void
-     */
-    public static function reset_js_localization()
-    {
-        self::$_js_localization = array();
-    }
-
-
-    /**
-     * Gets the JS to put inside the jquery validation rules for subsection of this form section.
-     * See parent function for more...
-     *
-     * @return array
-     * @throws EE_Error
-     */
-    public function get_jquery_validation_rules()
-    {
-        $jquery_validation_rules = array();
-        foreach ($this->get_validatable_subsections() as $subsection) {
-            $jquery_validation_rules = array_merge(
-                $jquery_validation_rules,
-                $subsection->get_jquery_validation_rules()
-            );
-        }
-        return $jquery_validation_rules;
-    }
-
-
-    /**
-     * Sanitizes all the data and sets the sanitized value of each field
-     *
-     * @param array $req_data like $_POST
-     * @return void
-     * @throws EE_Error
-     */
-    protected function _normalize($req_data)
-    {
-        $this->_received_submission = true;
-        $this->_validation_errors   = array();
-        foreach ($this->get_validatable_subsections() as $subsection) {
-            try {
-                $subsection->_normalize($req_data);
-            } catch (EE_Validation_Error $e) {
-                $subsection->add_validation_error($e);
-            }
-        }
-    }
-
-
-    /**
-     * Performs validation on this form section and its subsections.
-     * For each subsection,
-     * calls _validate_{subsection_name} on THIS form (if the function exists)
-     * and passes it the subsection, then calls _validate on that subsection.
-     * If you need to perform validation on the form as a whole (considering multiple)
-     * you would be best to override this _validate method,
-     * calling parent::_validate() first.
-     *
-     * @throws EE_Error
-     */
-    protected function _validate()
-    {
-        //reset the cache of whether this form is valid or not- we're re-validating it now
-        $this->is_valid = null;
-        foreach ($this->get_validatable_subsections() as $subsection_name => $subsection) {
-            if (method_exists($this, '_validate_' . $subsection_name)) {
-                call_user_func_array(array($this, '_validate_' . $subsection_name), array($subsection));
-            }
-            $subsection->_validate();
-        }
-    }
-
-
-    /**
-     * Gets all the validated inputs for the form section
-     *
-     * @return array
-     * @throws EE_Error
-     */
-    public function valid_data()
-    {
-        $inputs = array();
-        foreach ($this->subsections() as $subsection_name => $subsection) {
-            if ($subsection instanceof EE_Form_Section_Proper) {
-                $inputs[ $subsection_name ] = $subsection->valid_data();
-            } elseif ($subsection instanceof EE_Form_Input_Base) {
-                $inputs[ $subsection_name ] = $subsection->normalized_value();
-            }
-        }
-        return $inputs;
-    }
-
-
-    /**
-     * Gets all the inputs on this form section
-     *
-     * @return EE_Form_Input_Base[]
-     * @throws EE_Error
-     */
-    public function inputs()
-    {
-        $inputs = array();
-        foreach ($this->subsections() as $subsection_name => $subsection) {
-            if ($subsection instanceof EE_Form_Input_Base) {
-                $inputs[ $subsection_name ] = $subsection;
-            }
-        }
-        return $inputs;
-    }
-
-
-    /**
-     * Gets all the subsections which are a proper form
-     *
-     * @return EE_Form_Section_Proper[]
-     * @throws EE_Error
-     */
-    public function subforms()
-    {
-        $form_sections = array();
-        foreach ($this->subsections() as $name => $obj) {
-            if ($obj instanceof EE_Form_Section_Proper) {
-                $form_sections[ $name ] = $obj;
-            }
-        }
-        return $form_sections;
-    }
-
-
-    /**
-     * Gets all the subsections (inputs, proper subsections, or html-only sections).
-     * Consider using inputs() or subforms()
-     * if you only want form inputs or proper form sections.
-     *
-     * @param boolean $require_construction_to_be_finalized most client code should
-     *                                                      leave this as TRUE so that the inputs will be properly
-     *                                                      configured. However, some client code may be ok with
-     *                                                      construction finalize being called later
-     *                                                      (realizing that the subsections' html names might not be
-     *                                                      set yet, etc.)
-     * @return EE_Form_Section_Proper[]
-     * @throws EE_Error
-     */
-    public function subsections($require_construction_to_be_finalized = true)
-    {
-        if ($require_construction_to_be_finalized) {
-            $this->ensure_construct_finalized_called();
-        }
-        return $this->_subsections;
-    }
-
-
-    /**
-     * Returns whether this form has any subforms or inputs
-     * @return bool
-     */
-    public function hasSubsections()
-    {
-        return ! empty($this->_subsections);
-    }
-
-
-    /**
-     * Returns a simple array where keys are input names, and values are their normalized
-     * values. (Similar to calling get_input_value on inputs)
-     *
-     * @param boolean $include_subform_inputs Whether to include inputs from subforms,
-     *                                        or just this forms' direct children inputs
-     * @param boolean $flatten                Whether to force the results into 1-dimensional array,
-     *                                        or allow multidimensional array
-     * @return array if $flatten is TRUE it will always be a 1-dimensional array
-     *                                        with array keys being input names
-     *                                        (regardless of whether they are from a subsection or not),
-     *                                        and if $flatten is FALSE it can be a multidimensional array
-     *                                        where keys are always subsection names and values are either
-     *                                        the input's normalized value, or an array like the top-level array
-     * @throws EE_Error
-     */
-    public function input_values($include_subform_inputs = false, $flatten = false)
-    {
-        return $this->_input_values(false, $include_subform_inputs, $flatten);
-    }
-
-
-    /**
-     * Similar to EE_Form_Section_Proper::input_values(), except this returns the 'display_value'
-     * of each input. On some inputs (especially radio boxes or checkboxes), the value stored
-     * is not necessarily the value we want to display to users. This creates an array
-     * where keys are the input names, and values are their display values
-     *
-     * @param boolean $include_subform_inputs Whether to include inputs from subforms,
-     *                                        or just this forms' direct children inputs
-     * @param boolean $flatten                Whether to force the results into 1-dimensional array,
-     *                                        or allow multidimensional array
-     * @return array if $flatten is TRUE it will always be a 1-dimensional array
-     *                                        with array keys being input names
-     *                                        (regardless of whether they are from a subsection or not),
-     *                                        and if $flatten is FALSE it can be a multidimensional array
-     *                                        where keys are always subsection names and values are either
-     *                                        the input's normalized value, or an array like the top-level array
-     * @throws EE_Error
-     */
-    public function input_pretty_values($include_subform_inputs = false, $flatten = false)
-    {
-        return $this->_input_values(true, $include_subform_inputs, $flatten);
-    }
-
-
-    /**
-     * Gets the input values from the form
-     *
-     * @param boolean $pretty                 Whether to retrieve the pretty value,
-     *                                        or just the normalized value
-     * @param boolean $include_subform_inputs Whether to include inputs from subforms,
-     *                                        or just this forms' direct children inputs
-     * @param boolean $flatten                Whether to force the results into 1-dimensional array,
-     *                                        or allow multidimensional array
-     * @return array if $flatten is TRUE it will always be a 1-dimensional array with array keys being
-     *                                        input names (regardless of whether they are from a subsection or not),
-     *                                        and if $flatten is FALSE it can be a multidimensional array
-     *                                        where keys are always subsection names and values are either
-     *                                        the input's normalized value, or an array like the top-level array
-     * @throws EE_Error
-     */
-    public function _input_values($pretty = false, $include_subform_inputs = false, $flatten = false)
-    {
-        $input_values = array();
-        foreach ($this->subsections() as $subsection_name => $subsection) {
-            if ($subsection instanceof EE_Form_Input_Base) {
-                $input_values[ $subsection_name ] = $pretty
-                    ? $subsection->pretty_value()
-                    : $subsection->normalized_value();
-            } elseif ($subsection instanceof EE_Form_Section_Proper && $include_subform_inputs) {
-                $subform_input_values = $subsection->_input_values(
-                    $pretty,
-                    $include_subform_inputs,
-                    $flatten
-                );
-                if ($flatten) {
-                    $input_values = array_merge($input_values, $subform_input_values);
-                } else {
-                    $input_values[ $subsection_name ] = $subform_input_values;
-                }
-            }
-        }
-        return $input_values;
-    }
-
-
-    /**
-     * Gets the originally submitted input values from the form
-     *
-     * @param boolean $include_subforms  Whether to include inputs from subforms,
-     *                                   or just this forms' direct children inputs
-     * @return array                     if $flatten is TRUE it will always be a 1-dimensional array
-     *                                   with array keys being input names
-     *                                   (regardless of whether they are from a subsection or not),
-     *                                   and if $flatten is FALSE it can be a multidimensional array
-     *                                   where keys are always subsection names and values are either
-     *                                   the input's normalized value, or an array like the top-level array
-     * @throws EE_Error
-     */
-    public function submitted_values($include_subforms = false)
-    {
-        $submitted_values = array();
-        foreach ($this->subsections() as $subsection) {
-            if ($subsection instanceof EE_Form_Input_Base) {
-                // is this input part of an array of inputs?
-                if (strpos($subsection->html_name(), '[') !== false) {
-                    $full_input_name  = EEH_Array::convert_array_values_to_keys(
-                        explode(
-                            '[',
-                            str_replace(']', '', $subsection->html_name())
-                        ),
-                        $subsection->raw_value()
-                    );
-                    $submitted_values = array_replace_recursive($submitted_values, $full_input_name);
-                } else {
-                    $submitted_values[ $subsection->html_name() ] = $subsection->raw_value();
-                }
-            } elseif ($subsection instanceof EE_Form_Section_Proper && $include_subforms) {
-                $subform_input_values = $subsection->submitted_values($include_subforms);
-                $submitted_values     = array_replace_recursive($submitted_values, $subform_input_values);
-            }
-        }
-        return $submitted_values;
-    }
-
-
-    /**
-     * Indicates whether or not this form has received a submission yet
-     * (ie, had receive_form_submission called on it yet)
-     *
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function has_received_submission()
-    {
-        $this->ensure_construct_finalized_called();
-        return $this->_received_submission;
-    }
-
-
-    /**
-     * Equivalent to passing 'exclude' in the constructor's options array.
-     * Removes the listed inputs from the form
-     *
-     * @param array $inputs_to_exclude values are the input names
-     * @return void
-     */
-    public function exclude(array $inputs_to_exclude = array())
-    {
-        foreach ($inputs_to_exclude as $input_to_exclude_name) {
-            unset($this->_subsections[ $input_to_exclude_name ]);
-        }
-    }
-
-
-    /**
-     * @param array $inputs_to_hide
-     * @throws EE_Error
-     */
-    public function hide(array $inputs_to_hide = array())
-    {
-        foreach ($inputs_to_hide as $input_to_hide) {
-            $input = $this->get_input($input_to_hide);
-            $input->set_display_strategy(new EE_Hidden_Display_Strategy());
-        }
-    }
-
-
-    /**
-     * add_subsections
-     * Adds the listed subsections to the form section.
-     * If $subsection_name_to_target is provided,
-     * then new subsections are added before or after that subsection,
-     * otherwise to the start or end of the entire subsections array.
-     *
-     * @param EE_Form_Section_Base[] $new_subsections           array of new form subsections
-     *                                                          where keys are their names
-     * @param string                 $subsection_name_to_target an existing for section that $new_subsections
-     *                                                          should be added before or after
-     *                                                          IF $subsection_name_to_target is null,
-     *                                                          then $new_subsections will be added to
-     *                                                          the beginning or end of the entire subsections array
-     * @param boolean                $add_before                whether to add $new_subsections, before or after
-     *                                                          $subsection_name_to_target,
-     *                                                          or if $subsection_name_to_target is null,
-     *                                                          before or after entire subsections array
-     * @return void
-     * @throws EE_Error
-     */
-    public function add_subsections($new_subsections, $subsection_name_to_target = null, $add_before = true)
-    {
-        foreach ($new_subsections as $subsection_name => $subsection) {
-            if (! $subsection instanceof EE_Form_Section_Base) {
-                EE_Error::add_error(
-                    sprintf(
-                        esc_html__(
-                            "Trying to add a %s as a subsection (it was named '%s') to the form section '%s'. It was removed.",
-                            'event_espresso'
-                        ),
-                        get_class($subsection),
-                        $subsection_name,
-                        $this->name()
-                    )
-                );
-                unset($new_subsections[ $subsection_name ]);
-            }
-        }
-        $this->_subsections = EEH_Array::insert_into_array(
-            $this->_subsections,
-            $new_subsections,
-            $subsection_name_to_target,
-            $add_before
-        );
-        if ($this->_construction_finalized) {
-            foreach ($this->_subsections as $name => $subsection) {
-                $subsection->_construct_finalize($this, $name);
-            }
-        }
-    }
-
-
-    /**
-     * Just gets all validatable subsections to clean their sensitive data
-     *
-     * @throws EE_Error
-     */
-    public function clean_sensitive_data()
-    {
-        foreach ($this->get_validatable_subsections() as $subsection) {
-            $subsection->clean_sensitive_data();
-        }
-    }
-
-
-    /**
-     * Sets the submission error message (aka validation error message for this form section and all sub-sections)
-     * @param string                           $form_submission_error_message
-     * @param EE_Form_Section_Validatable $form_section unused
-     * @throws EE_Error
-     */
-    public function set_submission_error_message(
-        $form_submission_error_message = ''
-    ) {
-        $this->_form_submission_error_message = ! empty($form_submission_error_message)
-            ? $form_submission_error_message
-            : $this->getAllValidationErrorsString();
-    }
-
-
-    /**
-     * Returns the cached error message. A default value is set for this during _validate(),
-     * (called during receive_form_submission) but it can be explicitly set using
-     * set_submission_error_message
-     *
-     * @return string
-     */
-    public function submission_error_message()
-    {
-        return $this->_form_submission_error_message;
-    }
-
-
-    /**
-     * Sets a message to display if the data submitted to the form was valid.
-     * @param string $form_submission_success_message
-     */
-    public function set_submission_success_message($form_submission_success_message = '')
-    {
-        $this->_form_submission_success_message = ! empty($form_submission_success_message)
-            ? $form_submission_success_message
-            : esc_html__('Form submitted successfully', 'event_espresso');
-    }
-
-
-    /**
-     * Gets a message appropriate for display when the form is correctly submitted
-     * @return string
-     */
-    public function submission_success_message()
-    {
-        return $this->_form_submission_success_message;
-    }
-
-
-    /**
-     * Returns the prefix that should be used on child of this form section for
-     * their html names. If this form section itself has a parent, prepends ITS
-     * prefix onto this form section's prefix. Used primarily by
-     * EE_Form_Input_Base::_set_default_html_name_if_empty
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function html_name_prefix()
-    {
-        if ($this->parent_section() instanceof EE_Form_Section_Proper) {
-            return $this->parent_section()->html_name_prefix() . '[' . $this->name() . ']';
-        }
-        return $this->name();
-    }
-
-
-    /**
-     * Gets the name, but first checks _construct_finalize has been called. If not,
-     * calls it (assumes there is no parent and that we want the name to be whatever
-     * was set, which is probably nothing, or the classname)
-     *
-     * @return string
-     * @throws EE_Error
-     */
-    public function name()
-    {
-        $this->ensure_construct_finalized_called();
-        return parent::name();
-    }
-
-
-    /**
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     */
-    public function parent_section()
-    {
-        $this->ensure_construct_finalized_called();
-        return parent::parent_section();
-    }
-
-
-    /**
-     * make sure construction finalized was called, otherwise children might not be ready
-     *
-     * @return void
-     * @throws EE_Error
-     */
-    public function ensure_construct_finalized_called()
-    {
-        if (! $this->_construction_finalized) {
-            $this->_construct_finalize($this->_parent_section, $this->_name);
-        }
-    }
-
-
-    /**
-     * Checks if any of this form section's inputs, or any of its children's inputs,
-     * are in teh form data. If any are found, returns true. Else false
-     *
-     * @param array $req_data
-     * @return boolean
-     * @throws EE_Error
-     */
-    public function form_data_present_in($req_data = null)
-    {
-        $req_data = $this->getCachedRequest($req_data);
-        foreach ($this->subsections() as $subsection) {
-            if ($subsection instanceof EE_Form_Input_Base) {
-                if ($subsection->form_data_present_in($req_data)) {
-                    return true;
-                }
-            } elseif ($subsection instanceof EE_Form_Section_Proper) {
-                if ($subsection->form_data_present_in($req_data)) {
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-
-
-    /**
-     * Gets validation errors for this form section and subsections
-     * Similar to EE_Form_Section_Validatable::get_validation_errors() except this
-     * gets the validation errors for ALL subsection
-     *
-     * @return EE_Validation_Error[]
-     * @throws EE_Error
-     */
-    public function get_validation_errors_accumulated()
-    {
-        $validation_errors = $this->get_validation_errors();
-        foreach ($this->get_validatable_subsections() as $subsection) {
-            if ($subsection instanceof EE_Form_Section_Proper) {
-                $validation_errors_on_this_subsection = $subsection->get_validation_errors_accumulated();
-            } else {
-                $validation_errors_on_this_subsection = $subsection->get_validation_errors();
-            }
-            if ($validation_errors_on_this_subsection) {
-                $validation_errors = array_merge($validation_errors, $validation_errors_on_this_subsection);
-            }
-        }
-        return $validation_errors;
-    }
-
-    /**
-     * Fetch validation errors from children and grandchildren and puts them in a single string.
-     * This traverses the form section tree to generate this, but you probably want to instead use
-     * get_form_submission_error_message() which is usually this message cached (or a custom validation error message)
-     *
-     * @return string
-     * @since $VID:$
-     */
-    protected function getAllValidationErrorsString()
-    {
-        $submission_error_messages = array();
-        // bad, bad, bad registrant
-        foreach ($this->get_validation_errors_accumulated() as $validation_error) {
-            if ($validation_error instanceof EE_Validation_Error) {
-                $form_section = $validation_error->get_form_section();
-                if ($form_section instanceof EE_Form_Input_Base) {
-                   $label = $validation_error->get_form_section()->html_label_text();
-                } elseif($form_section instanceof EE_Form_Section_Validatable) {
-                    $label = $validation_error->get_form_section()->name();
-                } else {
-                    $label = esc_html__('Unknown', 'event_espresso');
-                }
-                $submission_error_messages[] = sprintf(
-                    __('%s : %s', 'event_espresso'),
-                    $label,
-                    $validation_error->getMessage()
-                );
-            }
-        }
-        return implode('<br', $submission_error_messages);
-    }
-
-
-    /**
-     * This isn't just the name of an input, it's a path pointing to an input. The
-     * path is similar to a folder path: slash (/) means to descend into a subsection,
-     * dot-dot-slash (../) means to ascend into the parent section.
-     * After a series of slashes and dot-dot-slashes, there should be the name of an input,
-     * which will be returned.
-     * Eg, if you want the related input to be conditional on a sibling input name 'foobar'
-     * just use 'foobar'. If you want it to be conditional on an aunt/uncle input name
-     * 'baz', use '../baz'. If you want it to be conditional on a cousin input,
-     * the child of 'baz_section' named 'baz_child', use '../baz_section/baz_child'.
-     * Etc
-     *
-     * @param string|false $form_section_path we accept false also because substr( '../', '../' ) = false
-     * @return EE_Form_Section_Base
-     * @throws EE_Error
-     */
-    public function find_section_from_path($form_section_path)
-    {
-        //check if we can find the input from purely going straight up the tree
-        $input = parent::find_section_from_path($form_section_path);
-        if ($input instanceof EE_Form_Section_Base) {
-            return $input;
-        }
-        $next_slash_pos = strpos($form_section_path, '/');
-        if ($next_slash_pos !== false) {
-            $child_section_name = substr($form_section_path, 0, $next_slash_pos);
-            $subpath            = substr($form_section_path, $next_slash_pos + 1);
-        } else {
-            $child_section_name = $form_section_path;
-            $subpath            = '';
-        }
-        $child_section = $this->get_subsection($child_section_name);
-        if ($child_section instanceof EE_Form_Section_Base) {
-            return $child_section->find_section_from_path($subpath);
-        }
-        return null;
-    }
+	const SUBMITTED_FORM_DATA_SSN_KEY = 'submitted_form_data';
+
+	/**
+	 * Subsections
+	 *
+	 * @var EE_Form_Section_Validatable[]
+	 */
+	protected $_subsections = array();
+
+	/**
+	 * Strategy for laying out the form
+	 *
+	 * @var EE_Form_Section_Layout_Base
+	 */
+	protected $_layout_strategy;
+
+	/**
+	 * Whether or not this form has received and validated a form submission yet
+	 *
+	 * @var boolean
+	 */
+	protected $_received_submission = false;
+
+	/**
+	 * message displayed to users upon successful form submission
+	 *
+	 * @var string
+	 */
+	protected $_form_submission_success_message = '';
+
+	/**
+	 * message displayed to users upon unsuccessful form submission
+	 *
+	 * @var string
+	 */
+	protected $_form_submission_error_message = '';
+
+	/**
+	 * @var array like $_REQUEST
+	 */
+	protected $cached_request_data;
+
+	/**
+	 * Stores whether this form (and its sub-sections) were found to be valid or not.
+	 * Starts off as null, but once the form is validated, it set to either true or false
+	 * @var boolean|null
+	 */
+	protected $is_valid;
+
+	/**
+	 * Stores all the data that will localized for form validation
+	 *
+	 * @var array
+	 */
+	static protected $_js_localization = array();
+
+	/**
+	 * whether or not the form's localized validation JS vars have been set
+	 *
+	 * @type boolean
+	 */
+	static protected $_scripts_localized = false;
+
+
+	/**
+	 * when constructing a proper form section, calls _construct_finalize on children
+	 * so that they know who their parent is, and what name they've been given.
+	 *
+	 * @param array[] $options_array   {
+	 * @type          $subsections     EE_Form_Section_Validatable[] where keys are the section's name
+	 * @type          $include         string[] numerically-indexed where values are section names to be included,
+	 *                                 and in that order. This is handy if you want
+	 *                                 the subsections to be ordered differently than the default, and if you override
+	 *                                 which fields are shown
+	 * @type          $exclude         string[] values are subsections to be excluded. This is handy if you want
+	 *                                 to remove certain default subsections (note: if you specify BOTH 'include' AND
+	 *                                 'exclude', the inclusions will be applied first, and the exclusions will exclude
+	 *                                 items from that list of inclusions)
+	 * @type          $layout_strategy EE_Form_Section_Layout_Base strategy for laying out the form
+	 *                                 } @see EE_Form_Section_Validatable::__construct()
+	 * @throws EE_Error
+	 */
+	public function __construct($options_array = array())
+	{
+		$options_array = (array) apply_filters(
+			'FHEE__EE_Form_Section_Proper___construct__options_array',
+			$options_array,
+			$this
+		);
+		//call parent first, as it may be setting the name
+		parent::__construct($options_array);
+		//if they've included subsections in the constructor, add them now
+		if (isset($options_array['include'])) {
+			//we are going to make sure we ONLY have those subsections to include
+			//AND we are going to make sure they're in that specified order
+			$reordered_subsections = array();
+			foreach ($options_array['include'] as $input_name) {
+				if (isset($this->_subsections[ $input_name ])) {
+					$reordered_subsections[ $input_name ] = $this->_subsections[ $input_name ];
+				}
+			}
+			$this->_subsections = $reordered_subsections;
+		}
+		if (isset($options_array['exclude'])) {
+			$exclude            = $options_array['exclude'];
+			$this->_subsections = array_diff_key($this->_subsections, array_flip($exclude));
+		}
+		if (isset($options_array['layout_strategy'])) {
+			$this->_layout_strategy = $options_array['layout_strategy'];
+		}
+		if (! $this->_layout_strategy) {
+			$this->_layout_strategy = is_admin() ? new EE_Admin_Two_Column_Layout() : new EE_Two_Column_Layout();
+		}
+		$this->_layout_strategy->_construct_finalize($this);
+		//ok so we are definitely going to want the forms JS,
+		//so enqueue it or remember to enqueue it during wp_enqueue_scripts
+		if (did_action('wp_enqueue_scripts') || did_action('admin_enqueue_scripts')) {
+			//ok so they've constructed this object after when they should have.
+			//just enqueue the generic form scripts and initialize the form immediately in the JS
+			EE_Form_Section_Proper::wp_enqueue_scripts(true);
+		} else {
+			add_action('wp_enqueue_scripts', array('EE_Form_Section_Proper', 'wp_enqueue_scripts'));
+			add_action('admin_enqueue_scripts', array('EE_Form_Section_Proper', 'wp_enqueue_scripts'));
+		}
+		add_action('wp_footer', array($this, 'ensure_scripts_localized'), 1);
+		/**
+		 * Gives other plugins a chance to hook in before construct finalize is called.
+		 * The form probably doesn't yet have a parent form section.
+		 * Since 4.9.32, when this action was introduced, this is the best place to add a subsection onto a form,
+		 * assuming you don't care what the form section's name, HTML ID, or HTML name etc are.
+		 * Also see AHEE__EE_Form_Section_Proper___construct_finalize__end
+		 *
+		 * @since 4.9.32
+		 * @param EE_Form_Section_Proper $this          before __construct is done, but all of its logic,
+		 *                                              except maybe calling _construct_finalize has been done
+		 * @param array                  $options_array options passed into the constructor
+		 */
+		do_action(
+			'AHEE__EE_Form_Input_Base___construct__before_construct_finalize_called',
+			$this,
+			$options_array
+		);
+		if (isset($options_array['name'])) {
+			$this->_construct_finalize(null, $options_array['name']);
+		}
+	}
+
+
+	/**
+	 * Finishes construction given the parent form section and this form section's name
+	 *
+	 * @param EE_Form_Section_Proper $parent_form_section
+	 * @param string                 $name
+	 * @throws EE_Error
+	 */
+	public function _construct_finalize($parent_form_section, $name)
+	{
+		parent::_construct_finalize($parent_form_section, $name);
+		$this->_set_default_name_if_empty();
+		$this->_set_default_html_id_if_empty();
+		foreach ($this->_subsections as $subsection_name => $subsection) {
+			if ($subsection instanceof EE_Form_Section_Base) {
+				$subsection->_construct_finalize($this, $subsection_name);
+			} else {
+				throw new EE_Error(
+					sprintf(
+						esc_html__(
+							'Subsection "%s" is not an instanceof EE_Form_Section_Base on form "%s". It is a "%s"',
+							'event_espresso'
+						),
+						$subsection_name,
+						get_class($this),
+						$subsection ? get_class($subsection) : esc_html__('NULL', 'event_espresso')
+					)
+				);
+			}
+		}
+		/**
+		 * Action performed just after form has been given a name (and HTML ID etc) and is fully constructed.
+		 * If you have code that should modify the form and needs it and its subsections to have a name, HTML ID
+		 * (or other attributes derived from the name like the HTML label id, etc), this is where it should be done.
+		 * This might only happen just before displaying the form, or just before it receives form submission data.
+		 * If you need to modify the form or its subsections before _construct_finalize is called on it (and we've
+		 * ensured it has a name, HTML IDs, etc
+		 *
+		 * @param EE_Form_Section_Proper      $this
+		 * @param EE_Form_Section_Proper|null $parent_form_section
+		 * @param string                      $name
+		 */
+		do_action(
+			'AHEE__EE_Form_Section_Proper___construct_finalize__end',
+			$this,
+			$parent_form_section,
+			$name
+		);
+	}
+
+
+	/**
+	 * Gets the layout strategy for this form section
+	 *
+	 * @return EE_Form_Section_Layout_Base
+	 */
+	public function get_layout_strategy()
+	{
+		return $this->_layout_strategy;
+	}
+
+
+	/**
+	 * Gets the HTML for a single input for this form section according
+	 * to the layout strategy
+	 *
+	 * @param EE_Form_Input_Base $input
+	 * @return string
+	 */
+	public function get_html_for_input($input)
+	{
+		return $this->_layout_strategy->layout_input($input);
+	}
+
+
+	/**
+	 * was_submitted - checks if form inputs are present in request data
+	 * Basically an alias for form_data_present_in() (which is used by both
+	 * proper form sections and form inputs)
+	 *
+	 * @param null $form_data
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function was_submitted($form_data = null)
+	{
+		return $this->form_data_present_in($form_data);
+	}
+
+	/**
+	 * Gets the cached request data; but if there is none, or $req_data was set with
+	 * something different, refresh the cache, and then return it
+	 * @param null $req_data
+	 * @return array
+	 */
+	protected function getCachedRequest($req_data = null)
+	{
+		if ($this->cached_request_data === null
+			|| (
+				$req_data !== null &&
+				$req_data !== $this->cached_request_data
+			)
+		) {
+			$req_data = apply_filters(
+				'FHEE__EE_Form_Section_Proper__receive_form_submission__req_data',
+				$req_data,
+				$this
+			);
+			if ($req_data === null) {
+				$req_data = array_merge($_GET, $_POST);
+			}
+			$req_data = apply_filters(
+				'FHEE__EE_Form_Section_Proper__receive_form_submission__request_data',
+				$req_data,
+				$this
+			);
+			$this->cached_request_data = (array)$req_data;
+		}
+		return $this->cached_request_data;
+	}
+
+
+	/**
+	 * After the form section is initially created, call this to sanitize the data in the submission
+	 * which relates to this form section, validate it, and set it as properties on the form.
+	 *
+	 * @param array|null $req_data should usually be $_POST (the default).
+	 *                             However, you CAN supply a different array.
+	 *                             Consider using set_defaults() instead however.
+	 *                             (If you rendered the form in the page using echo $form_x->get_html()
+	 *                             the inputs will have the correct name in the request data for this function
+	 *                             to find them and populate the form with them.
+	 *                             If you have a flat form (with only input subsections),
+	 *                             you can supply a flat array where keys
+	 *                             are the form input names and values are their values)
+	 * @param boolean    $validate whether or not to perform validation on this data. Default is,
+	 *                             of course, to validate that data, and set errors on the invalid values.
+	 *                             But if the data has already been validated
+	 *                             (eg you validated the data then stored it in the DB)
+	 *                             you may want to skip this step.
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	public function receive_form_submission($req_data = null, $validate = true)
+	{
+		$req_data = $this->getCachedRequest($req_data);
+		$this->_normalize($req_data);
+		if ($validate) {
+			$this->_validate();
+			//if it's invalid, we're going to want to re-display so remember what they submitted
+			if (! $this->is_valid()) {
+				$this->store_submitted_form_data_in_session();
+			}
+		}
+		if ($this->submission_error_message() === '' && ! $this->is_valid()) {
+			$this->set_submission_error_message();
+		}
+		do_action(
+			'AHEE__EE_Form_Section_Proper__receive_form_submission__end',
+			$req_data,
+			$this,
+			$validate
+		);
+	}
+
+
+	/**
+	 * caches the originally submitted input values in the session
+	 * so that they can be used to repopulate the form if it failed validation
+	 *
+	 * @return boolean whether or not the data was successfully stored in the session
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	protected function store_submitted_form_data_in_session()
+	{
+		return EE_Registry::instance()->SSN->set_session_data(
+			array(
+				EE_Form_Section_Proper::SUBMITTED_FORM_DATA_SSN_KEY => $this->submitted_values(true),
+			)
+		);
+	}
+
+
+	/**
+	 * retrieves the originally submitted input values in the session
+	 * so that they can be used to repopulate the form if it failed validation
+	 *
+	 * @return array
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	protected function get_submitted_form_data_from_session()
+	{
+		$session = EE_Registry::instance()->SSN;
+		if ($session instanceof EE_Session) {
+			return $session->get_session_data(
+				EE_Form_Section_Proper::SUBMITTED_FORM_DATA_SSN_KEY
+			);
+		}
+		return array();
+	}
+
+
+	/**
+	 * flushed the originally submitted input values from the session
+	 *
+	 * @return boolean whether or not the data was successfully removed from the session
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	protected function flush_submitted_form_data_from_session()
+	{
+		return EE_Registry::instance()->SSN->reset_data(
+			array(EE_Form_Section_Proper::SUBMITTED_FORM_DATA_SSN_KEY)
+		);
+	}
+
+
+	/**
+	 * Populates this form and its subsections with data from the session.
+	 * (Wrapper for EE_Form_Section_Proper::receive_form_submission, so it shows
+	 * validation errors when displaying too)
+	 * Returns true if the form was populated from the session, false otherwise
+	 *
+	 * @return boolean
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	public function populate_from_session()
+	{
+		$form_data_in_session = $this->get_submitted_form_data_from_session();
+		if (empty($form_data_in_session)) {
+			return false;
+		}
+		$this->receive_form_submission($form_data_in_session);
+		$this->flush_submitted_form_data_from_session();
+		if ($this->form_data_present_in($form_data_in_session)) {
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * Populates the default data for the form, given an array where keys are
+	 * the input names, and values are their values (preferably normalized to be their
+	 * proper PHP types, not all strings... although that should be ok too).
+	 * Proper subsections are sub-arrays, the key being the subsection's name, and
+	 * the value being an array formatted in teh same way
+	 *
+	 * @param array $default_data
+	 * @throws EE_Error
+	 */
+	public function populate_defaults($default_data)
+	{
+		foreach ($this->subsections(false) as $subsection_name => $subsection) {
+			if (isset($default_data[ $subsection_name ])) {
+				if ($subsection instanceof EE_Form_Input_Base) {
+					$subsection->set_default($default_data[ $subsection_name ]);
+				} elseif ($subsection instanceof EE_Form_Section_Proper) {
+					$subsection->populate_defaults($default_data[ $subsection_name ]);
+				}
+			}
+		}
+	}
+
+
+	/**
+	 * returns true if subsection exists
+	 *
+	 * @param string $name
+	 * @return boolean
+	 */
+	public function subsection_exists($name)
+	{
+		return isset($this->_subsections[ $name ]) ? true : false;
+	}
+
+
+	/**
+	 * Gets the subsection specified by its name
+	 *
+	 * @param string  $name
+	 * @param boolean $require_construction_to_be_finalized most client code should leave this as TRUE
+	 *                                                      so that the inputs will be properly configured.
+	 *                                                      However, some client code may be ok
+	 *                                                      with construction finalize being called later
+	 *                                                      (realizing that the subsections' html names
+	 *                                                      might not be set yet, etc.)
+	 * @return EE_Form_Section_Base
+	 * @throws EE_Error
+	 */
+	public function get_subsection($name, $require_construction_to_be_finalized = true)
+	{
+		if ($require_construction_to_be_finalized) {
+			$this->ensure_construct_finalized_called();
+		}
+		return $this->subsection_exists($name) ? $this->_subsections[ $name ] : null;
+	}
+
+
+	/**
+	 * Gets all the validatable subsections of this form section
+	 *
+	 * @return EE_Form_Section_Validatable[]
+	 * @throws EE_Error
+	 */
+	public function get_validatable_subsections()
+	{
+		$validatable_subsections = array();
+		foreach ($this->subsections() as $name => $obj) {
+			if ($obj instanceof EE_Form_Section_Validatable) {
+				$validatable_subsections[ $name ] = $obj;
+			}
+		}
+		return $validatable_subsections;
+	}
+
+
+	/**
+	 * Gets an input by the given name. If not found, or if its not an EE_FOrm_Input_Base child,
+	 * throw an EE_Error.
+	 *
+	 * @param string  $name
+	 * @param boolean $require_construction_to_be_finalized most client code should
+	 *                                                      leave this as TRUE so that the inputs will be properly
+	 *                                                      configured. However, some client code may be ok with
+	 *                                                      construction finalize being called later
+	 *                                                      (realizing that the subsections' html names might not be
+	 *                                                      set yet, etc.)
+	 * @return EE_Form_Input_Base
+	 * @throws EE_Error
+	 */
+	public function get_input($name, $require_construction_to_be_finalized = true)
+	{
+		$subsection = $this->get_subsection(
+			$name,
+			$require_construction_to_be_finalized
+		);
+		if (! $subsection instanceof EE_Form_Input_Base) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						"Subsection '%s' is not an instanceof EE_Form_Input_Base on form '%s'. It is a '%s'",
+						'event_espresso'
+					),
+					$name,
+					get_class($this),
+					$subsection ? get_class($subsection) : esc_html__('NULL', 'event_espresso')
+				)
+			);
+		}
+		return $subsection;
+	}
+
+
+	/**
+	 * Like get_input(), gets the proper subsection of the form given the name,
+	 * otherwise throws an EE_Error
+	 *
+	 * @param string  $name
+	 * @param boolean $require_construction_to_be_finalized most client code should
+	 *                                                      leave this as TRUE so that the inputs will be properly
+	 *                                                      configured. However, some client code may be ok with
+	 *                                                      construction finalize being called later
+	 *                                                      (realizing that the subsections' html names might not be
+	 *                                                      set yet, etc.)
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 */
+	public function get_proper_subsection($name, $require_construction_to_be_finalized = true)
+	{
+		$subsection = $this->get_subsection(
+			$name,
+			$require_construction_to_be_finalized
+		);
+		if (! $subsection instanceof EE_Form_Section_Proper) {
+			throw new EE_Error(
+				sprintf(
+					esc_html__(
+						"Subsection '%'s is not an instanceof EE_Form_Section_Proper on form '%s'",
+						'event_espresso'
+					),
+					$name,
+					get_class($this)
+				)
+			);
+		}
+		return $subsection;
+	}
+
+
+	/**
+	 * Gets the value of the specified input. Should be called after receive_form_submission()
+	 * or populate_defaults() on the form, where the normalized value on the input is set.
+	 *
+	 * @param string $name
+	 * @return mixed depending on the input's type and its normalization strategy
+	 * @throws EE_Error
+	 */
+	public function get_input_value($name)
+	{
+		$input = $this->get_input($name);
+		return $input->normalized_value();
+	}
+
+
+	/**
+	 * Checks if this form section itself is valid, and then checks its subsections
+	 *
+	 * @throws EE_Error
+	 * @return boolean
+	 */
+	public function is_valid()
+	{
+		if($this->is_valid === null) {
+			if (! $this->has_received_submission()) {
+				throw new EE_Error(
+					sprintf(
+						esc_html__(
+							'You cannot check if a form is valid before receiving the form submission using receive_form_submission',
+							'event_espresso'
+						)
+					)
+				);
+			}
+			if (! parent::is_valid()) {
+				$this->is_valid = false;
+			} else {
+				// ok so no general errors to this entire form section.
+				// so let's check the subsections, but only set errors if that hasn't been done yet
+				$this->is_valid = true;
+				foreach ($this->get_validatable_subsections() as $subsection) {
+					if (! $subsection->is_valid()) {
+						$this->is_valid = false;
+					}
+				}
+			}
+		}
+		return $this->is_valid;
+	}
+
+
+	/**
+	 * gets the default name of this form section if none is specified
+	 *
+	 * @return void
+	 */
+	protected function _set_default_name_if_empty()
+	{
+		if (! $this->_name) {
+			$classname    = get_class($this);
+			$default_name = str_replace('EE_', '', $classname);
+			$this->_name  = $default_name;
+		}
+	}
+
+
+	/**
+	 * Returns the HTML for the form, except for the form opening and closing tags
+	 * (as the form section doesn't know where you necessarily want to send the information to),
+	 * and except for a submit button. Enqueues JS and CSS; if called early enough we will
+	 * try to enqueue them in the header, otherwise they'll be enqueued in the footer.
+	 * Not doing_it_wrong because theoretically this CAN be used properly,
+	 * provided its used during "wp_enqueue_scripts", or it doesn't need to enqueue
+	 * any CSS.
+	 *
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 */
+	public function get_html_and_js()
+	{
+		$this->enqueue_js();
+		return $this->get_html();
+	}
+
+
+	/**
+	 * returns HTML for displaying this form section. recursively calls display_section() on all subsections
+	 *
+	 * @param bool $display_previously_submitted_data
+	 * @return string
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 * @throws EE_Error
+	 */
+	public function get_html($display_previously_submitted_data = true)
+	{
+		$this->ensure_construct_finalized_called();
+		if ($display_previously_submitted_data) {
+			$this->populate_from_session();
+		}
+		return $this->_form_html_filter
+			? $this->_form_html_filter->filterHtml($this->_layout_strategy->layout_form(), $this)
+			: $this->_layout_strategy->layout_form();
+	}
+
+
+	/**
+	 * enqueues JS and CSS for the form.
+	 * It is preferred to call this before wp_enqueue_scripts so the
+	 * scripts and styles can be put in the header, but if called later
+	 * they will be put in the footer (which is OK for JS, but in HTML4 CSS should
+	 * only be in the header; but in HTML5 its ok in the body.
+	 * See http://stackoverflow.com/questions/4957446/load-external-css-file-in-body-tag.
+	 * So if your form enqueues CSS, it's preferred to call this before wp_enqueue_scripts.)
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function enqueue_js()
+	{
+		$this->_enqueue_and_localize_form_js();
+		foreach ($this->subsections() as $subsection) {
+			$subsection->enqueue_js();
+		}
+	}
+
+
+	/**
+	 * adds a filter so that jquery validate gets enqueued in EE_System::wp_enqueue_scripts().
+	 * This must be done BEFORE wp_enqueue_scripts() gets called, which is on
+	 * the wp_enqueue_scripts hook.
+	 * However, registering the form js and localizing it can happen when we
+	 * actually output the form (which is preferred, seeing how teh form's fields
+	 * could change until it's actually outputted)
+	 *
+	 * @param boolean $init_form_validation_automatically whether or not we want the form validation
+	 *                                                    to be triggered automatically or not
+	 * @return void
+	 */
+	public static function wp_enqueue_scripts($init_form_validation_automatically = true)
+	{
+		wp_register_script(
+			'ee_form_section_validation',
+			EE_GLOBAL_ASSETS_URL . 'scripts' . DS . 'form_section_validation.js',
+			array('jquery-validate', 'jquery-ui-datepicker', 'jquery-validate-extra-methods'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		wp_localize_script(
+			'ee_form_section_validation',
+			'ee_form_section_validation_init',
+			array('init' => $init_form_validation_automatically ? '1' : '0')
+		);
+	}
+
+
+	/**
+	 * gets the variables used by form_section_validation.js.
+	 * This needs to be called AFTER we've called $this->_enqueue_jquery_validate_script,
+	 * but before the wordpress hook wp_loaded
+	 *
+	 * @throws EE_Error
+	 */
+	public function _enqueue_and_localize_form_js()
+	{
+		$this->ensure_construct_finalized_called();
+		//actually, we don't want to localize just yet. There may be other forms on the page.
+		//so we need to add our form section data to a static variable accessible by all form sections
+		//and localize it just before the footer
+		$this->localize_validation_rules();
+		add_action('wp_footer', array('EE_Form_Section_Proper', 'localize_script_for_all_forms'), 2);
+		add_action('admin_footer', array('EE_Form_Section_Proper', 'localize_script_for_all_forms'));
+	}
+
+
+	/**
+	 * add our form section data to a static variable accessible by all form sections
+	 *
+	 * @param bool $return_for_subsection
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function localize_validation_rules($return_for_subsection = false)
+	{
+		// we only want to localize vars ONCE for the entire form,
+		// so if the form section doesn't have a parent, then it must be the top dog
+		if ($return_for_subsection || ! $this->parent_section()) {
+			EE_Form_Section_Proper::$_js_localization['form_data'][ $this->html_id() ] = array(
+				'form_section_id'  => $this->html_id(true),
+				'validation_rules' => $this->get_jquery_validation_rules(),
+				'other_data'       => $this->get_other_js_data(),
+				'errors'           => $this->subsection_validation_errors_by_html_name(),
+			);
+			EE_Form_Section_Proper::$_scripts_localized                                = true;
+		}
+	}
+
+
+	/**
+	 * Gets an array of extra data that will be useful for client-side javascript.
+	 * This is primarily data added by inputs and forms in addition to any
+	 * scripts they might enqueue
+	 *
+	 * @param array $form_other_js_data
+	 * @return array
+	 * @throws EE_Error
+	 */
+	public function get_other_js_data($form_other_js_data = array())
+	{
+		foreach ($this->subsections() as $subsection) {
+			$form_other_js_data = $subsection->get_other_js_data($form_other_js_data);
+		}
+		return $form_other_js_data;
+	}
+
+
+	/**
+	 * Gets a flat array of inputs for this form section and its subsections.
+	 * Keys are their form names, and values are the inputs themselves
+	 *
+	 * @return EE_Form_Input_Base
+	 * @throws EE_Error
+	 */
+	public function inputs_in_subsections()
+	{
+		$inputs = array();
+		foreach ($this->subsections() as $subsection) {
+			if ($subsection instanceof EE_Form_Input_Base) {
+				$inputs[ $subsection->html_name() ] = $subsection;
+			} elseif ($subsection instanceof EE_Form_Section_Proper) {
+				$inputs += $subsection->inputs_in_subsections();
+			}
+		}
+		return $inputs;
+	}
+
+
+	/**
+	 * Gets a flat array of all the validation errors.
+	 * Keys are html names (because those should be unique)
+	 * and values are a string of all their validation errors
+	 *
+	 * @return string[]
+	 * @throws EE_Error
+	 */
+	public function subsection_validation_errors_by_html_name()
+	{
+		$inputs = $this->inputs();
+		$errors = array();
+		foreach ($inputs as $form_input) {
+			if ($form_input instanceof EE_Form_Input_Base && $form_input->get_validation_errors()) {
+				$errors[ $form_input->html_name() ] = $form_input->get_validation_error_string();
+			}
+		}
+		return $errors;
+	}
+
+
+	/**
+	 * passes all the form data required by the JS to the JS, and enqueues the few required JS files.
+	 * Should be setup by each form during the _enqueues_and_localize_form_js
+	 *
+	 * @throws InvalidArgumentException
+	 * @throws InvalidInterfaceException
+	 * @throws InvalidDataTypeException
+	 */
+	public static function localize_script_for_all_forms()
+	{
+		//allow inputs and stuff to hook in their JS and stuff here
+		do_action('AHEE__EE_Form_Section_Proper__localize_script_for_all_forms__begin');
+		EE_Form_Section_Proper::$_js_localization['localized_error_messages'] = EE_Form_Section_Proper::_get_localized_error_messages();
+		$email_validation_level = isset(EE_Registry::instance()->CFG->registration->email_validation_level)
+			? EE_Registry::instance()->CFG->registration->email_validation_level
+			: 'wp_default';
+		EE_Form_Section_Proper::$_js_localization['email_validation_level']   = $email_validation_level;
+		wp_enqueue_script('ee_form_section_validation');
+		wp_localize_script(
+			'ee_form_section_validation',
+			'ee_form_section_vars',
+			EE_Form_Section_Proper::$_js_localization
+		);
+	}
+
+
+	/**
+	 * ensure_scripts_localized
+	 *
+	 * @throws EE_Error
+	 */
+	public function ensure_scripts_localized()
+	{
+		if (! EE_Form_Section_Proper::$_scripts_localized) {
+			$this->_enqueue_and_localize_form_js();
+		}
+	}
+
+
+	/**
+	 * Gets the hard-coded validation error messages to be used in the JS. The convention
+	 * is that the key here should be the same as the custom validation rule put in the JS file
+	 *
+	 * @return array keys are custom validation rules, and values are internationalized strings
+	 */
+	private static function _get_localized_error_messages()
+	{
+		return array(
+			'validUrl' => esc_html__('This is not a valid absolute URL. Eg, http://domain.com/monkey.jpg', 'event_espresso'),
+			'regex'    => esc_html__('Please check your input', 'event_espresso'),
+		);
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public static function js_localization()
+	{
+		return self::$_js_localization;
+	}
+
+
+	/**
+	 * @return void
+	 */
+	public static function reset_js_localization()
+	{
+		self::$_js_localization = array();
+	}
+
+
+	/**
+	 * Gets the JS to put inside the jquery validation rules for subsection of this form section.
+	 * See parent function for more...
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 */
+	public function get_jquery_validation_rules()
+	{
+		$jquery_validation_rules = array();
+		foreach ($this->get_validatable_subsections() as $subsection) {
+			$jquery_validation_rules = array_merge(
+				$jquery_validation_rules,
+				$subsection->get_jquery_validation_rules()
+			);
+		}
+		return $jquery_validation_rules;
+	}
+
+
+	/**
+	 * Sanitizes all the data and sets the sanitized value of each field
+	 *
+	 * @param array $req_data like $_POST
+	 * @return void
+	 * @throws EE_Error
+	 */
+	protected function _normalize($req_data)
+	{
+		$this->_received_submission = true;
+		$this->_validation_errors   = array();
+		foreach ($this->get_validatable_subsections() as $subsection) {
+			try {
+				$subsection->_normalize($req_data);
+			} catch (EE_Validation_Error $e) {
+				$subsection->add_validation_error($e);
+			}
+		}
+	}
+
+
+	/**
+	 * Performs validation on this form section and its subsections.
+	 * For each subsection,
+	 * calls _validate_{subsection_name} on THIS form (if the function exists)
+	 * and passes it the subsection, then calls _validate on that subsection.
+	 * If you need to perform validation on the form as a whole (considering multiple)
+	 * you would be best to override this _validate method,
+	 * calling parent::_validate() first.
+	 *
+	 * @throws EE_Error
+	 */
+	protected function _validate()
+	{
+		//reset the cache of whether this form is valid or not- we're re-validating it now
+		$this->is_valid = null;
+		foreach ($this->get_validatable_subsections() as $subsection_name => $subsection) {
+			if (method_exists($this, '_validate_' . $subsection_name)) {
+				call_user_func_array(array($this, '_validate_' . $subsection_name), array($subsection));
+			}
+			$subsection->_validate();
+		}
+	}
+
+
+	/**
+	 * Gets all the validated inputs for the form section
+	 *
+	 * @return array
+	 * @throws EE_Error
+	 */
+	public function valid_data()
+	{
+		$inputs = array();
+		foreach ($this->subsections() as $subsection_name => $subsection) {
+			if ($subsection instanceof EE_Form_Section_Proper) {
+				$inputs[ $subsection_name ] = $subsection->valid_data();
+			} elseif ($subsection instanceof EE_Form_Input_Base) {
+				$inputs[ $subsection_name ] = $subsection->normalized_value();
+			}
+		}
+		return $inputs;
+	}
+
+
+	/**
+	 * Gets all the inputs on this form section
+	 *
+	 * @return EE_Form_Input_Base[]
+	 * @throws EE_Error
+	 */
+	public function inputs()
+	{
+		$inputs = array();
+		foreach ($this->subsections() as $subsection_name => $subsection) {
+			if ($subsection instanceof EE_Form_Input_Base) {
+				$inputs[ $subsection_name ] = $subsection;
+			}
+		}
+		return $inputs;
+	}
+
+
+	/**
+	 * Gets all the subsections which are a proper form
+	 *
+	 * @return EE_Form_Section_Proper[]
+	 * @throws EE_Error
+	 */
+	public function subforms()
+	{
+		$form_sections = array();
+		foreach ($this->subsections() as $name => $obj) {
+			if ($obj instanceof EE_Form_Section_Proper) {
+				$form_sections[ $name ] = $obj;
+			}
+		}
+		return $form_sections;
+	}
+
+
+	/**
+	 * Gets all the subsections (inputs, proper subsections, or html-only sections).
+	 * Consider using inputs() or subforms()
+	 * if you only want form inputs or proper form sections.
+	 *
+	 * @param boolean $require_construction_to_be_finalized most client code should
+	 *                                                      leave this as TRUE so that the inputs will be properly
+	 *                                                      configured. However, some client code may be ok with
+	 *                                                      construction finalize being called later
+	 *                                                      (realizing that the subsections' html names might not be
+	 *                                                      set yet, etc.)
+	 * @return EE_Form_Section_Proper[]
+	 * @throws EE_Error
+	 */
+	public function subsections($require_construction_to_be_finalized = true)
+	{
+		if ($require_construction_to_be_finalized) {
+			$this->ensure_construct_finalized_called();
+		}
+		return $this->_subsections;
+	}
+
+
+	/**
+	 * Returns whether this form has any subforms or inputs
+	 * @return bool
+	 */
+	public function hasSubsections()
+	{
+		return ! empty($this->_subsections);
+	}
+
+
+	/**
+	 * Returns a simple array where keys are input names, and values are their normalized
+	 * values. (Similar to calling get_input_value on inputs)
+	 *
+	 * @param boolean $include_subform_inputs Whether to include inputs from subforms,
+	 *                                        or just this forms' direct children inputs
+	 * @param boolean $flatten                Whether to force the results into 1-dimensional array,
+	 *                                        or allow multidimensional array
+	 * @return array if $flatten is TRUE it will always be a 1-dimensional array
+	 *                                        with array keys being input names
+	 *                                        (regardless of whether they are from a subsection or not),
+	 *                                        and if $flatten is FALSE it can be a multidimensional array
+	 *                                        where keys are always subsection names and values are either
+	 *                                        the input's normalized value, or an array like the top-level array
+	 * @throws EE_Error
+	 */
+	public function input_values($include_subform_inputs = false, $flatten = false)
+	{
+		return $this->_input_values(false, $include_subform_inputs, $flatten);
+	}
+
+
+	/**
+	 * Similar to EE_Form_Section_Proper::input_values(), except this returns the 'display_value'
+	 * of each input. On some inputs (especially radio boxes or checkboxes), the value stored
+	 * is not necessarily the value we want to display to users. This creates an array
+	 * where keys are the input names, and values are their display values
+	 *
+	 * @param boolean $include_subform_inputs Whether to include inputs from subforms,
+	 *                                        or just this forms' direct children inputs
+	 * @param boolean $flatten                Whether to force the results into 1-dimensional array,
+	 *                                        or allow multidimensional array
+	 * @return array if $flatten is TRUE it will always be a 1-dimensional array
+	 *                                        with array keys being input names
+	 *                                        (regardless of whether they are from a subsection or not),
+	 *                                        and if $flatten is FALSE it can be a multidimensional array
+	 *                                        where keys are always subsection names and values are either
+	 *                                        the input's normalized value, or an array like the top-level array
+	 * @throws EE_Error
+	 */
+	public function input_pretty_values($include_subform_inputs = false, $flatten = false)
+	{
+		return $this->_input_values(true, $include_subform_inputs, $flatten);
+	}
+
+
+	/**
+	 * Gets the input values from the form
+	 *
+	 * @param boolean $pretty                 Whether to retrieve the pretty value,
+	 *                                        or just the normalized value
+	 * @param boolean $include_subform_inputs Whether to include inputs from subforms,
+	 *                                        or just this forms' direct children inputs
+	 * @param boolean $flatten                Whether to force the results into 1-dimensional array,
+	 *                                        or allow multidimensional array
+	 * @return array if $flatten is TRUE it will always be a 1-dimensional array with array keys being
+	 *                                        input names (regardless of whether they are from a subsection or not),
+	 *                                        and if $flatten is FALSE it can be a multidimensional array
+	 *                                        where keys are always subsection names and values are either
+	 *                                        the input's normalized value, or an array like the top-level array
+	 * @throws EE_Error
+	 */
+	public function _input_values($pretty = false, $include_subform_inputs = false, $flatten = false)
+	{
+		$input_values = array();
+		foreach ($this->subsections() as $subsection_name => $subsection) {
+			if ($subsection instanceof EE_Form_Input_Base) {
+				$input_values[ $subsection_name ] = $pretty
+					? $subsection->pretty_value()
+					: $subsection->normalized_value();
+			} elseif ($subsection instanceof EE_Form_Section_Proper && $include_subform_inputs) {
+				$subform_input_values = $subsection->_input_values(
+					$pretty,
+					$include_subform_inputs,
+					$flatten
+				);
+				if ($flatten) {
+					$input_values = array_merge($input_values, $subform_input_values);
+				} else {
+					$input_values[ $subsection_name ] = $subform_input_values;
+				}
+			}
+		}
+		return $input_values;
+	}
+
+
+	/**
+	 * Gets the originally submitted input values from the form
+	 *
+	 * @param boolean $include_subforms  Whether to include inputs from subforms,
+	 *                                   or just this forms' direct children inputs
+	 * @return array                     if $flatten is TRUE it will always be a 1-dimensional array
+	 *                                   with array keys being input names
+	 *                                   (regardless of whether they are from a subsection or not),
+	 *                                   and if $flatten is FALSE it can be a multidimensional array
+	 *                                   where keys are always subsection names and values are either
+	 *                                   the input's normalized value, or an array like the top-level array
+	 * @throws EE_Error
+	 */
+	public function submitted_values($include_subforms = false)
+	{
+		$submitted_values = array();
+		foreach ($this->subsections() as $subsection) {
+			if ($subsection instanceof EE_Form_Input_Base) {
+				// is this input part of an array of inputs?
+				if (strpos($subsection->html_name(), '[') !== false) {
+					$full_input_name  = EEH_Array::convert_array_values_to_keys(
+						explode(
+							'[',
+							str_replace(']', '', $subsection->html_name())
+						),
+						$subsection->raw_value()
+					);
+					$submitted_values = array_replace_recursive($submitted_values, $full_input_name);
+				} else {
+					$submitted_values[ $subsection->html_name() ] = $subsection->raw_value();
+				}
+			} elseif ($subsection instanceof EE_Form_Section_Proper && $include_subforms) {
+				$subform_input_values = $subsection->submitted_values($include_subforms);
+				$submitted_values     = array_replace_recursive($submitted_values, $subform_input_values);
+			}
+		}
+		return $submitted_values;
+	}
+
+
+	/**
+	 * Indicates whether or not this form has received a submission yet
+	 * (ie, had receive_form_submission called on it yet)
+	 *
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function has_received_submission()
+	{
+		$this->ensure_construct_finalized_called();
+		return $this->_received_submission;
+	}
+
+
+	/**
+	 * Equivalent to passing 'exclude' in the constructor's options array.
+	 * Removes the listed inputs from the form
+	 *
+	 * @param array $inputs_to_exclude values are the input names
+	 * @return void
+	 */
+	public function exclude(array $inputs_to_exclude = array())
+	{
+		foreach ($inputs_to_exclude as $input_to_exclude_name) {
+			unset($this->_subsections[ $input_to_exclude_name ]);
+		}
+	}
+
+
+	/**
+	 * @param array $inputs_to_hide
+	 * @throws EE_Error
+	 */
+	public function hide(array $inputs_to_hide = array())
+	{
+		foreach ($inputs_to_hide as $input_to_hide) {
+			$input = $this->get_input($input_to_hide);
+			$input->set_display_strategy(new EE_Hidden_Display_Strategy());
+		}
+	}
+
+
+	/**
+	 * add_subsections
+	 * Adds the listed subsections to the form section.
+	 * If $subsection_name_to_target is provided,
+	 * then new subsections are added before or after that subsection,
+	 * otherwise to the start or end of the entire subsections array.
+	 *
+	 * @param EE_Form_Section_Base[] $new_subsections           array of new form subsections
+	 *                                                          where keys are their names
+	 * @param string                 $subsection_name_to_target an existing for section that $new_subsections
+	 *                                                          should be added before or after
+	 *                                                          IF $subsection_name_to_target is null,
+	 *                                                          then $new_subsections will be added to
+	 *                                                          the beginning or end of the entire subsections array
+	 * @param boolean                $add_before                whether to add $new_subsections, before or after
+	 *                                                          $subsection_name_to_target,
+	 *                                                          or if $subsection_name_to_target is null,
+	 *                                                          before or after entire subsections array
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function add_subsections($new_subsections, $subsection_name_to_target = null, $add_before = true)
+	{
+		foreach ($new_subsections as $subsection_name => $subsection) {
+			if (! $subsection instanceof EE_Form_Section_Base) {
+				EE_Error::add_error(
+					sprintf(
+						esc_html__(
+							"Trying to add a %s as a subsection (it was named '%s') to the form section '%s'. It was removed.",
+							'event_espresso'
+						),
+						get_class($subsection),
+						$subsection_name,
+						$this->name()
+					)
+				);
+				unset($new_subsections[ $subsection_name ]);
+			}
+		}
+		$this->_subsections = EEH_Array::insert_into_array(
+			$this->_subsections,
+			$new_subsections,
+			$subsection_name_to_target,
+			$add_before
+		);
+		if ($this->_construction_finalized) {
+			foreach ($this->_subsections as $name => $subsection) {
+				$subsection->_construct_finalize($this, $name);
+			}
+		}
+	}
+
+
+	/**
+	 * Just gets all validatable subsections to clean their sensitive data
+	 *
+	 * @throws EE_Error
+	 */
+	public function clean_sensitive_data()
+	{
+		foreach ($this->get_validatable_subsections() as $subsection) {
+			$subsection->clean_sensitive_data();
+		}
+	}
+
+
+	/**
+	 * Sets the submission error message (aka validation error message for this form section and all sub-sections)
+	 * @param string                           $form_submission_error_message
+	 * @param EE_Form_Section_Validatable $form_section unused
+	 * @throws EE_Error
+	 */
+	public function set_submission_error_message(
+		$form_submission_error_message = ''
+	) {
+		$this->_form_submission_error_message = ! empty($form_submission_error_message)
+			? $form_submission_error_message
+			: $this->getAllValidationErrorsString();
+	}
+
+
+	/**
+	 * Returns the cached error message. A default value is set for this during _validate(),
+	 * (called during receive_form_submission) but it can be explicitly set using
+	 * set_submission_error_message
+	 *
+	 * @return string
+	 */
+	public function submission_error_message()
+	{
+		return $this->_form_submission_error_message;
+	}
+
+
+	/**
+	 * Sets a message to display if the data submitted to the form was valid.
+	 * @param string $form_submission_success_message
+	 */
+	public function set_submission_success_message($form_submission_success_message = '')
+	{
+		$this->_form_submission_success_message = ! empty($form_submission_success_message)
+			? $form_submission_success_message
+			: esc_html__('Form submitted successfully', 'event_espresso');
+	}
+
+
+	/**
+	 * Gets a message appropriate for display when the form is correctly submitted
+	 * @return string
+	 */
+	public function submission_success_message()
+	{
+		return $this->_form_submission_success_message;
+	}
+
+
+	/**
+	 * Returns the prefix that should be used on child of this form section for
+	 * their html names. If this form section itself has a parent, prepends ITS
+	 * prefix onto this form section's prefix. Used primarily by
+	 * EE_Form_Input_Base::_set_default_html_name_if_empty
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function html_name_prefix()
+	{
+		if ($this->parent_section() instanceof EE_Form_Section_Proper) {
+			return $this->parent_section()->html_name_prefix() . '[' . $this->name() . ']';
+		}
+		return $this->name();
+	}
+
+
+	/**
+	 * Gets the name, but first checks _construct_finalize has been called. If not,
+	 * calls it (assumes there is no parent and that we want the name to be whatever
+	 * was set, which is probably nothing, or the classname)
+	 *
+	 * @return string
+	 * @throws EE_Error
+	 */
+	public function name()
+	{
+		$this->ensure_construct_finalized_called();
+		return parent::name();
+	}
+
+
+	/**
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 */
+	public function parent_section()
+	{
+		$this->ensure_construct_finalized_called();
+		return parent::parent_section();
+	}
+
+
+	/**
+	 * make sure construction finalized was called, otherwise children might not be ready
+	 *
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function ensure_construct_finalized_called()
+	{
+		if (! $this->_construction_finalized) {
+			$this->_construct_finalize($this->_parent_section, $this->_name);
+		}
+	}
+
+
+	/**
+	 * Checks if any of this form section's inputs, or any of its children's inputs,
+	 * are in teh form data. If any are found, returns true. Else false
+	 *
+	 * @param array $req_data
+	 * @return boolean
+	 * @throws EE_Error
+	 */
+	public function form_data_present_in($req_data = null)
+	{
+		$req_data = $this->getCachedRequest($req_data);
+		foreach ($this->subsections() as $subsection) {
+			if ($subsection instanceof EE_Form_Input_Base) {
+				if ($subsection->form_data_present_in($req_data)) {
+					return true;
+				}
+			} elseif ($subsection instanceof EE_Form_Section_Proper) {
+				if ($subsection->form_data_present_in($req_data)) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+
+	/**
+	 * Gets validation errors for this form section and subsections
+	 * Similar to EE_Form_Section_Validatable::get_validation_errors() except this
+	 * gets the validation errors for ALL subsection
+	 *
+	 * @return EE_Validation_Error[]
+	 * @throws EE_Error
+	 */
+	public function get_validation_errors_accumulated()
+	{
+		$validation_errors = $this->get_validation_errors();
+		foreach ($this->get_validatable_subsections() as $subsection) {
+			if ($subsection instanceof EE_Form_Section_Proper) {
+				$validation_errors_on_this_subsection = $subsection->get_validation_errors_accumulated();
+			} else {
+				$validation_errors_on_this_subsection = $subsection->get_validation_errors();
+			}
+			if ($validation_errors_on_this_subsection) {
+				$validation_errors = array_merge($validation_errors, $validation_errors_on_this_subsection);
+			}
+		}
+		return $validation_errors;
+	}
+
+	/**
+	 * Fetch validation errors from children and grandchildren and puts them in a single string.
+	 * This traverses the form section tree to generate this, but you probably want to instead use
+	 * get_form_submission_error_message() which is usually this message cached (or a custom validation error message)
+	 *
+	 * @return string
+	 * @since $VID:$
+	 */
+	protected function getAllValidationErrorsString()
+	{
+		$submission_error_messages = array();
+		// bad, bad, bad registrant
+		foreach ($this->get_validation_errors_accumulated() as $validation_error) {
+			if ($validation_error instanceof EE_Validation_Error) {
+				$form_section = $validation_error->get_form_section();
+				if ($form_section instanceof EE_Form_Input_Base) {
+				   $label = $validation_error->get_form_section()->html_label_text();
+				} elseif($form_section instanceof EE_Form_Section_Validatable) {
+					$label = $validation_error->get_form_section()->name();
+				} else {
+					$label = esc_html__('Unknown', 'event_espresso');
+				}
+				$submission_error_messages[] = sprintf(
+					__('%s : %s', 'event_espresso'),
+					$label,
+					$validation_error->getMessage()
+				);
+			}
+		}
+		return implode('<br', $submission_error_messages);
+	}
+
+
+	/**
+	 * This isn't just the name of an input, it's a path pointing to an input. The
+	 * path is similar to a folder path: slash (/) means to descend into a subsection,
+	 * dot-dot-slash (../) means to ascend into the parent section.
+	 * After a series of slashes and dot-dot-slashes, there should be the name of an input,
+	 * which will be returned.
+	 * Eg, if you want the related input to be conditional on a sibling input name 'foobar'
+	 * just use 'foobar'. If you want it to be conditional on an aunt/uncle input name
+	 * 'baz', use '../baz'. If you want it to be conditional on a cousin input,
+	 * the child of 'baz_section' named 'baz_child', use '../baz_section/baz_child'.
+	 * Etc
+	 *
+	 * @param string|false $form_section_path we accept false also because substr( '../', '../' ) = false
+	 * @return EE_Form_Section_Base
+	 * @throws EE_Error
+	 */
+	public function find_section_from_path($form_section_path)
+	{
+		//check if we can find the input from purely going straight up the tree
+		$input = parent::find_section_from_path($form_section_path);
+		if ($input instanceof EE_Form_Section_Base) {
+			return $input;
+		}
+		$next_slash_pos = strpos($form_section_path, '/');
+		if ($next_slash_pos !== false) {
+			$child_section_name = substr($form_section_path, 0, $next_slash_pos);
+			$subpath            = substr($form_section_path, $next_slash_pos + 1);
+		} else {
+			$child_section_name = $form_section_path;
+			$subpath            = '';
+		}
+		$child_section = $this->get_subsection($child_section_name);
+		if ($child_section instanceof EE_Form_Section_Base) {
+			return $child_section->find_section_from_path($subpath);
+		}
+		return null;
+	}
 }
 

core/libraries/form_sections/base/EE_Form_Section_Validatable.form.php

Indentation +147 added lines, -147 removed lines

@@ -1,6 +1,6 @@ 
 <?php
 if (! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -35,150 +35,150 @@ 
 abstract class EE_Form_Section_Validatable extends EE_Form_Section_Base
 {
 
-    /**
-     * Array of validation errors in this section. Does not contain validation errors in subsections, however.
-     * Those are stored individually on each subsection.
-     *
-     * @var EE_Validation_Error[]
-     */
-    protected $_validation_errors = array();
-
-
-
-    /**
-     * Errors on this form section. Note: EE_Form_Section_Proper
-     * has another function for getting all errors in this form section and subsections
-     * called get_validation_errors_accumulated
-     *
-     * @return EE_Validation_Error[]
-     */
-    public function get_validation_errors()
-    {
-        return $this->_validation_errors;
-    }
-
-
-
-    /**
-     * returns a comma-separated list of all the validation errors in it.
-     * If we want this to be customizable, we may decide to create a strategy for displaying it
-     *
-     * @return string
-     */
-    public function get_validation_error_string()
-    {
-        $validation_error_messages = array();
-        if ($this->get_validation_errors()) {
-            foreach ($this->get_validation_errors() as $validation_error) {
-                if ($validation_error instanceof EE_Validation_Error) {
-                    $validation_error_messages[] = $validation_error->getMessage();
-                }
-            }
-        }
-        return implode(", ", $validation_error_messages);
-    }
-
-
-
-    /**
-     * Performs validation on this form section (and subsections). Should be called after _normalize()
-     *
-     * @return boolean of whether or not the form section is valid
-     */
-    abstract protected function _validate();
-
-
-
-    /**
-     * Checks if this field has any validation errors
-     *
-     * @return boolean
-     */
-    public function is_valid()
-    {
-        if (count($this->_validation_errors)) {
-            return false;
-        } else {
-            return true;
-        }
-    }
-
-
-
-    /**
-     * Sanitizes input for this form section
-     *
-     * @param array $req_data is the full request data like $_POST
-     * @return boolean of whether a normalization error occurred
-     */
-    abstract protected function _normalize($req_data);
-
-
-
-    /**
-     * Creates a validation error from the arguments provided, and adds it to the form section's list.
-     * If such an EE_Validation_Error object is passed in as the first arg, simply sets this as its form section, and
-     * adds it to the list of validation errors of errors
-     *
-     * @param mixed     $message_or_object  internationalized string describing the validation error; or it could be a
-     *                                      proper EE_Validation_Error object
-     * @param string    $error_code         a short key which can be used to uniquely identify the error
-     * @param Exception $previous_exception if there was an exception that caused the error, that exception
-     * @return void
-     */
-    public function add_validation_error($message_or_object, $error_code = null, $previous_exception = null)
-    {
-        if ($message_or_object instanceof EE_Validation_Error) {
-            $validation_error = $message_or_object;
-            $validation_error->set_form_section($this);
-        } else {
-            $validation_error = new EE_Validation_Error($message_or_object, $error_code, $this, $previous_exception);
-        }
-        $this->_validation_errors[] = $validation_error;
-    }
-
-
-
-    /**
-     * When generating the JS for the jquery validation rules like<br>
-     * <code>$( "#myform" ).validate({
-     * rules: {
-     * password: "required",
-     * password_again: {
-     * equalTo: "#password"
-     * }
-     * }
-     * });</code>
-     * gets the sections like
-     * <br><code>password: "required",
-     * password_again: {
-     * equalTo: "#password"
-     * }</code>
-     * except we leave it as a PHP object, and leave wp_localize_script to
-     * turn it into a JSON object which can be used by the js
-     *
-     * @return array
-     */
-    abstract public function get_jquery_validation_rules();
-
-
-
-    /**
-     * Checks if this form section's data is present in the req data specified
-     *
-     * @param array $req_data usually $_POST, if null that's what's used
-     * @return boolean
-     */
-    abstract public function form_data_present_in($req_data = null);
-
-
-
-    /**
-     * Removes teh sensitive data from this form section (usually done after
-     * utilizing the data business function, but before saving it somewhere. Eg,
-     * may remove a password from the form after verifying it was correct)
-     *
-     * @return void
-     */
-    abstract public function clean_sensitive_data();
+	/**
+	 * Array of validation errors in this section. Does not contain validation errors in subsections, however.
+	 * Those are stored individually on each subsection.
+	 *
+	 * @var EE_Validation_Error[]
+	 */
+	protected $_validation_errors = array();
+
+
+
+	/**
+	 * Errors on this form section. Note: EE_Form_Section_Proper
+	 * has another function for getting all errors in this form section and subsections
+	 * called get_validation_errors_accumulated
+	 *
+	 * @return EE_Validation_Error[]
+	 */
+	public function get_validation_errors()
+	{
+		return $this->_validation_errors;
+	}
+
+
+
+	/**
+	 * returns a comma-separated list of all the validation errors in it.
+	 * If we want this to be customizable, we may decide to create a strategy for displaying it
+	 *
+	 * @return string
+	 */
+	public function get_validation_error_string()
+	{
+		$validation_error_messages = array();
+		if ($this->get_validation_errors()) {
+			foreach ($this->get_validation_errors() as $validation_error) {
+				if ($validation_error instanceof EE_Validation_Error) {
+					$validation_error_messages[] = $validation_error->getMessage();
+				}
+			}
+		}
+		return implode(", ", $validation_error_messages);
+	}
+
+
+
+	/**
+	 * Performs validation on this form section (and subsections). Should be called after _normalize()
+	 *
+	 * @return boolean of whether or not the form section is valid
+	 */
+	abstract protected function _validate();
+
+
+
+	/**
+	 * Checks if this field has any validation errors
+	 *
+	 * @return boolean
+	 */
+	public function is_valid()
+	{
+		if (count($this->_validation_errors)) {
+			return false;
+		} else {
+			return true;
+		}
+	}
+
+
+
+	/**
+	 * Sanitizes input for this form section
+	 *
+	 * @param array $req_data is the full request data like $_POST
+	 * @return boolean of whether a normalization error occurred
+	 */
+	abstract protected function _normalize($req_data);
+
+
+
+	/**
+	 * Creates a validation error from the arguments provided, and adds it to the form section's list.
+	 * If such an EE_Validation_Error object is passed in as the first arg, simply sets this as its form section, and
+	 * adds it to the list of validation errors of errors
+	 *
+	 * @param mixed     $message_or_object  internationalized string describing the validation error; or it could be a
+	 *                                      proper EE_Validation_Error object
+	 * @param string    $error_code         a short key which can be used to uniquely identify the error
+	 * @param Exception $previous_exception if there was an exception that caused the error, that exception
+	 * @return void
+	 */
+	public function add_validation_error($message_or_object, $error_code = null, $previous_exception = null)
+	{
+		if ($message_or_object instanceof EE_Validation_Error) {
+			$validation_error = $message_or_object;
+			$validation_error->set_form_section($this);
+		} else {
+			$validation_error = new EE_Validation_Error($message_or_object, $error_code, $this, $previous_exception);
+		}
+		$this->_validation_errors[] = $validation_error;
+	}
+
+
+
+	/**
+	 * When generating the JS for the jquery validation rules like<br>
+	 * <code>$( "#myform" ).validate({
+	 * rules: {
+	 * password: "required",
+	 * password_again: {
+	 * equalTo: "#password"
+	 * }
+	 * }
+	 * });</code>
+	 * gets the sections like
+	 * <br><code>password: "required",
+	 * password_again: {
+	 * equalTo: "#password"
+	 * }</code>
+	 * except we leave it as a PHP object, and leave wp_localize_script to
+	 * turn it into a JSON object which can be used by the js
+	 *
+	 * @return array
+	 */
+	abstract public function get_jquery_validation_rules();
+
+
+
+	/**
+	 * Checks if this form section's data is present in the req data specified
+	 *
+	 * @param array $req_data usually $_POST, if null that's what's used
+	 * @return boolean
+	 */
+	abstract public function form_data_present_in($req_data = null);
+
+
+
+	/**
+	 * Removes teh sensitive data from this form section (usually done after
+	 * utilizing the data business function, but before saving it somewhere. Eg,
+	 * may remove a password from the form after verifying it was correct)
+	 *
+	 * @return void
+	 */
+	abstract public function clean_sensitive_data();
 }
\ No newline at end of file

modules/single_page_checkout/inc/EE_SPCO_JSON_Response.php

Spacing +40 added lines, -40 removed lines

@@ -107,71 +107,71 @@ 
 	public function __toString() {
 		$JSON_response = array();
 		// grab notices
-		$notices = EE_Error::get_notices( FALSE );
-		$this->set_attention( isset( $notices['attention'] ) ? $notices['attention'] : '' );
-		$this->set_errors( isset( $notices['errors'] ) ? $notices['errors'] : '' );
-		$this->set_success( isset( $notices['success'] ) ? $notices['success'] : '' );
+		$notices = EE_Error::get_notices(FALSE);
+		$this->set_attention(isset($notices['attention']) ? $notices['attention'] : '');
+		$this->set_errors(isset($notices['errors']) ? $notices['errors'] : '');
+		$this->set_success(isset($notices['success']) ? $notices['success'] : '');
 		// add notices to JSON response, but only if they exist
-		if ( $this->attention() ) {
+		if ($this->attention()) {
 			$JSON_response['attention'] = $this->attention();
 		}
-		if ( $this->errors() ) {
+		if ($this->errors()) {
 			$JSON_response['errors'] = $this->errors();
 		}
-		if ( $this->unexpected_errors() ) {
+		if ($this->unexpected_errors()) {
 			$JSON_response['unexpected_errors'] = $this->unexpected_errors();
 		}
-		if ( $this->success() ) {
+		if ($this->success()) {
 			$JSON_response['success'] = $this->success();
 		}
 		// but if NO notices are set... at least set the "success" as a key so that the JS knows everything worked
-		if ( ! isset( $JSON_response[ 'attention' ] ) && ! isset( $JSON_response[ 'errors' ] ) && ! isset( $JSON_response[ 'success' ] ) ) {
+		if ( ! isset($JSON_response['attention']) && ! isset($JSON_response['errors']) && ! isset($JSON_response['success'])) {
 			$JSON_response['success'] = null;
 		}
 		// set redirect_url, IF it exists
-		if ( $this->redirect_url() ) {
+		if ($this->redirect_url()) {
 			$JSON_response['redirect_url'] = $this->redirect_url();
 		}
 		// set registration_time_limit, IF it exists
-		if ( $this->registration_time_limit() ) {
+		if ($this->registration_time_limit()) {
 			$JSON_response['registration_time_limit'] = $this->registration_time_limit();
 		}
 		// set payment_amount, IF it exists
-		if ( $this->payment_amount() !== null ) {
-			$JSON_response[ 'payment_amount' ] = $this->payment_amount();
+		if ($this->payment_amount() !== null) {
+			$JSON_response['payment_amount'] = $this->payment_amount();
 		}
 		// grab generic return data
 		$return_data = $this->return_data();
 		// add billing form validation rules
-		if ( $this->validation_rules() ) {
+		if ($this->validation_rules()) {
 			$return_data['validation_rules'] = $this->validation_rules();
 		}
 		// set reg_step_html, IF it exists
-		if ( $this->reg_step_html() ) {
+		if ($this->reg_step_html()) {
 			$return_data['reg_step_html'] = $this->reg_step_html();
 		}
 		// set method of payment, IF it exists
-		if ( $this->method_of_payment() ) {
+		if ($this->method_of_payment()) {
 			$return_data['method_of_payment'] = $this->method_of_payment();
 		}
 		// set "plz_select_method_of_payment" message, IF it exists
-		if ( $this->plz_select_method_of_payment() ) {
+		if ($this->plz_select_method_of_payment()) {
 			$return_data['plz_select_method_of_payment'] = $this->plz_select_method_of_payment();
 		}
 		// set redirect_form, IF it exists
-		if ( $this->redirect_form() ) {
+		if ($this->redirect_form()) {
 			$return_data['redirect_form'] = $this->redirect_form();
 		}
 		// and finally, add return_data array to main JSON response array, IF it contains anything
 		// why did we add some of the above properties to the return data array?
 		// because it is easier and cleaner in the Javascript to deal with this way
-		if ( ! empty( $return_data )) {
+		if ( ! empty($return_data)) {
 			$JSON_response['return_data'] = $return_data;
 		}
 		// filter final array
-		$JSON_response = apply_filters( 'FHEE__EE_SPCO_JSON_Response___toString__JSON_response', $JSON_response );
+		$JSON_response = apply_filters('FHEE__EE_SPCO_JSON_Response___toString__JSON_response', $JSON_response);
 		// return encoded array
-		return wp_json_encode( $JSON_response );
+		return wp_json_encode($JSON_response);
 	}
 
 
@@ -179,7 +179,7 @@ 
 	/**
 	 * @param string $attention
 	 */
-	public function set_attention( $attention ) {
+	public function set_attention($attention) {
 		$this->_attention = $attention;
 	}
 
@@ -197,7 +197,7 @@ 
 	/**
 	 * @param string $errors
 	 */
-	public function set_errors( $errors ) {
+	public function set_errors($errors) {
 		$this->_errors = $errors;
 	}
 
@@ -224,7 +224,7 @@ 
 	/**
 	 * @param string $unexpected_errors
 	 */
-	public function set_unexpected_errors( $unexpected_errors ) {
+	public function set_unexpected_errors($unexpected_errors) {
 		$this->_unexpected_errors = $unexpected_errors;
 	}
 
@@ -233,7 +233,7 @@ 
 	/**
 	 * @param string $success
 	 */
-	public function set_success( $success ) {
+	public function set_success($success) {
 		$this->_success = $success;
 	}
 
@@ -251,7 +251,7 @@ 
 	/**
 	 * @param string $method_of_payment
 	 */
-	public function set_method_of_payment( $method_of_payment ) {
+	public function set_method_of_payment($method_of_payment) {
 		$this->_method_of_payment = $method_of_payment;
 	}
 
@@ -278,8 +278,8 @@ 
 	/**
 	 * @param float $payment_amount
 	 */
-	public function set_payment_amount( $payment_amount ) {
-		$this->_payment_amount = (float)$payment_amount;
+	public function set_payment_amount($payment_amount) {
+		$this->_payment_amount = (float) $payment_amount;
 	}
 
 
@@ -287,7 +287,7 @@ 
 	/**
 	 * @param string $next_step_html
 	 */
-	public function set_reg_step_html( $next_step_html ) {
+	public function set_reg_step_html($next_step_html) {
 		$this->_reg_step_html = $next_step_html;
 	}
 
@@ -305,7 +305,7 @@ 
 	/**
 	 * @param string $redirect_form
 	 */
-	public function set_redirect_form( $redirect_form ) {
+	public function set_redirect_form($redirect_form) {
 		$this->_redirect_form = $redirect_form;
 	}
 
@@ -315,7 +315,7 @@ 
 	 * @return string
 	 */
 	public function redirect_form() {
-		return ! empty( $this->_redirect_form ) ? $this->_redirect_form : FALSE;
+		return ! empty($this->_redirect_form) ? $this->_redirect_form : FALSE;
 	}
 
 
@@ -323,7 +323,7 @@ 
 	/**
 	 * @param string $plz_select_method_of_payment
 	 */
-	public function set_plz_select_method_of_payment( $plz_select_method_of_payment ) {
+	public function set_plz_select_method_of_payment($plz_select_method_of_payment) {
 		$this->_plz_select_method_of_payment = $plz_select_method_of_payment;
 	}
 
@@ -341,7 +341,7 @@ 
 	/**
 	 * @param string $redirect_url
 	 */
-	public function set_redirect_url( $redirect_url ) {
+	public function set_redirect_url($redirect_url) {
 		$this->_redirect_url = $redirect_url;
 	}
 
@@ -368,7 +368,7 @@ 
 	/**
 	 * @param string $registration_time_limit
 	 */
-	public function set_registration_time_limit( $registration_time_limit ) {
+	public function set_registration_time_limit($registration_time_limit) {
 		$this->_registration_time_limit = $registration_time_limit;
 	}
 
@@ -377,8 +377,8 @@ 
 	/**
 	 * @param array $return_data
 	 */
-	public function set_return_data( $return_data ) {
-		$this->_return_data = array_merge( $this->_return_data, $return_data );
+	public function set_return_data($return_data) {
+		$this->_return_data = array_merge($this->_return_data, $return_data);
 	}
 
 
@@ -395,9 +395,9 @@ 
 	/**
 	 * @param array $validation_rules
 	 */
-	public function add_validation_rules( $validation_rules = array() ) {
-		if ( is_array( $validation_rules ) && ! empty( $validation_rules )) {
-			$this->_validation_rules = array_merge( $this->_validation_rules, $validation_rules );
+	public function add_validation_rules($validation_rules = array()) {
+		if (is_array($validation_rules) && ! empty($validation_rules)) {
+			$this->_validation_rules = array_merge($this->_validation_rules, $validation_rules);
 		}
 	}
 
@@ -407,7 +407,7 @@ 
 	 * @return array | bool
 	 */
 	public function validation_rules() {
-		return ! empty( $this->_validation_rules ) ? $this->_validation_rules : FALSE;
+		return ! empty($this->_validation_rules) ? $this->_validation_rules : FALSE;
 	}
 
 

modules/single_page_checkout/EED_Single_Page_Checkout.module.php

Spacing +26 added lines, -26 removed lines

@@ -218,19 +218,19 @@ 
      */
     public static function set_definitions()
     {
-        if(defined('SPCO_BASE_PATH')) {
+        if (defined('SPCO_BASE_PATH')) {
             return;
         }
         define(
             'SPCO_BASE_PATH',
-            rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS
+            rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS).DS
         );
-        define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
-        define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
-        define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
-        define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
-        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
-        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
+        define('SPCO_CSS_URL', plugin_dir_url(__FILE__).'css'.DS);
+        define('SPCO_IMG_URL', plugin_dir_url(__FILE__).'img'.DS);
+        define('SPCO_JS_URL', plugin_dir_url(__FILE__).'js'.DS);
+        define('SPCO_INC_PATH', SPCO_BASE_PATH.'inc'.DS);
+        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH.'reg_steps'.DS);
+        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH.'templates'.DS);
         EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
         EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice();
     }
@@ -251,7 +251,7 @@ 
             return;
         }
         // filter list of reg_steps
-        $reg_steps_to_load = (array)apply_filters(
+        $reg_steps_to_load = (array) apply_filters(
             'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
             EED_Single_Page_Checkout::get_reg_steps()
         );
@@ -303,25 +303,25 @@ 
         if (empty($reg_steps)) {
             $reg_steps = array(
                 10  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'attendee_information',
                     'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
                     'slug'       => 'attendee_information',
                     'has_hooks'  => false,
                 ),
                 20  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'registration_confirmation',
                     'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
                     'slug'       => 'registration_confirmation',
                     'has_hooks'  => false,
                 ),
                 30  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'payment_options',
                     'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
                     'slug'       => 'payment_options',
                     'has_hooks'  => true,
                 ),
                 999 => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
+                    'file_path'  => SPCO_REG_STEPS_PATH.'finalize_registration',
                     'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
                     'slug'       => 'finalize_registration',
                     'has_hooks'  => false,
@@ -505,7 +505,7 @@ 
             // DEBUG LOG
             //$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
             // get reg form
-            if( ! $this->_check_form_submission()) {
+            if ( ! $this->_check_form_submission()) {
                 EED_Single_Page_Checkout::$_initialized = true;
                 return;
             }
@@ -546,7 +546,7 @@ 
         );
         // is session still valid ?
         if ($clear_session_requested
-            || ( EE_Registry::instance()->SSN->expired()
+            || (EE_Registry::instance()->SSN->expired()
               && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === ''
             )
         ) {
@@ -555,7 +555,7 @@ 
             // EE_Registry::instance()->SSN->reset_cart();
             // EE_Registry::instance()->SSN->reset_checkout();
             // EE_Registry::instance()->SSN->reset_transaction();
-            if (! $clear_session_requested) {
+            if ( ! $clear_session_requested) {
                 EE_Error::add_attention(
                     EE_Registry::$i18n_js_strings['registration_expiration_notice'],
                     __FILE__, __FUNCTION__, __LINE__
@@ -1114,7 +1114,7 @@ 
                     if ( ! $registration instanceof EE_Registration) {
                         throw new InvalidEntityException($registration, 'EE_Registration');
                     }
-                    $registrations[ $registration->ID() ] = $registration;
+                    $registrations[$registration->ID()] = $registration;
                 }
             }
             $registration_processor->fix_reg_final_price_rounding_issue($transaction);
@@ -1375,7 +1375,7 @@ 
                         ) {
                             EE_Error::add_success(
                                 $this->checkout->current_step->success_message()
-                                . '<br />' . $this->checkout->next_step->_instructions()
+                                . '<br />'.$this->checkout->next_step->_instructions()
                             );
                         }
                         // pack it up, pack it in...
@@ -1519,7 +1519,7 @@ 
         // load css
         wp_register_style(
             'single_page_checkout',
-            SPCO_CSS_URL . 'single_page_checkout.css',
+            SPCO_CSS_URL.'single_page_checkout.css',
             array('espresso_default'),
             EVENT_ESPRESSO_VERSION
         );
@@ -1527,21 +1527,21 @@ 
         // load JS
         wp_register_script(
             'jquery_plugin',
-            EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js',
+            EE_THIRD_PARTY_URL.'jquery	.plugin.min.js',
             array('jquery'),
             '1.0.1',
             true
         );
         wp_register_script(
             'jquery_countdown',
-            EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js',
+            EE_THIRD_PARTY_URL.'jquery	.countdown.min.js',
             array('jquery_plugin'),
             '2.0.2',
             true
         );
         wp_register_script(
             'single_page_checkout',
-            SPCO_JS_URL . 'single_page_checkout.js',
+            SPCO_JS_URL.'single_page_checkout.js',
             array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'),
             EVENT_ESPRESSO_VERSION,
             true
@@ -1564,7 +1564,7 @@ 
          *      AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
          */
         do_action(
-            'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(),
+            'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__'.$this->checkout->current_step->slug(),
             $this
         );
     }
@@ -1618,7 +1618,7 @@ 
                     'layout_strategy' =>
                         new EE_Template_Layout(
                             array(
-                                'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
+                                'layout_template_file' => SPCO_TEMPLATES_PATH.'registration_page_wrapper.template.php',
                                 'template_args'        => array(
                                     'empty_cart'              => $empty_cart,
                                     'revisit'                 => $this->checkout->revisit,
@@ -1692,7 +1692,7 @@ 
         ) {
             add_filter(
                 'FHEE__EEH_Template__powered_by_event_espresso__url',
-                function ($url) {
+                function($url) {
                     return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
                 }
             );
@@ -1871,7 +1871,7 @@ 
             '</h4>',
             '<br />',
             '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+            '<a href="'.get_post_type_archive_link('espresso_events').'" title="',
             '">',
             '</a>',
             '</p>'

Indentation +1844 added lines, -1844 removed lines

@@ -5,7 +5,7 @@ 
 use EventEspresso\core\exceptions\InvalidEntityException;
 
 if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -20,1849 +20,1849 @@ 
 class EED_Single_Page_Checkout extends EED_Module
 {
 
-    /**
-     * $_initialized - has the SPCO controller already been initialized ?
-     *
-     * @access private
-     * @var bool $_initialized
-     */
-    private static $_initialized = false;
-
-
-    /**
-     * $_checkout_verified - is the EE_Checkout verified as correct for this request ?
-     *
-     * @access private
-     * @var bool $_valid_checkout
-     */
-    private static $_checkout_verified = true;
-
-    /**
-     *    $_reg_steps_array - holds initial array of reg steps
-     *
-     * @access private
-     * @var array $_reg_steps_array
-     */
-    private static $_reg_steps_array = array();
-
-    /**
-     *    $checkout - EE_Checkout object for handling the properties of the current checkout process
-     *
-     * @access public
-     * @var EE_Checkout $checkout
-     */
-    public $checkout;
-
-
-
-    /**
-     * @return EED_Module|EED_Single_Page_Checkout
-     */
-    public static function instance()
-    {
-        add_filter('EED_Single_Page_Checkout__SPCO_active', '__return_true');
-        return parent::get_instance(__CLASS__);
-    }
-
-
-
-    /**
-     * @return EE_CART
-     */
-    public function cart()
-    {
-        return $this->checkout->cart;
-    }
-
-
-
-    /**
-     * @return EE_Transaction
-     */
-    public function transaction()
-    {
-        return $this->checkout->transaction;
-    }
-
-
-
-    /**
-     *    set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function set_hooks()
-    {
-        EED_Single_Page_Checkout::set_definitions();
-    }
-
-
-
-    /**
-     *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function set_hooks_admin()
-    {
-        EED_Single_Page_Checkout::set_definitions();
-        if ( ! (defined('DOING_AJAX') && DOING_AJAX)) {
-            return;
-        }
-        // going to start an output buffer in case anything gets accidentally output
-        // that might disrupt our JSON response
-        ob_start();
-        EED_Single_Page_Checkout::load_request_handler();
-        EED_Single_Page_Checkout::load_reg_steps();
-        // set ajax hooks
-        add_action('wp_ajax_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
-        add_action('wp_ajax_nopriv_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
-        add_action('wp_ajax_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
-        add_action('wp_ajax_nopriv_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
-        add_action('wp_ajax_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
-        add_action('wp_ajax_nopriv_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
-    }
-
-
-
-    /**
-     *    process ajax request
-     *
-     * @param string $ajax_action
-     * @throws EE_Error
-     */
-    public static function process_ajax_request($ajax_action)
-    {
-        EE_Registry::instance()->REQ->set('action', $ajax_action);
-        EED_Single_Page_Checkout::instance()->_initialize();
-    }
-
-
-
-    /**
-     *    ajax display registration step
-     *
-     * @throws EE_Error
-     */
-    public static function display_reg_step()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('display_spco_reg_step');
-    }
-
-
-
-    /**
-     *    ajax process registration step
-     *
-     * @throws EE_Error
-     */
-    public static function process_reg_step()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('process_reg_step');
-    }
-
-
-
-    /**
-     *    ajax process registration step
-     *
-     * @throws EE_Error
-     */
-    public static function update_reg_step()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('update_reg_step');
-    }
-
-
-
-    /**
-     *   update_checkout
-     *
-     * @access public
-     * @return void
-     * @throws EE_Error
-     */
-    public static function update_checkout()
-    {
-        EED_Single_Page_Checkout::process_ajax_request('update_checkout');
-    }
-
-
-
-    /**
-     *    load_request_handler
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function load_request_handler()
-    {
-        // load core Request_Handler class
-        if (EE_Registry::instance()->REQ !== null) {
-            EE_Registry::instance()->load_core('Request_Handler');
-        }
-    }
-
-
-
-    /**
-     *    set_definitions
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function set_definitions()
-    {
-        if(defined('SPCO_BASE_PATH')) {
-            return;
-        }
-        define(
-            'SPCO_BASE_PATH',
-            rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS
-        );
-        define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
-        define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
-        define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
-        define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
-        define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
-        define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
-        EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice();
-    }
-
-
-
-    /**
-     * load_reg_steps
-     * loads and instantiates each reg step based on the EE_Registry::instance()->CFG->registration->reg_steps array
-     *
-     * @access    private
-     * @throws EE_Error
-     */
-    public static function load_reg_steps()
-    {
-        static $reg_steps_loaded = false;
-        if ($reg_steps_loaded) {
-            return;
-        }
-        // filter list of reg_steps
-        $reg_steps_to_load = (array)apply_filters(
-            'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
-            EED_Single_Page_Checkout::get_reg_steps()
-        );
-        // sort by key (order)
-        ksort($reg_steps_to_load);
-        // loop through folders
-        foreach ($reg_steps_to_load as $order => $reg_step) {
-            // we need a
-            if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
-                // copy over to the reg_steps_array
-                EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
-                // register custom key route for each reg step
-                // ie: step=>"slug" - this is the entire reason we load the reg steps array now
-                EE_Config::register_route(
-                    $reg_step['slug'],
-                    'EED_Single_Page_Checkout',
-                    'run',
-                    'step'
-                );
-                // add AJAX or other hooks
-                if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
-                    // setup autoloaders if necessary
-                    if ( ! class_exists($reg_step['class_name'])) {
-                        EEH_Autoloader::register_autoloaders_for_each_file_in_folder(
-                            $reg_step['file_path'],
-                            true
-                        );
-                    }
-                    if (is_callable($reg_step['class_name'], 'set_hooks')) {
-                        call_user_func(array($reg_step['class_name'], 'set_hooks'));
-                    }
-                }
-            }
-        }
-        $reg_steps_loaded = true;
-    }
-
-
-
-    /**
-     *    get_reg_steps
-     *
-     * @access    public
-     * @return    array
-     */
-    public static function get_reg_steps()
-    {
-        $reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
-        if (empty($reg_steps)) {
-            $reg_steps = array(
-                10  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
-                    'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
-                    'slug'       => 'attendee_information',
-                    'has_hooks'  => false,
-                ),
-                20  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
-                    'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
-                    'slug'       => 'registration_confirmation',
-                    'has_hooks'  => false,
-                ),
-                30  => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
-                    'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
-                    'slug'       => 'payment_options',
-                    'has_hooks'  => true,
-                ),
-                999 => array(
-                    'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
-                    'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
-                    'slug'       => 'finalize_registration',
-                    'has_hooks'  => false,
-                ),
-            );
-        }
-        return $reg_steps;
-    }
-
-
-
-    /**
-     *    registration_checkout_for_admin
-     *
-     * @access    public
-     * @return    string
-     * @throws EE_Error
-     */
-    public static function registration_checkout_for_admin()
-    {
-        EED_Single_Page_Checkout::load_request_handler();
-        EE_Registry::instance()->REQ->set('step', 'attendee_information');
-        EE_Registry::instance()->REQ->set('action', 'display_spco_reg_step');
-        EE_Registry::instance()->REQ->set('process_form_submission', false);
-        EED_Single_Page_Checkout::instance()->_initialize();
-        EED_Single_Page_Checkout::instance()->_display_spco_reg_form();
-        return EE_Registry::instance()->REQ->get_output();
-    }
-
-
-
-    /**
-     * process_registration_from_admin
-     *
-     * @access public
-     * @return \EE_Transaction
-     * @throws EE_Error
-     */
-    public static function process_registration_from_admin()
-    {
-        EED_Single_Page_Checkout::load_request_handler();
-        EE_Registry::instance()->REQ->set('step', 'attendee_information');
-        EE_Registry::instance()->REQ->set('action', 'process_reg_step');
-        EE_Registry::instance()->REQ->set('process_form_submission', true);
-        EED_Single_Page_Checkout::instance()->_initialize();
-        if (EED_Single_Page_Checkout::instance()->checkout->current_step->completed()) {
-            $final_reg_step = end(EED_Single_Page_Checkout::instance()->checkout->reg_steps);
-            if ($final_reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
-                EED_Single_Page_Checkout::instance()->checkout->set_reg_step_initiated($final_reg_step);
-                if ($final_reg_step->process_reg_step()) {
-                    $final_reg_step->set_completed();
-                    EED_Single_Page_Checkout::instance()->checkout->update_txn_reg_steps_array();
-                    return EED_Single_Page_Checkout::instance()->checkout->transaction;
-                }
-            }
-        }
-        return null;
-    }
-
-
-
-    /**
-     *    run
-     *
-     * @access    public
-     * @param WP_Query $WP_Query
-     * @return    void
-     * @throws EE_Error
-     */
-    public function run($WP_Query)
-    {
-        if (
-            $WP_Query instanceof WP_Query
-            && $WP_Query->is_main_query()
-            && apply_filters('FHEE__EED_Single_Page_Checkout__run', true)
-            && $this->_is_reg_checkout()
-        ) {
-            $this->_initialize();
-        }
-    }
-
-
-
-    /**
-     * determines whether current url matches reg page url
-     *
-     * @return bool
-     */
-    protected function _is_reg_checkout()
-    {
-        // get current permalink for reg page without any extra query args
-        $reg_page_url = \get_permalink(EE_Config::instance()->core->reg_page_id);
-        // get request URI for current request, but without the scheme or host
-        $current_request_uri = \EEH_URL::filter_input_server_url('REQUEST_URI');
-        $current_request_uri = html_entity_decode($current_request_uri);
-        // get array of query args from the current request URI
-        $query_args = \EEH_URL::get_query_string($current_request_uri);
-        // grab page id if it is set
-        $page_id = isset($query_args['page_id']) ? absint($query_args['page_id']) : 0;
-        // and remove the page id from the query args (we will re-add it later)
-        unset($query_args['page_id']);
-        // now strip all query args from current request URI
-        $current_request_uri = remove_query_arg(array_keys($query_args), $current_request_uri);
-        // and re-add the page id if it was set
-        if ($page_id) {
-            $current_request_uri = add_query_arg('page_id', $page_id, $current_request_uri);
-        }
-        // remove slashes and ?
-        $current_request_uri = trim($current_request_uri, '?/');
-        // is current request URI part of the known full reg page URL ?
-        return ! empty($current_request_uri) && strpos($reg_page_url, $current_request_uri) !== false;
-    }
-
-
-
-    /**
-     * @param WP_Query $wp_query
-     * @return    void
-     * @throws EE_Error
-     */
-    public static function init($wp_query)
-    {
-        EED_Single_Page_Checkout::instance()->run($wp_query);
-    }
-
-
-
-    /**
-     *    _initialize - initial module setup
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    void
-     */
-    private function _initialize()
-    {
-        // ensure SPCO doesn't run twice
-        if (EED_Single_Page_Checkout::$_initialized) {
-            return;
-        }
-        try {
-            EED_Single_Page_Checkout::load_reg_steps();
-            $this->_verify_session();
-            // setup the EE_Checkout object
-            $this->checkout = $this->_initialize_checkout();
-            // filter checkout
-            $this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
-            // get the $_GET
-            $this->_get_request_vars();
-            if ($this->_block_bots()) {
-                return;
-            }
-            // filter continue_reg
-            $this->checkout->continue_reg = apply_filters(
-                'FHEE__EED_Single_Page_Checkout__init___continue_reg',
-                true,
-                $this->checkout
-            );
-            // load the reg steps array
-            if ( ! $this->_load_and_instantiate_reg_steps()) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // set the current step
-            $this->checkout->set_current_step($this->checkout->step);
-            // and the next step
-            $this->checkout->set_next_step();
-            // verify that everything has been setup correctly
-            if ( ! ($this->_verify_transaction_and_get_registrations() && $this->_final_verifications())) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // lock the transaction
-            $this->checkout->transaction->lock();
-            // make sure all of our cached objects are added to their respective model entity mappers
-            $this->checkout->refresh_all_entities();
-            // set amount owing
-            $this->checkout->amount_owing = $this->checkout->transaction->remaining();
-            // initialize each reg step, which gives them the chance to potentially alter the process
-            $this->_initialize_reg_steps();
-            // DEBUG LOG
-            //$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
-            // get reg form
-            if( ! $this->_check_form_submission()) {
-                EED_Single_Page_Checkout::$_initialized = true;
-                return;
-            }
-            // checkout the action!!!
-            $this->_process_form_action();
-            // add some style and make it dance
-            $this->add_styles_and_scripts();
-            // kk... SPCO has successfully run
-            EED_Single_Page_Checkout::$_initialized = true;
-            // set no cache headers and constants
-            EE_System::do_not_cache();
-            // add anchor
-            add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
-            // remove transaction lock
-            add_action('shutdown', array($this, 'unlock_transaction'), 1);
-        } catch (Exception $e) {
-            EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
-        }
-    }
-
-
-
-    /**
-     *    _verify_session
-     * checks that the session is valid and not expired
-     *
-     * @access    private
-     * @throws EE_Error
-     */
-    private function _verify_session()
-    {
-        if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
-            throw new EE_Error(__('The EE_Session class could not be loaded.', 'event_espresso'));
-        }
-        $clear_session_requested = filter_var(
-            EE_Registry::instance()->REQ->get('clear_session', false),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // is session still valid ?
-        if ($clear_session_requested
-            || ( EE_Registry::instance()->SSN->expired()
-              && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === ''
-            )
-        ) {
-            $this->checkout = new EE_Checkout();
-            EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-            // EE_Registry::instance()->SSN->reset_cart();
-            // EE_Registry::instance()->SSN->reset_checkout();
-            // EE_Registry::instance()->SSN->reset_transaction();
-            if (! $clear_session_requested) {
-                EE_Error::add_attention(
-                    EE_Registry::$i18n_js_strings['registration_expiration_notice'],
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-            }
-            // EE_Registry::instance()->SSN->reset_expired();
-        }
-    }
-
-
-
-    /**
-     *    _initialize_checkout
-     * loads and instantiates EE_Checkout
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return EE_Checkout
-     */
-    private function _initialize_checkout()
-    {
-        // look in session for existing checkout
-        /** @type EE_Checkout $checkout */
-        $checkout = EE_Registry::instance()->SSN->checkout();
-        // verify
-        if ( ! $checkout instanceof EE_Checkout) {
-            // instantiate EE_Checkout object for handling the properties of the current checkout process
-            $checkout = EE_Registry::instance()->load_file(
-                SPCO_INC_PATH,
-                'EE_Checkout',
-                'class', array(),
-                false
-            );
-        } else {
-            if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
-                $this->unlock_transaction();
-                wp_safe_redirect($checkout->redirect_url);
-                exit();
-            }
-        }
-        $checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
-        // verify again
-        if ( ! $checkout instanceof EE_Checkout) {
-            throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
-        }
-        // reset anything that needs a clean slate for each request
-        $checkout->reset_for_current_request();
-        return $checkout;
-    }
-
-
-
-    /**
-     *    _get_request_vars
-     *
-     * @access    private
-     * @return    void
-     * @throws EE_Error
-     */
-    private function _get_request_vars()
-    {
-        // load classes
-        EED_Single_Page_Checkout::load_request_handler();
-        //make sure this request is marked as belonging to EE
-        EE_Registry::instance()->REQ->set_espresso_page(true);
-        // which step is being requested ?
-        $this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
-        // which step is being edited ?
-        $this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
-        // and what we're doing on the current step
-        $this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
-        // timestamp
-        $this->checkout->uts = EE_Registry::instance()->REQ->get('uts', 0);
-        // returning to edit ?
-        $this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
-        // add reg url link to registration query params
-        if ($this->checkout->reg_url_link && strpos($this->checkout->reg_url_link, '1-') !== 0) {
-            $this->checkout->reg_cache_where_params[0]['REG_url_link'] = $this->checkout->reg_url_link;
-        }
-        // or some other kind of revisit ?
-        $this->checkout->revisit = filter_var(
-            EE_Registry::instance()->REQ->get('revisit', false),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // and whether or not to generate a reg form for this request
-        $this->checkout->generate_reg_form = filter_var(
-            EE_Registry::instance()->REQ->get('generate_reg_form', true),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // and whether or not to process a reg form submission for this request
-        $this->checkout->process_form_submission = filter_var(
-            EE_Registry::instance()->REQ->get(
-                'process_form_submission',
-                $this->checkout->action === 'process_reg_step'
-            ),
-            FILTER_VALIDATE_BOOLEAN
-        );
-        $this->checkout->process_form_submission = filter_var(
-            $this->checkout->action !== 'display_spco_reg_step'
-                ? $this->checkout->process_form_submission
-                : false,
-            FILTER_VALIDATE_BOOLEAN
-        );
-        // $this->_display_request_vars();
-    }
-
-
-
-    /**
-     *  _display_request_vars
-     *
-     * @access    protected
-     * @return    void
-     */
-    protected function _display_request_vars()
-    {
-        if ( ! WP_DEBUG) {
-            return;
-        }
-        EEH_Debug_Tools::printr($_REQUEST, '$_REQUEST', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->step, '$this->checkout->step', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->edit_step, '$this->checkout->edit_step', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->action, '$this->checkout->action', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->reg_url_link, '$this->checkout->reg_url_link', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->revisit, '$this->checkout->revisit', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->generate_reg_form, '$this->checkout->generate_reg_form', __FILE__, __LINE__);
-        EEH_Debug_Tools::printr($this->checkout->process_form_submission, '$this->checkout->process_form_submission', __FILE__, __LINE__);
-    }
-
-
-
-    /**
-     * _block_bots
-     * checks that the incoming request has either of the following set:
-     *  a uts (unix timestamp) which indicates that the request was redirected from the Ticket Selector
-     *  a REG URL Link, which indicates that the request is a return visit to SPCO for a valid TXN
-     * so if you're not coming from the Ticket Selector nor returning for a valid IP...
-     * then where you coming from man?
-     *
-     * @return boolean
-     */
-    private function _block_bots()
-    {
-        $invalid_checkout_access = EED_Invalid_Checkout_Access::getInvalidCheckoutAccess();
-        if ($invalid_checkout_access->checkoutAccessIsInvalid($this->checkout)) {
-            return true;
-        }
-        return false;
-    }
-
-
-
-    /**
-     *    _get_first_step
-     *  gets slug for first step in $_reg_steps_array
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    string
-     */
-    private function _get_first_step()
-    {
-        $first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
-        return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
-    }
-
-
-
-    /**
-     *    _load_and_instantiate_reg_steps
-     *  instantiates each reg step based on the loaded reg_steps array
-     *
-     * @access    private
-     * @throws EE_Error
-     * @return    bool
-     */
-    private function _load_and_instantiate_reg_steps()
-    {
-        do_action('AHEE__Single_Page_Checkout___load_and_instantiate_reg_steps__start', $this->checkout);
-        // have reg_steps already been instantiated ?
-        if (
-            empty($this->checkout->reg_steps)
-            || apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
-        ) {
-            // if not, then loop through raw reg steps array
-            foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
-                if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
-                    return false;
-                }
-            }
-            EE_Registry::instance()->CFG->registration->skip_reg_confirmation = true;
-            EE_Registry::instance()->CFG->registration->reg_confirmation_last = true;
-            // skip the registration_confirmation page ?
-            if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
-                // just remove it from the reg steps array
-                $this->checkout->remove_reg_step('registration_confirmation', false);
-            } else if (
-                isset($this->checkout->reg_steps['registration_confirmation'])
-                && EE_Registry::instance()->CFG->registration->reg_confirmation_last
-            ) {
-                // set the order to something big like 100
-                $this->checkout->set_reg_step_order('registration_confirmation', 100);
-            }
-            // filter the array for good luck
-            $this->checkout->reg_steps = apply_filters(
-                'FHEE__Single_Page_Checkout__load_reg_steps__reg_steps',
-                $this->checkout->reg_steps
-            );
-            // finally re-sort based on the reg step class order properties
-            $this->checkout->sort_reg_steps();
-        } else {
-            foreach ($this->checkout->reg_steps as $reg_step) {
-                // set all current step stati to FALSE
-                $reg_step->set_is_current_step(false);
-            }
-        }
-        if (empty($this->checkout->reg_steps)) {
-            EE_Error::add_error(
-                __('No Reg Steps were loaded..', 'event_espresso'),
-                __FILE__, __FUNCTION__, __LINE__
-            );
-            return false;
-        }
-        // make reg step details available to JS
-        $this->checkout->set_reg_step_JSON_info();
-        return true;
-    }
-
-
-
-    /**
-     *     _load_and_instantiate_reg_step
-     *
-     * @access    private
-     * @param array $reg_step
-     * @param int   $order
-     * @return bool
-     */
-    private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0)
-    {
-        // we need a file_path, class_name, and slug to add a reg step
-        if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
-            // if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
-            if (
-                $this->checkout->reg_url_link
-                && $this->checkout->step !== $reg_step['slug']
-                && $reg_step['slug'] !== 'finalize_registration'
-                // normally at this point we would NOT load the reg step, but this filter can change that
-                && apply_filters(
-                    'FHEE__Single_Page_Checkout___load_and_instantiate_reg_step__bypass_reg_step',
-                    true,
-                    $reg_step,
-                    $this->checkout
-                )
-            ) {
-                return true;
-            }
-            // instantiate step class using file path and class name
-            $reg_step_obj = EE_Registry::instance()->load_file(
-                $reg_step['file_path'],
-                $reg_step['class_name'],
-                'class',
-                $this->checkout,
-                false
-            );
-            // did we gets the goods ?
-            if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
-                // set reg step order based on config
-                $reg_step_obj->set_order($order);
-                // add instantiated reg step object to the master reg steps array
-                $this->checkout->add_reg_step($reg_step_obj);
-            } else {
-                EE_Error::add_error(
-                    __('The current step could not be set.', 'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-                return false;
-            }
-        } else {
-            if (WP_DEBUG) {
-                EE_Error::add_error(
-                    sprintf(
-                        __(
-                            'A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s',
-                            'event_espresso'
-                        ),
-                        isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
-                        isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
-                        isset($reg_step['slug']) ? $reg_step['slug'] : '',
-                        '<ul>',
-                        '<li>',
-                        '</li>',
-                        '</ul>'
-                    ),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-            }
-            return false;
-        }
-        return true;
-    }
-
-
-    /**
-     * _verify_transaction_and_get_registrations
-     *
-     * @access private
-     * @return bool
-     * @throws InvalidDataTypeException
-     * @throws InvalidEntityException
-     * @throws EE_Error
-     */
-    private function _verify_transaction_and_get_registrations()
-    {
-        // was there already a valid transaction in the checkout from the session ?
-        if ( ! $this->checkout->transaction instanceof EE_Transaction) {
-            // get transaction from db or session
-            $this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
-                ? $this->_get_transaction_and_cart_for_previous_visit()
-                : $this->_get_cart_for_current_session_and_setup_new_transaction();
-            if ( ! $this->checkout->transaction instanceof EE_Transaction) {
-                EE_Error::add_error(
-                    __('Your Registration and Transaction information could not be retrieved from the db.',
-                        'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-                $this->checkout->transaction = EE_Transaction::new_instance();
-                // add some style and make it dance
-                $this->add_styles_and_scripts();
-                EED_Single_Page_Checkout::$_initialized = true;
-                return false;
-            }
-            // and the registrations for the transaction
-            $this->_get_registrations($this->checkout->transaction);
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _get_transaction_and_cart_for_previous_visit
-     *
-     * @access private
-     * @return mixed EE_Transaction|NULL
-     */
-    private function _get_transaction_and_cart_for_previous_visit()
-    {
-        /** @var $TXN_model EEM_Transaction */
-        $TXN_model = EE_Registry::instance()->load_model('Transaction');
-        // because the reg_url_link is present in the request,
-        // this is a return visit to SPCO, so we'll get the transaction data from the db
-        $transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
-        // verify transaction
-        if ($transaction instanceof EE_Transaction) {
-            // and get the cart that was used for that transaction
-            $this->checkout->cart = $this->_get_cart_for_transaction($transaction);
-            return $transaction;
-        }
-        EE_Error::add_error(
-            __('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'),
-            __FILE__, __FUNCTION__, __LINE__
-        );
-        return null;
-
-    }
-
-
-
-    /**
-     * _get_cart_for_transaction
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    private function _get_cart_for_transaction($transaction)
-    {
-        return $this->checkout->get_cart_for_transaction($transaction);
-    }
-
-
-
-    /**
-     * get_cart_for_transaction
-     *
-     * @access public
-     * @param EE_Transaction $transaction
-     * @return EE_Cart
-     */
-    public function get_cart_for_transaction(EE_Transaction $transaction)
-    {
-        return $this->checkout->get_cart_for_transaction($transaction);
-    }
-
-
-
-    /**
-     * _get_transaction_and_cart_for_current_session
-     *    generates a new EE_Transaction object and adds it to the $_transaction property.
-     *
-     * @access private
-     * @return EE_Transaction
-     * @throws EE_Error
-     */
-    private function _get_cart_for_current_session_and_setup_new_transaction()
-    {
-        //  if there's no transaction, then this is the FIRST visit to SPCO
-        // so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
-        $this->checkout->cart = $this->_get_cart_for_transaction(null);
-        // and then create a new transaction
-        $transaction = $this->_initialize_transaction();
-        // verify transaction
-        if ($transaction instanceof EE_Transaction) {
-            // save it so that we have an ID for other objects to use
-            $transaction->save();
-            // and save TXN data to the cart
-            $this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
-        } else {
-            EE_Error::add_error(
-                __('A Valid Transaction could not be initialized.', 'event_espresso'),
-                __FILE__, __FUNCTION__, __LINE__
-            );
-        }
-        return $transaction;
-    }
-
-
-
-    /**
-     *    generates a new EE_Transaction object and adds it to the $_transaction property.
-     *
-     * @access private
-     * @return mixed EE_Transaction|NULL
-     */
-    private function _initialize_transaction()
-    {
-        try {
-            // ensure cart totals have been calculated
-            $this->checkout->cart->get_grand_total()->recalculate_total_including_taxes();
-            // grab the cart grand total
-            $cart_total = $this->checkout->cart->get_cart_grand_total();
-            // create new TXN
-            $transaction = EE_Transaction::new_instance(
-                array(
-                    'TXN_reg_steps' => $this->checkout->initialize_txn_reg_steps_array(),
-                    'TXN_total'     => $cart_total > 0 ? $cart_total : 0,
-                    'TXN_paid'      => 0,
-                    'STS_ID'        => EEM_Transaction::failed_status_code,
-                )
-            );
-            // save it so that we have an ID for other objects to use
-            $transaction->save();
-            // set cron job for following up on TXNs after their session has expired
-            EE_Cron_Tasks::schedule_expired_transaction_check(
-                EE_Registry::instance()->SSN->expiration() + 1,
-                $transaction->ID()
-            );
-            return $transaction;
-        } catch (Exception $e) {
-            EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
-        }
-        return null;
-    }
-
-
-    /**
-     * _get_registrations
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return void
-     * @throws InvalidDataTypeException
-     * @throws InvalidEntityException
-     * @throws EE_Error
-     */
-    private function _get_registrations(EE_Transaction $transaction)
-    {
-        // first step: grab the registrants  { : o
-        $registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
-        $this->checkout->total_ticket_count = count($registrations);
-        // verify registrations have been set
-        if (empty($registrations)) {
-            // if no cached registrations, then check the db
-            $registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
-            // still nothing ? well as long as this isn't a revisit
-            if (empty($registrations) && ! $this->checkout->revisit) {
-                // generate new registrations from scratch
-                $registrations = $this->_initialize_registrations($transaction);
-            }
-        }
-        // sort by their original registration order
-        usort($registrations, array('EED_Single_Page_Checkout', 'sort_registrations_by_REG_count'));
-        // then loop thru the array
-        foreach ($registrations as $registration) {
-            // verify each registration
-            if ($registration instanceof EE_Registration) {
-                // we display all attendee info for the primary registrant
-                if ($this->checkout->reg_url_link === $registration->reg_url_link()
-                    && $registration->is_primary_registrant()
-                ) {
-                    $this->checkout->primary_revisit = true;
-                    break;
-                }
-                if ($this->checkout->revisit && $this->checkout->reg_url_link !== $registration->reg_url_link()) {
-                    // but hide info if it doesn't belong to you
-                    $transaction->clear_cache('Registration', $registration->ID());
-                    $this->checkout->total_ticket_count--;
-                }
-                $this->checkout->set_reg_status_updated($registration->ID(), false);
-            }
-        }
-    }
-
-
-    /**
-     *    adds related EE_Registration objects for each ticket in the cart to the current EE_Transaction object
-     *
-     * @access private
-     * @param EE_Transaction $transaction
-     * @return    array
-     * @throws InvalidDataTypeException
-     * @throws InvalidEntityException
-     * @throws EE_Error
-     */
-    private function _initialize_registrations(EE_Transaction $transaction)
-    {
-        $att_nmbr = 0;
-        $registrations = array();
-        if ($transaction instanceof EE_Transaction) {
-            /** @type EE_Registration_Processor $registration_processor */
-            $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-            $this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
-            // now let's add the cart items to the $transaction
-            foreach ($this->checkout->cart->get_tickets() as $line_item) {
-                //do the following for each ticket of this type they selected
-                for ($x = 1; $x <= $line_item->quantity(); $x++) {
-                    $att_nmbr++;
-                    /** @var EventEspresso\core\services\commands\registration\CreateRegistrationCommand $CreateRegistrationCommand */
-                    $CreateRegistrationCommand = EE_Registry::instance()->create(
-                        'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
-                        array(
-                            $transaction,
-                            $line_item,
-                            $att_nmbr,
-                            $this->checkout->total_ticket_count,
-                        )
-                    );
-                    // override capabilities for frontend registrations
-                    if ( ! is_admin()) {
-                        $CreateRegistrationCommand->setCapCheck(
-                            new PublicCapabilities('', 'create_new_registration')
-                        );
-                    }
-                    $registration = EE_Registry::instance()->BUS->execute($CreateRegistrationCommand);
-                    if ( ! $registration instanceof EE_Registration) {
-                        throw new InvalidEntityException($registration, 'EE_Registration');
-                    }
-                    $registrations[ $registration->ID() ] = $registration;
-                }
-            }
-            $registration_processor->fix_reg_final_price_rounding_issue($transaction);
-        }
-        return $registrations;
-    }
-
-
-
-    /**
-     * sorts registrations by REG_count
-     *
-     * @access public
-     * @param EE_Registration $reg_A
-     * @param EE_Registration $reg_B
-     * @return int
-     */
-    public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B)
-    {
-        // this shouldn't ever happen within the same TXN, but oh well
-        if ($reg_A->count() === $reg_B->count()) {
-            return 0;
-        }
-        return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
-    }
-
-
-
-    /**
-     *    _final_verifications
-     * just makes sure that everything is set up correctly before proceeding
-     *
-     * @access    private
-     * @return    bool
-     * @throws EE_Error
-     */
-    private function _final_verifications()
-    {
-        // filter checkout
-        $this->checkout = apply_filters(
-            'FHEE__EED_Single_Page_Checkout___final_verifications__checkout',
-            $this->checkout
-        );
-        //verify that current step is still set correctly
-        if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
-            EE_Error::add_error(
-                __('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // if returning to SPCO, then verify that primary registrant is set
-        if ( ! empty($this->checkout->reg_url_link)) {
-            $valid_registrant = $this->checkout->transaction->primary_registration();
-            if ( ! $valid_registrant instanceof EE_Registration) {
-                EE_Error::add_error(
-                    __('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-            $valid_registrant = null;
-            foreach (
-                $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration
-            ) {
-                if (
-                    $registration instanceof EE_Registration
-                    && $registration->reg_url_link() === $this->checkout->reg_url_link
-                ) {
-                    $valid_registrant = $registration;
-                }
-            }
-            if ( ! $valid_registrant instanceof EE_Registration) {
-                // hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
-                if (EED_Single_Page_Checkout::$_checkout_verified) {
-                    // clear the session, mark the checkout as unverified, and try again
-                    EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-                    EED_Single_Page_Checkout::$_initialized = false;
-                    EED_Single_Page_Checkout::$_checkout_verified = false;
-                    $this->_initialize();
-                    EE_Error::reset_notices();
-                    return false;
-                }
-                EE_Error::add_error(
-                    __(
-                        'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-        }
-        // now that things have been kinda sufficiently verified,
-        // let's add the checkout to the session so that it's available to other systems
-        EE_Registry::instance()->SSN->set_checkout($this->checkout);
-        return true;
-    }
-
-
-
-    /**
-     *    _initialize_reg_steps
-     * first makes sure that EE_Transaction_Processor::set_reg_step_initiated() is called as required
-     * then loops thru all of the active reg steps and calls the initialize_reg_step() method
-     *
-     * @access    private
-     * @param bool $reinitializing
-     * @throws EE_Error
-     */
-    private function _initialize_reg_steps($reinitializing = false)
-    {
-        $this->checkout->set_reg_step_initiated($this->checkout->current_step);
-        // loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
-        foreach ($this->checkout->reg_steps as $reg_step) {
-            if ( ! $reg_step->initialize_reg_step()) {
-                // if not initialized then maybe this step is being removed...
-                if ( ! $reinitializing && $reg_step->is_current_step()) {
-                    // if it was the current step, then we need to start over here
-                    $this->_initialize_reg_steps(true);
-                    return;
-                }
-                continue;
-            }
-            // add css and JS for current step
-            $reg_step->enqueue_styles_and_scripts();
-            // i18n
-            $reg_step->translate_js_strings();
-            if ($reg_step->is_current_step()) {
-                // the text that appears on the reg step form submit button
-                $reg_step->set_submit_button_text();
-            }
-        }
-        // dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
-        do_action(
-            "AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}",
-            $this->checkout->current_step
-        );
-    }
-
-
-
-    /**
-     * _check_form_submission
-     *
-     * @access private
-     * @return boolean
-     */
-    private function _check_form_submission()
-    {
-        //does this request require the reg form to be generated ?
-        if ($this->checkout->generate_reg_form) {
-            // ever heard that song by Blue Rodeo ?
-            try {
-                $this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
-                // if not displaying a form, then check for form submission
-                if (
-                    $this->checkout->process_form_submission
-                    && $this->checkout->current_step->reg_form->was_submitted()
-                ) {
-                    // clear out any old data in case this step is being run again
-                    $this->checkout->current_step->set_valid_data(array());
-                    // capture submitted form data
-                    $this->checkout->current_step->reg_form->receive_form_submission(
-                        apply_filters(
-                            'FHEE__Single_Page_Checkout___check_form_submission__request_params',
-                            EE_Registry::instance()->REQ->params(),
-                            $this->checkout
-                        )
-                    );
-                    // validate submitted form data
-                    if ( ! $this->checkout->continue_reg || ! $this->checkout->current_step->reg_form->is_valid()) {
-                        // thou shall not pass !!!
-                        $this->checkout->continue_reg = false;
-                        // any form validation errors?
-                        if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
-                            EE_Error::add_error(
-                                $this->checkout->current_step->reg_form->submission_error_message(),
-                                __FILE__, __FUNCTION__, __LINE__
-                            );
-                        }
-                        // well not really... what will happen is
-                        // we'll just get redirected back to redo the current step
-                        $this->go_to_next_step();
-                        return false;
-                    }
-                }
-            } catch (EE_Error $e) {
-                $e->get_error();
-            }
-        }
-        return true;
-    }
-
-
-
-    /**
-     * _process_action
-     *
-     * @access private
-     * @return void
-     * @throws EE_Error
-     */
-    private function _process_form_action()
-    {
-        // what cha wanna do?
-        switch ($this->checkout->action) {
-            // AJAX next step reg form
-            case 'display_spco_reg_step' :
-                $this->checkout->redirect = false;
-                if (EE_Registry::instance()->REQ->ajax) {
-                    $this->checkout->json_response->set_reg_step_html(
-                        $this->checkout->current_step->display_reg_form()
-                    );
-                }
-                break;
-            default :
-                // meh... do one of those other steps first
-                if (
-                    ! empty($this->checkout->action)
-                    && is_callable(array($this->checkout->current_step, $this->checkout->action))
-                ) {
-                    // dynamically creates hook point like:
-                    //   AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
-                    do_action(
-                        "AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
-                        $this->checkout->current_step
-                    );
-                    // call action on current step
-                    if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
-                        // good registrant, you get to proceed
-                        if (
-                            $this->checkout->current_step->success_message() !== ''
-                            && apply_filters(
-                                'FHEE__Single_Page_Checkout___process_form_action__display_success',
-                                false
-                            )
-                        ) {
-                            EE_Error::add_success(
-                                $this->checkout->current_step->success_message()
-                                . '<br />' . $this->checkout->next_step->_instructions()
-                            );
-                        }
-                        // pack it up, pack it in...
-                        $this->_setup_redirect();
-                    }
-                    // dynamically creates hook point like:
-                    //  AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
-                    do_action(
-                        "AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
-                        $this->checkout->current_step
-                    );
-                } else {
-                    EE_Error::add_error(
-                        sprintf(
-                            __(
-                                'The requested form action "%s" does not exist for the current "%s" registration step.',
-                                'event_espresso'
-                            ),
-                            $this->checkout->action,
-                            $this->checkout->current_step->name()
-                        ),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                }
-            // end default
-        }
-        // store our progress so far
-        $this->checkout->stash_transaction_and_checkout();
-        // advance to the next step! If you pass GO, collect $200
-        $this->go_to_next_step();
-    }
-
-
-
-    /**
-     *        add_styles_and_scripts
-     *
-     * @access        public
-     * @return        void
-     */
-    public function add_styles_and_scripts()
-    {
-        // i18n
-        $this->translate_js_strings();
-        if ($this->checkout->admin_request) {
-            add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
-        } else {
-            add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
-        }
-    }
-
-
-
-    /**
-     *        translate_js_strings
-     *
-     * @access        public
-     * @return        void
-     */
-    public function translate_js_strings()
-    {
-        EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
-        EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
-        EE_Registry::$i18n_js_strings['server_error'] = __(
-            'An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_json_response'] = __(
-            'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['validation_error'] = __(
-            'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_payment_method'] = __(
-            'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['reg_step_error'] = __(
-            'This registration step could not be completed. Please refresh the page and try again.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['invalid_coupon'] = __(
-            'We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
-            __(
-                'Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.',
-                'event_espresso'
-            ),
-            '<br/>',
-            '<br/>'
-        );
-        EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
-        EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
-        EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
-        EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
-        EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
-        EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
-        EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice();
-        EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters(
-            'FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit',
-            true
-        );
-        EE_Registry::$i18n_js_strings['session_extension'] = absint(
-            apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS)
-        );
-        EE_Registry::$i18n_js_strings['session_expiration'] = gmdate(
-            'M d, Y H:i:s',
-            EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)
-        );
-    }
-
-
-
-    /**
-     *    enqueue_styles_and_scripts
-     *
-     * @access        public
-     * @return        void
-     * @throws EE_Error
-     */
-    public function enqueue_styles_and_scripts()
-    {
-        // load css
-        wp_register_style(
-            'single_page_checkout',
-            SPCO_CSS_URL . 'single_page_checkout.css',
-            array('espresso_default'),
-            EVENT_ESPRESSO_VERSION
-        );
-        wp_enqueue_style('single_page_checkout');
-        // load JS
-        wp_register_script(
-            'jquery_plugin',
-            EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js',
-            array('jquery'),
-            '1.0.1',
-            true
-        );
-        wp_register_script(
-            'jquery_countdown',
-            EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js',
-            array('jquery_plugin'),
-            '2.0.2',
-            true
-        );
-        wp_register_script(
-            'single_page_checkout',
-            SPCO_JS_URL . 'single_page_checkout.js',
-            array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'),
-            EVENT_ESPRESSO_VERSION,
-            true
-        );
-        if ($this->checkout->registration_form instanceof EE_Form_Section_Proper) {
-            $this->checkout->registration_form->enqueue_js();
-        }
-        if ($this->checkout->current_step->reg_form instanceof EE_Form_Section_Proper) {
-            $this->checkout->current_step->reg_form->enqueue_js();
-        }
-        wp_enqueue_script('single_page_checkout');
-        /**
-         * global action hook for enqueueing styles and scripts with
-         * spco calls.
-         */
-        do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
-        /**
-         * dynamic action hook for enqueueing styles and scripts with spco calls.
-         * The hook will end up being something like:
-         *      AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
-         */
-        do_action(
-            'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(),
-            $this
-        );
-    }
-
-
-
-    /**
-     *    display the Registration Single Page Checkout Form
-     *
-     * @access    private
-     * @return    void
-     * @throws EE_Error
-     */
-    private function _display_spco_reg_form()
-    {
-        // if registering via the admin, just display the reg form for the current step
-        if ($this->checkout->admin_request) {
-            EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
-        } else {
-            // add powered by EE msg
-            add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
-            $empty_cart = count(
-                $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)
-            ) < 1;
-            EE_Registry::$i18n_js_strings['empty_cart'] = $empty_cart;
-            $cookies_not_set_msg = '';
-            if ($empty_cart) {
-                $cookies_not_set_msg = apply_filters(
-                    'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
-                    sprintf(
-                        __(
-                            '%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s',
-                            'event_espresso'
-                        ),
-                        '<div class="ee-attention hidden" id="ee-cookies-not-set-msg">',
-                        '</div>',
-                        '<h6 class="important-notice">',
-                        '</h6>',
-                        '<p>',
-                        '</p>',
-                        '<br />',
-                        '<a href="http://www.whatarecookies.com/enable.asp" target="_blank">',
-                        '</a>'
-                    )
-                );
-            }
-            $this->checkout->registration_form = new EE_Form_Section_Proper(
-                array(
-                    'name'            => 'single-page-checkout',
-                    'html_id'         => 'ee-single-page-checkout-dv',
-                    'layout_strategy' =>
-                        new EE_Template_Layout(
-                            array(
-                                'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
-                                'template_args'        => array(
-                                    'empty_cart'              => $empty_cart,
-                                    'revisit'                 => $this->checkout->revisit,
-                                    'reg_steps'               => $this->checkout->reg_steps,
-                                    'next_step'               => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
-                                        ? $this->checkout->next_step->slug()
-                                        : '',
-                                    'empty_msg'               => apply_filters(
-                                        'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
-                                        sprintf(
-                                            __(
-                                                'You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
-                                                'event_espresso'
-                                            ),
-                                            '<a href="'
-                                            . get_post_type_archive_link('espresso_events')
-                                            . '" title="',
-                                            '">',
-                                            '</a>'
-                                        )
-                                    ),
-                                    'cookies_not_set_msg'     => $cookies_not_set_msg,
-                                    'registration_time_limit' => $this->checkout->get_registration_time_limit(),
-                                    'session_expiration'      => gmdate(
-                                        'M d, Y H:i:s',
-                                        EE_Registry::instance()->SSN->expiration()
-                                        + (get_option('gmt_offset') * HOUR_IN_SECONDS)
-                                    ),
-                                ),
-                            )
-                        ),
-                )
-            );
-            // load template and add to output sent that gets filtered into the_content()
-            EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html());
-        }
-    }
-
-
-
-    /**
-     *    add_extra_finalize_registration_inputs
-     *
-     * @access    public
-     * @param $next_step
-     * @internal  param string $label
-     * @return void
-     */
-    public function add_extra_finalize_registration_inputs($next_step)
-    {
-        if ($next_step === 'finalize_registration') {
-            echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
-        }
-    }
-
-
-
-    /**
-     *    display_registration_footer
-     *
-     * @access    public
-     * @return    string
-     */
-    public static function display_registration_footer()
-    {
-        if (
-        apply_filters(
-            'FHEE__EE_Front__Controller__show_reg_footer',
-            EE_Registry::instance()->CFG->admin->show_reg_footer
-        )
-        ) {
-            add_filter(
-                'FHEE__EEH_Template__powered_by_event_espresso__url',
-                function ($url) {
-                    return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
-                }
-            );
-            echo apply_filters(
-                'FHEE__EE_Front_Controller__display_registration_footer',
-                \EEH_Template::powered_by_event_espresso(
-                    '',
-                    'espresso-registration-footer-dv',
-                    array('utm_content' => 'registration_checkout')
-                )
-            );
-        }
-        return '';
-    }
-
-
-
-    /**
-     *    unlock_transaction
-     *
-     * @access    public
-     * @return    void
-     * @throws EE_Error
-     */
-    public function unlock_transaction()
-    {
-        if ($this->checkout->transaction instanceof EE_Transaction) {
-            $this->checkout->transaction->unlock();
-        }
-    }
-
-
-
-    /**
-     *        _setup_redirect
-     *
-     * @access    private
-     * @return void
-     */
-    private function _setup_redirect()
-    {
-        if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
-            $this->checkout->redirect = true;
-            if (empty($this->checkout->redirect_url)) {
-                $this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
-            }
-            $this->checkout->redirect_url = apply_filters(
-                'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url',
-                $this->checkout->redirect_url,
-                $this->checkout
-            );
-        }
-    }
-
-
-
-    /**
-     *   handle ajax message responses and redirects
-     *
-     * @access public
-     * @return void
-     * @throws EE_Error
-     */
-    public function go_to_next_step()
-    {
-        if (EE_Registry::instance()->REQ->ajax) {
-            // capture contents of output buffer we started earlier in the request, and insert into JSON response
-            $this->checkout->json_response->set_unexpected_errors(ob_get_clean());
-        }
-        $this->unlock_transaction();
-        // just return for these conditions
-        if (
-            $this->checkout->admin_request
-            || $this->checkout->action === 'redirect_form'
-            || $this->checkout->action === 'update_checkout'
-        ) {
-            return;
-        }
-        // AJAX response
-        $this->_handle_json_response();
-        // redirect to next step or the Thank You page
-        $this->_handle_html_redirects();
-        // hmmm... must be something wrong, so let's just display the form again !
-        $this->_display_spco_reg_form();
-    }
-
-
-
-    /**
-     *   _handle_json_response
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _handle_json_response()
-    {
-        // if this is an ajax request
-        if (EE_Registry::instance()->REQ->ajax) {
-            // DEBUG LOG
-            //$this->checkout->log(
-            //	__CLASS__, __FUNCTION__, __LINE__,
-            //	array(
-            //		'json_response_redirect_url' => $this->checkout->json_response->redirect_url(),
-            //		'redirect'                   => $this->checkout->redirect,
-            //		'continue_reg'               => $this->checkout->continue_reg,
-            //	)
-            //);
-            $this->checkout->json_response->set_registration_time_limit(
-                $this->checkout->get_registration_time_limit()
-            );
-            $this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
-            // just send the ajax (
-            $json_response = apply_filters(
-                'FHEE__EE_Single_Page_Checkout__JSON_response',
-                $this->checkout->json_response
-            );
-            echo $json_response;
-            exit();
-        }
-    }
-
-
-
-    /**
-     *   _handle_redirects
-     *
-     * @access protected
-     * @return void
-     */
-    protected function _handle_html_redirects()
-    {
-        // going somewhere ?
-        if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
-            // store notices in a transient
-            EE_Error::get_notices(false, true, true);
-            // DEBUG LOG
-            //$this->checkout->log(
-            //	__CLASS__, __FUNCTION__, __LINE__,
-            //	array(
-            //		'headers_sent' => headers_sent(),
-            //		'redirect_url'     => $this->checkout->redirect_url,
-            //		'headers_list'    => headers_list(),
-            //	)
-            //);
-            wp_safe_redirect($this->checkout->redirect_url);
-            exit();
-        }
-    }
-
-
-
-    /**
-     *   set_checkout_anchor
-     *
-     * @access public
-     * @return void
-     */
-    public function set_checkout_anchor()
-    {
-        echo '<a id="checkout" style="float: left; margin-left: -999em;"></a>';
-    }
-
-    /**
-     *    getRegistrationExpirationNotice
-     *
-     * @since $VID:$
-     * @access    public
-     * @return    string
-     */
-    public static function getRegistrationExpirationNotice()
-    {
-        return sprintf(
-            __('%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please accept our apologies for any inconvenience this may have caused.%8$s',
-                'event_espresso'),
-            '<h4 class="important-notice">',
-            '</h4>',
-            '<br />',
-            '<p>',
-            '<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
-            '">',
-            '</a>',
-            '</p>'
-        );
-    }
+	/**
+	 * $_initialized - has the SPCO controller already been initialized ?
+	 *
+	 * @access private
+	 * @var bool $_initialized
+	 */
+	private static $_initialized = false;
+
+
+	/**
+	 * $_checkout_verified - is the EE_Checkout verified as correct for this request ?
+	 *
+	 * @access private
+	 * @var bool $_valid_checkout
+	 */
+	private static $_checkout_verified = true;
+
+	/**
+	 *    $_reg_steps_array - holds initial array of reg steps
+	 *
+	 * @access private
+	 * @var array $_reg_steps_array
+	 */
+	private static $_reg_steps_array = array();
+
+	/**
+	 *    $checkout - EE_Checkout object for handling the properties of the current checkout process
+	 *
+	 * @access public
+	 * @var EE_Checkout $checkout
+	 */
+	public $checkout;
+
+
+
+	/**
+	 * @return EED_Module|EED_Single_Page_Checkout
+	 */
+	public static function instance()
+	{
+		add_filter('EED_Single_Page_Checkout__SPCO_active', '__return_true');
+		return parent::get_instance(__CLASS__);
+	}
+
+
+
+	/**
+	 * @return EE_CART
+	 */
+	public function cart()
+	{
+		return $this->checkout->cart;
+	}
+
+
+
+	/**
+	 * @return EE_Transaction
+	 */
+	public function transaction()
+	{
+		return $this->checkout->transaction;
+	}
+
+
+
+	/**
+	 *    set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function set_hooks()
+	{
+		EED_Single_Page_Checkout::set_definitions();
+	}
+
+
+
+	/**
+	 *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function set_hooks_admin()
+	{
+		EED_Single_Page_Checkout::set_definitions();
+		if ( ! (defined('DOING_AJAX') && DOING_AJAX)) {
+			return;
+		}
+		// going to start an output buffer in case anything gets accidentally output
+		// that might disrupt our JSON response
+		ob_start();
+		EED_Single_Page_Checkout::load_request_handler();
+		EED_Single_Page_Checkout::load_reg_steps();
+		// set ajax hooks
+		add_action('wp_ajax_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
+		add_action('wp_ajax_nopriv_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
+		add_action('wp_ajax_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
+		add_action('wp_ajax_nopriv_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
+		add_action('wp_ajax_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
+		add_action('wp_ajax_nopriv_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
+	}
+
+
+
+	/**
+	 *    process ajax request
+	 *
+	 * @param string $ajax_action
+	 * @throws EE_Error
+	 */
+	public static function process_ajax_request($ajax_action)
+	{
+		EE_Registry::instance()->REQ->set('action', $ajax_action);
+		EED_Single_Page_Checkout::instance()->_initialize();
+	}
+
+
+
+	/**
+	 *    ajax display registration step
+	 *
+	 * @throws EE_Error
+	 */
+	public static function display_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('display_spco_reg_step');
+	}
+
+
+
+	/**
+	 *    ajax process registration step
+	 *
+	 * @throws EE_Error
+	 */
+	public static function process_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('process_reg_step');
+	}
+
+
+
+	/**
+	 *    ajax process registration step
+	 *
+	 * @throws EE_Error
+	 */
+	public static function update_reg_step()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('update_reg_step');
+	}
+
+
+
+	/**
+	 *   update_checkout
+	 *
+	 * @access public
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public static function update_checkout()
+	{
+		EED_Single_Page_Checkout::process_ajax_request('update_checkout');
+	}
+
+
+
+	/**
+	 *    load_request_handler
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function load_request_handler()
+	{
+		// load core Request_Handler class
+		if (EE_Registry::instance()->REQ !== null) {
+			EE_Registry::instance()->load_core('Request_Handler');
+		}
+	}
+
+
+
+	/**
+	 *    set_definitions
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function set_definitions()
+	{
+		if(defined('SPCO_BASE_PATH')) {
+			return;
+		}
+		define(
+			'SPCO_BASE_PATH',
+			rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS) . DS
+		);
+		define('SPCO_CSS_URL', plugin_dir_url(__FILE__) . 'css' . DS);
+		define('SPCO_IMG_URL', plugin_dir_url(__FILE__) . 'img' . DS);
+		define('SPCO_JS_URL', plugin_dir_url(__FILE__) . 'js' . DS);
+		define('SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS);
+		define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS);
+		define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS);
+		EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, true);
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice();
+	}
+
+
+
+	/**
+	 * load_reg_steps
+	 * loads and instantiates each reg step based on the EE_Registry::instance()->CFG->registration->reg_steps array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 */
+	public static function load_reg_steps()
+	{
+		static $reg_steps_loaded = false;
+		if ($reg_steps_loaded) {
+			return;
+		}
+		// filter list of reg_steps
+		$reg_steps_to_load = (array)apply_filters(
+			'AHEE__SPCO__load_reg_steps__reg_steps_to_load',
+			EED_Single_Page_Checkout::get_reg_steps()
+		);
+		// sort by key (order)
+		ksort($reg_steps_to_load);
+		// loop through folders
+		foreach ($reg_steps_to_load as $order => $reg_step) {
+			// we need a
+			if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
+				// copy over to the reg_steps_array
+				EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
+				// register custom key route for each reg step
+				// ie: step=>"slug" - this is the entire reason we load the reg steps array now
+				EE_Config::register_route(
+					$reg_step['slug'],
+					'EED_Single_Page_Checkout',
+					'run',
+					'step'
+				);
+				// add AJAX or other hooks
+				if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
+					// setup autoloaders if necessary
+					if ( ! class_exists($reg_step['class_name'])) {
+						EEH_Autoloader::register_autoloaders_for_each_file_in_folder(
+							$reg_step['file_path'],
+							true
+						);
+					}
+					if (is_callable($reg_step['class_name'], 'set_hooks')) {
+						call_user_func(array($reg_step['class_name'], 'set_hooks'));
+					}
+				}
+			}
+		}
+		$reg_steps_loaded = true;
+	}
+
+
+
+	/**
+	 *    get_reg_steps
+	 *
+	 * @access    public
+	 * @return    array
+	 */
+	public static function get_reg_steps()
+	{
+		$reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
+		if (empty($reg_steps)) {
+			$reg_steps = array(
+				10  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'attendee_information',
+					'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
+					'slug'       => 'attendee_information',
+					'has_hooks'  => false,
+				),
+				20  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'registration_confirmation',
+					'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
+					'slug'       => 'registration_confirmation',
+					'has_hooks'  => false,
+				),
+				30  => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'payment_options',
+					'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
+					'slug'       => 'payment_options',
+					'has_hooks'  => true,
+				),
+				999 => array(
+					'file_path'  => SPCO_REG_STEPS_PATH . 'finalize_registration',
+					'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
+					'slug'       => 'finalize_registration',
+					'has_hooks'  => false,
+				),
+			);
+		}
+		return $reg_steps;
+	}
+
+
+
+	/**
+	 *    registration_checkout_for_admin
+	 *
+	 * @access    public
+	 * @return    string
+	 * @throws EE_Error
+	 */
+	public static function registration_checkout_for_admin()
+	{
+		EED_Single_Page_Checkout::load_request_handler();
+		EE_Registry::instance()->REQ->set('step', 'attendee_information');
+		EE_Registry::instance()->REQ->set('action', 'display_spco_reg_step');
+		EE_Registry::instance()->REQ->set('process_form_submission', false);
+		EED_Single_Page_Checkout::instance()->_initialize();
+		EED_Single_Page_Checkout::instance()->_display_spco_reg_form();
+		return EE_Registry::instance()->REQ->get_output();
+	}
+
+
+
+	/**
+	 * process_registration_from_admin
+	 *
+	 * @access public
+	 * @return \EE_Transaction
+	 * @throws EE_Error
+	 */
+	public static function process_registration_from_admin()
+	{
+		EED_Single_Page_Checkout::load_request_handler();
+		EE_Registry::instance()->REQ->set('step', 'attendee_information');
+		EE_Registry::instance()->REQ->set('action', 'process_reg_step');
+		EE_Registry::instance()->REQ->set('process_form_submission', true);
+		EED_Single_Page_Checkout::instance()->_initialize();
+		if (EED_Single_Page_Checkout::instance()->checkout->current_step->completed()) {
+			$final_reg_step = end(EED_Single_Page_Checkout::instance()->checkout->reg_steps);
+			if ($final_reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
+				EED_Single_Page_Checkout::instance()->checkout->set_reg_step_initiated($final_reg_step);
+				if ($final_reg_step->process_reg_step()) {
+					$final_reg_step->set_completed();
+					EED_Single_Page_Checkout::instance()->checkout->update_txn_reg_steps_array();
+					return EED_Single_Page_Checkout::instance()->checkout->transaction;
+				}
+			}
+		}
+		return null;
+	}
+
+
+
+	/**
+	 *    run
+	 *
+	 * @access    public
+	 * @param WP_Query $WP_Query
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function run($WP_Query)
+	{
+		if (
+			$WP_Query instanceof WP_Query
+			&& $WP_Query->is_main_query()
+			&& apply_filters('FHEE__EED_Single_Page_Checkout__run', true)
+			&& $this->_is_reg_checkout()
+		) {
+			$this->_initialize();
+		}
+	}
+
+
+
+	/**
+	 * determines whether current url matches reg page url
+	 *
+	 * @return bool
+	 */
+	protected function _is_reg_checkout()
+	{
+		// get current permalink for reg page without any extra query args
+		$reg_page_url = \get_permalink(EE_Config::instance()->core->reg_page_id);
+		// get request URI for current request, but without the scheme or host
+		$current_request_uri = \EEH_URL::filter_input_server_url('REQUEST_URI');
+		$current_request_uri = html_entity_decode($current_request_uri);
+		// get array of query args from the current request URI
+		$query_args = \EEH_URL::get_query_string($current_request_uri);
+		// grab page id if it is set
+		$page_id = isset($query_args['page_id']) ? absint($query_args['page_id']) : 0;
+		// and remove the page id from the query args (we will re-add it later)
+		unset($query_args['page_id']);
+		// now strip all query args from current request URI
+		$current_request_uri = remove_query_arg(array_keys($query_args), $current_request_uri);
+		// and re-add the page id if it was set
+		if ($page_id) {
+			$current_request_uri = add_query_arg('page_id', $page_id, $current_request_uri);
+		}
+		// remove slashes and ?
+		$current_request_uri = trim($current_request_uri, '?/');
+		// is current request URI part of the known full reg page URL ?
+		return ! empty($current_request_uri) && strpos($reg_page_url, $current_request_uri) !== false;
+	}
+
+
+
+	/**
+	 * @param WP_Query $wp_query
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public static function init($wp_query)
+	{
+		EED_Single_Page_Checkout::instance()->run($wp_query);
+	}
+
+
+
+	/**
+	 *    _initialize - initial module setup
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    void
+	 */
+	private function _initialize()
+	{
+		// ensure SPCO doesn't run twice
+		if (EED_Single_Page_Checkout::$_initialized) {
+			return;
+		}
+		try {
+			EED_Single_Page_Checkout::load_reg_steps();
+			$this->_verify_session();
+			// setup the EE_Checkout object
+			$this->checkout = $this->_initialize_checkout();
+			// filter checkout
+			$this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
+			// get the $_GET
+			$this->_get_request_vars();
+			if ($this->_block_bots()) {
+				return;
+			}
+			// filter continue_reg
+			$this->checkout->continue_reg = apply_filters(
+				'FHEE__EED_Single_Page_Checkout__init___continue_reg',
+				true,
+				$this->checkout
+			);
+			// load the reg steps array
+			if ( ! $this->_load_and_instantiate_reg_steps()) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// set the current step
+			$this->checkout->set_current_step($this->checkout->step);
+			// and the next step
+			$this->checkout->set_next_step();
+			// verify that everything has been setup correctly
+			if ( ! ($this->_verify_transaction_and_get_registrations() && $this->_final_verifications())) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// lock the transaction
+			$this->checkout->transaction->lock();
+			// make sure all of our cached objects are added to their respective model entity mappers
+			$this->checkout->refresh_all_entities();
+			// set amount owing
+			$this->checkout->amount_owing = $this->checkout->transaction->remaining();
+			// initialize each reg step, which gives them the chance to potentially alter the process
+			$this->_initialize_reg_steps();
+			// DEBUG LOG
+			//$this->checkout->log( __CLASS__, __FUNCTION__, __LINE__ );
+			// get reg form
+			if( ! $this->_check_form_submission()) {
+				EED_Single_Page_Checkout::$_initialized = true;
+				return;
+			}
+			// checkout the action!!!
+			$this->_process_form_action();
+			// add some style and make it dance
+			$this->add_styles_and_scripts();
+			// kk... SPCO has successfully run
+			EED_Single_Page_Checkout::$_initialized = true;
+			// set no cache headers and constants
+			EE_System::do_not_cache();
+			// add anchor
+			add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
+			// remove transaction lock
+			add_action('shutdown', array($this, 'unlock_transaction'), 1);
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		}
+	}
+
+
+
+	/**
+	 *    _verify_session
+	 * checks that the session is valid and not expired
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 */
+	private function _verify_session()
+	{
+		if ( ! EE_Registry::instance()->SSN instanceof EE_Session) {
+			throw new EE_Error(__('The EE_Session class could not be loaded.', 'event_espresso'));
+		}
+		$clear_session_requested = filter_var(
+			EE_Registry::instance()->REQ->get('clear_session', false),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// is session still valid ?
+		if ($clear_session_requested
+			|| ( EE_Registry::instance()->SSN->expired()
+			  && EE_Registry::instance()->REQ->get('e_reg_url_link', '') === ''
+			)
+		) {
+			$this->checkout = new EE_Checkout();
+			EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+			// EE_Registry::instance()->SSN->reset_cart();
+			// EE_Registry::instance()->SSN->reset_checkout();
+			// EE_Registry::instance()->SSN->reset_transaction();
+			if (! $clear_session_requested) {
+				EE_Error::add_attention(
+					EE_Registry::$i18n_js_strings['registration_expiration_notice'],
+					__FILE__, __FUNCTION__, __LINE__
+				);
+			}
+			// EE_Registry::instance()->SSN->reset_expired();
+		}
+	}
+
+
+
+	/**
+	 *    _initialize_checkout
+	 * loads and instantiates EE_Checkout
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return EE_Checkout
+	 */
+	private function _initialize_checkout()
+	{
+		// look in session for existing checkout
+		/** @type EE_Checkout $checkout */
+		$checkout = EE_Registry::instance()->SSN->checkout();
+		// verify
+		if ( ! $checkout instanceof EE_Checkout) {
+			// instantiate EE_Checkout object for handling the properties of the current checkout process
+			$checkout = EE_Registry::instance()->load_file(
+				SPCO_INC_PATH,
+				'EE_Checkout',
+				'class', array(),
+				false
+			);
+		} else {
+			if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
+				$this->unlock_transaction();
+				wp_safe_redirect($checkout->redirect_url);
+				exit();
+			}
+		}
+		$checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
+		// verify again
+		if ( ! $checkout instanceof EE_Checkout) {
+			throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
+		}
+		// reset anything that needs a clean slate for each request
+		$checkout->reset_for_current_request();
+		return $checkout;
+	}
+
+
+
+	/**
+	 *    _get_request_vars
+	 *
+	 * @access    private
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	private function _get_request_vars()
+	{
+		// load classes
+		EED_Single_Page_Checkout::load_request_handler();
+		//make sure this request is marked as belonging to EE
+		EE_Registry::instance()->REQ->set_espresso_page(true);
+		// which step is being requested ?
+		$this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
+		// which step is being edited ?
+		$this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
+		// and what we're doing on the current step
+		$this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
+		// timestamp
+		$this->checkout->uts = EE_Registry::instance()->REQ->get('uts', 0);
+		// returning to edit ?
+		$this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
+		// add reg url link to registration query params
+		if ($this->checkout->reg_url_link && strpos($this->checkout->reg_url_link, '1-') !== 0) {
+			$this->checkout->reg_cache_where_params[0]['REG_url_link'] = $this->checkout->reg_url_link;
+		}
+		// or some other kind of revisit ?
+		$this->checkout->revisit = filter_var(
+			EE_Registry::instance()->REQ->get('revisit', false),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// and whether or not to generate a reg form for this request
+		$this->checkout->generate_reg_form = filter_var(
+			EE_Registry::instance()->REQ->get('generate_reg_form', true),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// and whether or not to process a reg form submission for this request
+		$this->checkout->process_form_submission = filter_var(
+			EE_Registry::instance()->REQ->get(
+				'process_form_submission',
+				$this->checkout->action === 'process_reg_step'
+			),
+			FILTER_VALIDATE_BOOLEAN
+		);
+		$this->checkout->process_form_submission = filter_var(
+			$this->checkout->action !== 'display_spco_reg_step'
+				? $this->checkout->process_form_submission
+				: false,
+			FILTER_VALIDATE_BOOLEAN
+		);
+		// $this->_display_request_vars();
+	}
+
+
+
+	/**
+	 *  _display_request_vars
+	 *
+	 * @access    protected
+	 * @return    void
+	 */
+	protected function _display_request_vars()
+	{
+		if ( ! WP_DEBUG) {
+			return;
+		}
+		EEH_Debug_Tools::printr($_REQUEST, '$_REQUEST', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->step, '$this->checkout->step', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->edit_step, '$this->checkout->edit_step', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->action, '$this->checkout->action', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->reg_url_link, '$this->checkout->reg_url_link', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->revisit, '$this->checkout->revisit', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->generate_reg_form, '$this->checkout->generate_reg_form', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->process_form_submission, '$this->checkout->process_form_submission', __FILE__, __LINE__);
+	}
+
+
+
+	/**
+	 * _block_bots
+	 * checks that the incoming request has either of the following set:
+	 *  a uts (unix timestamp) which indicates that the request was redirected from the Ticket Selector
+	 *  a REG URL Link, which indicates that the request is a return visit to SPCO for a valid TXN
+	 * so if you're not coming from the Ticket Selector nor returning for a valid IP...
+	 * then where you coming from man?
+	 *
+	 * @return boolean
+	 */
+	private function _block_bots()
+	{
+		$invalid_checkout_access = EED_Invalid_Checkout_Access::getInvalidCheckoutAccess();
+		if ($invalid_checkout_access->checkoutAccessIsInvalid($this->checkout)) {
+			return true;
+		}
+		return false;
+	}
+
+
+
+	/**
+	 *    _get_first_step
+	 *  gets slug for first step in $_reg_steps_array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    string
+	 */
+	private function _get_first_step()
+	{
+		$first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
+		return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
+	}
+
+
+
+	/**
+	 *    _load_and_instantiate_reg_steps
+	 *  instantiates each reg step based on the loaded reg_steps array
+	 *
+	 * @access    private
+	 * @throws EE_Error
+	 * @return    bool
+	 */
+	private function _load_and_instantiate_reg_steps()
+	{
+		do_action('AHEE__Single_Page_Checkout___load_and_instantiate_reg_steps__start', $this->checkout);
+		// have reg_steps already been instantiated ?
+		if (
+			empty($this->checkout->reg_steps)
+			|| apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
+		) {
+			// if not, then loop through raw reg steps array
+			foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
+				if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
+					return false;
+				}
+			}
+			EE_Registry::instance()->CFG->registration->skip_reg_confirmation = true;
+			EE_Registry::instance()->CFG->registration->reg_confirmation_last = true;
+			// skip the registration_confirmation page ?
+			if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
+				// just remove it from the reg steps array
+				$this->checkout->remove_reg_step('registration_confirmation', false);
+			} else if (
+				isset($this->checkout->reg_steps['registration_confirmation'])
+				&& EE_Registry::instance()->CFG->registration->reg_confirmation_last
+			) {
+				// set the order to something big like 100
+				$this->checkout->set_reg_step_order('registration_confirmation', 100);
+			}
+			// filter the array for good luck
+			$this->checkout->reg_steps = apply_filters(
+				'FHEE__Single_Page_Checkout__load_reg_steps__reg_steps',
+				$this->checkout->reg_steps
+			);
+			// finally re-sort based on the reg step class order properties
+			$this->checkout->sort_reg_steps();
+		} else {
+			foreach ($this->checkout->reg_steps as $reg_step) {
+				// set all current step stati to FALSE
+				$reg_step->set_is_current_step(false);
+			}
+		}
+		if (empty($this->checkout->reg_steps)) {
+			EE_Error::add_error(
+				__('No Reg Steps were loaded..', 'event_espresso'),
+				__FILE__, __FUNCTION__, __LINE__
+			);
+			return false;
+		}
+		// make reg step details available to JS
+		$this->checkout->set_reg_step_JSON_info();
+		return true;
+	}
+
+
+
+	/**
+	 *     _load_and_instantiate_reg_step
+	 *
+	 * @access    private
+	 * @param array $reg_step
+	 * @param int   $order
+	 * @return bool
+	 */
+	private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0)
+	{
+		// we need a file_path, class_name, and slug to add a reg step
+		if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
+			// if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
+			if (
+				$this->checkout->reg_url_link
+				&& $this->checkout->step !== $reg_step['slug']
+				&& $reg_step['slug'] !== 'finalize_registration'
+				// normally at this point we would NOT load the reg step, but this filter can change that
+				&& apply_filters(
+					'FHEE__Single_Page_Checkout___load_and_instantiate_reg_step__bypass_reg_step',
+					true,
+					$reg_step,
+					$this->checkout
+				)
+			) {
+				return true;
+			}
+			// instantiate step class using file path and class name
+			$reg_step_obj = EE_Registry::instance()->load_file(
+				$reg_step['file_path'],
+				$reg_step['class_name'],
+				'class',
+				$this->checkout,
+				false
+			);
+			// did we gets the goods ?
+			if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
+				// set reg step order based on config
+				$reg_step_obj->set_order($order);
+				// add instantiated reg step object to the master reg steps array
+				$this->checkout->add_reg_step($reg_step_obj);
+			} else {
+				EE_Error::add_error(
+					__('The current step could not be set.', 'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+				return false;
+			}
+		} else {
+			if (WP_DEBUG) {
+				EE_Error::add_error(
+					sprintf(
+						__(
+							'A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s',
+							'event_espresso'
+						),
+						isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
+						isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
+						isset($reg_step['slug']) ? $reg_step['slug'] : '',
+						'<ul>',
+						'<li>',
+						'</li>',
+						'</ul>'
+					),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+			}
+			return false;
+		}
+		return true;
+	}
+
+
+	/**
+	 * _verify_transaction_and_get_registrations
+	 *
+	 * @access private
+	 * @return bool
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidEntityException
+	 * @throws EE_Error
+	 */
+	private function _verify_transaction_and_get_registrations()
+	{
+		// was there already a valid transaction in the checkout from the session ?
+		if ( ! $this->checkout->transaction instanceof EE_Transaction) {
+			// get transaction from db or session
+			$this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
+				? $this->_get_transaction_and_cart_for_previous_visit()
+				: $this->_get_cart_for_current_session_and_setup_new_transaction();
+			if ( ! $this->checkout->transaction instanceof EE_Transaction) {
+				EE_Error::add_error(
+					__('Your Registration and Transaction information could not be retrieved from the db.',
+						'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+				$this->checkout->transaction = EE_Transaction::new_instance();
+				// add some style and make it dance
+				$this->add_styles_and_scripts();
+				EED_Single_Page_Checkout::$_initialized = true;
+				return false;
+			}
+			// and the registrations for the transaction
+			$this->_get_registrations($this->checkout->transaction);
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _get_transaction_and_cart_for_previous_visit
+	 *
+	 * @access private
+	 * @return mixed EE_Transaction|NULL
+	 */
+	private function _get_transaction_and_cart_for_previous_visit()
+	{
+		/** @var $TXN_model EEM_Transaction */
+		$TXN_model = EE_Registry::instance()->load_model('Transaction');
+		// because the reg_url_link is present in the request,
+		// this is a return visit to SPCO, so we'll get the transaction data from the db
+		$transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
+		// verify transaction
+		if ($transaction instanceof EE_Transaction) {
+			// and get the cart that was used for that transaction
+			$this->checkout->cart = $this->_get_cart_for_transaction($transaction);
+			return $transaction;
+		}
+		EE_Error::add_error(
+			__('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'),
+			__FILE__, __FUNCTION__, __LINE__
+		);
+		return null;
+
+	}
+
+
+
+	/**
+	 * _get_cart_for_transaction
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	private function _get_cart_for_transaction($transaction)
+	{
+		return $this->checkout->get_cart_for_transaction($transaction);
+	}
+
+
+
+	/**
+	 * get_cart_for_transaction
+	 *
+	 * @access public
+	 * @param EE_Transaction $transaction
+	 * @return EE_Cart
+	 */
+	public function get_cart_for_transaction(EE_Transaction $transaction)
+	{
+		return $this->checkout->get_cart_for_transaction($transaction);
+	}
+
+
+
+	/**
+	 * _get_transaction_and_cart_for_current_session
+	 *    generates a new EE_Transaction object and adds it to the $_transaction property.
+	 *
+	 * @access private
+	 * @return EE_Transaction
+	 * @throws EE_Error
+	 */
+	private function _get_cart_for_current_session_and_setup_new_transaction()
+	{
+		//  if there's no transaction, then this is the FIRST visit to SPCO
+		// so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
+		$this->checkout->cart = $this->_get_cart_for_transaction(null);
+		// and then create a new transaction
+		$transaction = $this->_initialize_transaction();
+		// verify transaction
+		if ($transaction instanceof EE_Transaction) {
+			// save it so that we have an ID for other objects to use
+			$transaction->save();
+			// and save TXN data to the cart
+			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
+		} else {
+			EE_Error::add_error(
+				__('A Valid Transaction could not be initialized.', 'event_espresso'),
+				__FILE__, __FUNCTION__, __LINE__
+			);
+		}
+		return $transaction;
+	}
+
+
+
+	/**
+	 *    generates a new EE_Transaction object and adds it to the $_transaction property.
+	 *
+	 * @access private
+	 * @return mixed EE_Transaction|NULL
+	 */
+	private function _initialize_transaction()
+	{
+		try {
+			// ensure cart totals have been calculated
+			$this->checkout->cart->get_grand_total()->recalculate_total_including_taxes();
+			// grab the cart grand total
+			$cart_total = $this->checkout->cart->get_cart_grand_total();
+			// create new TXN
+			$transaction = EE_Transaction::new_instance(
+				array(
+					'TXN_reg_steps' => $this->checkout->initialize_txn_reg_steps_array(),
+					'TXN_total'     => $cart_total > 0 ? $cart_total : 0,
+					'TXN_paid'      => 0,
+					'STS_ID'        => EEM_Transaction::failed_status_code,
+				)
+			);
+			// save it so that we have an ID for other objects to use
+			$transaction->save();
+			// set cron job for following up on TXNs after their session has expired
+			EE_Cron_Tasks::schedule_expired_transaction_check(
+				EE_Registry::instance()->SSN->expiration() + 1,
+				$transaction->ID()
+			);
+			return $transaction;
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		}
+		return null;
+	}
+
+
+	/**
+	 * _get_registrations
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return void
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidEntityException
+	 * @throws EE_Error
+	 */
+	private function _get_registrations(EE_Transaction $transaction)
+	{
+		// first step: grab the registrants  { : o
+		$registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
+		$this->checkout->total_ticket_count = count($registrations);
+		// verify registrations have been set
+		if (empty($registrations)) {
+			// if no cached registrations, then check the db
+			$registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
+			// still nothing ? well as long as this isn't a revisit
+			if (empty($registrations) && ! $this->checkout->revisit) {
+				// generate new registrations from scratch
+				$registrations = $this->_initialize_registrations($transaction);
+			}
+		}
+		// sort by their original registration order
+		usort($registrations, array('EED_Single_Page_Checkout', 'sort_registrations_by_REG_count'));
+		// then loop thru the array
+		foreach ($registrations as $registration) {
+			// verify each registration
+			if ($registration instanceof EE_Registration) {
+				// we display all attendee info for the primary registrant
+				if ($this->checkout->reg_url_link === $registration->reg_url_link()
+					&& $registration->is_primary_registrant()
+				) {
+					$this->checkout->primary_revisit = true;
+					break;
+				}
+				if ($this->checkout->revisit && $this->checkout->reg_url_link !== $registration->reg_url_link()) {
+					// but hide info if it doesn't belong to you
+					$transaction->clear_cache('Registration', $registration->ID());
+					$this->checkout->total_ticket_count--;
+				}
+				$this->checkout->set_reg_status_updated($registration->ID(), false);
+			}
+		}
+	}
+
+
+	/**
+	 *    adds related EE_Registration objects for each ticket in the cart to the current EE_Transaction object
+	 *
+	 * @access private
+	 * @param EE_Transaction $transaction
+	 * @return    array
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidEntityException
+	 * @throws EE_Error
+	 */
+	private function _initialize_registrations(EE_Transaction $transaction)
+	{
+		$att_nmbr = 0;
+		$registrations = array();
+		if ($transaction instanceof EE_Transaction) {
+			/** @type EE_Registration_Processor $registration_processor */
+			$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+			$this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
+			// now let's add the cart items to the $transaction
+			foreach ($this->checkout->cart->get_tickets() as $line_item) {
+				//do the following for each ticket of this type they selected
+				for ($x = 1; $x <= $line_item->quantity(); $x++) {
+					$att_nmbr++;
+					/** @var EventEspresso\core\services\commands\registration\CreateRegistrationCommand $CreateRegistrationCommand */
+					$CreateRegistrationCommand = EE_Registry::instance()->create(
+						'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
+						array(
+							$transaction,
+							$line_item,
+							$att_nmbr,
+							$this->checkout->total_ticket_count,
+						)
+					);
+					// override capabilities for frontend registrations
+					if ( ! is_admin()) {
+						$CreateRegistrationCommand->setCapCheck(
+							new PublicCapabilities('', 'create_new_registration')
+						);
+					}
+					$registration = EE_Registry::instance()->BUS->execute($CreateRegistrationCommand);
+					if ( ! $registration instanceof EE_Registration) {
+						throw new InvalidEntityException($registration, 'EE_Registration');
+					}
+					$registrations[ $registration->ID() ] = $registration;
+				}
+			}
+			$registration_processor->fix_reg_final_price_rounding_issue($transaction);
+		}
+		return $registrations;
+	}
+
+
+
+	/**
+	 * sorts registrations by REG_count
+	 *
+	 * @access public
+	 * @param EE_Registration $reg_A
+	 * @param EE_Registration $reg_B
+	 * @return int
+	 */
+	public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B)
+	{
+		// this shouldn't ever happen within the same TXN, but oh well
+		if ($reg_A->count() === $reg_B->count()) {
+			return 0;
+		}
+		return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
+	}
+
+
+
+	/**
+	 *    _final_verifications
+	 * just makes sure that everything is set up correctly before proceeding
+	 *
+	 * @access    private
+	 * @return    bool
+	 * @throws EE_Error
+	 */
+	private function _final_verifications()
+	{
+		// filter checkout
+		$this->checkout = apply_filters(
+			'FHEE__EED_Single_Page_Checkout___final_verifications__checkout',
+			$this->checkout
+		);
+		//verify that current step is still set correctly
+		if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
+			EE_Error::add_error(
+				__('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// if returning to SPCO, then verify that primary registrant is set
+		if ( ! empty($this->checkout->reg_url_link)) {
+			$valid_registrant = $this->checkout->transaction->primary_registration();
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				EE_Error::add_error(
+					__('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+			$valid_registrant = null;
+			foreach (
+				$this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration
+			) {
+				if (
+					$registration instanceof EE_Registration
+					&& $registration->reg_url_link() === $this->checkout->reg_url_link
+				) {
+					$valid_registrant = $registration;
+				}
+			}
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				// hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
+				if (EED_Single_Page_Checkout::$_checkout_verified) {
+					// clear the session, mark the checkout as unverified, and try again
+					EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+					EED_Single_Page_Checkout::$_initialized = false;
+					EED_Single_Page_Checkout::$_checkout_verified = false;
+					$this->_initialize();
+					EE_Error::reset_notices();
+					return false;
+				}
+				EE_Error::add_error(
+					__(
+						'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+		}
+		// now that things have been kinda sufficiently verified,
+		// let's add the checkout to the session so that it's available to other systems
+		EE_Registry::instance()->SSN->set_checkout($this->checkout);
+		return true;
+	}
+
+
+
+	/**
+	 *    _initialize_reg_steps
+	 * first makes sure that EE_Transaction_Processor::set_reg_step_initiated() is called as required
+	 * then loops thru all of the active reg steps and calls the initialize_reg_step() method
+	 *
+	 * @access    private
+	 * @param bool $reinitializing
+	 * @throws EE_Error
+	 */
+	private function _initialize_reg_steps($reinitializing = false)
+	{
+		$this->checkout->set_reg_step_initiated($this->checkout->current_step);
+		// loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
+		foreach ($this->checkout->reg_steps as $reg_step) {
+			if ( ! $reg_step->initialize_reg_step()) {
+				// if not initialized then maybe this step is being removed...
+				if ( ! $reinitializing && $reg_step->is_current_step()) {
+					// if it was the current step, then we need to start over here
+					$this->_initialize_reg_steps(true);
+					return;
+				}
+				continue;
+			}
+			// add css and JS for current step
+			$reg_step->enqueue_styles_and_scripts();
+			// i18n
+			$reg_step->translate_js_strings();
+			if ($reg_step->is_current_step()) {
+				// the text that appears on the reg step form submit button
+				$reg_step->set_submit_button_text();
+			}
+		}
+		// dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
+		do_action(
+			"AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}",
+			$this->checkout->current_step
+		);
+	}
+
+
+
+	/**
+	 * _check_form_submission
+	 *
+	 * @access private
+	 * @return boolean
+	 */
+	private function _check_form_submission()
+	{
+		//does this request require the reg form to be generated ?
+		if ($this->checkout->generate_reg_form) {
+			// ever heard that song by Blue Rodeo ?
+			try {
+				$this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
+				// if not displaying a form, then check for form submission
+				if (
+					$this->checkout->process_form_submission
+					&& $this->checkout->current_step->reg_form->was_submitted()
+				) {
+					// clear out any old data in case this step is being run again
+					$this->checkout->current_step->set_valid_data(array());
+					// capture submitted form data
+					$this->checkout->current_step->reg_form->receive_form_submission(
+						apply_filters(
+							'FHEE__Single_Page_Checkout___check_form_submission__request_params',
+							EE_Registry::instance()->REQ->params(),
+							$this->checkout
+						)
+					);
+					// validate submitted form data
+					if ( ! $this->checkout->continue_reg || ! $this->checkout->current_step->reg_form->is_valid()) {
+						// thou shall not pass !!!
+						$this->checkout->continue_reg = false;
+						// any form validation errors?
+						if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
+							EE_Error::add_error(
+								$this->checkout->current_step->reg_form->submission_error_message(),
+								__FILE__, __FUNCTION__, __LINE__
+							);
+						}
+						// well not really... what will happen is
+						// we'll just get redirected back to redo the current step
+						$this->go_to_next_step();
+						return false;
+					}
+				}
+			} catch (EE_Error $e) {
+				$e->get_error();
+			}
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * _process_action
+	 *
+	 * @access private
+	 * @return void
+	 * @throws EE_Error
+	 */
+	private function _process_form_action()
+	{
+		// what cha wanna do?
+		switch ($this->checkout->action) {
+			// AJAX next step reg form
+			case 'display_spco_reg_step' :
+				$this->checkout->redirect = false;
+				if (EE_Registry::instance()->REQ->ajax) {
+					$this->checkout->json_response->set_reg_step_html(
+						$this->checkout->current_step->display_reg_form()
+					);
+				}
+				break;
+			default :
+				// meh... do one of those other steps first
+				if (
+					! empty($this->checkout->action)
+					&& is_callable(array($this->checkout->current_step, $this->checkout->action))
+				) {
+					// dynamically creates hook point like:
+					//   AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
+					do_action(
+						"AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
+						$this->checkout->current_step
+					);
+					// call action on current step
+					if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
+						// good registrant, you get to proceed
+						if (
+							$this->checkout->current_step->success_message() !== ''
+							&& apply_filters(
+								'FHEE__Single_Page_Checkout___process_form_action__display_success',
+								false
+							)
+						) {
+							EE_Error::add_success(
+								$this->checkout->current_step->success_message()
+								. '<br />' . $this->checkout->next_step->_instructions()
+							);
+						}
+						// pack it up, pack it in...
+						$this->_setup_redirect();
+					}
+					// dynamically creates hook point like:
+					//  AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
+					do_action(
+						"AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}",
+						$this->checkout->current_step
+					);
+				} else {
+					EE_Error::add_error(
+						sprintf(
+							__(
+								'The requested form action "%s" does not exist for the current "%s" registration step.',
+								'event_espresso'
+							),
+							$this->checkout->action,
+							$this->checkout->current_step->name()
+						),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+				}
+			// end default
+		}
+		// store our progress so far
+		$this->checkout->stash_transaction_and_checkout();
+		// advance to the next step! If you pass GO, collect $200
+		$this->go_to_next_step();
+	}
+
+
+
+	/**
+	 *        add_styles_and_scripts
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public function add_styles_and_scripts()
+	{
+		// i18n
+		$this->translate_js_strings();
+		if ($this->checkout->admin_request) {
+			add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
+		} else {
+			add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
+		}
+	}
+
+
+
+	/**
+	 *        translate_js_strings
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public function translate_js_strings()
+	{
+		EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
+		EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
+		EE_Registry::$i18n_js_strings['server_error'] = __(
+			'An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_json_response'] = __(
+			'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['validation_error'] = __(
+			'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_payment_method'] = __(
+			'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['reg_step_error'] = __(
+			'This registration step could not be completed. Please refresh the page and try again.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['invalid_coupon'] = __(
+			'We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['process_registration'] = sprintf(
+			__(
+				'Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.',
+				'event_espresso'
+			),
+			'<br/>',
+			'<br/>'
+		);
+		EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
+		EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
+		EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
+		EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
+		EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
+		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = EED_Single_Page_Checkout::getRegistrationExpirationNotice();
+		EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters(
+			'FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit',
+			true
+		);
+		EE_Registry::$i18n_js_strings['session_extension'] = absint(
+			apply_filters('FHEE__EE_Session__extend_expiration__seconds_added', 10 * MINUTE_IN_SECONDS)
+		);
+		EE_Registry::$i18n_js_strings['session_expiration'] = gmdate(
+			'M d, Y H:i:s',
+			EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS)
+		);
+	}
+
+
+
+	/**
+	 *    enqueue_styles_and_scripts
+	 *
+	 * @access        public
+	 * @return        void
+	 * @throws EE_Error
+	 */
+	public function enqueue_styles_and_scripts()
+	{
+		// load css
+		wp_register_style(
+			'single_page_checkout',
+			SPCO_CSS_URL . 'single_page_checkout.css',
+			array('espresso_default'),
+			EVENT_ESPRESSO_VERSION
+		);
+		wp_enqueue_style('single_page_checkout');
+		// load JS
+		wp_register_script(
+			'jquery_plugin',
+			EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js',
+			array('jquery'),
+			'1.0.1',
+			true
+		);
+		wp_register_script(
+			'jquery_countdown',
+			EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js',
+			array('jquery_plugin'),
+			'2.0.2',
+			true
+		);
+		wp_register_script(
+			'single_page_checkout',
+			SPCO_JS_URL . 'single_page_checkout.js',
+			array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'),
+			EVENT_ESPRESSO_VERSION,
+			true
+		);
+		if ($this->checkout->registration_form instanceof EE_Form_Section_Proper) {
+			$this->checkout->registration_form->enqueue_js();
+		}
+		if ($this->checkout->current_step->reg_form instanceof EE_Form_Section_Proper) {
+			$this->checkout->current_step->reg_form->enqueue_js();
+		}
+		wp_enqueue_script('single_page_checkout');
+		/**
+		 * global action hook for enqueueing styles and scripts with
+		 * spco calls.
+		 */
+		do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
+		/**
+		 * dynamic action hook for enqueueing styles and scripts with spco calls.
+		 * The hook will end up being something like:
+		 *      AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
+		 */
+		do_action(
+			'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(),
+			$this
+		);
+	}
+
+
+
+	/**
+	 *    display the Registration Single Page Checkout Form
+	 *
+	 * @access    private
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	private function _display_spco_reg_form()
+	{
+		// if registering via the admin, just display the reg form for the current step
+		if ($this->checkout->admin_request) {
+			EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
+		} else {
+			// add powered by EE msg
+			add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
+			$empty_cart = count(
+				$this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)
+			) < 1;
+			EE_Registry::$i18n_js_strings['empty_cart'] = $empty_cart;
+			$cookies_not_set_msg = '';
+			if ($empty_cart) {
+				$cookies_not_set_msg = apply_filters(
+					'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
+					sprintf(
+						__(
+							'%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s',
+							'event_espresso'
+						),
+						'<div class="ee-attention hidden" id="ee-cookies-not-set-msg">',
+						'</div>',
+						'<h6 class="important-notice">',
+						'</h6>',
+						'<p>',
+						'</p>',
+						'<br />',
+						'<a href="http://www.whatarecookies.com/enable.asp" target="_blank">',
+						'</a>'
+					)
+				);
+			}
+			$this->checkout->registration_form = new EE_Form_Section_Proper(
+				array(
+					'name'            => 'single-page-checkout',
+					'html_id'         => 'ee-single-page-checkout-dv',
+					'layout_strategy' =>
+						new EE_Template_Layout(
+							array(
+								'layout_template_file' => SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
+								'template_args'        => array(
+									'empty_cart'              => $empty_cart,
+									'revisit'                 => $this->checkout->revisit,
+									'reg_steps'               => $this->checkout->reg_steps,
+									'next_step'               => $this->checkout->next_step instanceof EE_SPCO_Reg_Step
+										? $this->checkout->next_step->slug()
+										: '',
+									'empty_msg'               => apply_filters(
+										'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
+										sprintf(
+											__(
+												'You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.',
+												'event_espresso'
+											),
+											'<a href="'
+											. get_post_type_archive_link('espresso_events')
+											. '" title="',
+											'">',
+											'</a>'
+										)
+									),
+									'cookies_not_set_msg'     => $cookies_not_set_msg,
+									'registration_time_limit' => $this->checkout->get_registration_time_limit(),
+									'session_expiration'      => gmdate(
+										'M d, Y H:i:s',
+										EE_Registry::instance()->SSN->expiration()
+										+ (get_option('gmt_offset') * HOUR_IN_SECONDS)
+									),
+								),
+							)
+						),
+				)
+			);
+			// load template and add to output sent that gets filtered into the_content()
+			EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html());
+		}
+	}
+
+
+
+	/**
+	 *    add_extra_finalize_registration_inputs
+	 *
+	 * @access    public
+	 * @param $next_step
+	 * @internal  param string $label
+	 * @return void
+	 */
+	public function add_extra_finalize_registration_inputs($next_step)
+	{
+		if ($next_step === 'finalize_registration') {
+			echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
+		}
+	}
+
+
+
+	/**
+	 *    display_registration_footer
+	 *
+	 * @access    public
+	 * @return    string
+	 */
+	public static function display_registration_footer()
+	{
+		if (
+		apply_filters(
+			'FHEE__EE_Front__Controller__show_reg_footer',
+			EE_Registry::instance()->CFG->admin->show_reg_footer
+		)
+		) {
+			add_filter(
+				'FHEE__EEH_Template__powered_by_event_espresso__url',
+				function ($url) {
+					return apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
+				}
+			);
+			echo apply_filters(
+				'FHEE__EE_Front_Controller__display_registration_footer',
+				\EEH_Template::powered_by_event_espresso(
+					'',
+					'espresso-registration-footer-dv',
+					array('utm_content' => 'registration_checkout')
+				)
+			);
+		}
+		return '';
+	}
+
+
+
+	/**
+	 *    unlock_transaction
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws EE_Error
+	 */
+	public function unlock_transaction()
+	{
+		if ($this->checkout->transaction instanceof EE_Transaction) {
+			$this->checkout->transaction->unlock();
+		}
+	}
+
+
+
+	/**
+	 *        _setup_redirect
+	 *
+	 * @access    private
+	 * @return void
+	 */
+	private function _setup_redirect()
+	{
+		if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
+			$this->checkout->redirect = true;
+			if (empty($this->checkout->redirect_url)) {
+				$this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
+			}
+			$this->checkout->redirect_url = apply_filters(
+				'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url',
+				$this->checkout->redirect_url,
+				$this->checkout
+			);
+		}
+	}
+
+
+
+	/**
+	 *   handle ajax message responses and redirects
+	 *
+	 * @access public
+	 * @return void
+	 * @throws EE_Error
+	 */
+	public function go_to_next_step()
+	{
+		if (EE_Registry::instance()->REQ->ajax) {
+			// capture contents of output buffer we started earlier in the request, and insert into JSON response
+			$this->checkout->json_response->set_unexpected_errors(ob_get_clean());
+		}
+		$this->unlock_transaction();
+		// just return for these conditions
+		if (
+			$this->checkout->admin_request
+			|| $this->checkout->action === 'redirect_form'
+			|| $this->checkout->action === 'update_checkout'
+		) {
+			return;
+		}
+		// AJAX response
+		$this->_handle_json_response();
+		// redirect to next step or the Thank You page
+		$this->_handle_html_redirects();
+		// hmmm... must be something wrong, so let's just display the form again !
+		$this->_display_spco_reg_form();
+	}
+
+
+
+	/**
+	 *   _handle_json_response
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _handle_json_response()
+	{
+		// if this is an ajax request
+		if (EE_Registry::instance()->REQ->ajax) {
+			// DEBUG LOG
+			//$this->checkout->log(
+			//	__CLASS__, __FUNCTION__, __LINE__,
+			//	array(
+			//		'json_response_redirect_url' => $this->checkout->json_response->redirect_url(),
+			//		'redirect'                   => $this->checkout->redirect,
+			//		'continue_reg'               => $this->checkout->continue_reg,
+			//	)
+			//);
+			$this->checkout->json_response->set_registration_time_limit(
+				$this->checkout->get_registration_time_limit()
+			);
+			$this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
+			// just send the ajax (
+			$json_response = apply_filters(
+				'FHEE__EE_Single_Page_Checkout__JSON_response',
+				$this->checkout->json_response
+			);
+			echo $json_response;
+			exit();
+		}
+	}
+
+
+
+	/**
+	 *   _handle_redirects
+	 *
+	 * @access protected
+	 * @return void
+	 */
+	protected function _handle_html_redirects()
+	{
+		// going somewhere ?
+		if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
+			// store notices in a transient
+			EE_Error::get_notices(false, true, true);
+			// DEBUG LOG
+			//$this->checkout->log(
+			//	__CLASS__, __FUNCTION__, __LINE__,
+			//	array(
+			//		'headers_sent' => headers_sent(),
+			//		'redirect_url'     => $this->checkout->redirect_url,
+			//		'headers_list'    => headers_list(),
+			//	)
+			//);
+			wp_safe_redirect($this->checkout->redirect_url);
+			exit();
+		}
+	}
+
+
+
+	/**
+	 *   set_checkout_anchor
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function set_checkout_anchor()
+	{
+		echo '<a id="checkout" style="float: left; margin-left: -999em;"></a>';
+	}
+
+	/**
+	 *    getRegistrationExpirationNotice
+	 *
+	 * @since $VID:$
+	 * @access    public
+	 * @return    string
+	 */
+	public static function getRegistrationExpirationNotice()
+	{
+		return sprintf(
+			__('%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please accept our apologies for any inconvenience this may have caused.%8$s',
+				'event_espresso'),
+			'<h4 class="important-notice">',
+			'</h4>',
+			'<br />',
+			'<p>',
+			'<a href="' . get_post_type_archive_link('espresso_events') . '" title="',
+			'">',
+			'</a>',
+			'</p>'
+		);
+	}
 
 }
 // End of file EED_Single_Page_Checkout.module.php

modules/single_page_checkout/reg_steps/attendee_information/EE_SPCO_Reg_Step_Attendee_Information.class.php

Indentation +1335 added lines, -1335 removed lines

@@ -17,1343 +17,1343 @@
 class EE_SPCO_Reg_Step_Attendee_Information extends EE_SPCO_Reg_Step
 {
 
-    /**
-     * @type bool $_print_copy_info
-     */
-    private $_print_copy_info = false;
-
-    /**
-     * @type array $_attendee_data
-     */
-    private $_attendee_data = array();
-
-    /**
-     * @type array $_required_questions
-     */
-    private $_required_questions = array();
-
-    /**
-     * @type array $_registration_answers
-     */
-    private $_registration_answers = array();
-
-
-    /**
-     *    class constructor
-     *
-     * @access    public
-     * @param    EE_Checkout $checkout
-     */
-    public function __construct(EE_Checkout $checkout)
-    {
-        $this->_slug     = 'attendee_information';
-        $this->_name     = esc_html__('Attendee Information', 'event_espresso');
-        $this->_template = SPCO_REG_STEPS_PATH . $this->_slug . DS . 'attendee_info_main.template.php';
-        $this->checkout  = $checkout;
-        $this->_reset_success_message();
-        $this->set_instructions(
-            esc_html__('Please answer the following registration questions before proceeding.', 'event_espresso')
-        );
-    }
-
-
-    public function translate_js_strings()
-    {
-        EE_Registry::$i18n_js_strings['required_field']            = esc_html__(
-            ' is a required question.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['required_multi_field']      = esc_html__(
-            ' is a required question. Please enter a value for at least one of the options.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['answer_required_questions'] = esc_html__(
-            'Please answer all required questions correctly before proceeding.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['attendee_info_copied']      = sprintf(
-            esc_html__(
-                'The attendee information was successfully copied.%sPlease ensure the rest of the registration form is completed before proceeding.',
-                'event_espresso'
-            ),
-            '<br/>'
-        );
-        EE_Registry::$i18n_js_strings['attendee_info_copy_error']  = esc_html__(
-            'An unknown error occurred on the server while attempting to copy the attendee information. Please refresh the page and try again.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['enter_valid_email']         = esc_html__(
-            'You must enter a valid email address.',
-            'event_espresso'
-        );
-        EE_Registry::$i18n_js_strings['valid_email_and_questions'] = esc_html__(
-            'You must enter a valid email address and answer all other required questions before you can proceed.',
-            'event_espresso'
-        );
-    }
-
-
-    public function enqueue_styles_and_scripts()
-    {
-    }
-
-
-    /**
-     * @return boolean
-     */
-    public function initialize_reg_step()
-    {
-        return true;
-    }
-
-
-    /**
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function generate_reg_form()
-    {
-        $this->_print_copy_info = false;
-        $primary_registrant     = null;
-        // autoload Line_Item_Display classes
-        EEH_Autoloader::register_line_item_display_autoloaders();
-        $Line_Item_Display = new EE_Line_Item_Display();
-        // calculate taxes
-        $Line_Item_Display->display_line_item(
-            $this->checkout->cart->get_grand_total(),
-            array('set_tax_rate' => true)
-        );
-        /** @var $subsections EE_Form_Section_Proper[] */
-        $subsections   = array(
-            'default_hidden_inputs' => $this->reg_step_hidden_inputs(),
-        );
-        $template_args = array(
-            'revisit'       => $this->checkout->revisit,
-            'registrations' => array(),
-            'ticket_count'  => array(),
-        );
-        // grab the saved registrations from the transaction
-        $registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
-        if ($registrations) {
-            foreach ($registrations as $registration) {
-                // can this registration be processed during this visit ?
-                if ($registration instanceof EE_Registration
-                    && $this->checkout->visit_allows_processing_of_this_registration($registration)
-                ) {
-                    $subsections[$registration->reg_url_link()] = $this->_registrations_reg_form($registration);
-                    if (! $this->checkout->admin_request) {
-                        $template_args['registrations'][$registration->reg_url_link()]    = $registration;
-                        $template_args['ticket_count'][$registration->ticket()->ID()]     = isset(
-                            $template_args['ticket_count'][$registration->ticket()->ID()]
-                        )
-                            ? $template_args['ticket_count'][$registration->ticket()->ID()] + 1
-                            : 1;
-                        $ticket_line_item = EEH_Line_Item::get_line_items_by_object_type_and_IDs(
-                            $this->checkout->cart->get_grand_total(),
-                            'Ticket',
-                            array($registration->ticket()->ID())
-                        );
-                        $ticket_line_item = is_array($ticket_line_item)
-                            ? reset($ticket_line_item)
-                            : $ticket_line_item;
-                        $template_args['ticket_line_item'][$registration->ticket()->ID()] =
-                            $Line_Item_Display->display_line_item($ticket_line_item);
-                    }
-                    if ($registration->is_primary_registrant()) {
-                        $primary_registrant = $registration->reg_url_link();
-                    }
-                }
-            }
-            // print_copy_info ?
-            if ($primary_registrant && ! $this->checkout->admin_request && count($registrations) > 1) {
-                // TODO: add admin option for toggling copy attendee info,
-                // then use that value to change $this->_print_copy_info
-                $copy_options['spco_copy_attendee_chk'] = $this->_print_copy_info
-                    ? $this->_copy_attendee_info_form()
-                    : $this->_auto_copy_attendee_info();
-                // generate hidden input
-                if (isset($subsections[$primary_registrant])
-                    && $subsections[$primary_registrant] instanceof EE_Form_Section_Proper
-                ) {
-                    $subsections[$primary_registrant]->add_subsections(
-                        $copy_options,
-                        'primary_registrant',
-                        false
-                    );
-                }
-            }
-        }
-
-        return new EE_Form_Section_Proper(
-            array(
-                'name'            => $this->reg_form_name(),
-                'html_id'         => $this->reg_form_name(),
-                'subsections'     => $subsections,
-                'layout_strategy' => $this->checkout->admin_request ?
-                    new EE_Div_Per_Section_Layout() :
-                    new EE_Template_Layout(
-                        array(
-                            'layout_template_file' => $this->_template, // layout_template
-                            'template_args'        => $template_args,
-                        )
-                    ),
-            )
-        );
-    }
-
-
-    /**
-     * @param EE_Registration $registration
-     * @return EE_Form_Section_Base
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _registrations_reg_form(EE_Registration $registration)
-    {
-        static $attendee_nmbr = 1;
-        $form_args = array();
-        // verify that registration has valid event
-        if ($registration->event() instanceof EE_Event) {
-            $question_groups = $registration->event()->question_groups(
-                apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Attendee_Information___registrations_reg_form__question_groups_query_parameters',
-                    array(
-                        array(
-                            'Event.EVT_ID'                     => $registration->event()->ID(),
-                            'Event_Question_Group.EQG_primary' => $registration->count() === 1 ? true : false,
-                        ),
-                        'order_by' => array('QSG_order' => 'ASC'),
-                    ),
-                    $registration,
-                    $this
-                )
-            );
-            if ($question_groups) {
-                // array of params to pass to parent constructor
-                $form_args = array(
-                    'html_id'         => 'ee-registration-' . $registration->reg_url_link(),
-                    'html_class'      => 'ee-reg-form-attendee-dv',
-                    'html_style'      => $this->checkout->admin_request
-                        ? 'padding:0em 2em 1em; margin:3em 0 0; border:1px solid #ddd;'
-                        : '',
-                    'subsections'     => array(),
-                    'layout_strategy' => new EE_Fieldset_Section_Layout(
-                        array(
-                            'legend_class' => 'spco-attendee-lgnd smaller-text lt-grey-text',
-                            'legend_text'  => sprintf(__('Attendee %d', 'event_espresso'), $attendee_nmbr),
-                        )
-                    ),
-                );
-                foreach ($question_groups as $question_group) {
-                    if ($question_group instanceof EE_Question_Group) {
-                        $form_args['subsections'][$question_group->identifier()] = $this->_question_group_reg_form(
-                            $registration,
-                            $question_group
-                        );
-                    }
-                }
-                // add hidden input
-                $form_args['subsections']['additional_attendee_reg_info'] = $this->_additional_attendee_reg_info_input(
-                    $registration
-                );
-                // if we have question groups for additional attendees, then display the copy options
-                $this->_print_copy_info = $attendee_nmbr > 1 ? true : $this->_print_copy_info;
-                if ($registration->is_primary_registrant()) {
-                    // generate hidden input
-                    $form_args['subsections']['primary_registrant'] = $this->_additional_primary_registrant_inputs(
-                        $registration
-                    );
-                }
-            }
-        }
-        $attendee_nmbr++;
-        return ! empty($form_args) ? new EE_Form_Section_Proper($form_args) : new EE_Form_Section_HTML();
-    }
-
-
-    /**
-     * _additional_attendee_reg_info_input
-     *
-     * @access public
-     * @param EE_Registration $registration
-     * @param bool            $additional_attendee_reg_info
-     * @return    EE_Form_Input_Base
-     * @throws \EE_Error
-     */
-    private function _additional_attendee_reg_info_input(
-        EE_Registration $registration,
-        $additional_attendee_reg_info = true
-    ) {
-        // generate hidden input
-        return new EE_Hidden_Input(
-            array(
-                'html_id' => 'additional-attendee-reg-info-' . $registration->reg_url_link(),
-                'default' => $additional_attendee_reg_info,
-            )
-        );
-    }
-
-
-    /**
-     * @param EE_Registration   $registration
-     * @param EE_Question_Group $question_group
-     * @return EE_Form_Section_Proper
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _question_group_reg_form(EE_Registration $registration, EE_Question_Group $question_group)
-    {
-        // array of params to pass to parent constructor
-        $form_args = array(
-            'html_id'         => 'ee-reg-form-qstn-grp-' . $question_group->identifier() . '-' . $registration->ID(),
-            'html_class'      => $this->checkout->admin_request
-                ? 'form-table ee-reg-form-qstn-grp-dv'
-                : 'ee-reg-form-qstn-grp-dv',
-            'html_label_id'   => 'ee-reg-form-qstn-grp-' . $question_group->identifier() .  '-' . $registration->ID() . '-lbl',
-            'subsections'     => array(
-                'reg_form_qstn_grp_hdr' => $this->_question_group_header($question_group),
-            ),
-            'layout_strategy' => $this->checkout->admin_request
-                ? new EE_Admin_Two_Column_Layout()
-                : new EE_Div_Per_Section_Layout(),
-        );
-        // where params
-        $query_params = array('QST_deleted' => 0);
-        // don't load admin only questions on the frontend
-        if (! $this->checkout->admin_request) {
-            $query_params['QST_admin_only'] = array('!=', true);
-        }
-        $questions = $question_group->get_many_related(
-            'Question',
-            apply_filters(
-                'FHEE__EE_SPCO_Reg_Step_Attendee_Information___question_group_reg_form__related_questions_query_params',
-                array(
-                    $query_params,
-                    'order_by' => array(
-                        'Question_Group_Question.QGQ_order' => 'ASC',
-                    ),
-                ),
-                $question_group,
-                $registration,
-                $this
-            )
-        );
-        // filter for additional content before questions
-        $form_args['subsections']['reg_form_questions_before'] = new EE_Form_Section_HTML(
-            apply_filters(
-                'FHEE__EEH_Form_Fields__generate_question_groups_html__before_question_group_questions',
-                '',
-                $registration,
-                $question_group,
-                $this
-            )
-        );
-        // loop thru questions
-        foreach ($questions as $question) {
-            if ($question instanceof EE_Question) {
-                $identifier                            = $question->is_system_question()
-                    ? $question->system_ID()
-                    : $question->ID();
-                $form_args['subsections'][$identifier] = $this->reg_form_question($registration, $question);
-            }
-        }
-        $form_args['subsections'] = apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information__question_group_reg_form__subsections_array',
-            $form_args['subsections'],
-            $registration,
-            $question_group,
-            $this
-        );
-        // filter for additional content after questions
-        $form_args['subsections']['reg_form_questions_after'] = new EE_Form_Section_HTML(
-            apply_filters(
-                'FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions',
-                '',
-                $registration,
-                $question_group,
-                $this
-            )
-        );
+	/**
+	 * @type bool $_print_copy_info
+	 */
+	private $_print_copy_info = false;
+
+	/**
+	 * @type array $_attendee_data
+	 */
+	private $_attendee_data = array();
+
+	/**
+	 * @type array $_required_questions
+	 */
+	private $_required_questions = array();
+
+	/**
+	 * @type array $_registration_answers
+	 */
+	private $_registration_answers = array();
+
+
+	/**
+	 *    class constructor
+	 *
+	 * @access    public
+	 * @param    EE_Checkout $checkout
+	 */
+	public function __construct(EE_Checkout $checkout)
+	{
+		$this->_slug     = 'attendee_information';
+		$this->_name     = esc_html__('Attendee Information', 'event_espresso');
+		$this->_template = SPCO_REG_STEPS_PATH . $this->_slug . DS . 'attendee_info_main.template.php';
+		$this->checkout  = $checkout;
+		$this->_reset_success_message();
+		$this->set_instructions(
+			esc_html__('Please answer the following registration questions before proceeding.', 'event_espresso')
+		);
+	}
+
+
+	public function translate_js_strings()
+	{
+		EE_Registry::$i18n_js_strings['required_field']            = esc_html__(
+			' is a required question.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['required_multi_field']      = esc_html__(
+			' is a required question. Please enter a value for at least one of the options.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['answer_required_questions'] = esc_html__(
+			'Please answer all required questions correctly before proceeding.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['attendee_info_copied']      = sprintf(
+			esc_html__(
+				'The attendee information was successfully copied.%sPlease ensure the rest of the registration form is completed before proceeding.',
+				'event_espresso'
+			),
+			'<br/>'
+		);
+		EE_Registry::$i18n_js_strings['attendee_info_copy_error']  = esc_html__(
+			'An unknown error occurred on the server while attempting to copy the attendee information. Please refresh the page and try again.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['enter_valid_email']         = esc_html__(
+			'You must enter a valid email address.',
+			'event_espresso'
+		);
+		EE_Registry::$i18n_js_strings['valid_email_and_questions'] = esc_html__(
+			'You must enter a valid email address and answer all other required questions before you can proceed.',
+			'event_espresso'
+		);
+	}
+
+
+	public function enqueue_styles_and_scripts()
+	{
+	}
+
+
+	/**
+	 * @return boolean
+	 */
+	public function initialize_reg_step()
+	{
+		return true;
+	}
+
+
+	/**
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function generate_reg_form()
+	{
+		$this->_print_copy_info = false;
+		$primary_registrant     = null;
+		// autoload Line_Item_Display classes
+		EEH_Autoloader::register_line_item_display_autoloaders();
+		$Line_Item_Display = new EE_Line_Item_Display();
+		// calculate taxes
+		$Line_Item_Display->display_line_item(
+			$this->checkout->cart->get_grand_total(),
+			array('set_tax_rate' => true)
+		);
+		/** @var $subsections EE_Form_Section_Proper[] */
+		$subsections   = array(
+			'default_hidden_inputs' => $this->reg_step_hidden_inputs(),
+		);
+		$template_args = array(
+			'revisit'       => $this->checkout->revisit,
+			'registrations' => array(),
+			'ticket_count'  => array(),
+		);
+		// grab the saved registrations from the transaction
+		$registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
+		if ($registrations) {
+			foreach ($registrations as $registration) {
+				// can this registration be processed during this visit ?
+				if ($registration instanceof EE_Registration
+					&& $this->checkout->visit_allows_processing_of_this_registration($registration)
+				) {
+					$subsections[$registration->reg_url_link()] = $this->_registrations_reg_form($registration);
+					if (! $this->checkout->admin_request) {
+						$template_args['registrations'][$registration->reg_url_link()]    = $registration;
+						$template_args['ticket_count'][$registration->ticket()->ID()]     = isset(
+							$template_args['ticket_count'][$registration->ticket()->ID()]
+						)
+							? $template_args['ticket_count'][$registration->ticket()->ID()] + 1
+							: 1;
+						$ticket_line_item = EEH_Line_Item::get_line_items_by_object_type_and_IDs(
+							$this->checkout->cart->get_grand_total(),
+							'Ticket',
+							array($registration->ticket()->ID())
+						);
+						$ticket_line_item = is_array($ticket_line_item)
+							? reset($ticket_line_item)
+							: $ticket_line_item;
+						$template_args['ticket_line_item'][$registration->ticket()->ID()] =
+							$Line_Item_Display->display_line_item($ticket_line_item);
+					}
+					if ($registration->is_primary_registrant()) {
+						$primary_registrant = $registration->reg_url_link();
+					}
+				}
+			}
+			// print_copy_info ?
+			if ($primary_registrant && ! $this->checkout->admin_request && count($registrations) > 1) {
+				// TODO: add admin option for toggling copy attendee info,
+				// then use that value to change $this->_print_copy_info
+				$copy_options['spco_copy_attendee_chk'] = $this->_print_copy_info
+					? $this->_copy_attendee_info_form()
+					: $this->_auto_copy_attendee_info();
+				// generate hidden input
+				if (isset($subsections[$primary_registrant])
+					&& $subsections[$primary_registrant] instanceof EE_Form_Section_Proper
+				) {
+					$subsections[$primary_registrant]->add_subsections(
+						$copy_options,
+						'primary_registrant',
+						false
+					);
+				}
+			}
+		}
+
+		return new EE_Form_Section_Proper(
+			array(
+				'name'            => $this->reg_form_name(),
+				'html_id'         => $this->reg_form_name(),
+				'subsections'     => $subsections,
+				'layout_strategy' => $this->checkout->admin_request ?
+					new EE_Div_Per_Section_Layout() :
+					new EE_Template_Layout(
+						array(
+							'layout_template_file' => $this->_template, // layout_template
+							'template_args'        => $template_args,
+						)
+					),
+			)
+		);
+	}
+
+
+	/**
+	 * @param EE_Registration $registration
+	 * @return EE_Form_Section_Base
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _registrations_reg_form(EE_Registration $registration)
+	{
+		static $attendee_nmbr = 1;
+		$form_args = array();
+		// verify that registration has valid event
+		if ($registration->event() instanceof EE_Event) {
+			$question_groups = $registration->event()->question_groups(
+				apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Attendee_Information___registrations_reg_form__question_groups_query_parameters',
+					array(
+						array(
+							'Event.EVT_ID'                     => $registration->event()->ID(),
+							'Event_Question_Group.EQG_primary' => $registration->count() === 1 ? true : false,
+						),
+						'order_by' => array('QSG_order' => 'ASC'),
+					),
+					$registration,
+					$this
+				)
+			);
+			if ($question_groups) {
+				// array of params to pass to parent constructor
+				$form_args = array(
+					'html_id'         => 'ee-registration-' . $registration->reg_url_link(),
+					'html_class'      => 'ee-reg-form-attendee-dv',
+					'html_style'      => $this->checkout->admin_request
+						? 'padding:0em 2em 1em; margin:3em 0 0; border:1px solid #ddd;'
+						: '',
+					'subsections'     => array(),
+					'layout_strategy' => new EE_Fieldset_Section_Layout(
+						array(
+							'legend_class' => 'spco-attendee-lgnd smaller-text lt-grey-text',
+							'legend_text'  => sprintf(__('Attendee %d', 'event_espresso'), $attendee_nmbr),
+						)
+					),
+				);
+				foreach ($question_groups as $question_group) {
+					if ($question_group instanceof EE_Question_Group) {
+						$form_args['subsections'][$question_group->identifier()] = $this->_question_group_reg_form(
+							$registration,
+							$question_group
+						);
+					}
+				}
+				// add hidden input
+				$form_args['subsections']['additional_attendee_reg_info'] = $this->_additional_attendee_reg_info_input(
+					$registration
+				);
+				// if we have question groups for additional attendees, then display the copy options
+				$this->_print_copy_info = $attendee_nmbr > 1 ? true : $this->_print_copy_info;
+				if ($registration->is_primary_registrant()) {
+					// generate hidden input
+					$form_args['subsections']['primary_registrant'] = $this->_additional_primary_registrant_inputs(
+						$registration
+					);
+				}
+			}
+		}
+		$attendee_nmbr++;
+		return ! empty($form_args) ? new EE_Form_Section_Proper($form_args) : new EE_Form_Section_HTML();
+	}
+
+
+	/**
+	 * _additional_attendee_reg_info_input
+	 *
+	 * @access public
+	 * @param EE_Registration $registration
+	 * @param bool            $additional_attendee_reg_info
+	 * @return    EE_Form_Input_Base
+	 * @throws \EE_Error
+	 */
+	private function _additional_attendee_reg_info_input(
+		EE_Registration $registration,
+		$additional_attendee_reg_info = true
+	) {
+		// generate hidden input
+		return new EE_Hidden_Input(
+			array(
+				'html_id' => 'additional-attendee-reg-info-' . $registration->reg_url_link(),
+				'default' => $additional_attendee_reg_info,
+			)
+		);
+	}
+
+
+	/**
+	 * @param EE_Registration   $registration
+	 * @param EE_Question_Group $question_group
+	 * @return EE_Form_Section_Proper
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _question_group_reg_form(EE_Registration $registration, EE_Question_Group $question_group)
+	{
+		// array of params to pass to parent constructor
+		$form_args = array(
+			'html_id'         => 'ee-reg-form-qstn-grp-' . $question_group->identifier() . '-' . $registration->ID(),
+			'html_class'      => $this->checkout->admin_request
+				? 'form-table ee-reg-form-qstn-grp-dv'
+				: 'ee-reg-form-qstn-grp-dv',
+			'html_label_id'   => 'ee-reg-form-qstn-grp-' . $question_group->identifier() .  '-' . $registration->ID() . '-lbl',
+			'subsections'     => array(
+				'reg_form_qstn_grp_hdr' => $this->_question_group_header($question_group),
+			),
+			'layout_strategy' => $this->checkout->admin_request
+				? new EE_Admin_Two_Column_Layout()
+				: new EE_Div_Per_Section_Layout(),
+		);
+		// where params
+		$query_params = array('QST_deleted' => 0);
+		// don't load admin only questions on the frontend
+		if (! $this->checkout->admin_request) {
+			$query_params['QST_admin_only'] = array('!=', true);
+		}
+		$questions = $question_group->get_many_related(
+			'Question',
+			apply_filters(
+				'FHEE__EE_SPCO_Reg_Step_Attendee_Information___question_group_reg_form__related_questions_query_params',
+				array(
+					$query_params,
+					'order_by' => array(
+						'Question_Group_Question.QGQ_order' => 'ASC',
+					),
+				),
+				$question_group,
+				$registration,
+				$this
+			)
+		);
+		// filter for additional content before questions
+		$form_args['subsections']['reg_form_questions_before'] = new EE_Form_Section_HTML(
+			apply_filters(
+				'FHEE__EEH_Form_Fields__generate_question_groups_html__before_question_group_questions',
+				'',
+				$registration,
+				$question_group,
+				$this
+			)
+		);
+		// loop thru questions
+		foreach ($questions as $question) {
+			if ($question instanceof EE_Question) {
+				$identifier                            = $question->is_system_question()
+					? $question->system_ID()
+					: $question->ID();
+				$form_args['subsections'][$identifier] = $this->reg_form_question($registration, $question);
+			}
+		}
+		$form_args['subsections'] = apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information__question_group_reg_form__subsections_array',
+			$form_args['subsections'],
+			$registration,
+			$question_group,
+			$this
+		);
+		// filter for additional content after questions
+		$form_args['subsections']['reg_form_questions_after'] = new EE_Form_Section_HTML(
+			apply_filters(
+				'FHEE__EEH_Form_Fields__generate_question_groups_html__after_question_group_questions',
+				'',
+				$registration,
+				$question_group,
+				$this
+			)
+		);
 //		d( $form_args );
-        $question_group_reg_form = new EE_Form_Section_Proper($form_args);
-        return apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information___question_group_reg_form__question_group_reg_form',
-            $question_group_reg_form,
-            $registration,
-            $question_group,
-            $this
-        );
-    }
-
-
-    /**
-     * @access public
-     * @param EE_Question_Group $question_group
-     * @return    EE_Form_Section_HTML
-     */
-    private function _question_group_header(EE_Question_Group $question_group)
-    {
-        $html = '';
-        // group_name
-        if ($question_group->show_group_name() && $question_group->name() !== '') {
-            if ($this->checkout->admin_request) {
-                $html .= EEH_HTML::br();
-                $html .= EEH_HTML::h3(
-                    $question_group->name(),
-                    '',
-                    'ee-reg-form-qstn-grp-title title',
-                    'font-size: 1.3em; padding-left:0;'
-                );
-            } else {
-                $html .= EEH_HTML::h4(
-                    $question_group->name(),
-                    '',
-                    'ee-reg-form-qstn-grp-title section-title'
-                );
-            }
-        }
-        // group_desc
-        if ($question_group->show_group_desc() && $question_group->desc() !== '') {
-            $html .= EEH_HTML::p(
-                $question_group->desc(),
-                '',
-                $this->checkout->admin_request
-                    ? 'ee-reg-form-qstn-grp-desc-pg'
-                    : 'ee-reg-form-qstn-grp-desc-pg small-text lt-grey-text'
-            );
-        }
-        return new EE_Form_Section_HTML($html);
-    }
-
-
-    /**
-     * @access public
-     * @return    EE_Form_Section_Proper
-     * @throws \EE_Error
-     */
-    private function _copy_attendee_info_form()
-    {
-        // array of params to pass to parent constructor
-        return new EE_Form_Section_Proper(
-            array(
-                'subsections'     => $this->_copy_attendee_info_inputs(),
-                'layout_strategy' => new EE_Template_Layout(
-                    array(
-                        'layout_template_file'     => SPCO_REG_STEPS_PATH
-                                                      . $this->_slug
-                                                      . DS
-                                                      . 'copy_attendee_info.template.php',
-                        'begin_template_file'      => null,
-                        'input_template_file'      => null,
-                        'subsection_template_file' => null,
-                        'end_template_file'        => null,
-                    )
-                ),
-            )
-        );
-    }
-
-
-    /**
-     * _auto_copy_attendee_info
-     *
-     * @access public
-     * @return EE_Form_Section_HTML
-     */
-    private function _auto_copy_attendee_info()
-    {
-        return new EE_Form_Section_HTML(
-            EEH_Template::locate_template(
-                SPCO_REG_STEPS_PATH . $this->_slug . DS . '_auto_copy_attendee_info.template.php',
-                apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Attendee_Information__auto_copy_attendee_info__template_args',
-                    array()
-                ),
-                true,
-                true
-            )
-        );
-    }
-
-
-    /**
-     * _copy_attendee_info_inputs
-     *
-     * @access public
-     * @return array
-     * @throws \EE_Error
-     */
-    private function _copy_attendee_info_inputs()
-    {
-        $copy_attendee_info_inputs = array();
-        $prev_ticket               = null;
-        // grab the saved registrations from the transaction
-        $registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
-        foreach ($registrations as $registration) {
-            // for all  attendees other than the primary attendee
-            if ($registration instanceof EE_Registration && ! $registration->is_primary_registrant()) {
-                // if this is a new ticket OR if this is the very first additional attendee after the primary attendee
-                if ($registration->ticket()->ID() !== $prev_ticket) {
-                    $item_name = $registration->ticket()->name();
-                    $item_name .= $registration->ticket()->description() !== ''
-                        ? ' - ' . $registration->ticket()->description()
-                        : '';
-                    $copy_attendee_info_inputs['spco_copy_attendee_chk[ticket-' . $registration->ticket()->ID() . ']'] =
-                        new EE_Form_Section_HTML(
-                            '<h6 class="spco-copy-attendee-event-hdr">' . $item_name . '</h6>'
-                        );
-                    $prev_ticket = $registration->ticket()->ID();
-                }
-
-                $copy_attendee_info_inputs['spco_copy_attendee_chk[' . $registration->ID() . ']'] =
-                    new EE_Checkbox_Multi_Input(
-                        array(
-                            $registration->ID() => sprintf(
-                                esc_html__('Attendee #%s', 'event_espresso'),
-                                $registration->count()
-                            ),
-                        ),
-                        array(
-                            'html_id'                 => 'spco-copy-attendee-chk-' . $registration->reg_url_link(),
-                            'html_class'              => 'spco-copy-attendee-chk ee-do-not-validate',
-                            'display_html_label_text' => false,
-                        )
-                    );
-            }
-        }
-        return $copy_attendee_info_inputs;
-    }
-
-
-    /**
-     * _additional_primary_registrant_inputs
-     *
-     * @access public
-     * @param EE_Registration $registration
-     * @return    EE_Form_Input_Base
-     * @throws \EE_Error
-     */
-    private function _additional_primary_registrant_inputs(EE_Registration $registration)
-    {
-        // generate hidden input
-        return new EE_Hidden_Input(
-            array(
-                'html_id' => 'primary_registrant',
-                'default' => $registration->reg_url_link(),
-            )
-        );
-    }
-
-
-    /**
-     * @access public
-     * @param EE_Registration $registration
-     * @param EE_Question     $question
-     * @return EE_Form_Input_Base
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function reg_form_question(EE_Registration $registration, EE_Question $question)
-    {
-
-        // if this question was for an attendee detail, then check for that answer
-        $answer_value = EEM_Answer::instance()->get_attendee_property_answer_value(
-            $registration,
-            $question->system_ID()
-        );
-        $answer       = $answer_value === null
-            ? EEM_Answer::instance()->get_one(
-                array(array('QST_ID' => $question->ID(), 'REG_ID' => $registration->ID()))
-            )
-            : null;
-        // if NOT returning to edit an existing registration
-        // OR if this question is for an attendee property
-        // OR we still don't have an EE_Answer object
-        if ($answer_value || ! $answer instanceof EE_Answer || ! $registration->reg_url_link()) {
-            // create an EE_Answer object for storing everything in
-            $answer = EE_Answer::new_instance(array(
-                'QST_ID' => $question->ID(),
-                'REG_ID' => $registration->ID(),
-            ));
-        }
-        // verify instance
-        if ($answer instanceof EE_Answer) {
-            if (! empty($answer_value)) {
-                $answer->set('ANS_value', $answer_value);
-            }
-            $answer->cache('Question', $question);
-            //remember system ID had a bug where sometimes it could be null
-            $answer_cache_id = $question->is_system_question()
-                ? $question->system_ID() . '-' . $registration->reg_url_link()
-                : $question->ID() . '-' . $registration->reg_url_link();
-            $registration->cache('Answer', $answer, $answer_cache_id);
-        }
-        return $this->_generate_question_input($registration, $question, $answer);
-    }
-
-
-    /**
-     * @param EE_Registration $registration
-     * @param EE_Question     $question
-     * @param                 mixed EE_Answer|NULL      $answer
-     * @return EE_Form_Input_Base
-     * @throws \EE_Error
-     */
-    private function _generate_question_input(EE_Registration $registration, EE_Question $question, $answer)
-    {
-        $identifier                             = $question->is_system_question()
-            ? $question->system_ID()
-            : $question->ID();
-        $this->_required_questions[$identifier] = $question->required() ? true : false;
-        add_filter(
-            'FHEE__EE_Question__generate_form_input__country_options',
-            array($this, 'use_cached_countries_for_form_input'),
-            10,
-            4
-        );
-        add_filter(
-            'FHEE__EE_Question__generate_form_input__state_options',
-            array($this, 'use_cached_states_for_form_input'),
-            10,
-            4
-        );
-        $input_constructor_args                  = array(
-            'html_name'        => 'ee_reg_qstn[' . $registration->ID() . '][' . $identifier . ']',
-            'html_id'          => 'ee_reg_qstn-' . $registration->ID() . '-' . $identifier,
-            'html_class'       => 'ee-reg-qstn ee-reg-qstn-' . $identifier,
-            'html_label_id'    => 'ee_reg_qstn-' . $registration->ID() . '-' . $identifier,
-            'html_label_class' => 'ee-reg-qstn',
-        );
-        $input_constructor_args['html_label_id'] .= '-lbl';
-        if ($answer instanceof EE_Answer && $answer->ID()) {
-            $input_constructor_args['html_name']     .= '[' . $answer->ID() . ']';
-            $input_constructor_args['html_id']       .= '-' . $answer->ID();
-            $input_constructor_args['html_label_id'] .= '-' . $answer->ID();
-        }
-        $form_input = $question->generate_form_input(
-            $registration,
-            $answer,
-            $input_constructor_args
-        );
-        remove_filter(
-            'FHEE__EE_Question__generate_form_input__country_options',
-            array($this, 'use_cached_countries_for_form_input')
-        );
-        remove_filter(
-            'FHEE__EE_Question__generate_form_input__state_options',
-            array($this, 'use_cached_states_for_form_input')
-        );
-        return $form_input;
-    }
-
-
-    /**
-     * Gets the list of countries for the form input
-     *
-     * @param array|null       $countries_list
-     * @param \EE_Question     $question
-     * @param \EE_Registration $registration
-     * @param \EE_Answer       $answer
-     * @return array 2d keys are country IDs, values are their names
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function use_cached_countries_for_form_input(
-        $countries_list,
-        \EE_Question $question = null,
-        \EE_Registration $registration = null,
-        \EE_Answer $answer = null
-    ) {
-        $country_options = array('' => '');
-        // get possibly cached list of countries
-        $countries = $this->checkout->action === 'process_reg_step'
-            ? EEM_Country::instance()->get_all_countries()
-            : EEM_Country::instance()->get_all_active_countries();
-        if (! empty($countries)) {
-            foreach ($countries as $country) {
-                if ($country instanceof EE_Country) {
-                    $country_options[$country->ID()] = $country->name();
-                }
-            }
-        }
-        if ($question instanceof EE_Question
-            && $registration instanceof EE_Registration) {
-            $answer = EEM_Answer::instance()->get_one(
-                array(array('QST_ID' => $question->ID(), 'REG_ID' => $registration->ID()))
-            );
-        } else {
-            $answer = EE_Answer::new_instance();
-        }
-        $country_options = apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__country_options',
-            $country_options,
-            $this,
-            $registration,
-            $question,
-            $answer
-        );
-        return $country_options;
-    }
-
-
-    /**
-     * Gets the list of states for the form input
-     *
-     * @param array|null       $states_list
-     * @param \EE_Question     $question
-     * @param \EE_Registration $registration
-     * @param \EE_Answer       $answer
-     * @return array 2d keys are state IDs, values are their names
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function use_cached_states_for_form_input(
-        $states_list,
-        \EE_Question $question = null,
-        \EE_Registration $registration = null,
-        \EE_Answer $answer = null
-    ) {
-        $state_options = array('' => array('' => ''));
-        $states        = $this->checkout->action === 'process_reg_step'
-            ? EEM_State::instance()->get_all_states()
-            : EEM_State::instance()->get_all_active_states();
-        if (! empty($states)) {
-            foreach ($states as $state) {
-                if ($state instanceof EE_State) {
-                    $state_options[$state->country()->name()][$state->ID()] = $state->name();
-                }
-            }
-        }
-        $state_options = apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__state_options',
-            $state_options,
-            $this,
-            $registration,
-            $question,
-            $answer
-        );
-        return $state_options;
-    }
-
-
-
-
-
-
-    /********************************************************************************************************/
-    /****************************************  PROCESS REG STEP  ****************************************/
-    /********************************************************************************************************/
-    /**
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function process_reg_step()
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        // grab validated data from form
-        $valid_data = $this->checkout->current_step->valid_data();
-        // EEH_Debug_Tools::printr( $_REQUEST, '$_REQUEST', __FILE__, __LINE__ );
-        // EEH_Debug_Tools::printr( $valid_data, '$valid_data', __FILE__, __LINE__ );
-        // if we don't have any $valid_data then something went TERRIBLY WRONG !!!
-        if (empty($valid_data)) {
-            EE_Error::add_error(
-                esc_html__('No valid question responses were received.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        if (! $this->checkout->transaction instanceof EE_Transaction || ! $this->checkout->continue_reg) {
-            EE_Error::add_error(
-                esc_html__(
-                    'A valid transaction could not be initiated for processing your registrations.',
-                    'event_espresso'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // get cached registrations
-        $registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
-        // verify we got the goods
-        if (empty($registrations)) {
-            //combine the old translated string with a new one, in order to not break translations
-            $error_message = esc_html__( 'Your form data could not be applied to any valid registrations.', 'event_espresso' )
-                             . sprintf(
-                                 esc_html__('%3$sThis can sometimes happen if too much time has been taken to complete the registration process.%3$sPlease return to the %1$sEvent List%2$s and reselect your tickets. If the problem continues, please contact the site administrator.', 'event_espresso'),
-                                 '<a href="' . get_post_type_archive_link('espresso_events') . '" >',
-                                 '</a>',
-                                 '<br />'
-                             );
-            EE_Error::add_error(
-                $error_message,
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // extract attendee info from form data and save to model objects
-        $registrations_processed = $this->_process_registrations($registrations, $valid_data);
-        // if first pass thru SPCO,
-        // then let's check processed registrations against the total number of tickets in the cart
-        if ($registrations_processed === false) {
-            // but return immediately if the previous step exited early due to errors
-            return false;
-        } elseif (! $this->checkout->revisit && $registrations_processed !== $this->checkout->total_ticket_count) {
-            // generate a correctly translated string for all possible singular/plural combinations
-            if ($this->checkout->total_ticket_count === 1 && $registrations_processed !== 1) {
-                $error_msg = sprintf(
-                    esc_html__(
-                        'There was %1$d ticket in the Event Queue, but %2$ds registrations were processed',
-                        'event_espresso'
-                    ),
-                    $this->checkout->total_ticket_count,
-                    $registrations_processed
-                );
-            } elseif ($this->checkout->total_ticket_count !== 1 && $registrations_processed === 1) {
-                $error_msg = sprintf(
-                    esc_html__(
-                        'There was a total of %1$d tickets in the Event Queue, but only %2$ds registration was processed',
-                        'event_espresso'
-                    ),
-                    $this->checkout->total_ticket_count,
-                    $registrations_processed
-                );
-            } else {
-                $error_msg = sprintf(
-                    esc_html__(
-                        'There was a total of %1$d tickets in the Event Queue, but %2$ds registrations were processed',
-                        'event_espresso'
-                    ),
-                    $this->checkout->total_ticket_count,
-                    $registrations_processed
-                );
-            }
-            EE_Error::add_error($error_msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        // mark this reg step as completed
-        $this->set_completed();
-        $this->_set_success_message(
-            esc_html__('The Attendee Information Step has been successfully completed.', 'event_espresso')
-        );
-        //do action in case a plugin wants to do something with the data submitted in step 1.
-        //passes EE_Single_Page_Checkout, and it's posted data
-        do_action('AHEE__EE_Single_Page_Checkout__process_attendee_information__end', $this, $valid_data);
-        return true;
-    }
-
-
-    /**
-     *    _process_registrations
-     *
-     * @param EE_Registration[] $registrations
-     * @param array             $valid_data
-     * @return bool|int
-     * @throws \EventEspresso\core\exceptions\EntityNotFoundException
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _process_registrations($registrations = array(), $valid_data = array())
-    {
-        // load resources and set some defaults
-        EE_Registry::instance()->load_model('Attendee');
-        // holder for primary registrant attendee object
-        $this->checkout->primary_attendee_obj = null;
-        // array for tracking reg form data for the primary registrant
-        $primary_registrant = array(
-            'line_item_id' => null,
-        );
-        $copy_primary       = false;
-        // reg form sections that do not contain inputs
-        $non_input_form_sections = array(
-            'primary_registrant',
-            'additional_attendee_reg_info',
-            'spco_copy_attendee_chk',
-        );
-        // attendee counter
-        $att_nmbr = 0;
-        // grab the saved registrations from the transaction
-        foreach ($registrations as $registration) {
-            // verify EE_Registration object
-            if (! $registration instanceof EE_Registration) {
-                EE_Error::add_error(
-                    esc_html__(
-                        'An invalid Registration object was discovered when attempting to process your registration information.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                return false;
-            }
-            /** @var string $reg_url_link */
-            $reg_url_link = $registration->reg_url_link();
-            // reg_url_link exists ?
-            if (! empty($reg_url_link)) {
-                // should this registration be processed during this visit ?
-                if ($this->checkout->visit_allows_processing_of_this_registration($registration)) {
-                    // if NOT revisiting, then let's save the registration now,
-                    // so that we have a REG_ID to use when generating other objects
-                    if (! $this->checkout->revisit) {
-                        $registration->save();
-                    }
-                    /**
-                     * This allows plugins to trigger a fail on processing of a
-                     * registration for any conditions they may have for it to pass.
-                     *
-                     * @var bool   if true is returned by the plugin then the
-                     *            registration processing is halted.
-                     */
-                    if (apply_filters(
-                        'FHEE__EE_SPCO_Reg_Step_Attendee_Information___process_registrations__pre_registration_process',
-                        false,
-                        $att_nmbr,
-                        $registration,
-                        $registrations,
-                        $valid_data,
-                        $this
-                    )) {
-                        return false;
-                    }
-
-                    // Houston, we have a registration!
-                    $att_nmbr++;
-                    $this->_attendee_data[$reg_url_link] = array();
-                    // grab any existing related answer objects
-                    $this->_registration_answers = $registration->answers();
-                    // unset( $valid_data[ $reg_url_link ]['additional_attendee_reg_info'] );
-                    if (isset($valid_data[$reg_url_link])) {
-                        // do we need to copy basic info from primary attendee ?
-                        $copy_primary = isset($valid_data[$reg_url_link]['additional_attendee_reg_info'])
-                                        && absint($valid_data[$reg_url_link]['additional_attendee_reg_info']) === 0
-                            ? true
-                            : false;
-                        // filter form input data for this registration
-                        $valid_data[$reg_url_link] = (array)apply_filters(
-                            'FHEE__EE_Single_Page_Checkout__process_attendee_information__valid_data_line_item',
-                            $valid_data[$reg_url_link]
-                        );
-                        if (isset($valid_data['primary_attendee'])) {
-                            $primary_registrant['line_item_id'] = ! empty($valid_data['primary_attendee'])
-                                ? $valid_data['primary_attendee']
-                                : false;
-                            unset($valid_data['primary_attendee']);
-                        }
-                        // now loop through our array of valid post data && process attendee reg forms
-                        foreach ($valid_data[$reg_url_link] as $form_section => $form_inputs) {
-                            if (! in_array($form_section, $non_input_form_sections)) {
-                                foreach ($form_inputs as $form_input => $input_value) {
-                                    // \EEH_Debug_Tools::printr( $input_value, $form_input, __FILE__, __LINE__ );
-                                    // check for critical inputs
-                                    if (! $this->_verify_critical_attendee_details_are_set_and_validate_email(
-                                        $form_input,
-                                        $input_value
-                                    )
-                                    ) {
-                                        return false;
-                                    }
-                                    // store a bit of data about the primary attendee
-                                    if ($att_nmbr === 1
-                                        && ! empty($input_value)
-                                        && $reg_url_link === $primary_registrant['line_item_id']
-                                    ) {
-                                        $primary_registrant[$form_input] = $input_value;
-                                    } elseif ($copy_primary
-                                        && $input_value === null
-                                        && isset($primary_registrant[$form_input])
-                                    ) {
-                                        $input_value = $primary_registrant[$form_input];
-                                    }
-                                    // now attempt to save the input data
-                                    if (! $this->_save_registration_form_input(
-                                        $registration,
-                                        $form_input,
-                                        $input_value
-                                    )
-                                    ) {
-                                        EE_Error::add_error(
-                                            sprintf(
-                                                esc_html__(
-                                                    'Unable to save registration form data for the form input: "%1$s" with the submitted value: "%2$s"',
-                                                    'event_espresso'
-                                                ),
-                                                $form_input,
-                                                $input_value
-                                            ),
-                                            __FILE__,
-                                            __FUNCTION__,
-                                            __LINE__
-                                        );
-                                        return false;
-                                    }
-                                }
-                            }
-                        }  // end of foreach ( $valid_data[ $reg_url_link ] as $form_section => $form_inputs )
-                    }
-                    //EEH_Debug_Tools::printr( $this->_attendee_data, '$this->_attendee_data', __FILE__, __LINE__ );
-                    // this registration does not require additional attendee information ?
-                    if ($copy_primary
-                        && $att_nmbr > 1
-                        && $this->checkout->primary_attendee_obj instanceof EE_Attendee
-                    ) {
-                        // just copy the primary registrant
-                        $attendee = $this->checkout->primary_attendee_obj;
-                    } else {
-                        // ensure critical details are set for additional attendees
-                        $this->_attendee_data[$reg_url_link] = $att_nmbr > 1
-                            ? $this->_copy_critical_attendee_details_from_primary_registrant(
-                                $this->_attendee_data[$reg_url_link]
-                            )
-                            : $this->_attendee_data[$reg_url_link];
-                        // execute create attendee command (which may return an existing attendee)
-                        $attendee = EE_Registry::instance()->BUS->execute(
-                            new CreateAttendeeCommand(
-                                $this->_attendee_data[$reg_url_link],
-                                $registration
-                            )
-                        );
-                        // who's #1 ?
-                        if ($att_nmbr === 1) {
-                            $this->checkout->primary_attendee_obj = $attendee;
-                        }
-                    }
-                    // EEH_Debug_Tools::printr( $attendee, '$attendee', __FILE__, __LINE__ );
-                    // add relation to registration, set attendee ID, and cache attendee
-                    $this->_associate_attendee_with_registration($registration, $attendee);
-                    // \EEH_Debug_Tools::printr( $registration, '$registration', __FILE__, __LINE__ );
-                    if (! $registration->attendee() instanceof EE_Attendee) {
-                        EE_Error::add_error(
-                            sprintf(
-                                esc_html__(
-                                    'Registration %s has an invalid or missing Attendee object.',
-                                    'event_espresso'
-                                ),
-                                $reg_url_link
-                            ),
-                            __FILE__,
-                            __FUNCTION__,
-                            __LINE__
-                        );
-                        return false;
-                    }
-                    /** @type EE_Registration_Processor $registration_processor */
-                    $registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
-                    // at this point, we should have enough details about the registrant to consider the registration
-                    // NOT incomplete
-                    $registration_processor->toggle_incomplete_registration_status_to_default(
-                        $registration,
-                        false,
-                        new Context(
-                            'spco_reg_step_attendee_information_process_registrations',
-                            esc_html__(
-                                'Finished populating registration with details from the registration form after submitting the Attendee Information Reg Step.',
-                                'event_espresso'
-                            )
-                        )
-                    );
-                    // we can also consider the TXN to not have been failed, so temporarily upgrade it's status to
-                    // abandoned
-                    $this->checkout->transaction->toggle_failed_transaction_status();
-                    // if we've gotten this far, then let's save what we have
-                    $registration->save();
-                    // add relation between TXN and registration
-                    $this->_associate_registration_with_transaction($registration);
-                }
-            } else {
-                EE_Error::add_error(
-                    esc_html__(
-                        'An invalid or missing line item ID was encountered while attempting to process the registration form.',
-                        'event_espresso'
-                    ),
-                    __FILE__,
-                    __FUNCTION__,
-                    __LINE__
-                );
-                // remove malformed data
-                unset($valid_data[$reg_url_link]);
-                return false;
-            }
-
-        } // end of foreach ( $this->checkout->transaction->registrations()  as $registration )
-        return $att_nmbr;
-    }
-
-
-    /**
-     *    _save_registration_form_input
-     *
-     * @param EE_Registration $registration
-     * @param string          $form_input
-     * @param string          $input_value
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    private function _save_registration_form_input(
-        EE_Registration $registration,
-        $form_input = '',
-        $input_value = ''
-    ) {
-        // \EEH_Debug_Tools::printr( __FUNCTION__, __CLASS__, __FILE__, __LINE__, 2 );
-        // \EEH_Debug_Tools::printr( $form_input, '$form_input', __FILE__, __LINE__ );
-        // \EEH_Debug_Tools::printr( $input_value, '$input_value', __FILE__, __LINE__ );
-        // allow for plugins to hook in and do their own processing of the form input.
-        // For plugins to bypass normal processing here, they just need to return a boolean value.
-        if (apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information___save_registration_form_input',
-            false,
-            $registration,
-            $form_input,
-            $input_value,
-            $this
-        )) {
-            return true;
-        }
-        /*
+		$question_group_reg_form = new EE_Form_Section_Proper($form_args);
+		return apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information___question_group_reg_form__question_group_reg_form',
+			$question_group_reg_form,
+			$registration,
+			$question_group,
+			$this
+		);
+	}
+
+
+	/**
+	 * @access public
+	 * @param EE_Question_Group $question_group
+	 * @return    EE_Form_Section_HTML
+	 */
+	private function _question_group_header(EE_Question_Group $question_group)
+	{
+		$html = '';
+		// group_name
+		if ($question_group->show_group_name() && $question_group->name() !== '') {
+			if ($this->checkout->admin_request) {
+				$html .= EEH_HTML::br();
+				$html .= EEH_HTML::h3(
+					$question_group->name(),
+					'',
+					'ee-reg-form-qstn-grp-title title',
+					'font-size: 1.3em; padding-left:0;'
+				);
+			} else {
+				$html .= EEH_HTML::h4(
+					$question_group->name(),
+					'',
+					'ee-reg-form-qstn-grp-title section-title'
+				);
+			}
+		}
+		// group_desc
+		if ($question_group->show_group_desc() && $question_group->desc() !== '') {
+			$html .= EEH_HTML::p(
+				$question_group->desc(),
+				'',
+				$this->checkout->admin_request
+					? 'ee-reg-form-qstn-grp-desc-pg'
+					: 'ee-reg-form-qstn-grp-desc-pg small-text lt-grey-text'
+			);
+		}
+		return new EE_Form_Section_HTML($html);
+	}
+
+
+	/**
+	 * @access public
+	 * @return    EE_Form_Section_Proper
+	 * @throws \EE_Error
+	 */
+	private function _copy_attendee_info_form()
+	{
+		// array of params to pass to parent constructor
+		return new EE_Form_Section_Proper(
+			array(
+				'subsections'     => $this->_copy_attendee_info_inputs(),
+				'layout_strategy' => new EE_Template_Layout(
+					array(
+						'layout_template_file'     => SPCO_REG_STEPS_PATH
+													  . $this->_slug
+													  . DS
+													  . 'copy_attendee_info.template.php',
+						'begin_template_file'      => null,
+						'input_template_file'      => null,
+						'subsection_template_file' => null,
+						'end_template_file'        => null,
+					)
+				),
+			)
+		);
+	}
+
+
+	/**
+	 * _auto_copy_attendee_info
+	 *
+	 * @access public
+	 * @return EE_Form_Section_HTML
+	 */
+	private function _auto_copy_attendee_info()
+	{
+		return new EE_Form_Section_HTML(
+			EEH_Template::locate_template(
+				SPCO_REG_STEPS_PATH . $this->_slug . DS . '_auto_copy_attendee_info.template.php',
+				apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Attendee_Information__auto_copy_attendee_info__template_args',
+					array()
+				),
+				true,
+				true
+			)
+		);
+	}
+
+
+	/**
+	 * _copy_attendee_info_inputs
+	 *
+	 * @access public
+	 * @return array
+	 * @throws \EE_Error
+	 */
+	private function _copy_attendee_info_inputs()
+	{
+		$copy_attendee_info_inputs = array();
+		$prev_ticket               = null;
+		// grab the saved registrations from the transaction
+		$registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
+		foreach ($registrations as $registration) {
+			// for all  attendees other than the primary attendee
+			if ($registration instanceof EE_Registration && ! $registration->is_primary_registrant()) {
+				// if this is a new ticket OR if this is the very first additional attendee after the primary attendee
+				if ($registration->ticket()->ID() !== $prev_ticket) {
+					$item_name = $registration->ticket()->name();
+					$item_name .= $registration->ticket()->description() !== ''
+						? ' - ' . $registration->ticket()->description()
+						: '';
+					$copy_attendee_info_inputs['spco_copy_attendee_chk[ticket-' . $registration->ticket()->ID() . ']'] =
+						new EE_Form_Section_HTML(
+							'<h6 class="spco-copy-attendee-event-hdr">' . $item_name . '</h6>'
+						);
+					$prev_ticket = $registration->ticket()->ID();
+				}
+
+				$copy_attendee_info_inputs['spco_copy_attendee_chk[' . $registration->ID() . ']'] =
+					new EE_Checkbox_Multi_Input(
+						array(
+							$registration->ID() => sprintf(
+								esc_html__('Attendee #%s', 'event_espresso'),
+								$registration->count()
+							),
+						),
+						array(
+							'html_id'                 => 'spco-copy-attendee-chk-' . $registration->reg_url_link(),
+							'html_class'              => 'spco-copy-attendee-chk ee-do-not-validate',
+							'display_html_label_text' => false,
+						)
+					);
+			}
+		}
+		return $copy_attendee_info_inputs;
+	}
+
+
+	/**
+	 * _additional_primary_registrant_inputs
+	 *
+	 * @access public
+	 * @param EE_Registration $registration
+	 * @return    EE_Form_Input_Base
+	 * @throws \EE_Error
+	 */
+	private function _additional_primary_registrant_inputs(EE_Registration $registration)
+	{
+		// generate hidden input
+		return new EE_Hidden_Input(
+			array(
+				'html_id' => 'primary_registrant',
+				'default' => $registration->reg_url_link(),
+			)
+		);
+	}
+
+
+	/**
+	 * @access public
+	 * @param EE_Registration $registration
+	 * @param EE_Question     $question
+	 * @return EE_Form_Input_Base
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function reg_form_question(EE_Registration $registration, EE_Question $question)
+	{
+
+		// if this question was for an attendee detail, then check for that answer
+		$answer_value = EEM_Answer::instance()->get_attendee_property_answer_value(
+			$registration,
+			$question->system_ID()
+		);
+		$answer       = $answer_value === null
+			? EEM_Answer::instance()->get_one(
+				array(array('QST_ID' => $question->ID(), 'REG_ID' => $registration->ID()))
+			)
+			: null;
+		// if NOT returning to edit an existing registration
+		// OR if this question is for an attendee property
+		// OR we still don't have an EE_Answer object
+		if ($answer_value || ! $answer instanceof EE_Answer || ! $registration->reg_url_link()) {
+			// create an EE_Answer object for storing everything in
+			$answer = EE_Answer::new_instance(array(
+				'QST_ID' => $question->ID(),
+				'REG_ID' => $registration->ID(),
+			));
+		}
+		// verify instance
+		if ($answer instanceof EE_Answer) {
+			if (! empty($answer_value)) {
+				$answer->set('ANS_value', $answer_value);
+			}
+			$answer->cache('Question', $question);
+			//remember system ID had a bug where sometimes it could be null
+			$answer_cache_id = $question->is_system_question()
+				? $question->system_ID() . '-' . $registration->reg_url_link()
+				: $question->ID() . '-' . $registration->reg_url_link();
+			$registration->cache('Answer', $answer, $answer_cache_id);
+		}
+		return $this->_generate_question_input($registration, $question, $answer);
+	}
+
+
+	/**
+	 * @param EE_Registration $registration
+	 * @param EE_Question     $question
+	 * @param                 mixed EE_Answer|NULL      $answer
+	 * @return EE_Form_Input_Base
+	 * @throws \EE_Error
+	 */
+	private function _generate_question_input(EE_Registration $registration, EE_Question $question, $answer)
+	{
+		$identifier                             = $question->is_system_question()
+			? $question->system_ID()
+			: $question->ID();
+		$this->_required_questions[$identifier] = $question->required() ? true : false;
+		add_filter(
+			'FHEE__EE_Question__generate_form_input__country_options',
+			array($this, 'use_cached_countries_for_form_input'),
+			10,
+			4
+		);
+		add_filter(
+			'FHEE__EE_Question__generate_form_input__state_options',
+			array($this, 'use_cached_states_for_form_input'),
+			10,
+			4
+		);
+		$input_constructor_args                  = array(
+			'html_name'        => 'ee_reg_qstn[' . $registration->ID() . '][' . $identifier . ']',
+			'html_id'          => 'ee_reg_qstn-' . $registration->ID() . '-' . $identifier,
+			'html_class'       => 'ee-reg-qstn ee-reg-qstn-' . $identifier,
+			'html_label_id'    => 'ee_reg_qstn-' . $registration->ID() . '-' . $identifier,
+			'html_label_class' => 'ee-reg-qstn',
+		);
+		$input_constructor_args['html_label_id'] .= '-lbl';
+		if ($answer instanceof EE_Answer && $answer->ID()) {
+			$input_constructor_args['html_name']     .= '[' . $answer->ID() . ']';
+			$input_constructor_args['html_id']       .= '-' . $answer->ID();
+			$input_constructor_args['html_label_id'] .= '-' . $answer->ID();
+		}
+		$form_input = $question->generate_form_input(
+			$registration,
+			$answer,
+			$input_constructor_args
+		);
+		remove_filter(
+			'FHEE__EE_Question__generate_form_input__country_options',
+			array($this, 'use_cached_countries_for_form_input')
+		);
+		remove_filter(
+			'FHEE__EE_Question__generate_form_input__state_options',
+			array($this, 'use_cached_states_for_form_input')
+		);
+		return $form_input;
+	}
+
+
+	/**
+	 * Gets the list of countries for the form input
+	 *
+	 * @param array|null       $countries_list
+	 * @param \EE_Question     $question
+	 * @param \EE_Registration $registration
+	 * @param \EE_Answer       $answer
+	 * @return array 2d keys are country IDs, values are their names
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function use_cached_countries_for_form_input(
+		$countries_list,
+		\EE_Question $question = null,
+		\EE_Registration $registration = null,
+		\EE_Answer $answer = null
+	) {
+		$country_options = array('' => '');
+		// get possibly cached list of countries
+		$countries = $this->checkout->action === 'process_reg_step'
+			? EEM_Country::instance()->get_all_countries()
+			: EEM_Country::instance()->get_all_active_countries();
+		if (! empty($countries)) {
+			foreach ($countries as $country) {
+				if ($country instanceof EE_Country) {
+					$country_options[$country->ID()] = $country->name();
+				}
+			}
+		}
+		if ($question instanceof EE_Question
+			&& $registration instanceof EE_Registration) {
+			$answer = EEM_Answer::instance()->get_one(
+				array(array('QST_ID' => $question->ID(), 'REG_ID' => $registration->ID()))
+			);
+		} else {
+			$answer = EE_Answer::new_instance();
+		}
+		$country_options = apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__country_options',
+			$country_options,
+			$this,
+			$registration,
+			$question,
+			$answer
+		);
+		return $country_options;
+	}
+
+
+	/**
+	 * Gets the list of states for the form input
+	 *
+	 * @param array|null       $states_list
+	 * @param \EE_Question     $question
+	 * @param \EE_Registration $registration
+	 * @param \EE_Answer       $answer
+	 * @return array 2d keys are state IDs, values are their names
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function use_cached_states_for_form_input(
+		$states_list,
+		\EE_Question $question = null,
+		\EE_Registration $registration = null,
+		\EE_Answer $answer = null
+	) {
+		$state_options = array('' => array('' => ''));
+		$states        = $this->checkout->action === 'process_reg_step'
+			? EEM_State::instance()->get_all_states()
+			: EEM_State::instance()->get_all_active_states();
+		if (! empty($states)) {
+			foreach ($states as $state) {
+				if ($state instanceof EE_State) {
+					$state_options[$state->country()->name()][$state->ID()] = $state->name();
+				}
+			}
+		}
+		$state_options = apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__state_options',
+			$state_options,
+			$this,
+			$registration,
+			$question,
+			$answer
+		);
+		return $state_options;
+	}
+
+
+
+
+
+
+	/********************************************************************************************************/
+	/****************************************  PROCESS REG STEP  ****************************************/
+	/********************************************************************************************************/
+	/**
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function process_reg_step()
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		// grab validated data from form
+		$valid_data = $this->checkout->current_step->valid_data();
+		// EEH_Debug_Tools::printr( $_REQUEST, '$_REQUEST', __FILE__, __LINE__ );
+		// EEH_Debug_Tools::printr( $valid_data, '$valid_data', __FILE__, __LINE__ );
+		// if we don't have any $valid_data then something went TERRIBLY WRONG !!!
+		if (empty($valid_data)) {
+			EE_Error::add_error(
+				esc_html__('No valid question responses were received.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		if (! $this->checkout->transaction instanceof EE_Transaction || ! $this->checkout->continue_reg) {
+			EE_Error::add_error(
+				esc_html__(
+					'A valid transaction could not be initiated for processing your registrations.',
+					'event_espresso'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// get cached registrations
+		$registrations = $this->checkout->transaction->registrations($this->checkout->reg_cache_where_params);
+		// verify we got the goods
+		if (empty($registrations)) {
+			//combine the old translated string with a new one, in order to not break translations
+			$error_message = esc_html__( 'Your form data could not be applied to any valid registrations.', 'event_espresso' )
+							 . sprintf(
+								 esc_html__('%3$sThis can sometimes happen if too much time has been taken to complete the registration process.%3$sPlease return to the %1$sEvent List%2$s and reselect your tickets. If the problem continues, please contact the site administrator.', 'event_espresso'),
+								 '<a href="' . get_post_type_archive_link('espresso_events') . '" >',
+								 '</a>',
+								 '<br />'
+							 );
+			EE_Error::add_error(
+				$error_message,
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// extract attendee info from form data and save to model objects
+		$registrations_processed = $this->_process_registrations($registrations, $valid_data);
+		// if first pass thru SPCO,
+		// then let's check processed registrations against the total number of tickets in the cart
+		if ($registrations_processed === false) {
+			// but return immediately if the previous step exited early due to errors
+			return false;
+		} elseif (! $this->checkout->revisit && $registrations_processed !== $this->checkout->total_ticket_count) {
+			// generate a correctly translated string for all possible singular/plural combinations
+			if ($this->checkout->total_ticket_count === 1 && $registrations_processed !== 1) {
+				$error_msg = sprintf(
+					esc_html__(
+						'There was %1$d ticket in the Event Queue, but %2$ds registrations were processed',
+						'event_espresso'
+					),
+					$this->checkout->total_ticket_count,
+					$registrations_processed
+				);
+			} elseif ($this->checkout->total_ticket_count !== 1 && $registrations_processed === 1) {
+				$error_msg = sprintf(
+					esc_html__(
+						'There was a total of %1$d tickets in the Event Queue, but only %2$ds registration was processed',
+						'event_espresso'
+					),
+					$this->checkout->total_ticket_count,
+					$registrations_processed
+				);
+			} else {
+				$error_msg = sprintf(
+					esc_html__(
+						'There was a total of %1$d tickets in the Event Queue, but %2$ds registrations were processed',
+						'event_espresso'
+					),
+					$this->checkout->total_ticket_count,
+					$registrations_processed
+				);
+			}
+			EE_Error::add_error($error_msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		// mark this reg step as completed
+		$this->set_completed();
+		$this->_set_success_message(
+			esc_html__('The Attendee Information Step has been successfully completed.', 'event_espresso')
+		);
+		//do action in case a plugin wants to do something with the data submitted in step 1.
+		//passes EE_Single_Page_Checkout, and it's posted data
+		do_action('AHEE__EE_Single_Page_Checkout__process_attendee_information__end', $this, $valid_data);
+		return true;
+	}
+
+
+	/**
+	 *    _process_registrations
+	 *
+	 * @param EE_Registration[] $registrations
+	 * @param array             $valid_data
+	 * @return bool|int
+	 * @throws \EventEspresso\core\exceptions\EntityNotFoundException
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _process_registrations($registrations = array(), $valid_data = array())
+	{
+		// load resources and set some defaults
+		EE_Registry::instance()->load_model('Attendee');
+		// holder for primary registrant attendee object
+		$this->checkout->primary_attendee_obj = null;
+		// array for tracking reg form data for the primary registrant
+		$primary_registrant = array(
+			'line_item_id' => null,
+		);
+		$copy_primary       = false;
+		// reg form sections that do not contain inputs
+		$non_input_form_sections = array(
+			'primary_registrant',
+			'additional_attendee_reg_info',
+			'spco_copy_attendee_chk',
+		);
+		// attendee counter
+		$att_nmbr = 0;
+		// grab the saved registrations from the transaction
+		foreach ($registrations as $registration) {
+			// verify EE_Registration object
+			if (! $registration instanceof EE_Registration) {
+				EE_Error::add_error(
+					esc_html__(
+						'An invalid Registration object was discovered when attempting to process your registration information.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				return false;
+			}
+			/** @var string $reg_url_link */
+			$reg_url_link = $registration->reg_url_link();
+			// reg_url_link exists ?
+			if (! empty($reg_url_link)) {
+				// should this registration be processed during this visit ?
+				if ($this->checkout->visit_allows_processing_of_this_registration($registration)) {
+					// if NOT revisiting, then let's save the registration now,
+					// so that we have a REG_ID to use when generating other objects
+					if (! $this->checkout->revisit) {
+						$registration->save();
+					}
+					/**
+					 * This allows plugins to trigger a fail on processing of a
+					 * registration for any conditions they may have for it to pass.
+					 *
+					 * @var bool   if true is returned by the plugin then the
+					 *            registration processing is halted.
+					 */
+					if (apply_filters(
+						'FHEE__EE_SPCO_Reg_Step_Attendee_Information___process_registrations__pre_registration_process',
+						false,
+						$att_nmbr,
+						$registration,
+						$registrations,
+						$valid_data,
+						$this
+					)) {
+						return false;
+					}
+
+					// Houston, we have a registration!
+					$att_nmbr++;
+					$this->_attendee_data[$reg_url_link] = array();
+					// grab any existing related answer objects
+					$this->_registration_answers = $registration->answers();
+					// unset( $valid_data[ $reg_url_link ]['additional_attendee_reg_info'] );
+					if (isset($valid_data[$reg_url_link])) {
+						// do we need to copy basic info from primary attendee ?
+						$copy_primary = isset($valid_data[$reg_url_link]['additional_attendee_reg_info'])
+										&& absint($valid_data[$reg_url_link]['additional_attendee_reg_info']) === 0
+							? true
+							: false;
+						// filter form input data for this registration
+						$valid_data[$reg_url_link] = (array)apply_filters(
+							'FHEE__EE_Single_Page_Checkout__process_attendee_information__valid_data_line_item',
+							$valid_data[$reg_url_link]
+						);
+						if (isset($valid_data['primary_attendee'])) {
+							$primary_registrant['line_item_id'] = ! empty($valid_data['primary_attendee'])
+								? $valid_data['primary_attendee']
+								: false;
+							unset($valid_data['primary_attendee']);
+						}
+						// now loop through our array of valid post data && process attendee reg forms
+						foreach ($valid_data[$reg_url_link] as $form_section => $form_inputs) {
+							if (! in_array($form_section, $non_input_form_sections)) {
+								foreach ($form_inputs as $form_input => $input_value) {
+									// \EEH_Debug_Tools::printr( $input_value, $form_input, __FILE__, __LINE__ );
+									// check for critical inputs
+									if (! $this->_verify_critical_attendee_details_are_set_and_validate_email(
+										$form_input,
+										$input_value
+									)
+									) {
+										return false;
+									}
+									// store a bit of data about the primary attendee
+									if ($att_nmbr === 1
+										&& ! empty($input_value)
+										&& $reg_url_link === $primary_registrant['line_item_id']
+									) {
+										$primary_registrant[$form_input] = $input_value;
+									} elseif ($copy_primary
+										&& $input_value === null
+										&& isset($primary_registrant[$form_input])
+									) {
+										$input_value = $primary_registrant[$form_input];
+									}
+									// now attempt to save the input data
+									if (! $this->_save_registration_form_input(
+										$registration,
+										$form_input,
+										$input_value
+									)
+									) {
+										EE_Error::add_error(
+											sprintf(
+												esc_html__(
+													'Unable to save registration form data for the form input: "%1$s" with the submitted value: "%2$s"',
+													'event_espresso'
+												),
+												$form_input,
+												$input_value
+											),
+											__FILE__,
+											__FUNCTION__,
+											__LINE__
+										);
+										return false;
+									}
+								}
+							}
+						}  // end of foreach ( $valid_data[ $reg_url_link ] as $form_section => $form_inputs )
+					}
+					//EEH_Debug_Tools::printr( $this->_attendee_data, '$this->_attendee_data', __FILE__, __LINE__ );
+					// this registration does not require additional attendee information ?
+					if ($copy_primary
+						&& $att_nmbr > 1
+						&& $this->checkout->primary_attendee_obj instanceof EE_Attendee
+					) {
+						// just copy the primary registrant
+						$attendee = $this->checkout->primary_attendee_obj;
+					} else {
+						// ensure critical details are set for additional attendees
+						$this->_attendee_data[$reg_url_link] = $att_nmbr > 1
+							? $this->_copy_critical_attendee_details_from_primary_registrant(
+								$this->_attendee_data[$reg_url_link]
+							)
+							: $this->_attendee_data[$reg_url_link];
+						// execute create attendee command (which may return an existing attendee)
+						$attendee = EE_Registry::instance()->BUS->execute(
+							new CreateAttendeeCommand(
+								$this->_attendee_data[$reg_url_link],
+								$registration
+							)
+						);
+						// who's #1 ?
+						if ($att_nmbr === 1) {
+							$this->checkout->primary_attendee_obj = $attendee;
+						}
+					}
+					// EEH_Debug_Tools::printr( $attendee, '$attendee', __FILE__, __LINE__ );
+					// add relation to registration, set attendee ID, and cache attendee
+					$this->_associate_attendee_with_registration($registration, $attendee);
+					// \EEH_Debug_Tools::printr( $registration, '$registration', __FILE__, __LINE__ );
+					if (! $registration->attendee() instanceof EE_Attendee) {
+						EE_Error::add_error(
+							sprintf(
+								esc_html__(
+									'Registration %s has an invalid or missing Attendee object.',
+									'event_espresso'
+								),
+								$reg_url_link
+							),
+							__FILE__,
+							__FUNCTION__,
+							__LINE__
+						);
+						return false;
+					}
+					/** @type EE_Registration_Processor $registration_processor */
+					$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
+					// at this point, we should have enough details about the registrant to consider the registration
+					// NOT incomplete
+					$registration_processor->toggle_incomplete_registration_status_to_default(
+						$registration,
+						false,
+						new Context(
+							'spco_reg_step_attendee_information_process_registrations',
+							esc_html__(
+								'Finished populating registration with details from the registration form after submitting the Attendee Information Reg Step.',
+								'event_espresso'
+							)
+						)
+					);
+					// we can also consider the TXN to not have been failed, so temporarily upgrade it's status to
+					// abandoned
+					$this->checkout->transaction->toggle_failed_transaction_status();
+					// if we've gotten this far, then let's save what we have
+					$registration->save();
+					// add relation between TXN and registration
+					$this->_associate_registration_with_transaction($registration);
+				}
+			} else {
+				EE_Error::add_error(
+					esc_html__(
+						'An invalid or missing line item ID was encountered while attempting to process the registration form.',
+						'event_espresso'
+					),
+					__FILE__,
+					__FUNCTION__,
+					__LINE__
+				);
+				// remove malformed data
+				unset($valid_data[$reg_url_link]);
+				return false;
+			}
+
+		} // end of foreach ( $this->checkout->transaction->registrations()  as $registration )
+		return $att_nmbr;
+	}
+
+
+	/**
+	 *    _save_registration_form_input
+	 *
+	 * @param EE_Registration $registration
+	 * @param string          $form_input
+	 * @param string          $input_value
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	private function _save_registration_form_input(
+		EE_Registration $registration,
+		$form_input = '',
+		$input_value = ''
+	) {
+		// \EEH_Debug_Tools::printr( __FUNCTION__, __CLASS__, __FILE__, __LINE__, 2 );
+		// \EEH_Debug_Tools::printr( $form_input, '$form_input', __FILE__, __LINE__ );
+		// \EEH_Debug_Tools::printr( $input_value, '$input_value', __FILE__, __LINE__ );
+		// allow for plugins to hook in and do their own processing of the form input.
+		// For plugins to bypass normal processing here, they just need to return a boolean value.
+		if (apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information___save_registration_form_input',
+			false,
+			$registration,
+			$form_input,
+			$input_value,
+			$this
+		)) {
+			return true;
+		}
+		/*
          * $answer_cache_id is the key used to find the EE_Answer we want
          * @see https://events.codebasehq.com/projects/event-espresso/tickets/10477
          */
-        $answer_cache_id = $this->checkout->reg_url_link
-            ? $form_input . '-' . $registration->reg_url_link()
-            : $form_input;
-        $answer_is_obj   = isset($this->_registration_answers[$answer_cache_id])
-                           && $this->_registration_answers[$answer_cache_id] instanceof EE_Answer
-            ? true
-            : false;
-        //rename form_inputs if they are EE_Attendee properties
-        switch ((string) $form_input) {
-            case 'state':
-            case 'STA_ID':
-                $attendee_property = true;
-                $form_input        = 'STA_ID';
-                break;
-
-            case 'country':
-            case 'CNT_ISO':
-                $attendee_property = true;
-                $form_input        = 'CNT_ISO';
-                break;
-
-            default:
-                $ATT_input = 'ATT_' . $form_input;
-                //EEH_Debug_Tools::printr( $ATT_input, '$ATT_input', __FILE__, __LINE__ );
-                $attendee_property = EEM_Attendee::instance()->has_field($ATT_input) ? true : false;
-                $form_input        = $attendee_property ? 'ATT_' . $form_input : $form_input;
-        }
-        // EEH_Debug_Tools::printr( $answer_cache_id, '$answer_cache_id', __FILE__, __LINE__ );
-        // EEH_Debug_Tools::printr( $attendee_property, '$attendee_property', __FILE__, __LINE__ );
-        // EEH_Debug_Tools::printr( $answer_is_obj, '$answer_is_obj', __FILE__, __LINE__ );
-        // if this form input has a corresponding attendee property
-        if ($attendee_property) {
-            $this->_attendee_data[$registration->reg_url_link()][$form_input] = $input_value;
-            if ($answer_is_obj) {
-                // and delete the corresponding answer since we won't be storing this data in that object
-                $registration->_remove_relation_to($this->_registration_answers[$answer_cache_id], 'Answer');
-                $this->_registration_answers[$answer_cache_id]->delete_permanently();
-            }
-            return true;
-        } elseif ($answer_is_obj) {
-            // save this data to the answer object
-            $this->_registration_answers[$answer_cache_id]->set_value($input_value);
-            $result = $this->_registration_answers[$answer_cache_id]->save();
-            return $result !== false ? true : false;
-        } else {
-            foreach ($this->_registration_answers as $answer) {
-                if ($answer instanceof EE_Answer && $answer->question_ID() === $answer_cache_id) {
-                    $answer->set_value($input_value);
-                    $result = $answer->save();
-                    return $result !== false ? true : false;
-                }
-            }
-        }
-        return false;
-    }
-
-
-    /**
-     *    _verify_critical_attendee_details_are_set
-     *
-     * @param string $form_input
-     * @param string $input_value
-     * @return boolean
-     */
-    private function _verify_critical_attendee_details_are_set_and_validate_email(
-        $form_input = '',
-        $input_value = ''
-    ) {
-        if (empty($input_value)) {
-            // if the form input isn't marked as being required, then just return
-            if (! isset($this->_required_questions[$form_input]) || ! $this->_required_questions[$form_input]) {
-                return true;
-            }
-            switch ($form_input) {
-                case 'fname':
-                    EE_Error::add_error(
-                        esc_html__('First Name is a required value.', 'event_espresso'),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                    break;
-                case 'lname':
-                    EE_Error::add_error(
-                        esc_html__('Last Name is a required value.', 'event_espresso'),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                    break;
-                case 'email':
-                    EE_Error::add_error(
-                        esc_html__('Please enter a valid email address.', 'event_espresso'),
-                        __FILE__,
-                        __FUNCTION__,
-                        __LINE__
-                    );
-                    return false;
-                    break;
-            }
-        }
-        return true;
-    }
-
-
-    /**
-     *    _associate_attendee_with_registration
-     *
-     * @param EE_Registration $registration
-     * @param EE_Attendee     $attendee
-     * @return void
-     * @throws EE_Error
-     * @throws RuntimeException
-     */
-    private function _associate_attendee_with_registration(EE_Registration $registration, EE_Attendee $attendee)
-    {
-        // add relation to attendee
-        $registration->_add_relation_to($attendee, 'Attendee');
-        $registration->set_attendee_id($attendee->ID());
-        $registration->update_cache_after_object_save('Attendee', $attendee);
-    }
-
-
-    /**
-     *    _associate_registration_with_transaction
-     *
-     * @param EE_Registration $registration
-     * @return void
-     * @throws \EE_Error
-     */
-    private function _associate_registration_with_transaction(EE_Registration $registration)
-    {
-        // add relation to registration
-        $this->checkout->transaction->_add_relation_to($registration, 'Registration');
-        $this->checkout->transaction->update_cache_after_object_save('Registration', $registration);
-    }
-
-
-    /**
-     *    _copy_critical_attendee_details_from_primary_registrant
-     *    ensures that all attendees at least have data for first name, last name, and email address
-     *
-     * @param array $attendee_data
-     * @return array
-     * @throws \EE_Error
-     */
-    private function _copy_critical_attendee_details_from_primary_registrant($attendee_data = array())
-    {
-        // bare minimum critical details include first name, last name, email address
-        $critical_attendee_details = array('ATT_fname', 'ATT_lname', 'ATT_email');
-        // add address info to critical details?
-        if (apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information__merge_address_details_with_critical_attendee_details',
-            false
-        )) {
-            $address_details           = array(
-                'ATT_address',
-                'ATT_address2',
-                'ATT_city',
-                'STA_ID',
-                'CNT_ISO',
-                'ATT_zip',
-                'ATT_phone',
-            );
-            $critical_attendee_details = array_merge($critical_attendee_details, $address_details);
-        }
-        foreach ($critical_attendee_details as $critical_attendee_detail) {
-            if (! isset($attendee_data[$critical_attendee_detail])
-                || empty($attendee_data[$critical_attendee_detail])
-            ) {
-                $attendee_data[$critical_attendee_detail] = $this->checkout->primary_attendee_obj->get(
-                    $critical_attendee_detail
-                );
-            }
-        }
-        return $attendee_data;
-    }
-
-
-    /**
-     *    update_reg_step
-     *    this is the final step after a user  revisits the site to edit their attendee information
-     *    this gets called AFTER the process_reg_step() method above
-     *
-     * @return bool
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws ReflectionException
-     * @throws RuntimeException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function update_reg_step()
-    {
-        // save everything
-        if ($this->process_reg_step()) {
-            $this->checkout->redirect     = true;
-            $this->checkout->redirect_url = add_query_arg(
-                array(
-                    'e_reg_url_link' => $this->checkout->reg_url_link,
-                    'revisit'        => true,
-                ),
-                $this->checkout->thank_you_page_url
-            );
-            $this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
-            return true;
-        }
-        return false;
-    }
+		$answer_cache_id = $this->checkout->reg_url_link
+			? $form_input . '-' . $registration->reg_url_link()
+			: $form_input;
+		$answer_is_obj   = isset($this->_registration_answers[$answer_cache_id])
+						   && $this->_registration_answers[$answer_cache_id] instanceof EE_Answer
+			? true
+			: false;
+		//rename form_inputs if they are EE_Attendee properties
+		switch ((string) $form_input) {
+			case 'state':
+			case 'STA_ID':
+				$attendee_property = true;
+				$form_input        = 'STA_ID';
+				break;
+
+			case 'country':
+			case 'CNT_ISO':
+				$attendee_property = true;
+				$form_input        = 'CNT_ISO';
+				break;
+
+			default:
+				$ATT_input = 'ATT_' . $form_input;
+				//EEH_Debug_Tools::printr( $ATT_input, '$ATT_input', __FILE__, __LINE__ );
+				$attendee_property = EEM_Attendee::instance()->has_field($ATT_input) ? true : false;
+				$form_input        = $attendee_property ? 'ATT_' . $form_input : $form_input;
+		}
+		// EEH_Debug_Tools::printr( $answer_cache_id, '$answer_cache_id', __FILE__, __LINE__ );
+		// EEH_Debug_Tools::printr( $attendee_property, '$attendee_property', __FILE__, __LINE__ );
+		// EEH_Debug_Tools::printr( $answer_is_obj, '$answer_is_obj', __FILE__, __LINE__ );
+		// if this form input has a corresponding attendee property
+		if ($attendee_property) {
+			$this->_attendee_data[$registration->reg_url_link()][$form_input] = $input_value;
+			if ($answer_is_obj) {
+				// and delete the corresponding answer since we won't be storing this data in that object
+				$registration->_remove_relation_to($this->_registration_answers[$answer_cache_id], 'Answer');
+				$this->_registration_answers[$answer_cache_id]->delete_permanently();
+			}
+			return true;
+		} elseif ($answer_is_obj) {
+			// save this data to the answer object
+			$this->_registration_answers[$answer_cache_id]->set_value($input_value);
+			$result = $this->_registration_answers[$answer_cache_id]->save();
+			return $result !== false ? true : false;
+		} else {
+			foreach ($this->_registration_answers as $answer) {
+				if ($answer instanceof EE_Answer && $answer->question_ID() === $answer_cache_id) {
+					$answer->set_value($input_value);
+					$result = $answer->save();
+					return $result !== false ? true : false;
+				}
+			}
+		}
+		return false;
+	}
+
+
+	/**
+	 *    _verify_critical_attendee_details_are_set
+	 *
+	 * @param string $form_input
+	 * @param string $input_value
+	 * @return boolean
+	 */
+	private function _verify_critical_attendee_details_are_set_and_validate_email(
+		$form_input = '',
+		$input_value = ''
+	) {
+		if (empty($input_value)) {
+			// if the form input isn't marked as being required, then just return
+			if (! isset($this->_required_questions[$form_input]) || ! $this->_required_questions[$form_input]) {
+				return true;
+			}
+			switch ($form_input) {
+				case 'fname':
+					EE_Error::add_error(
+						esc_html__('First Name is a required value.', 'event_espresso'),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+					break;
+				case 'lname':
+					EE_Error::add_error(
+						esc_html__('Last Name is a required value.', 'event_espresso'),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+					break;
+				case 'email':
+					EE_Error::add_error(
+						esc_html__('Please enter a valid email address.', 'event_espresso'),
+						__FILE__,
+						__FUNCTION__,
+						__LINE__
+					);
+					return false;
+					break;
+			}
+		}
+		return true;
+	}
+
+
+	/**
+	 *    _associate_attendee_with_registration
+	 *
+	 * @param EE_Registration $registration
+	 * @param EE_Attendee     $attendee
+	 * @return void
+	 * @throws EE_Error
+	 * @throws RuntimeException
+	 */
+	private function _associate_attendee_with_registration(EE_Registration $registration, EE_Attendee $attendee)
+	{
+		// add relation to attendee
+		$registration->_add_relation_to($attendee, 'Attendee');
+		$registration->set_attendee_id($attendee->ID());
+		$registration->update_cache_after_object_save('Attendee', $attendee);
+	}
+
+
+	/**
+	 *    _associate_registration_with_transaction
+	 *
+	 * @param EE_Registration $registration
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private function _associate_registration_with_transaction(EE_Registration $registration)
+	{
+		// add relation to registration
+		$this->checkout->transaction->_add_relation_to($registration, 'Registration');
+		$this->checkout->transaction->update_cache_after_object_save('Registration', $registration);
+	}
+
+
+	/**
+	 *    _copy_critical_attendee_details_from_primary_registrant
+	 *    ensures that all attendees at least have data for first name, last name, and email address
+	 *
+	 * @param array $attendee_data
+	 * @return array
+	 * @throws \EE_Error
+	 */
+	private function _copy_critical_attendee_details_from_primary_registrant($attendee_data = array())
+	{
+		// bare minimum critical details include first name, last name, email address
+		$critical_attendee_details = array('ATT_fname', 'ATT_lname', 'ATT_email');
+		// add address info to critical details?
+		if (apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information__merge_address_details_with_critical_attendee_details',
+			false
+		)) {
+			$address_details           = array(
+				'ATT_address',
+				'ATT_address2',
+				'ATT_city',
+				'STA_ID',
+				'CNT_ISO',
+				'ATT_zip',
+				'ATT_phone',
+			);
+			$critical_attendee_details = array_merge($critical_attendee_details, $address_details);
+		}
+		foreach ($critical_attendee_details as $critical_attendee_detail) {
+			if (! isset($attendee_data[$critical_attendee_detail])
+				|| empty($attendee_data[$critical_attendee_detail])
+			) {
+				$attendee_data[$critical_attendee_detail] = $this->checkout->primary_attendee_obj->get(
+					$critical_attendee_detail
+				);
+			}
+		}
+		return $attendee_data;
+	}
+
+
+	/**
+	 *    update_reg_step
+	 *    this is the final step after a user  revisits the site to edit their attendee information
+	 *    this gets called AFTER the process_reg_step() method above
+	 *
+	 * @return bool
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws ReflectionException
+	 * @throws RuntimeException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function update_reg_step()
+	{
+		// save everything
+		if ($this->process_reg_step()) {
+			$this->checkout->redirect     = true;
+			$this->checkout->redirect_url = add_query_arg(
+				array(
+					'e_reg_url_link' => $this->checkout->reg_url_link,
+					'revisit'        => true,
+				),
+				$this->checkout->thank_you_page_url
+			);
+			$this->checkout->json_response->set_redirect_url($this->checkout->redirect_url);
+			return true;
+		}
+		return false;
+	}
 }

Spacing +51 added lines, -52 removed lines

@@ -48,7 +48,7 @@ 
     {
         $this->_slug     = 'attendee_information';
         $this->_name     = esc_html__('Attendee Information', 'event_espresso');
-        $this->_template = SPCO_REG_STEPS_PATH . $this->_slug . DS . 'attendee_info_main.template.php';
+        $this->_template = SPCO_REG_STEPS_PATH.$this->_slug.DS.'attendee_info_main.template.php';
         $this->checkout  = $checkout;
         $this->_reset_success_message();
         $this->set_instructions(
@@ -59,11 +59,11 @@ 
 
     public function translate_js_strings()
     {
-        EE_Registry::$i18n_js_strings['required_field']            = esc_html__(
+        EE_Registry::$i18n_js_strings['required_field'] = esc_html__(
             ' is a required question.',
             'event_espresso'
         );
-        EE_Registry::$i18n_js_strings['required_multi_field']      = esc_html__(
+        EE_Registry::$i18n_js_strings['required_multi_field'] = esc_html__(
             ' is a required question. Please enter a value for at least one of the options.',
             'event_espresso'
         );
@@ -71,18 +71,18 @@ 
             'Please answer all required questions correctly before proceeding.',
             'event_espresso'
         );
-        EE_Registry::$i18n_js_strings['attendee_info_copied']      = sprintf(
+        EE_Registry::$i18n_js_strings['attendee_info_copied'] = sprintf(
             esc_html__(
                 'The attendee information was successfully copied.%sPlease ensure the rest of the registration form is completed before proceeding.',
                 'event_espresso'
             ),
             '<br/>'
         );
-        EE_Registry::$i18n_js_strings['attendee_info_copy_error']  = esc_html__(
+        EE_Registry::$i18n_js_strings['attendee_info_copy_error'] = esc_html__(
             'An unknown error occurred on the server while attempting to copy the attendee information. Please refresh the page and try again.',
             'event_espresso'
         );
-        EE_Registry::$i18n_js_strings['enter_valid_email']         = esc_html__(
+        EE_Registry::$i18n_js_strings['enter_valid_email'] = esc_html__(
             'You must enter a valid email address.',
             'event_espresso'
         );
@@ -145,7 +145,7 @@ 
                     && $this->checkout->visit_allows_processing_of_this_registration($registration)
                 ) {
                     $subsections[$registration->reg_url_link()] = $this->_registrations_reg_form($registration);
-                    if (! $this->checkout->admin_request) {
+                    if ( ! $this->checkout->admin_request) {
                         $template_args['registrations'][$registration->reg_url_link()]    = $registration;
                         $template_args['ticket_count'][$registration->ticket()->ID()]     = isset(
                             $template_args['ticket_count'][$registration->ticket()->ID()]
@@ -194,8 +194,7 @@ 
                 'html_id'         => $this->reg_form_name(),
                 'subsections'     => $subsections,
                 'layout_strategy' => $this->checkout->admin_request ?
-                    new EE_Div_Per_Section_Layout() :
-                    new EE_Template_Layout(
+                    new EE_Div_Per_Section_Layout() : new EE_Template_Layout(
                         array(
                             'layout_template_file' => $this->_template, // layout_template
                             'template_args'        => $template_args,
@@ -238,7 +237,7 @@ 
             if ($question_groups) {
                 // array of params to pass to parent constructor
                 $form_args = array(
-                    'html_id'         => 'ee-registration-' . $registration->reg_url_link(),
+                    'html_id'         => 'ee-registration-'.$registration->reg_url_link(),
                     'html_class'      => 'ee-reg-form-attendee-dv',
                     'html_style'      => $this->checkout->admin_request
                         ? 'padding:0em 2em 1em; margin:3em 0 0; border:1px solid #ddd;'
@@ -294,7 +293,7 @@ 
         // generate hidden input
         return new EE_Hidden_Input(
             array(
-                'html_id' => 'additional-attendee-reg-info-' . $registration->reg_url_link(),
+                'html_id' => 'additional-attendee-reg-info-'.$registration->reg_url_link(),
                 'default' => $additional_attendee_reg_info,
             )
         );
@@ -314,11 +313,11 @@ 
     {
         // array of params to pass to parent constructor
         $form_args = array(
-            'html_id'         => 'ee-reg-form-qstn-grp-' . $question_group->identifier() . '-' . $registration->ID(),
+            'html_id'         => 'ee-reg-form-qstn-grp-'.$question_group->identifier().'-'.$registration->ID(),
             'html_class'      => $this->checkout->admin_request
                 ? 'form-table ee-reg-form-qstn-grp-dv'
                 : 'ee-reg-form-qstn-grp-dv',
-            'html_label_id'   => 'ee-reg-form-qstn-grp-' . $question_group->identifier() .  '-' . $registration->ID() . '-lbl',
+            'html_label_id'   => 'ee-reg-form-qstn-grp-'.$question_group->identifier().'-'.$registration->ID().'-lbl',
             'subsections'     => array(
                 'reg_form_qstn_grp_hdr' => $this->_question_group_header($question_group),
             ),
@@ -329,7 +328,7 @@ 
         // where params
         $query_params = array('QST_deleted' => 0);
         // don't load admin only questions on the frontend
-        if (! $this->checkout->admin_request) {
+        if ( ! $this->checkout->admin_request) {
             $query_params['QST_admin_only'] = array('!=', true);
         }
         $questions = $question_group->get_many_related(
@@ -473,7 +472,7 @@ 
     {
         return new EE_Form_Section_HTML(
             EEH_Template::locate_template(
-                SPCO_REG_STEPS_PATH . $this->_slug . DS . '_auto_copy_attendee_info.template.php',
+                SPCO_REG_STEPS_PATH.$this->_slug.DS.'_auto_copy_attendee_info.template.php',
                 apply_filters(
                     'FHEE__EE_SPCO_Reg_Step_Attendee_Information__auto_copy_attendee_info__template_args',
                     array()
@@ -505,16 +504,16 @@ 
                 if ($registration->ticket()->ID() !== $prev_ticket) {
                     $item_name = $registration->ticket()->name();
                     $item_name .= $registration->ticket()->description() !== ''
-                        ? ' - ' . $registration->ticket()->description()
+                        ? ' - '.$registration->ticket()->description()
                         : '';
-                    $copy_attendee_info_inputs['spco_copy_attendee_chk[ticket-' . $registration->ticket()->ID() . ']'] =
+                    $copy_attendee_info_inputs['spco_copy_attendee_chk[ticket-'.$registration->ticket()->ID().']'] =
                         new EE_Form_Section_HTML(
-                            '<h6 class="spco-copy-attendee-event-hdr">' . $item_name . '</h6>'
+                            '<h6 class="spco-copy-attendee-event-hdr">'.$item_name.'</h6>'
                         );
                     $prev_ticket = $registration->ticket()->ID();
                 }
 
-                $copy_attendee_info_inputs['spco_copy_attendee_chk[' . $registration->ID() . ']'] =
+                $copy_attendee_info_inputs['spco_copy_attendee_chk['.$registration->ID().']'] =
                     new EE_Checkbox_Multi_Input(
                         array(
                             $registration->ID() => sprintf(
@@ -523,7 +522,7 @@ 
                             ),
                         ),
                         array(
-                            'html_id'                 => 'spco-copy-attendee-chk-' . $registration->reg_url_link(),
+                            'html_id'                 => 'spco-copy-attendee-chk-'.$registration->reg_url_link(),
                             'html_class'              => 'spco-copy-attendee-chk ee-do-not-validate',
                             'display_html_label_text' => false,
                         )
@@ -572,7 +571,7 @@ 
             $registration,
             $question->system_ID()
         );
-        $answer       = $answer_value === null
+        $answer = $answer_value === null
             ? EEM_Answer::instance()->get_one(
                 array(array('QST_ID' => $question->ID(), 'REG_ID' => $registration->ID()))
             )
@@ -589,14 +588,14 @@ 
         }
         // verify instance
         if ($answer instanceof EE_Answer) {
-            if (! empty($answer_value)) {
+            if ( ! empty($answer_value)) {
                 $answer->set('ANS_value', $answer_value);
             }
             $answer->cache('Question', $question);
             //remember system ID had a bug where sometimes it could be null
             $answer_cache_id = $question->is_system_question()
-                ? $question->system_ID() . '-' . $registration->reg_url_link()
-                : $question->ID() . '-' . $registration->reg_url_link();
+                ? $question->system_ID().'-'.$registration->reg_url_link()
+                : $question->ID().'-'.$registration->reg_url_link();
             $registration->cache('Answer', $answer, $answer_cache_id);
         }
         return $this->_generate_question_input($registration, $question, $answer);
@@ -628,18 +627,18 @@ 
             10,
             4
         );
-        $input_constructor_args                  = array(
-            'html_name'        => 'ee_reg_qstn[' . $registration->ID() . '][' . $identifier . ']',
-            'html_id'          => 'ee_reg_qstn-' . $registration->ID() . '-' . $identifier,
-            'html_class'       => 'ee-reg-qstn ee-reg-qstn-' . $identifier,
-            'html_label_id'    => 'ee_reg_qstn-' . $registration->ID() . '-' . $identifier,
+        $input_constructor_args = array(
+            'html_name'        => 'ee_reg_qstn['.$registration->ID().']['.$identifier.']',
+            'html_id'          => 'ee_reg_qstn-'.$registration->ID().'-'.$identifier,
+            'html_class'       => 'ee-reg-qstn ee-reg-qstn-'.$identifier,
+            'html_label_id'    => 'ee_reg_qstn-'.$registration->ID().'-'.$identifier,
             'html_label_class' => 'ee-reg-qstn',
         );
         $input_constructor_args['html_label_id'] .= '-lbl';
         if ($answer instanceof EE_Answer && $answer->ID()) {
-            $input_constructor_args['html_name']     .= '[' . $answer->ID() . ']';
-            $input_constructor_args['html_id']       .= '-' . $answer->ID();
-            $input_constructor_args['html_label_id'] .= '-' . $answer->ID();
+            $input_constructor_args['html_name']     .= '['.$answer->ID().']';
+            $input_constructor_args['html_id']       .= '-'.$answer->ID();
+            $input_constructor_args['html_label_id'] .= '-'.$answer->ID();
         }
         $form_input = $question->generate_form_input(
             $registration,
@@ -682,7 +681,7 @@ 
         $countries = $this->checkout->action === 'process_reg_step'
             ? EEM_Country::instance()->get_all_countries()
             : EEM_Country::instance()->get_all_active_countries();
-        if (! empty($countries)) {
+        if ( ! empty($countries)) {
             foreach ($countries as $country) {
                 if ($country instanceof EE_Country) {
                     $country_options[$country->ID()] = $country->name();
@@ -732,7 +731,7 @@ 
         $states        = $this->checkout->action === 'process_reg_step'
             ? EEM_State::instance()->get_all_states()
             : EEM_State::instance()->get_all_active_states();
-        if (! empty($states)) {
+        if ( ! empty($states)) {
             foreach ($states as $state) {
                 if ($state instanceof EE_State) {
                     $state_options[$state->country()->name()][$state->ID()] = $state->name();
@@ -784,7 +783,7 @@ 
             );
             return false;
         }
-        if (! $this->checkout->transaction instanceof EE_Transaction || ! $this->checkout->continue_reg) {
+        if ( ! $this->checkout->transaction instanceof EE_Transaction || ! $this->checkout->continue_reg) {
             EE_Error::add_error(
                 esc_html__(
                     'A valid transaction could not be initiated for processing your registrations.',
@@ -801,10 +800,10 @@ 
         // verify we got the goods
         if (empty($registrations)) {
             //combine the old translated string with a new one, in order to not break translations
-            $error_message = esc_html__( 'Your form data could not be applied to any valid registrations.', 'event_espresso' )
+            $error_message = esc_html__('Your form data could not be applied to any valid registrations.', 'event_espresso')
                              . sprintf(
                                  esc_html__('%3$sThis can sometimes happen if too much time has been taken to complete the registration process.%3$sPlease return to the %1$sEvent List%2$s and reselect your tickets. If the problem continues, please contact the site administrator.', 'event_espresso'),
-                                 '<a href="' . get_post_type_archive_link('espresso_events') . '" >',
+                                 '<a href="'.get_post_type_archive_link('espresso_events').'" >',
                                  '</a>',
                                  '<br />'
                              );
@@ -823,7 +822,7 @@ 
         if ($registrations_processed === false) {
             // but return immediately if the previous step exited early due to errors
             return false;
-        } elseif (! $this->checkout->revisit && $registrations_processed !== $this->checkout->total_ticket_count) {
+        } elseif ( ! $this->checkout->revisit && $registrations_processed !== $this->checkout->total_ticket_count) {
             // generate a correctly translated string for all possible singular/plural combinations
             if ($this->checkout->total_ticket_count === 1 && $registrations_processed !== 1) {
                 $error_msg = sprintf(
@@ -904,7 +903,7 @@ 
         // grab the saved registrations from the transaction
         foreach ($registrations as $registration) {
             // verify EE_Registration object
-            if (! $registration instanceof EE_Registration) {
+            if ( ! $registration instanceof EE_Registration) {
                 EE_Error::add_error(
                     esc_html__(
                         'An invalid Registration object was discovered when attempting to process your registration information.',
@@ -919,12 +918,12 @@ 
             /** @var string $reg_url_link */
             $reg_url_link = $registration->reg_url_link();
             // reg_url_link exists ?
-            if (! empty($reg_url_link)) {
+            if ( ! empty($reg_url_link)) {
                 // should this registration be processed during this visit ?
                 if ($this->checkout->visit_allows_processing_of_this_registration($registration)) {
                     // if NOT revisiting, then let's save the registration now,
                     // so that we have a REG_ID to use when generating other objects
-                    if (! $this->checkout->revisit) {
+                    if ( ! $this->checkout->revisit) {
                         $registration->save();
                     }
                     /**
@@ -959,7 +958,7 @@ 
                             ? true
                             : false;
                         // filter form input data for this registration
-                        $valid_data[$reg_url_link] = (array)apply_filters(
+                        $valid_data[$reg_url_link] = (array) apply_filters(
                             'FHEE__EE_Single_Page_Checkout__process_attendee_information__valid_data_line_item',
                             $valid_data[$reg_url_link]
                         );
@@ -971,11 +970,11 @@ 
                         }
                         // now loop through our array of valid post data && process attendee reg forms
                         foreach ($valid_data[$reg_url_link] as $form_section => $form_inputs) {
-                            if (! in_array($form_section, $non_input_form_sections)) {
+                            if ( ! in_array($form_section, $non_input_form_sections)) {
                                 foreach ($form_inputs as $form_input => $input_value) {
                                     // \EEH_Debug_Tools::printr( $input_value, $form_input, __FILE__, __LINE__ );
                                     // check for critical inputs
-                                    if (! $this->_verify_critical_attendee_details_are_set_and_validate_email(
+                                    if ( ! $this->_verify_critical_attendee_details_are_set_and_validate_email(
                                         $form_input,
                                         $input_value
                                     )
@@ -995,7 +994,7 @@ 
                                         $input_value = $primary_registrant[$form_input];
                                     }
                                     // now attempt to save the input data
-                                    if (! $this->_save_registration_form_input(
+                                    if ( ! $this->_save_registration_form_input(
                                         $registration,
                                         $form_input,
                                         $input_value
@@ -1051,7 +1050,7 @@ 
                     // add relation to registration, set attendee ID, and cache attendee
                     $this->_associate_attendee_with_registration($registration, $attendee);
                     // \EEH_Debug_Tools::printr( $registration, '$registration', __FILE__, __LINE__ );
-                    if (! $registration->attendee() instanceof EE_Attendee) {
+                    if ( ! $registration->attendee() instanceof EE_Attendee) {
                         EE_Error::add_error(
                             sprintf(
                                 esc_html__(
@@ -1146,7 +1145,7 @@ 
          * @see https://events.codebasehq.com/projects/event-espresso/tickets/10477
          */
         $answer_cache_id = $this->checkout->reg_url_link
-            ? $form_input . '-' . $registration->reg_url_link()
+            ? $form_input.'-'.$registration->reg_url_link()
             : $form_input;
         $answer_is_obj   = isset($this->_registration_answers[$answer_cache_id])
                            && $this->_registration_answers[$answer_cache_id] instanceof EE_Answer
@@ -1167,10 +1166,10 @@ 
                 break;
 
             default:
-                $ATT_input = 'ATT_' . $form_input;
+                $ATT_input = 'ATT_'.$form_input;
                 //EEH_Debug_Tools::printr( $ATT_input, '$ATT_input', __FILE__, __LINE__ );
                 $attendee_property = EEM_Attendee::instance()->has_field($ATT_input) ? true : false;
-                $form_input        = $attendee_property ? 'ATT_' . $form_input : $form_input;
+                $form_input        = $attendee_property ? 'ATT_'.$form_input : $form_input;
         }
         // EEH_Debug_Tools::printr( $answer_cache_id, '$answer_cache_id', __FILE__, __LINE__ );
         // EEH_Debug_Tools::printr( $attendee_property, '$attendee_property', __FILE__, __LINE__ );
@@ -1215,7 +1214,7 @@ 
     ) {
         if (empty($input_value)) {
             // if the form input isn't marked as being required, then just return
-            if (! isset($this->_required_questions[$form_input]) || ! $this->_required_questions[$form_input]) {
+            if ( ! isset($this->_required_questions[$form_input]) || ! $this->_required_questions[$form_input]) {
                 return true;
             }
             switch ($form_input) {
@@ -1302,7 +1301,7 @@ 
             'FHEE__EE_SPCO_Reg_Step_Attendee_Information__merge_address_details_with_critical_attendee_details',
             false
         )) {
-            $address_details           = array(
+            $address_details = array(
                 'ATT_address',
                 'ATT_address2',
                 'ATT_city',
@@ -1314,7 +1313,7 @@ 
             $critical_attendee_details = array_merge($critical_attendee_details, $address_details);
         }
         foreach ($critical_attendee_details as $critical_attendee_detail) {
-            if (! isset($attendee_data[$critical_attendee_detail])
+            if ( ! isset($attendee_data[$critical_attendee_detail])
                 || empty($attendee_data[$critical_attendee_detail])
             ) {
                 $attendee_data[$critical_attendee_detail] = $this->checkout->primary_attendee_obj->get(

core/services/request/middleware/RecommendedVersions.php

Indentation +175 added lines, -175 removed lines

@@ -23,186 +23,186 @@
 class RecommendedVersions extends Middleware
 {
 
-    /**
-     * converts a Request to a Response
-     *
-     * @param RequestInterface $request
-     * @param ResponseInterface      $response
-     * @return ResponseInterface
-     * @throws InvalidDataTypeException
-     */
-    public function handleRequest(RequestInterface $request, ResponseInterface $response)
-    {
-        $this->request  = $request;
-        $this->response = $response;
-        // check required WP version
-        if (! $this->minimumWordPressVersionRequired()) {
-            $this->request->unSetRequestParam('activate', true);
-            add_action('admin_notices', array($this, 'minimum_wp_version_error'), 1);
-            $this->response->terminateRequest();
-            $this->response->deactivatePlugin();
-        }
-        // check recommended PHP version
-        if (! $this->minimumPhpVersionRecommended()) {
-            $this->displayMinimumRecommendedPhpVersionNotice();
-        }
-        //upcoming required version
-        if (! $this->upcomingRequiredPhpVersion()) {
-            $this->displayUpcomingRequiredVersion();
-        }
-        $this->response = $this->processRequestStack($this->request, $this->response);
-        return $this->response;
-    }
-
-
-    /**
-     * Helper method to assess installed wp version against given values.
-     * By default this compares the required minimum version of WP for EE against the installed version of WP
-     * Note, $wp_version is the first parameter sent into the PHP version_compare function (what is being checked
-     * against) so consider that when sending in your values.
-     *
-     * @param string $version_to_check
-     * @param string $operator
-     * @return bool
-     */
-    public static function compareWordPressVersion($version_to_check = EE_MIN_WP_VER_REQUIRED, $operator = '>=')
-    {
-        global $wp_version;
-        return version_compare(
-        // first account for wp_version being pre-release
-        // (like RC, beta etc) which are usually in the format like 4.7-RC3-39519
-            strpos($wp_version, '-') > 0
-                ? substr($wp_version, 0, strpos($wp_version, '-'))
-                : $wp_version,
-            $version_to_check,
-            $operator
-        );
-    }
-
-
-
-    /**
-     * @return boolean
-     */
-    private function minimumWordPressVersionRequired()
-    {
-        return RecommendedVersions::compareWordPressVersion();
-    }
-
-
-
-    /**
-     * @param string $min_version
-     * @return boolean
-     */
-    private function checkPhpVersion($min_version = EE_MIN_PHP_VER_RECOMMENDED)
-    {
-        return version_compare(PHP_VERSION, $min_version, '>=') ? true : false;
-    }
-
-
-
-    /**
-     * @return boolean
-     */
-    private function minimumPhpVersionRecommended()
-    {
-        return $this->checkPhpVersion();
-    }
-
-
-
-    /**
-     * @return void
-     */
-    public function minimumWpVersionError()
-    {
-        global $wp_version;
-        ?>
+	/**
+	 * converts a Request to a Response
+	 *
+	 * @param RequestInterface $request
+	 * @param ResponseInterface      $response
+	 * @return ResponseInterface
+	 * @throws InvalidDataTypeException
+	 */
+	public function handleRequest(RequestInterface $request, ResponseInterface $response)
+	{
+		$this->request  = $request;
+		$this->response = $response;
+		// check required WP version
+		if (! $this->minimumWordPressVersionRequired()) {
+			$this->request->unSetRequestParam('activate', true);
+			add_action('admin_notices', array($this, 'minimum_wp_version_error'), 1);
+			$this->response->terminateRequest();
+			$this->response->deactivatePlugin();
+		}
+		// check recommended PHP version
+		if (! $this->minimumPhpVersionRecommended()) {
+			$this->displayMinimumRecommendedPhpVersionNotice();
+		}
+		//upcoming required version
+		if (! $this->upcomingRequiredPhpVersion()) {
+			$this->displayUpcomingRequiredVersion();
+		}
+		$this->response = $this->processRequestStack($this->request, $this->response);
+		return $this->response;
+	}
+
+
+	/**
+	 * Helper method to assess installed wp version against given values.
+	 * By default this compares the required minimum version of WP for EE against the installed version of WP
+	 * Note, $wp_version is the first parameter sent into the PHP version_compare function (what is being checked
+	 * against) so consider that when sending in your values.
+	 *
+	 * @param string $version_to_check
+	 * @param string $operator
+	 * @return bool
+	 */
+	public static function compareWordPressVersion($version_to_check = EE_MIN_WP_VER_REQUIRED, $operator = '>=')
+	{
+		global $wp_version;
+		return version_compare(
+		// first account for wp_version being pre-release
+		// (like RC, beta etc) which are usually in the format like 4.7-RC3-39519
+			strpos($wp_version, '-') > 0
+				? substr($wp_version, 0, strpos($wp_version, '-'))
+				: $wp_version,
+			$version_to_check,
+			$operator
+		);
+	}
+
+
+
+	/**
+	 * @return boolean
+	 */
+	private function minimumWordPressVersionRequired()
+	{
+		return RecommendedVersions::compareWordPressVersion();
+	}
+
+
+
+	/**
+	 * @param string $min_version
+	 * @return boolean
+	 */
+	private function checkPhpVersion($min_version = EE_MIN_PHP_VER_RECOMMENDED)
+	{
+		return version_compare(PHP_VERSION, $min_version, '>=') ? true : false;
+	}
+
+
+
+	/**
+	 * @return boolean
+	 */
+	private function minimumPhpVersionRecommended()
+	{
+		return $this->checkPhpVersion();
+	}
+
+
+
+	/**
+	 * @return void
+	 */
+	public function minimumWpVersionError()
+	{
+		global $wp_version;
+		?>
         <div class="error">
             <p>
                 <?php
-                printf(
-                    __('We\'re sorry, but Event Espresso requires WordPress version %1$s or greater in order to operate. You are currently running version %2$s.%3$sFor information on how to update your version of WordPress, please go to %4$s.',
-                        'event_espresso'),
-                    EE_MIN_WP_VER_REQUIRED,
-                    $wp_version,
-                    '<br/>',
-                    '<a href="http://codex.wordpress.org/Updating_WordPress">http://codex.wordpress.org/Updating_WordPress</a>'
-                );
-                ?>
+				printf(
+					__('We\'re sorry, but Event Espresso requires WordPress version %1$s or greater in order to operate. You are currently running version %2$s.%3$sFor information on how to update your version of WordPress, please go to %4$s.',
+						'event_espresso'),
+					EE_MIN_WP_VER_REQUIRED,
+					$wp_version,
+					'<br/>',
+					'<a href="http://codex.wordpress.org/Updating_WordPress">http://codex.wordpress.org/Updating_WordPress</a>'
+				);
+				?>
             </p>
         </div>
         <?php
-    }
-
-
-
-    /**
-     *    _display_minimum_recommended_php_version_notice
-     *
-     * @access private
-     * @return void
-     * @throws InvalidDataTypeException
-     */
-    private function displayMinimumRecommendedPhpVersionNotice()
-    {
-        if ($this->request->isAdmin()) {
-            new PersistentAdminNotice(
-                'php_version_' . str_replace('.', '-', EE_MIN_PHP_VER_RECOMMENDED) . '_recommended',
-                sprintf(
-                    esc_html__(
-                        'Event Espresso recommends PHP version %1$s or greater for optimal performance. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
-                        'event_espresso'
-                    ),
-                    EE_MIN_PHP_VER_RECOMMENDED,
-                    PHP_VERSION,
-                    '<br/>',
-                    '<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
-                )
-            );
-        }
-    }
-
-
-    /**
-     * Returns whether the provided php version number is greater than the current version of php installed on the server.
-     *
-     * @param string $version_required
-     * @return bool
-     */
-    private function upcomingRequiredPhpVersion($version_required = '5.5')
-    {
-        return $this->checkPhpVersion($version_required);
-    }
-
-
-    /**
-     *  Sets a notice for an upcoming required version of PHP in the next update of EE core.
-     */
-    private function displayUpcomingRequiredVersion()
-    {
-        if ($this->request->isAdmin()
-            && apply_filters('FHEE__EE_Recommended_Versions__displayUpcomingRequiredVersion', true, $this->request)
-            && current_user_can('update_plugins')
-        ) {
-            add_action('admin_notices', function ()
-            {
-                echo '<div class="notice event-espresso-admin-notice notice-warning"><p>'
-                     . sprintf(
-                         esc_html__(
-                             'Please note: The next update of Event Espresso 4 will %1$srequire%2$s PHP 5.4.45 or greater.  Your web server\'s PHP version is %3$s.  You can contact your host and ask them to update your PHP version to at least PHP 5.6.  Please do not update to the new version of Event Espresso 4 until the PHP update is completed. Read about why keeping your server on the latest version of PHP is a good idea %4$shere%5$s',
-                             'event_espresso'
-                         ),
-                         '<strong>',
-                         '</strong>',
-                         PHP_VERSION,
-                         '<a href="https://wordpress.org/support/upgrade-php/">',
-                         '</a>'
-                     )
-                     . '</p></div>';
-            });
-        }
-    }
+	}
+
+
+
+	/**
+	 *    _display_minimum_recommended_php_version_notice
+	 *
+	 * @access private
+	 * @return void
+	 * @throws InvalidDataTypeException
+	 */
+	private function displayMinimumRecommendedPhpVersionNotice()
+	{
+		if ($this->request->isAdmin()) {
+			new PersistentAdminNotice(
+				'php_version_' . str_replace('.', '-', EE_MIN_PHP_VER_RECOMMENDED) . '_recommended',
+				sprintf(
+					esc_html__(
+						'Event Espresso recommends PHP version %1$s or greater for optimal performance. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
+						'event_espresso'
+					),
+					EE_MIN_PHP_VER_RECOMMENDED,
+					PHP_VERSION,
+					'<br/>',
+					'<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
+				)
+			);
+		}
+	}
+
+
+	/**
+	 * Returns whether the provided php version number is greater than the current version of php installed on the server.
+	 *
+	 * @param string $version_required
+	 * @return bool
+	 */
+	private function upcomingRequiredPhpVersion($version_required = '5.5')
+	{
+		return $this->checkPhpVersion($version_required);
+	}
+
+
+	/**
+	 *  Sets a notice for an upcoming required version of PHP in the next update of EE core.
+	 */
+	private function displayUpcomingRequiredVersion()
+	{
+		if ($this->request->isAdmin()
+			&& apply_filters('FHEE__EE_Recommended_Versions__displayUpcomingRequiredVersion', true, $this->request)
+			&& current_user_can('update_plugins')
+		) {
+			add_action('admin_notices', function ()
+			{
+				echo '<div class="notice event-espresso-admin-notice notice-warning"><p>'
+					 . sprintf(
+						 esc_html__(
+							 'Please note: The next update of Event Espresso 4 will %1$srequire%2$s PHP 5.4.45 or greater.  Your web server\'s PHP version is %3$s.  You can contact your host and ask them to update your PHP version to at least PHP 5.6.  Please do not update to the new version of Event Espresso 4 until the PHP update is completed. Read about why keeping your server on the latest version of PHP is a good idea %4$shere%5$s',
+							 'event_espresso'
+						 ),
+						 '<strong>',
+						 '</strong>',
+						 PHP_VERSION,
+						 '<a href="https://wordpress.org/support/upgrade-php/">',
+						 '</a>'
+					 )
+					 . '</p></div>';
+			});
+		}
+	}
 }
 // Location: RecommendedVersions.php

Spacing +5 added lines, -5 removed lines

@@ -36,18 +36,18 @@ 
         $this->request  = $request;
         $this->response = $response;
         // check required WP version
-        if (! $this->minimumWordPressVersionRequired()) {
+        if ( ! $this->minimumWordPressVersionRequired()) {
             $this->request->unSetRequestParam('activate', true);
             add_action('admin_notices', array($this, 'minimum_wp_version_error'), 1);
             $this->response->terminateRequest();
             $this->response->deactivatePlugin();
         }
         // check recommended PHP version
-        if (! $this->minimumPhpVersionRecommended()) {
+        if ( ! $this->minimumPhpVersionRecommended()) {
             $this->displayMinimumRecommendedPhpVersionNotice();
         }
         //upcoming required version
-        if (! $this->upcomingRequiredPhpVersion()) {
+        if ( ! $this->upcomingRequiredPhpVersion()) {
             $this->displayUpcomingRequiredVersion();
         }
         $this->response = $this->processRequestStack($this->request, $this->response);
@@ -149,7 +149,7 @@ 
     {
         if ($this->request->isAdmin()) {
             new PersistentAdminNotice(
-                'php_version_' . str_replace('.', '-', EE_MIN_PHP_VER_RECOMMENDED) . '_recommended',
+                'php_version_'.str_replace('.', '-', EE_MIN_PHP_VER_RECOMMENDED).'_recommended',
                 sprintf(
                     esc_html__(
                         'Event Espresso recommends PHP version %1$s or greater for optimal performance. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
@@ -186,7 +186,7 @@ 
             && apply_filters('FHEE__EE_Recommended_Versions__displayUpcomingRequiredVersion', true, $this->request)
             && current_user_can('update_plugins')
         ) {
-            add_action('admin_notices', function ()
+            add_action('admin_notices', function()
             {
                 echo '<div class="notice event-espresso-admin-notice notice-warning"><p>'
                      . sprintf(