eventespresso / event-espresso-core

core/services/validators/URLValidator.php

Indentation +10 added lines, -10 removed lines

@@ -16,16 +16,16 @@
  */
 class URLValidator
 {
-    /**
-     * Returns whether or not the URL is valid
-     * @since $VID:$
-     * @param $url
-     * @return boolean
-     */
-    public function isValid($url)
-    {
-        return  esc_url_raw($url) === $url;
-    }
+	/**
+	 * Returns whether or not the URL is valid
+	 * @since $VID:$
+	 * @param $url
+	 * @return boolean
+	 */
+	public function isValid($url)
+	{
+		return  esc_url_raw($url) === $url;
+	}
 }
 // End of file URLValidator.php
 // Location: ${NAMESPACE}/URLValidator.php

core/libraries/form_sections/strategies/validation/EE_URL_Validation_Strategy.strategy.php

Indentation +63 added lines, -63 removed lines

@@ -16,75 +16,75 @@
 class EE_URL_Validation_Strategy extends EE_Validation_Strategy_Base
 {
 
-    /**
-     * @var @boolean whether we should check if the file exists or not
-     */
-    protected $check_file_exists;
+	/**
+	 * @var @boolean whether we should check if the file exists or not
+	 */
+	protected $check_file_exists;
 
-    /**
-     * @var URLValidator
-     */
-    protected $url_validator;
+	/**
+	 * @var URLValidator
+	 */
+	protected $url_validator;
 
-    /**
-     * @param null $validation_error_message
-     * @param boolean $check_file_exists
-     * @param URLValidator $url_validator
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function __construct(
-        $validation_error_message = null,
-        $check_file_exists = false,
-        URLValidator $url_validator = null
-    ) {
-        if (! $url_validator instanceof URLValidator) {
-            $url_validator = LoaderFactory::getLoader()->getShared('EventEspresso\core\services\validators\URLValidator');
-        }
-        $this->url_validator = $url_validator;
-        if (! $validation_error_message) {
-            $validation_error_message = __("Please enter a valid URL. Eg https://eventespresso.com", "event_espresso");
-        }
-        $this->check_file_exists = $check_file_exists;
-        parent::__construct($validation_error_message);
-    }
+	/**
+	 * @param null $validation_error_message
+	 * @param boolean $check_file_exists
+	 * @param URLValidator $url_validator
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function __construct(
+		$validation_error_message = null,
+		$check_file_exists = false,
+		URLValidator $url_validator = null
+	) {
+		if (! $url_validator instanceof URLValidator) {
+			$url_validator = LoaderFactory::getLoader()->getShared('EventEspresso\core\services\validators\URLValidator');
+		}
+		$this->url_validator = $url_validator;
+		if (! $validation_error_message) {
+			$validation_error_message = __("Please enter a valid URL. Eg https://eventespresso.com", "event_espresso");
+		}
+		$this->check_file_exists = $check_file_exists;
+		parent::__construct($validation_error_message);
+	}
 
 
 
-    /**
-     * just checks the field isn't blank
-     *
-     * @param $normalized_value
-     * @return bool
-     * @throws \EE_Validation_Error
-     */
-    public function validate($normalized_value)
-    {
-        if ($normalized_value) {
-            if (! $this->url_validator->isValid($normalized_value)) {
-                throw new EE_Validation_Error($this->get_validation_error_message(), 'invalid_url');
-            } elseif (apply_filters('FHEE__EE_URL_Validation_Strategy__validate__check_remote_file_exists', $this->check_file_exists, $this->_input)) {
-                if (! EEH_URL::remote_file_exists(
-                    $normalized_value,
-                    array(
-                            'sslverify' => false,
-                            'limit_response_size' => 4095,// we don't really care for a full response, but we do want headers at least. Lets just ask for a one block
-                        )
-                )) {
-                    throw new EE_Validation_Error(sprintf(__("That URL seems to be broken. Please enter a valid URL", "event_espresso")));
-                }
-            }
-        }
-    }
+	/**
+	 * just checks the field isn't blank
+	 *
+	 * @param $normalized_value
+	 * @return bool
+	 * @throws \EE_Validation_Error
+	 */
+	public function validate($normalized_value)
+	{
+		if ($normalized_value) {
+			if (! $this->url_validator->isValid($normalized_value)) {
+				throw new EE_Validation_Error($this->get_validation_error_message(), 'invalid_url');
+			} elseif (apply_filters('FHEE__EE_URL_Validation_Strategy__validate__check_remote_file_exists', $this->check_file_exists, $this->_input)) {
+				if (! EEH_URL::remote_file_exists(
+					$normalized_value,
+					array(
+							'sslverify' => false,
+							'limit_response_size' => 4095,// we don't really care for a full response, but we do want headers at least. Lets just ask for a one block
+						)
+				)) {
+					throw new EE_Validation_Error(sprintf(__("That URL seems to be broken. Please enter a valid URL", "event_espresso")));
+				}
+			}
+		}
+	}
 
 
 
-    /**
-     * @return array
-     */
-    public function get_jquery_validation_rule_array()
-    {
-        return array( 'validUrl'=>true, 'messages' => array( 'validUrl' => $this->get_validation_error_message() ) );
-    }
+	/**
+	 * @return array
+	 */
+	public function get_jquery_validation_rule_array()
+	{
+		return array( 'validUrl'=>true, 'messages' => array( 'validUrl' => $this->get_validation_error_message() ) );
+	}
 }

Spacing +6 added lines, -6 removed lines

@@ -39,11 +39,11 @@ 
         $check_file_exists = false,
         URLValidator $url_validator = null
     ) {
-        if (! $url_validator instanceof URLValidator) {
+        if ( ! $url_validator instanceof URLValidator) {
             $url_validator = LoaderFactory::getLoader()->getShared('EventEspresso\core\services\validators\URLValidator');
         }
         $this->url_validator = $url_validator;
-        if (! $validation_error_message) {
+        if ( ! $validation_error_message) {
             $validation_error_message = __("Please enter a valid URL. Eg https://eventespresso.com", "event_espresso");
         }
         $this->check_file_exists = $check_file_exists;
@@ -62,14 +62,14 @@ 
     public function validate($normalized_value)
     {
         if ($normalized_value) {
-            if (! $this->url_validator->isValid($normalized_value)) {
+            if ( ! $this->url_validator->isValid($normalized_value)) {
                 throw new EE_Validation_Error($this->get_validation_error_message(), 'invalid_url');
             } elseif (apply_filters('FHEE__EE_URL_Validation_Strategy__validate__check_remote_file_exists', $this->check_file_exists, $this->_input)) {
-                if (! EEH_URL::remote_file_exists(
+                if ( ! EEH_URL::remote_file_exists(
                     $normalized_value,
                     array(
                             'sslverify' => false,
-                            'limit_response_size' => 4095,// we don't really care for a full response, but we do want headers at least. Lets just ask for a one block
+                            'limit_response_size' => 4095, // we don't really care for a full response, but we do want headers at least. Lets just ask for a one block
                         )
                 )) {
                     throw new EE_Validation_Error(sprintf(__("That URL seems to be broken. Please enter a valid URL", "event_espresso")));
@@ -85,6 +85,6 @@ 
      */
     public function get_jquery_validation_rule_array()
     {
-        return array( 'validUrl'=>true, 'messages' => array( 'validUrl' => $this->get_validation_error_message() ) );
+        return array('validUrl'=>true, 'messages' => array('validUrl' => $this->get_validation_error_message()));
     }
 }

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

Indentation +23 added lines, -23 removed lines

@@ -14,27 +14,27 @@
 class EE_Admin_File_Uploader_Input extends EE_Form_Input_Base
 {
 
-    /**
-     * @param array $input_settings
-     * @throws InvalidArgumentException
-     * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    public function __construct($input_settings = array())
-    {
-        $this->_set_display_strategy(new EE_Admin_File_Uploader_Display_Strategy());
-        $this->_set_normalization_strategy(new EE_Text_Normalization());
-        $this->_add_validation_strategy(
-            LoaderFactory::getLoader()->getNew(
-                'EE_URL_Validation_Strategy',
-                array(
-                    isset($input_settings['validation_error_message'])
-                        ? $input_settings['validation_error_message']
-                        : null,
-                    true
-                )
-            )
-        );
-        parent::__construct($input_settings);
-    }
+	/**
+	 * @param array $input_settings
+	 * @throws InvalidArgumentException
+	 * @throws \EventEspresso\core\exceptions\InvalidDataTypeException
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	public function __construct($input_settings = array())
+	{
+		$this->_set_display_strategy(new EE_Admin_File_Uploader_Display_Strategy());
+		$this->_set_normalization_strategy(new EE_Text_Normalization());
+		$this->_add_validation_strategy(
+			LoaderFactory::getLoader()->getNew(
+				'EE_URL_Validation_Strategy',
+				array(
+					isset($input_settings['validation_error_message'])
+						? $input_settings['validation_error_message']
+						: null,
+					true
+				)
+			)
+		);
+		parent::__construct($input_settings);
+	}
 }

core/db_classes/EE_Question.class.php

Indentation +657 added lines, -657 removed lines

@@ -14,661 +14,661 @@
 class EE_Question extends EE_Soft_Delete_Base_Class implements EEI_Duplicatable
 {
 
-    /**
-     *
-     * @param array  $props_n_values          incoming values
-     * @param string $timezone                incoming timezone (if not set the timezone set for the website will be
-     *                                        used.)
-     * @param array  $date_formats            incoming date_formats in an array where the first value is the
-     *                                        date_format and the second value is the time format
-     * @return EE_Question
-     */
-    public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
-    {
-        $has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
-        return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
-    }
-
-
-    /**
-     * @param array  $props_n_values  incoming values from the database
-     * @param string $timezone        incoming timezone as set by the model.  If not set the timezone for
-     *                                the website will be used.
-     * @return EE_Question
-     */
-    public static function new_instance_from_db($props_n_values = array(), $timezone = null)
-    {
-        return new self($props_n_values, true, $timezone);
-    }
-
-
-    /**
-     *        Set    Question display text
-     *
-     * @access        public
-     * @param string $QST_display_text
-     */
-    public function set_display_text($QST_display_text = '')
-    {
-        $this->set('QST_display_text', $QST_display_text);
-    }
-
-
-    /**
-     *        Set    Question admin text
-     *
-     * @access        public
-     * @param        string $QST_admin_label
-     */
-    public function set_admin_label($QST_admin_label = '')
-    {
-        $this->set('QST_admin_label', $QST_admin_label);
-    }
-
-
-    /**
-     *        Set    system name
-     *
-     * @access        public
-     * @param        mixed $QST_system
-     */
-    public function set_system_ID($QST_system = '')
-    {
-        $this->set('QST_system', $QST_system);
-    }
-
-
-    /**
-     *        Set    question's type
-     *
-     * @access        public
-     * @param        string $QST_type
-     */
-    public function set_question_type($QST_type = '')
-    {
-        $this->set('QST_type', $QST_type);
-    }
-
-
-    /**
-     *        Sets whether this question must be answered when presented in a form
-     *
-     * @access        public
-     * @param        bool $QST_required
-     */
-    public function set_required($QST_required = false)
-    {
-        $this->set('QST_required', $QST_required);
-    }
-
-
-    /**
-     *        Set    Question display text
-     *
-     * @access        public
-     * @param        string $QST_required_text
-     */
-    public function set_required_text($QST_required_text = '')
-    {
-        $this->set('QST_required_text', $QST_required_text);
-    }
-
-
-    /**
-     *        Sets the order of this question when placed in a sequence of questions
-     *
-     * @access        public
-     * @param        int $QST_order
-     */
-    public function set_order($QST_order = 0)
-    {
-        $this->set('QST_order', $QST_order);
-    }
-
-
-    /**
-     *        Sets whether the question is admin-only
-     *
-     * @access        public
-     * @param        bool $QST_admin_only
-     */
-    public function set_admin_only($QST_admin_only = false)
-    {
-        $this->set('QST_admin_only', $QST_admin_only);
-    }
-
-
-    /**
-     *        Sets the wordpress user ID on the question
-     *
-     * @access        public
-     * @param        int $QST_wp_user
-     */
-    public function set_wp_user($QST_wp_user = 1)
-    {
-        $this->set('QST_wp_user', $QST_wp_user);
-    }
-
-
-    /**
-     *        Sets whether the question has been deleted
-     *        (we use this boolean instead of actually
-     *        deleting it because when users delete this question
-     *        they really want to remove the question from future
-     *        forms, BUT keep their old answers which depend
-     *        on this record actually existing.
-     *
-     * @access        public
-     * @param    bool $QST_deleted
-     */
-    public function set_deleted($QST_deleted = false)
-    {
-        $this->set('QST_deleted', $QST_deleted);
-    }
-
-
-    /**
-     * returns the text for displaying the question to users
-     *
-     * @access public
-     * @return string
-     */
-    public function display_text()
-    {
-        return $this->get('QST_display_text');
-    }
-
-
-    /**
-     * returns the text for the administrative label
-     *
-     * @access public
-     * @return string
-     */
-    public function admin_label()
-    {
-        return $this->get('QST_admin_label');
-    }
-
-
-    /**
-     * returns the attendee column name for this question
-     *
-     * @access public
-     * @return string
-     */
-    public function system_ID()
-    {
-        return $this->get('QST_system');
-    }
-
-
-    /**
-     * returns either a string of 'text', 'textfield', etc.
-     *
-     * @access public
-     * @return boolean
-     */
-    public function required()
-    {
-        return $this->get('QST_required');
-    }
-
-
-    /**
-     * returns the text which should be displayed when a user
-     * doesn't answer this question in a form
-     *
-     * @access public
-     * @return string
-     */
-    public function required_text()
-    {
-        return $this->get('QST_required_text');
-    }
-
-
-    /**
-     * returns the type of this question
-     *
-     * @access public
-     * @return string
-     */
-    public function type()
-    {
-        return $this->get('QST_type');
-    }
-
-
-    /**
-     * returns an integer showing where this question should
-     * be placed in a sequence of questions
-     *
-     * @access public
-     * @return int
-     */
-    public function order()
-    {
-        return $this->get('QST_order');
-    }
-
-
-    /**
-     * returns whether this question should only appears to admins,
-     * or to everyone
-     *
-     * @access public
-     * @return boolean
-     */
-    public function admin_only()
-    {
-        return $this->get('QST_admin_only');
-    }
-
-
-    /**
-     * returns the id the wordpress user who created this question
-     *
-     * @access public
-     * @return int
-     */
-    public function wp_user()
-    {
-        return $this->get('QST_wp_user');
-    }
-
-
-    /**
-     * returns whether this question has been marked as 'deleted'
-     *
-     * @access public
-     * @return boolean
-     */
-    public function deleted()
-    {
-        return $this->get('QST_deleted');
-    }
-
-
-    /**
-     * Gets an array of related EE_Answer  to this EE_Question
-     *
-     * @return EE_Answer[]
-     */
-    public function answers()
-    {
-        return $this->get_many_related('Answer');
-    }
-
-
-    /**
-     * Boolean check for if there are answers on this question in th db
-     *
-     * @return boolean true = has answers, false = no answers.
-     */
-    public function has_answers()
-    {
-        return $this->count_related('Answer') > 0 ? true : false;
-    }
-
-
-    /**
-     * gets an array of EE_Question_Group which relate to this question
-     *
-     * @return EE_Question_Group[]
-     */
-    public function question_groups()
-    {
-        return $this->get_many_related('Question_Group');
-    }
-
-
-    /**
-     * Returns all the options for this question. By default, it returns only the not-yet-deleted ones.
-     *
-     * @param boolean      $notDeletedOptionsOnly            1
-     *                                                       whether to return ALL options, or only the ones which have
-     *                                                       not yet been deleleted
-     * @param string|array $selected_value_to_always_include , when retrieving options to an ANSWERED question,
-     *                                                       we want to usually only show non-deleted options AND the
-     *                                                       value that was selected for the answer, whether it was
-     *                                                       trashed or not.
-     * @return EE_Question_Option[]
-     */
-    public function options($notDeletedOptionsOnly = true, $selected_value_to_always_include = null)
-    {
-        if (! $this->ID()) {
-            return array();
-        }
-        $query_params = array();
-        if ($selected_value_to_always_include) {
-            if (is_array($selected_value_to_always_include)) {
-                $query_params[0]['OR*options-query']['QSO_value'] = array('IN', $selected_value_to_always_include);
-            } else {
-                $query_params[0]['OR*options-query']['QSO_value'] = $selected_value_to_always_include;
-            }
-        }
-        if ($notDeletedOptionsOnly) {
-            $query_params[0]['OR*options-query']['QSO_deleted'] = false;
-        }
-        // order by QSO_order
-        $query_params['order_by'] = array('QSO_order' => 'ASC');
-        return $this->get_many_related('Question_Option', $query_params);
-    }
-
-
-    /**
-     * returns an array of EE_Question_Options which relate to this question
-     *
-     * @return \EE_Question_Option[]
-     */
-    public function temp_options()
-    {
-        return $this->_model_relations['Question_Option'];
-    }
-
-
-    /**
-     * Adds an option for this question. Note: if the option were previously associated with a different
-     * Question, that relationship will be overwritten.
-     *
-     * @param EE_Question_Option $option
-     * @return boolean success
-     */
-    public function add_option(EE_Question_Option $option)
-    {
-        return $this->_add_relation_to($option, 'Question_Option');
-    }
-
-
-    /**
-     * Adds an option directly to this question without saving to the db
-     *
-     * @param EE_Question_Option $option
-     * @return boolean success
-     */
-    public function add_temp_option(EE_Question_Option $option)
-    {
-        $this->_model_relations['Question_Option'][] = $option;
-        return true;
-    }
-
-
-    /**
-     * Marks the option as deleted.
-     *
-     * @param EE_Question_Option $option
-     * @return boolean success
-     */
-    public function remove_option(EE_Question_Option $option)
-    {
-        return $this->_remove_relation_to($option, 'Question_Option');
-    }
-
-
-    /**
-     * @return bool
-     */
-    public function is_system_question()
-    {
-        $system_ID = $this->get('QST_system');
-        return ! empty($system_ID) ? true : false;
-    }
-
-
-    /**
-     * The purpose of this method is set the question order this question order to be the max out of all questions
-     *
-     * @access public
-     * @return void
-     */
-    public function set_order_to_latest()
-    {
-        $latest_order = $this->get_model()->get_latest_question_order();
-        $latest_order++;
-        $this->set('QST_order', $latest_order);
-    }
-
-
-    /**
-     * Retrieves the list of allowed question types from the model.
-     *
-     * @return string[]
-     */
-    private function _allowed_question_types()
-    {
-        $questionModel = $this->get_model();
-        /* @var $questionModel EEM_Question */
-        return $questionModel->allowed_question_types();
-    }
-
-    /**
-     * Duplicates this question and its question options
-     *
-     * @return \EE_Question
-     */
-    public function duplicate($options = array())
-    {
-        $new_question = clone $this;
-        $new_question->set('QST_ID', null);
-        $new_question->set_display_text(sprintf(__('%s **Duplicate**', 'event_espresso'), $this->display_text()));
-        $new_question->set_admin_label(sprintf(__('%s **Duplicate**', 'event_espresso'), $this->admin_label()));
-        $new_question->set_system_ID(null);
-        $new_question->set_wp_user(get_current_user_id());
-        // if we're duplicating a trashed question, assume we don't want the new one to be trashed
-        $new_question->set_deleted(false);
-        $success = $new_question->save();
-        if ($success) {
-            // we don't totally want to duplicate the question options, because we want them to be for the NEW question
-            foreach ($this->options() as $question_option) {
-                $question_option->duplicate(array('QST_ID' => $new_question->ID()));
-            }
-            return $new_question;
-        } else {
-            return null;
-        }
-    }
-
-    /**
-     * Returns the question's maximum allowed response size
-     *
-     * @return int|float
-     */
-    public function max()
-    {
-        return $this->get('QST_max');
-    }
-
-    /**
-     * Sets the question's maximum allowed response size
-     *
-     * @param int|float $new_max
-     * @return void
-     */
-    public function set_max($new_max)
-    {
-        $this->set('QST_max', $new_max);
-    }
-
-
-    /**
-     * Creates a form input from this question which can be used in HTML forms
-     *
-     * @param EE_Registration $registration
-     * @param EE_Answer       $answer
-     * @param array           $input_constructor_args
-     * @return EE_Form_Input_Base
-     */
-    public function generate_form_input($registration = null, $answer = null, $input_constructor_args = array())
-    {
-        $identifier = $this->is_system_question() ? $this->system_ID() : $this->ID();
-
-        $input_constructor_args = array_merge(
-            array(
-                'required'                          => $this->required() ? true : false,
-                'html_label_text'                   => $this->display_text(),
-                'required_validation_error_message' => $this->required_text(),
-            ),
-            $input_constructor_args
-        );
-        if (! $answer instanceof EE_Answer && $registration instanceof EE_Registration) {
-            $answer = EEM_Answer::instance()->get_registration_question_answer_object($registration, $this->ID());
-        }
-        // has this question been answered ?
-        if ($answer instanceof EE_Answer
-            && $answer->value() !== ''
-        ) {
-            // answer gets htmlspecialchars called on it, undo that please
-            // because the form input's display strategy may call esc_attr too
-            // which also does html special characters
-            $values_with_html_special_chars = $answer->value();
-            if (is_array($values_with_html_special_chars)) {
-                $default_value = array_map('htmlspecialchars_decode', $values_with_html_special_chars);
-            } else {
-                $default_value = htmlspecialchars_decode($values_with_html_special_chars);
-            }
-            $input_constructor_args['default'] = $default_value;
-        }
-        $max_max_for_question = EEM_Question::instance()->absolute_max_for_system_question($this->system_ID());
-        if (in_array(
-            $this->type(),
-            EEM_Question::instance()->questionTypesWithMaxLength(),
-            true
-        )) {
-            $input_constructor_args['validation_strategies'][] = new EE_Max_Length_Validation_Strategy(
-                null,
-                min($max_max_for_question, $this->max())
-            );
-        }
-        $input_constructor_args = apply_filters(
-            'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__input_constructor_args',
-            $input_constructor_args,
-            $registration,
-            $this,
-            $answer
-        );
-
-        $result = null;
-        switch ($this->type()) {
-            // Text
-            case EEM_Question::QST_type_text:
-                $result = new EE_Text_Input($input_constructor_args);
-                break;
-            // Textarea
-            case EEM_Question::QST_type_textarea:
-                $result = new EE_Text_Area_Input($input_constructor_args);
-                break;
-            // Radio Buttons
-            case EEM_Question::QST_type_radio:
-                $result = new EE_Radio_Button_Input($this->options(), $input_constructor_args);
-                break;
-            // Dropdown
-            case EEM_Question::QST_type_dropdown:
-                $result = new EE_Select_Input($this->options(), $input_constructor_args);
-                break;
-            // State Dropdown
-            case EEM_Question::QST_type_state:
-                $state_options = apply_filters(
-                    'FHEE__EE_Question__generate_form_input__state_options',
-                    null,
-                    $this,
-                    $registration,
-                    $answer
-                );
-                $result = new EE_State_Select_Input($state_options, $input_constructor_args);
-                break;
-            // Country Dropdown
-            case EEM_Question::QST_type_country:
-                $country_options = apply_filters(
-                    'FHEE__EE_Question__generate_form_input__country_options',
-                    null,
-                    $this,
-                    $registration,
-                    $answer
-                );
-                $result = new EE_Country_Select_Input($country_options, $input_constructor_args);
-                break;
-            // Checkboxes
-            case EEM_Question::QST_type_checkbox:
-                $result = new EE_Checkbox_Multi_Input($this->options(), $input_constructor_args);
-                break;
-            // Date
-            case EEM_Question::QST_type_date:
-                $result = new EE_Datepicker_Input($input_constructor_args);
-                break;
-            case EEM_Question::QST_type_html_textarea:
-                $input_constructor_args['validation_strategies'][] = new EE_Simple_HTML_Validation_Strategy();
-                $result = new EE_Text_Area_Input($input_constructor_args);
-                $result->remove_validation_strategy('EE_Plaintext_Validation_Strategy');
-                break;
-            case EEM_Question::QST_type_email:
-                $result = new EE_Email_Input($input_constructor_args);
-                break;
-            case EEM_Question::QST_type_us_phone:
-                $result = new EE_Phone_Input($input_constructor_args);
-                break;
-            case EEM_Question::QST_type_int:
-                $result = new EE_Integer_Input($input_constructor_args);
-                break;
-            case EEM_Question::QST_type_decimal:
-                $result = new EE_Float_Input($input_constructor_args);
-                break;
-            case EEM_Question::QST_type_url:
-                $input_constructor_args['validation_strategies'][] = LoaderFactory::getLoader()->getNew('EE_URL_Validation_Strategy');
-                $result = new EE_Text_Input($input_constructor_args);
-                break;
-            case EEM_Question::QST_type_year:
-                $result = new EE_Year_Input(
-                    $input_constructor_args,
-                    apply_filters(
-                        'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__year_question__four_digit',
-                        true,
-                        $this
-                    ),
-                    apply_filters(
-                        'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__year_question__early_range',
-                        100,
-                        $this
-                    ),
-                    apply_filters(
-                        'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__year_question__end_range',
-                        100,
-                        $this
-                    )
-                );
-                break;
-            case EEM_Question::QST_type_multi_select:
-                $result = new EE_Select_Multiple_Input($this->options(), $input_constructor_args);
-                break;
-            // fallback
-            default:
-                $default_input = apply_filters(
-                    'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__default',
-                    null,
-                    $this->type(),
-                    $this,
-                    $input_constructor_args
-                );
-                if (! $default_input) {
-                    $default_input = new EE_Text_Input($input_constructor_args);
-                }
-                $result = $default_input;
-        }
-        return apply_filters('FHEE__EE_Question__generate_form_input__return', $result, $registration, $this, $answer);
-    }
-
-
-    /**
-     * Returns whether or not this question type should have question option entries
-     *
-     * @return bool
-     */
-    public function should_have_question_options()
-    {
-        return in_array(
-            $this->type(),
-            $this->_model->question_types_with_options(),
-            true
-        );
-    }
+	/**
+	 *
+	 * @param array  $props_n_values          incoming values
+	 * @param string $timezone                incoming timezone (if not set the timezone set for the website will be
+	 *                                        used.)
+	 * @param array  $date_formats            incoming date_formats in an array where the first value is the
+	 *                                        date_format and the second value is the time format
+	 * @return EE_Question
+	 */
+	public static function new_instance($props_n_values = array(), $timezone = null, $date_formats = array())
+	{
+		$has_object = parent::_check_for_object($props_n_values, __CLASS__, $timezone, $date_formats);
+		return $has_object ? $has_object : new self($props_n_values, false, $timezone, $date_formats);
+	}
+
+
+	/**
+	 * @param array  $props_n_values  incoming values from the database
+	 * @param string $timezone        incoming timezone as set by the model.  If not set the timezone for
+	 *                                the website will be used.
+	 * @return EE_Question
+	 */
+	public static function new_instance_from_db($props_n_values = array(), $timezone = null)
+	{
+		return new self($props_n_values, true, $timezone);
+	}
+
+
+	/**
+	 *        Set    Question display text
+	 *
+	 * @access        public
+	 * @param string $QST_display_text
+	 */
+	public function set_display_text($QST_display_text = '')
+	{
+		$this->set('QST_display_text', $QST_display_text);
+	}
+
+
+	/**
+	 *        Set    Question admin text
+	 *
+	 * @access        public
+	 * @param        string $QST_admin_label
+	 */
+	public function set_admin_label($QST_admin_label = '')
+	{
+		$this->set('QST_admin_label', $QST_admin_label);
+	}
+
+
+	/**
+	 *        Set    system name
+	 *
+	 * @access        public
+	 * @param        mixed $QST_system
+	 */
+	public function set_system_ID($QST_system = '')
+	{
+		$this->set('QST_system', $QST_system);
+	}
+
+
+	/**
+	 *        Set    question's type
+	 *
+	 * @access        public
+	 * @param        string $QST_type
+	 */
+	public function set_question_type($QST_type = '')
+	{
+		$this->set('QST_type', $QST_type);
+	}
+
+
+	/**
+	 *        Sets whether this question must be answered when presented in a form
+	 *
+	 * @access        public
+	 * @param        bool $QST_required
+	 */
+	public function set_required($QST_required = false)
+	{
+		$this->set('QST_required', $QST_required);
+	}
+
+
+	/**
+	 *        Set    Question display text
+	 *
+	 * @access        public
+	 * @param        string $QST_required_text
+	 */
+	public function set_required_text($QST_required_text = '')
+	{
+		$this->set('QST_required_text', $QST_required_text);
+	}
+
+
+	/**
+	 *        Sets the order of this question when placed in a sequence of questions
+	 *
+	 * @access        public
+	 * @param        int $QST_order
+	 */
+	public function set_order($QST_order = 0)
+	{
+		$this->set('QST_order', $QST_order);
+	}
+
+
+	/**
+	 *        Sets whether the question is admin-only
+	 *
+	 * @access        public
+	 * @param        bool $QST_admin_only
+	 */
+	public function set_admin_only($QST_admin_only = false)
+	{
+		$this->set('QST_admin_only', $QST_admin_only);
+	}
+
+
+	/**
+	 *        Sets the wordpress user ID on the question
+	 *
+	 * @access        public
+	 * @param        int $QST_wp_user
+	 */
+	public function set_wp_user($QST_wp_user = 1)
+	{
+		$this->set('QST_wp_user', $QST_wp_user);
+	}
+
+
+	/**
+	 *        Sets whether the question has been deleted
+	 *        (we use this boolean instead of actually
+	 *        deleting it because when users delete this question
+	 *        they really want to remove the question from future
+	 *        forms, BUT keep their old answers which depend
+	 *        on this record actually existing.
+	 *
+	 * @access        public
+	 * @param    bool $QST_deleted
+	 */
+	public function set_deleted($QST_deleted = false)
+	{
+		$this->set('QST_deleted', $QST_deleted);
+	}
+
+
+	/**
+	 * returns the text for displaying the question to users
+	 *
+	 * @access public
+	 * @return string
+	 */
+	public function display_text()
+	{
+		return $this->get('QST_display_text');
+	}
+
+
+	/**
+	 * returns the text for the administrative label
+	 *
+	 * @access public
+	 * @return string
+	 */
+	public function admin_label()
+	{
+		return $this->get('QST_admin_label');
+	}
+
+
+	/**
+	 * returns the attendee column name for this question
+	 *
+	 * @access public
+	 * @return string
+	 */
+	public function system_ID()
+	{
+		return $this->get('QST_system');
+	}
+
+
+	/**
+	 * returns either a string of 'text', 'textfield', etc.
+	 *
+	 * @access public
+	 * @return boolean
+	 */
+	public function required()
+	{
+		return $this->get('QST_required');
+	}
+
+
+	/**
+	 * returns the text which should be displayed when a user
+	 * doesn't answer this question in a form
+	 *
+	 * @access public
+	 * @return string
+	 */
+	public function required_text()
+	{
+		return $this->get('QST_required_text');
+	}
+
+
+	/**
+	 * returns the type of this question
+	 *
+	 * @access public
+	 * @return string
+	 */
+	public function type()
+	{
+		return $this->get('QST_type');
+	}
+
+
+	/**
+	 * returns an integer showing where this question should
+	 * be placed in a sequence of questions
+	 *
+	 * @access public
+	 * @return int
+	 */
+	public function order()
+	{
+		return $this->get('QST_order');
+	}
+
+
+	/**
+	 * returns whether this question should only appears to admins,
+	 * or to everyone
+	 *
+	 * @access public
+	 * @return boolean
+	 */
+	public function admin_only()
+	{
+		return $this->get('QST_admin_only');
+	}
+
+
+	/**
+	 * returns the id the wordpress user who created this question
+	 *
+	 * @access public
+	 * @return int
+	 */
+	public function wp_user()
+	{
+		return $this->get('QST_wp_user');
+	}
+
+
+	/**
+	 * returns whether this question has been marked as 'deleted'
+	 *
+	 * @access public
+	 * @return boolean
+	 */
+	public function deleted()
+	{
+		return $this->get('QST_deleted');
+	}
+
+
+	/**
+	 * Gets an array of related EE_Answer  to this EE_Question
+	 *
+	 * @return EE_Answer[]
+	 */
+	public function answers()
+	{
+		return $this->get_many_related('Answer');
+	}
+
+
+	/**
+	 * Boolean check for if there are answers on this question in th db
+	 *
+	 * @return boolean true = has answers, false = no answers.
+	 */
+	public function has_answers()
+	{
+		return $this->count_related('Answer') > 0 ? true : false;
+	}
+
+
+	/**
+	 * gets an array of EE_Question_Group which relate to this question
+	 *
+	 * @return EE_Question_Group[]
+	 */
+	public function question_groups()
+	{
+		return $this->get_many_related('Question_Group');
+	}
+
+
+	/**
+	 * Returns all the options for this question. By default, it returns only the not-yet-deleted ones.
+	 *
+	 * @param boolean      $notDeletedOptionsOnly            1
+	 *                                                       whether to return ALL options, or only the ones which have
+	 *                                                       not yet been deleleted
+	 * @param string|array $selected_value_to_always_include , when retrieving options to an ANSWERED question,
+	 *                                                       we want to usually only show non-deleted options AND the
+	 *                                                       value that was selected for the answer, whether it was
+	 *                                                       trashed or not.
+	 * @return EE_Question_Option[]
+	 */
+	public function options($notDeletedOptionsOnly = true, $selected_value_to_always_include = null)
+	{
+		if (! $this->ID()) {
+			return array();
+		}
+		$query_params = array();
+		if ($selected_value_to_always_include) {
+			if (is_array($selected_value_to_always_include)) {
+				$query_params[0]['OR*options-query']['QSO_value'] = array('IN', $selected_value_to_always_include);
+			} else {
+				$query_params[0]['OR*options-query']['QSO_value'] = $selected_value_to_always_include;
+			}
+		}
+		if ($notDeletedOptionsOnly) {
+			$query_params[0]['OR*options-query']['QSO_deleted'] = false;
+		}
+		// order by QSO_order
+		$query_params['order_by'] = array('QSO_order' => 'ASC');
+		return $this->get_many_related('Question_Option', $query_params);
+	}
+
+
+	/**
+	 * returns an array of EE_Question_Options which relate to this question
+	 *
+	 * @return \EE_Question_Option[]
+	 */
+	public function temp_options()
+	{
+		return $this->_model_relations['Question_Option'];
+	}
+
+
+	/**
+	 * Adds an option for this question. Note: if the option were previously associated with a different
+	 * Question, that relationship will be overwritten.
+	 *
+	 * @param EE_Question_Option $option
+	 * @return boolean success
+	 */
+	public function add_option(EE_Question_Option $option)
+	{
+		return $this->_add_relation_to($option, 'Question_Option');
+	}
+
+
+	/**
+	 * Adds an option directly to this question without saving to the db
+	 *
+	 * @param EE_Question_Option $option
+	 * @return boolean success
+	 */
+	public function add_temp_option(EE_Question_Option $option)
+	{
+		$this->_model_relations['Question_Option'][] = $option;
+		return true;
+	}
+
+
+	/**
+	 * Marks the option as deleted.
+	 *
+	 * @param EE_Question_Option $option
+	 * @return boolean success
+	 */
+	public function remove_option(EE_Question_Option $option)
+	{
+		return $this->_remove_relation_to($option, 'Question_Option');
+	}
+
+
+	/**
+	 * @return bool
+	 */
+	public function is_system_question()
+	{
+		$system_ID = $this->get('QST_system');
+		return ! empty($system_ID) ? true : false;
+	}
+
+
+	/**
+	 * The purpose of this method is set the question order this question order to be the max out of all questions
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function set_order_to_latest()
+	{
+		$latest_order = $this->get_model()->get_latest_question_order();
+		$latest_order++;
+		$this->set('QST_order', $latest_order);
+	}
+
+
+	/**
+	 * Retrieves the list of allowed question types from the model.
+	 *
+	 * @return string[]
+	 */
+	private function _allowed_question_types()
+	{
+		$questionModel = $this->get_model();
+		/* @var $questionModel EEM_Question */
+		return $questionModel->allowed_question_types();
+	}
+
+	/**
+	 * Duplicates this question and its question options
+	 *
+	 * @return \EE_Question
+	 */
+	public function duplicate($options = array())
+	{
+		$new_question = clone $this;
+		$new_question->set('QST_ID', null);
+		$new_question->set_display_text(sprintf(__('%s **Duplicate**', 'event_espresso'), $this->display_text()));
+		$new_question->set_admin_label(sprintf(__('%s **Duplicate**', 'event_espresso'), $this->admin_label()));
+		$new_question->set_system_ID(null);
+		$new_question->set_wp_user(get_current_user_id());
+		// if we're duplicating a trashed question, assume we don't want the new one to be trashed
+		$new_question->set_deleted(false);
+		$success = $new_question->save();
+		if ($success) {
+			// we don't totally want to duplicate the question options, because we want them to be for the NEW question
+			foreach ($this->options() as $question_option) {
+				$question_option->duplicate(array('QST_ID' => $new_question->ID()));
+			}
+			return $new_question;
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Returns the question's maximum allowed response size
+	 *
+	 * @return int|float
+	 */
+	public function max()
+	{
+		return $this->get('QST_max');
+	}
+
+	/**
+	 * Sets the question's maximum allowed response size
+	 *
+	 * @param int|float $new_max
+	 * @return void
+	 */
+	public function set_max($new_max)
+	{
+		$this->set('QST_max', $new_max);
+	}
+
+
+	/**
+	 * Creates a form input from this question which can be used in HTML forms
+	 *
+	 * @param EE_Registration $registration
+	 * @param EE_Answer       $answer
+	 * @param array           $input_constructor_args
+	 * @return EE_Form_Input_Base
+	 */
+	public function generate_form_input($registration = null, $answer = null, $input_constructor_args = array())
+	{
+		$identifier = $this->is_system_question() ? $this->system_ID() : $this->ID();
+
+		$input_constructor_args = array_merge(
+			array(
+				'required'                          => $this->required() ? true : false,
+				'html_label_text'                   => $this->display_text(),
+				'required_validation_error_message' => $this->required_text(),
+			),
+			$input_constructor_args
+		);
+		if (! $answer instanceof EE_Answer && $registration instanceof EE_Registration) {
+			$answer = EEM_Answer::instance()->get_registration_question_answer_object($registration, $this->ID());
+		}
+		// has this question been answered ?
+		if ($answer instanceof EE_Answer
+			&& $answer->value() !== ''
+		) {
+			// answer gets htmlspecialchars called on it, undo that please
+			// because the form input's display strategy may call esc_attr too
+			// which also does html special characters
+			$values_with_html_special_chars = $answer->value();
+			if (is_array($values_with_html_special_chars)) {
+				$default_value = array_map('htmlspecialchars_decode', $values_with_html_special_chars);
+			} else {
+				$default_value = htmlspecialchars_decode($values_with_html_special_chars);
+			}
+			$input_constructor_args['default'] = $default_value;
+		}
+		$max_max_for_question = EEM_Question::instance()->absolute_max_for_system_question($this->system_ID());
+		if (in_array(
+			$this->type(),
+			EEM_Question::instance()->questionTypesWithMaxLength(),
+			true
+		)) {
+			$input_constructor_args['validation_strategies'][] = new EE_Max_Length_Validation_Strategy(
+				null,
+				min($max_max_for_question, $this->max())
+			);
+		}
+		$input_constructor_args = apply_filters(
+			'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__input_constructor_args',
+			$input_constructor_args,
+			$registration,
+			$this,
+			$answer
+		);
+
+		$result = null;
+		switch ($this->type()) {
+			// Text
+			case EEM_Question::QST_type_text:
+				$result = new EE_Text_Input($input_constructor_args);
+				break;
+			// Textarea
+			case EEM_Question::QST_type_textarea:
+				$result = new EE_Text_Area_Input($input_constructor_args);
+				break;
+			// Radio Buttons
+			case EEM_Question::QST_type_radio:
+				$result = new EE_Radio_Button_Input($this->options(), $input_constructor_args);
+				break;
+			// Dropdown
+			case EEM_Question::QST_type_dropdown:
+				$result = new EE_Select_Input($this->options(), $input_constructor_args);
+				break;
+			// State Dropdown
+			case EEM_Question::QST_type_state:
+				$state_options = apply_filters(
+					'FHEE__EE_Question__generate_form_input__state_options',
+					null,
+					$this,
+					$registration,
+					$answer
+				);
+				$result = new EE_State_Select_Input($state_options, $input_constructor_args);
+				break;
+			// Country Dropdown
+			case EEM_Question::QST_type_country:
+				$country_options = apply_filters(
+					'FHEE__EE_Question__generate_form_input__country_options',
+					null,
+					$this,
+					$registration,
+					$answer
+				);
+				$result = new EE_Country_Select_Input($country_options, $input_constructor_args);
+				break;
+			// Checkboxes
+			case EEM_Question::QST_type_checkbox:
+				$result = new EE_Checkbox_Multi_Input($this->options(), $input_constructor_args);
+				break;
+			// Date
+			case EEM_Question::QST_type_date:
+				$result = new EE_Datepicker_Input($input_constructor_args);
+				break;
+			case EEM_Question::QST_type_html_textarea:
+				$input_constructor_args['validation_strategies'][] = new EE_Simple_HTML_Validation_Strategy();
+				$result = new EE_Text_Area_Input($input_constructor_args);
+				$result->remove_validation_strategy('EE_Plaintext_Validation_Strategy');
+				break;
+			case EEM_Question::QST_type_email:
+				$result = new EE_Email_Input($input_constructor_args);
+				break;
+			case EEM_Question::QST_type_us_phone:
+				$result = new EE_Phone_Input($input_constructor_args);
+				break;
+			case EEM_Question::QST_type_int:
+				$result = new EE_Integer_Input($input_constructor_args);
+				break;
+			case EEM_Question::QST_type_decimal:
+				$result = new EE_Float_Input($input_constructor_args);
+				break;
+			case EEM_Question::QST_type_url:
+				$input_constructor_args['validation_strategies'][] = LoaderFactory::getLoader()->getNew('EE_URL_Validation_Strategy');
+				$result = new EE_Text_Input($input_constructor_args);
+				break;
+			case EEM_Question::QST_type_year:
+				$result = new EE_Year_Input(
+					$input_constructor_args,
+					apply_filters(
+						'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__year_question__four_digit',
+						true,
+						$this
+					),
+					apply_filters(
+						'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__year_question__early_range',
+						100,
+						$this
+					),
+					apply_filters(
+						'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__year_question__end_range',
+						100,
+						$this
+					)
+				);
+				break;
+			case EEM_Question::QST_type_multi_select:
+				$result = new EE_Select_Multiple_Input($this->options(), $input_constructor_args);
+				break;
+			// fallback
+			default:
+				$default_input = apply_filters(
+					'FHEE__EE_SPCO_Reg_Step_Attendee_Information___generate_question_input__default',
+					null,
+					$this->type(),
+					$this,
+					$input_constructor_args
+				);
+				if (! $default_input) {
+					$default_input = new EE_Text_Input($input_constructor_args);
+				}
+				$result = $default_input;
+		}
+		return apply_filters('FHEE__EE_Question__generate_form_input__return', $result, $registration, $this, $answer);
+	}
+
+
+	/**
+	 * Returns whether or not this question type should have question option entries
+	 *
+	 * @return bool
+	 */
+	public function should_have_question_options()
+	{
+		return in_array(
+			$this->type(),
+			$this->_model->question_types_with_options(),
+			true
+		);
+	}
 }

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

Indentation +176 added lines, -176 removed lines

@@ -17,189 +17,189 @@
 class EE_Select_Ajax_Model_Rest_Input extends EE_Form_Input_With_Options_Base
 {
 
-    /**
-     * @var string $_model_name
-     */
-    protected $_model_name;
+	/**
+	 * @var string $_model_name
+	 */
+	protected $_model_name;
 
-    /**
-     * @var string $_display_field_name
-     */
-    protected $_display_field_name;
+	/**
+	 * @var string $_display_field_name
+	 */
+	protected $_display_field_name;
 
-    /**
-     * @var string $_value_field_name
-     */
-    protected $_value_field_name;
+	/**
+	 * @var string $_value_field_name
+	 */
+	protected $_value_field_name;
 
-    /**
-     * @var array $_extra_select_columns
-     */
-    protected $_extra_select_columns = array();
+	/**
+	 * @var array $_extra_select_columns
+	 */
+	protected $_extra_select_columns = array();
 
 
-    /**
-     * @param array $input_settings     {
-     * @type string $model_name         the name of model to be used for searching, both via the REST API and server-side model queries
-     * @type array  $query_params       default query parameters which will apply to both REST API queries and server-side queries. This should be
-     *                                  in the exact format that will be used for server-side model usage (eg use index 0 for where conditions, not
-     *                                  the string "where")
-     * @type string $value_field_name   the name of the model field on this model to
-     *                                  be used for the HTML select's option's values
-     * @type string $display_field_name the name of the model field on this model
-     *                                  to be used for the HTML select's option's display text
-     * @type array  $select2_args       arguments to be passed directly into the select2's JS constructor
-     *                                  }
-     *                                  And the arguments accepted by EE_Form_Input_With_Options_Base
-     * }
-     * @throws EE_Error
-     * @throws InvalidArgumentException
-     * @throws InvalidDataTypeException
-     * @throws InvalidInterfaceException
-     */
-    public function __construct($input_settings = array())
-    {
-        // needed input settings:
-        // select2_args
-        $this->_model_name = EEH_Array::is_set(
-            $input_settings,
-            'model_name',
-            null
-        );
-        $model = $this->_get_model();
-        $query_params = EEH_Array::is_set(
-            $input_settings,
-            'query_params',
-            array()
-        );
-        // make sure limit and caps are always set
-        $query_params = array_merge(
-            array( 'limit' => 10, 'caps' => EEM_Base::caps_read_admin ),
-            $query_params
-        );
-        $this->_value_field_name = EEH_Array::is_set(
-            $input_settings,
-            'value_field_name',
-            $model->primary_key_name()
-        );
-        $this->_display_field_name = EEH_Array::is_set(
-            $input_settings,
-            'display_field_name',
-            $model->get_a_field_of_type('EE_Text_Field_Base')->get_name()
-        );
-        $this->_extra_select_columns = EEH_Array::is_set(
-            $input_settings,
-            'extra_select_columns',
-            array()
-        );
-        $this->_add_validation_strategy(
-            new EE_Model_Matching_Query_Validation_Strategy(
-                '',
-                $this->_model_name,
-                $query_params,
-                $this->_value_field_name
-            )
-        );
-        // get resource endpoint
-        $rest_controller = LoaderFactory::getLoader()->getNew(
-            'EventEspresso\core\libraries\rest_api\controllers\model\Read'
-        );
-        $rest_controller->setRequestedVersion(EED_Core_Rest_Api::latest_rest_api_version());
-        $default_select2_args = array(
-            'ajax' => array(
-                'url' => $rest_controller->getVersionedLinkTo(
-                    EEH_Inflector::pluralize_and_lower($this->_model_name)
-                ),
-                'dataType' => 'json',
-                'delay' => '250',
-                'data_interface' => 'EE_Select2_REST_API_Interface',
-                'data_interface_args' => array(
-                    'default_query_params' => (object) ModelDataTranslator::prepareQueryParamsForRestApi(
-                        $query_params,
-                        $model
-                    ),
-                    'display_field' => $this->_display_field_name,
-                    'value_field' => $this->_value_field_name,
-                    'nonce' => wp_create_nonce('wp_rest'),
-                    'locale' => str_replace('_', '-', strtolower(get_locale()))
-                ),
-            ),
-            'cache' => true,
-            'width' => '100'
-        );
-        $select2_args = array_replace_recursive(
-            $default_select2_args,
-            (array) EEH_Array::is_set($input_settings, 'select2_args', array())
-        );
-        $this->set_display_strategy(new EE_Select2_Display_Strategy($select2_args));
-        parent::__construct(array(), $input_settings);
-    }
+	/**
+	 * @param array $input_settings     {
+	 * @type string $model_name         the name of model to be used for searching, both via the REST API and server-side model queries
+	 * @type array  $query_params       default query parameters which will apply to both REST API queries and server-side queries. This should be
+	 *                                  in the exact format that will be used for server-side model usage (eg use index 0 for where conditions, not
+	 *                                  the string "where")
+	 * @type string $value_field_name   the name of the model field on this model to
+	 *                                  be used for the HTML select's option's values
+	 * @type string $display_field_name the name of the model field on this model
+	 *                                  to be used for the HTML select's option's display text
+	 * @type array  $select2_args       arguments to be passed directly into the select2's JS constructor
+	 *                                  }
+	 *                                  And the arguments accepted by EE_Form_Input_With_Options_Base
+	 * }
+	 * @throws EE_Error
+	 * @throws InvalidArgumentException
+	 * @throws InvalidDataTypeException
+	 * @throws InvalidInterfaceException
+	 */
+	public function __construct($input_settings = array())
+	{
+		// needed input settings:
+		// select2_args
+		$this->_model_name = EEH_Array::is_set(
+			$input_settings,
+			'model_name',
+			null
+		);
+		$model = $this->_get_model();
+		$query_params = EEH_Array::is_set(
+			$input_settings,
+			'query_params',
+			array()
+		);
+		// make sure limit and caps are always set
+		$query_params = array_merge(
+			array( 'limit' => 10, 'caps' => EEM_Base::caps_read_admin ),
+			$query_params
+		);
+		$this->_value_field_name = EEH_Array::is_set(
+			$input_settings,
+			'value_field_name',
+			$model->primary_key_name()
+		);
+		$this->_display_field_name = EEH_Array::is_set(
+			$input_settings,
+			'display_field_name',
+			$model->get_a_field_of_type('EE_Text_Field_Base')->get_name()
+		);
+		$this->_extra_select_columns = EEH_Array::is_set(
+			$input_settings,
+			'extra_select_columns',
+			array()
+		);
+		$this->_add_validation_strategy(
+			new EE_Model_Matching_Query_Validation_Strategy(
+				'',
+				$this->_model_name,
+				$query_params,
+				$this->_value_field_name
+			)
+		);
+		// get resource endpoint
+		$rest_controller = LoaderFactory::getLoader()->getNew(
+			'EventEspresso\core\libraries\rest_api\controllers\model\Read'
+		);
+		$rest_controller->setRequestedVersion(EED_Core_Rest_Api::latest_rest_api_version());
+		$default_select2_args = array(
+			'ajax' => array(
+				'url' => $rest_controller->getVersionedLinkTo(
+					EEH_Inflector::pluralize_and_lower($this->_model_name)
+				),
+				'dataType' => 'json',
+				'delay' => '250',
+				'data_interface' => 'EE_Select2_REST_API_Interface',
+				'data_interface_args' => array(
+					'default_query_params' => (object) ModelDataTranslator::prepareQueryParamsForRestApi(
+						$query_params,
+						$model
+					),
+					'display_field' => $this->_display_field_name,
+					'value_field' => $this->_value_field_name,
+					'nonce' => wp_create_nonce('wp_rest'),
+					'locale' => str_replace('_', '-', strtolower(get_locale()))
+				),
+			),
+			'cache' => true,
+			'width' => '100'
+		);
+		$select2_args = array_replace_recursive(
+			$default_select2_args,
+			(array) EEH_Array::is_set($input_settings, 'select2_args', array())
+		);
+		$this->set_display_strategy(new EE_Select2_Display_Strategy($select2_args));
+		parent::__construct(array(), $input_settings);
+	}
 
 
 
-    /**
-     * Before setting the raw value (usually because we're setting the default,
-     * or we've received a form submission and this might be re-displayed to the user),
-     * sets the options so that the current selections appear on initial display.
-     *
-     * Note: because this input uses EE_Model_Matching_Query_Validation_Strategy
-     * for validation, this input's options only affect DISPLAY and NOT validation,
-     * which is why its ok to just assume the provided $value to be in the list of acceptable values
-     *
-     * @param mixed $value
-     * @return void
-     * @throws \EE_Error
-     */
-    public function _set_raw_value($value)
-    {
-        $values_for_options = (array) $value;
-        $value_field = $this->_get_model()->field_settings_for($this->_value_field_name);
-        $display_field = $this->_get_model()->field_settings_for($this->_display_field_name);
-        $this->_extra_select_columns[] = $value_field->get_qualified_column() . ' AS ' . $this->_value_field_name;
-        $this->_extra_select_columns[] = $display_field->get_qualified_column() . ' AS ' . $this->_display_field_name;
-        $display_values = $this->_get_model()->get_all_wpdb_results(
-            array(
-                array(
-                    $this->_value_field_name => array( 'IN', $values_for_options )
-                )
-            ),
-            ARRAY_A,
-            implode(',', $this->_extra_select_columns)
-        );
-        $select_options = array();
-        if (is_array($select_options)) {
-            foreach ($display_values as $db_rows) {
-                $db_rows = (array) $db_rows;
-                $select_options[ $db_rows[ $this->_value_field_name ] ] = apply_filters(
-                    'FHEE__EE_Select_Ajax_Model_Rest_Input___set_raw_value__select_option_value',
-                    $db_rows[ $this->_display_field_name ],
-                    $db_rows
-                );
-            }
-        }
-        $this->set_select_options($select_options);
-        parent::_set_raw_value($value);
-    }
+	/**
+	 * Before setting the raw value (usually because we're setting the default,
+	 * or we've received a form submission and this might be re-displayed to the user),
+	 * sets the options so that the current selections appear on initial display.
+	 *
+	 * Note: because this input uses EE_Model_Matching_Query_Validation_Strategy
+	 * for validation, this input's options only affect DISPLAY and NOT validation,
+	 * which is why its ok to just assume the provided $value to be in the list of acceptable values
+	 *
+	 * @param mixed $value
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	public function _set_raw_value($value)
+	{
+		$values_for_options = (array) $value;
+		$value_field = $this->_get_model()->field_settings_for($this->_value_field_name);
+		$display_field = $this->_get_model()->field_settings_for($this->_display_field_name);
+		$this->_extra_select_columns[] = $value_field->get_qualified_column() . ' AS ' . $this->_value_field_name;
+		$this->_extra_select_columns[] = $display_field->get_qualified_column() . ' AS ' . $this->_display_field_name;
+		$display_values = $this->_get_model()->get_all_wpdb_results(
+			array(
+				array(
+					$this->_value_field_name => array( 'IN', $values_for_options )
+				)
+			),
+			ARRAY_A,
+			implode(',', $this->_extra_select_columns)
+		);
+		$select_options = array();
+		if (is_array($select_options)) {
+			foreach ($display_values as $db_rows) {
+				$db_rows = (array) $db_rows;
+				$select_options[ $db_rows[ $this->_value_field_name ] ] = apply_filters(
+					'FHEE__EE_Select_Ajax_Model_Rest_Input___set_raw_value__select_option_value',
+					$db_rows[ $this->_display_field_name ],
+					$db_rows
+				);
+			}
+		}
+		$this->set_select_options($select_options);
+		parent::_set_raw_value($value);
+	}
 
-    /**
-     * Returns the model, or throws an exception if the model name provided in constructor doesn't exist
-     * @return EEM_Base
-     * @throws EE_Error
-     */
-    protected function _get_model()
-    {
-        if (! EE_Registry::instance()->is_model_name($this->_model_name)) {
-            throw new EE_Error(
-                sprintf(
-                    __(
-                        '%1$s is not a proper model name. Please provide a model name in the "model_name" form input argument',
-                        'event_espresso'
-                    ),
-                    $this->_model_name
-                )
-            );
-        } else {
-            return EE_Registry::instance()->load_model($this->_model_name);
-        }
-    }
+	/**
+	 * Returns the model, or throws an exception if the model name provided in constructor doesn't exist
+	 * @return EEM_Base
+	 * @throws EE_Error
+	 */
+	protected function _get_model()
+	{
+		if (! EE_Registry::instance()->is_model_name($this->_model_name)) {
+			throw new EE_Error(
+				sprintf(
+					__(
+						'%1$s is not a proper model name. Please provide a model name in the "model_name" form input argument',
+						'event_espresso'
+					),
+					$this->_model_name
+				)
+			);
+		} else {
+			return EE_Registry::instance()->load_model($this->_model_name);
+		}
+	}
 }

espresso.php

Indentation +80 added lines, -80 removed lines

@@ -38,103 +38,103 @@
  * @since           4.0
  */
 if (function_exists('espresso_version')) {
-    if (! function_exists('espresso_duplicate_plugin_error')) {
-        /**
-         *    espresso_duplicate_plugin_error
-         *    displays if more than one version of EE is activated at the same time
-         */
-        function espresso_duplicate_plugin_error()
-        {
-            ?>
+	if (! function_exists('espresso_duplicate_plugin_error')) {
+		/**
+		 *    espresso_duplicate_plugin_error
+		 *    displays if more than one version of EE is activated at the same time
+		 */
+		function espresso_duplicate_plugin_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    echo esc_html__(
-                        'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
-                        'event_espresso'
-                    ); ?>
+					echo esc_html__(
+						'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
+						'event_espresso'
+					); ?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
-    }
-    add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
+	}
+	add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
 } else {
-    define('EE_MIN_PHP_VER_REQUIRED', '5.4.0');
-    if (! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
-        /**
-         * espresso_minimum_php_version_error
-         *
-         * @return void
-         */
-        function espresso_minimum_php_version_error()
-        {
-            ?>
+	define('EE_MIN_PHP_VER_REQUIRED', '5.4.0');
+	if (! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
+		/**
+		 * espresso_minimum_php_version_error
+		 *
+		 * @return void
+		 */
+		function espresso_minimum_php_version_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    printf(
-                        esc_html__(
-                            'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$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$s.',
-                            'event_espresso'
-                        ),
-                        EE_MIN_PHP_VER_REQUIRED,
-                        PHP_VERSION,
-                        '<br/>',
-                        '<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
-                    );
-                    ?>
+					printf(
+						esc_html__(
+							'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. 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_REQUIRED,
+						PHP_VERSION,
+						'<br/>',
+						'<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
+					);
+					?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
 
-        add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
-    } else {
-        define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
-        /**
-         * espresso_version
-         * Returns the plugin version
-         *
-         * @return string
-         */
-        function espresso_version()
-        {
-            return apply_filters('FHEE__espresso__espresso_version', '4.9.68.rc.012');
-        }
+		add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
+	} else {
+		define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
+		/**
+		 * espresso_version
+		 * Returns the plugin version
+		 *
+		 * @return string
+		 */
+		function espresso_version()
+		{
+			return apply_filters('FHEE__espresso__espresso_version', '4.9.68.rc.012');
+		}
 
-        /**
-         * espresso_plugin_activation
-         * adds a wp-option to indicate that EE has been activated via the WP admin plugins page
-         */
-        function espresso_plugin_activation()
-        {
-            update_option('ee_espresso_activation', true);
-        }
+		/**
+		 * espresso_plugin_activation
+		 * adds a wp-option to indicate that EE has been activated via the WP admin plugins page
+		 */
+		function espresso_plugin_activation()
+		{
+			update_option('ee_espresso_activation', true);
+		}
 
-        register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
+		register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
 
-        require_once __DIR__ . '/core/bootstrap_espresso.php';
-        bootstrap_espresso();
-    }
+		require_once __DIR__ . '/core/bootstrap_espresso.php';
+		bootstrap_espresso();
+	}
 }
 if (! function_exists('espresso_deactivate_plugin')) {
-    /**
-     *    deactivate_plugin
-     * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
-     *
-     * @access public
-     * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
-     * @return    void
-     */
-    function espresso_deactivate_plugin($plugin_basename = '')
-    {
-        if (! function_exists('deactivate_plugins')) {
-            require_once ABSPATH . 'wp-admin/includes/plugin.php';
-        }
-        unset($_GET['activate'], $_REQUEST['activate']);
-        deactivate_plugins($plugin_basename);
-    }
+	/**
+	 *    deactivate_plugin
+	 * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
+	 *
+	 * @access public
+	 * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
+	 * @return    void
+	 */
+	function espresso_deactivate_plugin($plugin_basename = '')
+	{
+		if (! function_exists('deactivate_plugins')) {
+			require_once ABSPATH . 'wp-admin/includes/plugin.php';
+		}
+		unset($_GET['activate'], $_REQUEST['activate']);
+		deactivate_plugins($plugin_basename);
+	}
 }

core/EE_Dependency_Map.core.php

Indentation +1044 added lines, -1044 removed lines

@@ -20,1048 +20,1048 @@
 class EE_Dependency_Map
 {
 
-    /**
-     * This means that the requested class dependency is not present in the dependency map
-     */
-    const not_registered = 0;
-
-    /**
-     * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
-     */
-    const load_new_object = 1;
-
-    /**
-     * This instructs class loaders to return a previously instantiated and cached object for the requested class.
-     * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
-     */
-    const load_from_cache = 2;
-
-    /**
-     * When registering a dependency,
-     * this indicates to keep any existing dependencies that already exist,
-     * and simply discard any new dependencies declared in the incoming data
-     */
-    const KEEP_EXISTING_DEPENDENCIES = 0;
-
-    /**
-     * When registering a dependency,
-     * this indicates to overwrite any existing dependencies that already exist using the incoming data
-     */
-    const OVERWRITE_DEPENDENCIES = 1;
-
-
-    /**
-     * @type EE_Dependency_Map $_instance
-     */
-    protected static $_instance;
-
-    /**
-     * @var ClassInterfaceCache $class_cache
-     */
-    private $class_cache;
-
-    /**
-     * @type RequestInterface $request
-     */
-    protected $request;
-
-    /**
-     * @type LegacyRequestInterface $legacy_request
-     */
-    protected $legacy_request;
-
-    /**
-     * @type ResponseInterface $response
-     */
-    protected $response;
-
-    /**
-     * @type LoaderInterface $loader
-     */
-    protected $loader;
-
-    /**
-     * @type array $_dependency_map
-     */
-    protected $_dependency_map = array();
-
-    /**
-     * @type array $_class_loaders
-     */
-    protected $_class_loaders = array();
-
-
-    /**
-     * EE_Dependency_Map constructor.
-     *
-     * @param ClassInterfaceCache $class_cache
-     */
-    protected function __construct(ClassInterfaceCache $class_cache)
-    {
-        $this->class_cache = $class_cache;
-        do_action('EE_Dependency_Map____construct', $this);
-    }
-
-
-    /**
-     * @return void
-     */
-    public function initialize()
-    {
-        $this->_register_core_dependencies();
-        $this->_register_core_class_loaders();
-        $this->_register_core_aliases();
-    }
-
-
-    /**
-     * @singleton method used to instantiate class object
-     * @param ClassInterfaceCache|null $class_cache
-     * @return EE_Dependency_Map
-     */
-    public static function instance(ClassInterfaceCache $class_cache = null)
-    {
-        // check if class object is instantiated, and instantiated properly
-        if (! self::$_instance instanceof EE_Dependency_Map
-            && $class_cache instanceof ClassInterfaceCache
-        ) {
-            self::$_instance = new EE_Dependency_Map($class_cache);
-        }
-        return self::$_instance;
-    }
-
-
-    /**
-     * @param RequestInterface $request
-     */
-    public function setRequest(RequestInterface $request)
-    {
-        $this->request = $request;
-    }
-
-
-    /**
-     * @param LegacyRequestInterface $legacy_request
-     */
-    public function setLegacyRequest(LegacyRequestInterface $legacy_request)
-    {
-        $this->legacy_request = $legacy_request;
-    }
-
-
-    /**
-     * @param ResponseInterface $response
-     */
-    public function setResponse(ResponseInterface $response)
-    {
-        $this->response = $response;
-    }
-
-
-    /**
-     * @param LoaderInterface $loader
-     */
-    public function setLoader(LoaderInterface $loader)
-    {
-        $this->loader = $loader;
-    }
-
-
-    /**
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public static function register_dependencies(
-        $class,
-        array $dependencies,
-        $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ) {
-        return self::$_instance->registerDependencies($class, $dependencies, $overwrite);
-    }
-
-
-    /**
-     * Assigns an array of class names and corresponding load sources (new or cached)
-     * to the class specified by the first parameter.
-     * IMPORTANT !!!
-     * The order of elements in the incoming $dependencies array MUST match
-     * the order of the constructor parameters for the class in question.
-     * This is especially important when overriding any existing dependencies that are registered.
-     * the third parameter controls whether any duplicate dependencies are overwritten or not.
-     *
-     * @param string $class
-     * @param array  $dependencies
-     * @param int    $overwrite
-     * @return bool
-     */
-    public function registerDependencies(
-        $class,
-        array $dependencies,
-        $overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
-    ) {
-        $class = trim($class, '\\');
-        $registered = false;
-        if (empty(self::$_instance->_dependency_map[ $class ])) {
-            self::$_instance->_dependency_map[ $class ] = array();
-        }
-        // we need to make sure that any aliases used when registering a dependency
-        // get resolved to the correct class name
-        foreach ($dependencies as $dependency => $load_source) {
-            $alias = self::$_instance->getFqnForAlias($dependency);
-            if ($overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
-                || ! isset(self::$_instance->_dependency_map[ $class ][ $alias ])
-            ) {
-                unset($dependencies[ $dependency ]);
-                $dependencies[ $alias ] = $load_source;
-                $registered = true;
-            }
-        }
-        // now add our two lists of dependencies together.
-        // using Union (+=) favours the arrays in precedence from left to right,
-        // so $dependencies is NOT overwritten because it is listed first
-        // ie: with A = B + C, entries in B take precedence over duplicate entries in C
-        // Union is way faster than array_merge() but should be used with caution...
-        // especially with numerically indexed arrays
-        $dependencies += self::$_instance->_dependency_map[ $class ];
-        // now we need to ensure that the resulting dependencies
-        // array only has the entries that are required for the class
-        // so first count how many dependencies were originally registered for the class
-        $dependency_count = count(self::$_instance->_dependency_map[ $class ]);
-        // if that count is non-zero (meaning dependencies were already registered)
-        self::$_instance->_dependency_map[ $class ] = $dependency_count
-            // then truncate the  final array to match that count
-            ? array_slice($dependencies, 0, $dependency_count)
-            // otherwise just take the incoming array because nothing previously existed
-            : $dependencies;
-        return $registered;
-    }
-
-
-    /**
-     * @param string $class_name
-     * @param string $loader
-     * @return bool
-     * @throws DomainException
-     */
-    public static function register_class_loader($class_name, $loader = 'load_core')
-    {
-        if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
-            throw new DomainException(
-                esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
-            );
-        }
-        // check that loader is callable or method starts with "load_" and exists in EE_Registry
-        if (! is_callable($loader)
-            && (
-                strpos($loader, 'load_') !== 0
-                || ! method_exists('EE_Registry', $loader)
-            )
-        ) {
-            throw new DomainException(
-                sprintf(
-                    esc_html__(
-                        '"%1$s" is not a valid loader method on EE_Registry.',
-                        'event_espresso'
-                    ),
-                    $loader
-                )
-            );
-        }
-        $class_name = self::$_instance->getFqnForAlias($class_name);
-        if (! isset(self::$_instance->_class_loaders[ $class_name ])) {
-            self::$_instance->_class_loaders[ $class_name ] = $loader;
-            return true;
-        }
-        return false;
-    }
-
-
-    /**
-     * @return array
-     */
-    public function dependency_map()
-    {
-        return $this->_dependency_map;
-    }
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name
-     *
-     * @param string $class_name
-     * @return boolean
-     */
-    public function has($class_name = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        return isset($this->_dependency_map[ $class_name ]) ? true : false;
-    }
-
-
-    /**
-     * returns TRUE if dependency map contains a listing for the provided class name AND dependency
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return bool
-     */
-    public function has_dependency_for_class($class_name = '', $dependency = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->getFqnForAlias($dependency, $class_name);
-        return isset($this->_dependency_map[ $class_name ][ $dependency ])
-            ? true
-            : false;
-    }
-
-
-    /**
-     * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
-     *
-     * @param string $class_name
-     * @param string $dependency
-     * @return int
-     */
-    public function loading_strategy_for_class_dependency($class_name = '', $dependency = '')
-    {
-        // all legacy models have the same dependencies
-        if (strpos($class_name, 'EEM_') === 0) {
-            $class_name = 'LEGACY_MODELS';
-        }
-        $dependency = $this->getFqnForAlias($dependency);
-        return $this->has_dependency_for_class($class_name, $dependency)
-            ? $this->_dependency_map[ $class_name ][ $dependency ]
-            : EE_Dependency_Map::not_registered;
-    }
-
-
-    /**
-     * @param string $class_name
-     * @return string | Closure
-     */
-    public function class_loader($class_name)
-    {
-        // all legacy models use load_model()
-        if (strpos($class_name, 'EEM_') === 0) {
-            return 'load_model';
-        }
-        // EE_CPT_*_Strategy classes like EE_CPT_Event_Strategy, EE_CPT_Venue_Strategy, etc
-        // perform strpos() first to avoid loading regex every time we load a class
-        if (strpos($class_name, 'EE_CPT_') === 0
-            && preg_match('/^EE_CPT_([a-zA-Z]+)_Strategy$/', $class_name)
-        ) {
-            return 'load_core';
-        }
-        $class_name = $this->getFqnForAlias($class_name);
-        return isset($this->_class_loaders[ $class_name ]) ? $this->_class_loaders[ $class_name ] : '';
-    }
-
-
-    /**
-     * @return array
-     */
-    public function class_loaders()
-    {
-        return $this->_class_loaders;
-    }
-
-
-    /**
-     * adds an alias for a classname
-     *
-     * @param string $fqcn      the class name that should be used (concrete class to replace interface)
-     * @param string $alias     the class name that would be type hinted for (abstract parent or interface)
-     * @param string $for_class the class that has the dependency (is type hinting for the interface)
-     */
-    public function add_alias($fqcn, $alias, $for_class = '')
-    {
-        $this->class_cache->addAlias($fqcn, $alias, $for_class);
-    }
-
-
-    /**
-     * Returns TRUE if the provided fully qualified name IS an alias
-     * WHY?
-     * Because if a class is type hinting for a concretion,
-     * then why would we need to find another class to supply it?
-     * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
-     * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
-     * Don't go looking for some substitute.
-     * Whereas if a class is type hinting for an interface...
-     * then we need to find an actual class to use.
-     * So the interface IS the alias for some other FQN,
-     * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
-     * represents some other class.
-     *
-     * @param string $fqn
-     * @param string $for_class
-     * @return bool
-     */
-    public function isAlias($fqn = '', $for_class = '')
-    {
-        return $this->class_cache->isAlias($fqn, $for_class);
-    }
-
-
-    /**
-     * Returns a FQN for provided alias if one exists, otherwise returns the original $alias
-     * functions recursively, so that multiple aliases can be used to drill down to a FQN
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @param string $alias
-     * @param string $for_class
-     * @return string
-     */
-    public function getFqnForAlias($alias = '', $for_class = '')
-    {
-        return (string) $this->class_cache->getFqnForAlias($alias, $for_class);
-    }
-
-
-    /**
-     * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
-     * if one exists, or whether a new object should be generated every time the requested class is loaded.
-     * This is done by using the following class constants:
-     *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
-     *        EE_Dependency_Map::load_new_object - generates a new object every time
-     */
-    protected function _register_core_dependencies()
-    {
-        $this->_dependency_map = array(
-            'EE_Request_Handler'                                                                                          => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_System'                                                                                                   => array(
-                'EE_Registry'                                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EE_Maintenance_Mode'                         => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Session'                                                                                                  => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
-                'EE_Encryption'                                            => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Cart'                                                                                                     => array(
-                'EE_Session' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Front_Controller'                                                                                         => array(
-                'EE_Registry'              => EE_Dependency_Map::load_from_cache,
-                'EE_Request_Handler'       => EE_Dependency_Map::load_from_cache,
-                'EE_Module_Request_Router' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messenger_Collection_Loader'                                                                              => array(
-                'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Message_Type_Collection_Loader'                                                                           => array(
-                'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Message_Resource_Manager'                                                                                 => array(
-                'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
-                'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
-                'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Message_Factory'                                                                                          => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_messages'                                                                                                 => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Generator'                                                                                       => array(
-                'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
-                'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
-                'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
-                'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Processor'                                                                                       => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Messages_Queue'                                                                                           => array(
-                'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
-            ),
-            'EE_Messages_Template_Defaults'                                                                               => array(
-                'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
-                'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Message_To_Generate_From_Request'                                                                         => array(
-                'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
-                'EE_Request_Handler'          => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandBus'                                                             => array(
-                'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\services\commands\CommandHandler'                                                              => array(
-                'EE_Registry'         => EE_Dependency_Map::load_from_cache,
-                'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandHandlerManager'                                                  => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CompositeCommandHandler'                                                => array(
-                'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\CommandFactory'                                                         => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\middleware\CapChecker'                                                  => array(
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                         => array(
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                     => array(
-                'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CreateRegistrationCommandHandler'                          => array(
-                'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => array(
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => array(
-                'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => array(
-                'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => array(
-                'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => array(
-                'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => array(
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                   => array(
-                'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler'                                  => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\database\TableManager'                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Data_Migration_Class_Base'                                                                                => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_1_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_2_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_3_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_4_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_5_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_6_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_7_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_8_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_DMS_Core_4_9_0'                                                                                           => array(
-                'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\assets\I18nRegistry'                                                             => array(
-                array(),
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\assets\Registry'                                                                 => array(
-                'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\I18nRegistry'    => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                             => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                              => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                        => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                              => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                        => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                               => array(
-                'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\cache\BasicCacheManager'                                                         => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\cache\PostRelatedCacheManager'                                                   => array(
-                'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\validation\email\EmailValidationService'                                  => array(
-                'EE_Registration_Config'                     => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\values\EmailAddress'                                                               => array(
-                null,
-                'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\orm\ModelFieldFactory'                                                           => array(
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'LEGACY_MODELS'                                                                                               => array(
-                null,
-                'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Module_Request_Router'                                                                                    => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Registration_Processor'                                                                                   => array(
-                'EE_Request' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'                                      => array(
-                null,
-                'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                         => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\licensing\LicenseService'                                                        => array(
-                'EventEspresso\core\domain\services\pue\Stats'  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\pue\Config' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_Admin_Transactions_List_Table'                                                                            => array(
-                null,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\pue\Stats'                                                                => array(
-                'EventEspresso\core\domain\services\pue\Config'        => EE_Dependency_Map::load_from_cache,
-                'EE_Maintenance_Mode'                                  => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\services\pue\StatsGatherer' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\pue\Config'                                                               => array(
-                'EE_Network_Config' => EE_Dependency_Map::load_from_cache,
-                'EE_Config'         => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\pue\StatsGatherer'                                                        => array(
-                'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
-                'EEM_Event'          => EE_Dependency_Map::load_from_cache,
-                'EEM_Datetime'       => EE_Dependency_Map::load_from_cache,
-                'EEM_Ticket'         => EE_Dependency_Map::load_from_cache,
-                'EEM_Registration'   => EE_Dependency_Map::load_from_cache,
-                'EEM_Transaction'    => EE_Dependency_Map::load_from_cache,
-                'EE_Config'          => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\ExitModal'                                                          => array(
-                'EventEspresso\core\services\assets\Registry' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\PluginUpsells'                                                      => array(
-                'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\caffeinated\modules\recaptcha_invisible\InvisibleRecaptcha'                                    => array(
-                'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
-                'EE_Session'             => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\caffeinated\modules\recaptcha_invisible\RecaptchaAdminSettings'                                => array(
-                'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\modules\ticket_selector\ProcessTicketSelector'                                                 => array(
-                'EE_Core_Config'                                                          => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                             => EE_Dependency_Map::load_from_cache,
-                'EE_Session'                                                              => EE_Dependency_Map::load_from_cache,
-                'EEM_Ticket'                                                              => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker'                                     => array(
-                'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'                              => array(
-                'EE_Core_Config'                             => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'                                => array(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'                               => array(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EE_CPT_Strategy'                                                                                             => array(
-                'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\loaders\ObjectIdentifier'                                                        => array(
-                'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\assets\CoreAssetManager'                                                  => array(
-                'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
-                'EE_Currency_Config'                                 => EE_Dependency_Map::load_from_cache,
-                'EE_Template_Config'                                 => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\Domain'                   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\Registry'        => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\policy\PrivacyPolicy' => array(
-                'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendee' => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendeeBillingData' => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-                'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportCheckins' => array(
-                'EEM_Checkin' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportRegistration' => array(
-                'EEM_Registration' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\export\ExportTransaction' => array(
-                'EEM_Transaction' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAttendeeData' => array(
-                'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAnswers' => array(
-                'EEM_Answer' => EE_Dependency_Map::load_from_cache,
-                'EEM_Question' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\CPTs\CptQueryModifier' => array(
-                null,
-                null,
-                null,
-                'EE_Request_Handler'                          => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\services\admin\privacy\forms\PrivacySettingsFormHandler' => array(
-                'EE_Registry' => EE_Dependency_Map::load_from_cache,
-                'EE_Config' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\services\editor\BlockRegistrationManager'                                                 => array(
-                'EventEspresso\core\services\assets\BlockAssetManagerCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\entities\editor\BlockCollection'      => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\route_match\RouteMatchSpecificationManager' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\request\Request'                    => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\editor\CoreBlocksAssetManager' => array(
-                'EventEspresso\core\domain\Domain'                   => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\assets\Registry'        => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\domain\entities\editor\blocks\EventAttendees' => array(
-                'EventEspresso\core\domain\entities\editor\CoreBlocksAssetManager' => self::load_from_cache,
-                'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees' => self::load_from_cache,
-            ),
-            'EventEspresso\core\services\route_match\RouteMatchSpecificationDependencyResolver' => array(
-                'EventEspresso\core\services\container\Mirror' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
-                'EE_Dependency_Map' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\route_match\RouteMatchSpecificationFactory' => array(
-                'EventEspresso\core\services\route_match\RouteMatchSpecificationDependencyResolver' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\services\route_match\RouteMatchSpecificationManager' => array(
-                'EventEspresso\core\services\route_match\RouteMatchSpecificationCollection' => EE_Dependency_Map::load_from_cache,
-                'EventEspresso\core\services\route_match\RouteMatchSpecificationFactory' => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\libraries\rest_api\CalculatedModelFields' => array(
-                'EventEspresso\core\libraries\rest_api\calculations\CalculatedModelFieldsFactory' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\libraries\rest_api\calculations\CalculatedModelFieldsFactory' => array(
-                'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
-            ),
-            'EventEspresso\core\libraries\rest_api\controllers\model\Read' => array(
-                'EventEspresso\core\libraries\rest_api\CalculatedModelFields' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\libraries\rest_api\calculations\Datetime' => array(
-                'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
-                'EEM_Registration' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\libraries\rest_api\calculations\Event' => array(
-                'EEM_Event' => EE_Dependency_Map::load_from_cache,
-                'EEM_Registration' => EE_Dependency_Map::load_from_cache
-            ),
-            'EventEspresso\core\libraries\rest_api\calculations\Registration' => array(
-                'EEM_Registration' => EE_Dependency_Map::load_from_cache
-            ),
-            'EE_URL_Validation_Strategy' => array(
-                null,
-                null,
-                'EventEspresso\core\services\validators\URLValidator' => EE_Dependency_Map::load_from_cache
-            ),
-        );
-    }
-
-
-    /**
-     * Registers how core classes are loaded.
-     * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
-     *        'EE_Request_Handler' => 'load_core'
-     *        'EE_Messages_Queue'  => 'load_lib'
-     *        'EEH_Debug_Tools'    => 'load_helper'
-     * or, if greater control is required, by providing a custom closure. For example:
-     *        'Some_Class' => function () {
-     *            return new Some_Class();
-     *        },
-     * This is required for instantiating dependencies
-     * where an interface has been type hinted in a class constructor. For example:
-     *        'Required_Interface' => function () {
-     *            return new A_Class_That_Implements_Required_Interface();
-     *        },
-     */
-    protected function _register_core_class_loaders()
-    {
-        $this->_class_loaders = array(
-            // load_core
-            'EE_Dependency_Map'                            => function () {
-                return $this;
-            },
-            'EE_Capabilities'                              => 'load_core',
-            'EE_Encryption'                                => 'load_core',
-            'EE_Front_Controller'                          => 'load_core',
-            'EE_Module_Request_Router'                     => 'load_core',
-            'EE_Registry'                                  => 'load_core',
-            'EE_Request'                                   => function () {
-                return $this->legacy_request;
-            },
-            'EventEspresso\core\services\request\Request'  => function () {
-                return $this->request;
-            },
-            'EventEspresso\core\services\request\Response' => function () {
-                return $this->response;
-            },
-            'EE_Base'                                      => 'load_core',
-            'EE_Request_Handler'                           => 'load_core',
-            'EE_Session'                                   => 'load_core',
-            'EE_Cron_Tasks'                                => 'load_core',
-            'EE_System'                                    => 'load_core',
-            'EE_Maintenance_Mode'                          => 'load_core',
-            'EE_Register_CPTs'                             => 'load_core',
-            'EE_Admin'                                     => 'load_core',
-            'EE_CPT_Strategy'                              => 'load_core',
-            // load_lib
-            'EE_Message_Resource_Manager'                  => 'load_lib',
-            'EE_Message_Type_Collection'                   => 'load_lib',
-            'EE_Message_Type_Collection_Loader'            => 'load_lib',
-            'EE_Messenger_Collection'                      => 'load_lib',
-            'EE_Messenger_Collection_Loader'               => 'load_lib',
-            'EE_Messages_Processor'                        => 'load_lib',
-            'EE_Message_Repository'                        => 'load_lib',
-            'EE_Messages_Queue'                            => 'load_lib',
-            'EE_Messages_Data_Handler_Collection'          => 'load_lib',
-            'EE_Message_Template_Group_Collection'         => 'load_lib',
-            'EE_Payment_Method_Manager'                    => 'load_lib',
-            'EE_Messages_Generator'                        => function () {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Generator',
-                    array(),
-                    false,
-                    false
-                );
-            },
-            'EE_Messages_Template_Defaults'                => function ($arguments = array()) {
-                return EE_Registry::instance()->load_lib(
-                    'Messages_Template_Defaults',
-                    $arguments,
-                    false,
-                    false
-                );
-            },
-            // load_helper
-            'EEH_Parse_Shortcodes'                         => function () {
-                if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
-                    return new EEH_Parse_Shortcodes();
-                }
-                return null;
-            },
-            'EE_Template_Config'                           => function () {
-                return EE_Config::instance()->template_settings;
-            },
-            'EE_Currency_Config'                           => function () {
-                return EE_Config::instance()->currency;
-            },
-            'EE_Registration_Config'                       => function () {
-                return EE_Config::instance()->registration;
-            },
-            'EE_Core_Config'                               => function () {
-                return EE_Config::instance()->core;
-            },
-            'EventEspresso\core\services\loaders\Loader'   => function () {
-                return LoaderFactory::getLoader();
-            },
-            'EE_Network_Config'                            => function () {
-                return EE_Network_Config::instance();
-            },
-            'EE_Config'                                    => function () {
-                return EE_Config::instance();
-            },
-            'EventEspresso\core\domain\Domain'             => function () {
-                return DomainFactory::getEventEspressoCoreDomain();
-            },
-            'EE_Admin_Config'                              => function () {
-                return EE_Config::instance()->admin;
-            },
-        );
-    }
-
-
-    /**
-     * can be used for supplying alternate names for classes,
-     * or for connecting interface names to instantiable classes
-     */
-    protected function _register_core_aliases()
-    {
-        $aliases = array(
-            'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
-            'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
-            'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
-            'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
-            'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
-            'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
-            'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
-            'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
-            'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
-            'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
-            'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommand',
-            'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommand',
-            'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
-            'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
-            'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommand',
-            'CreateTransactionCommandHandler'                                              => 'EventEspresso\core\services\commands\transaction\CreateTransactionCommandHandler',
-            'CreateAttendeeCommandHandler'                                                 => 'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler',
-            'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
-            'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
-            'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
-            'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
-            'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
-            'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
-            'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
-            'CommandFactoryInterface'                                                      => 'EventEspresso\core\services\commands\CommandFactoryInterface',
-            'EventEspresso\core\services\commands\CommandFactoryInterface'                 => 'EventEspresso\core\services\commands\CommandFactory',
-            'EmailValidatorInterface'                                                      => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
-            'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface'  => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
-            'NoticeConverterInterface'                                                     => 'EventEspresso\core\services\notices\NoticeConverterInterface',
-            'EventEspresso\core\services\notices\NoticeConverterInterface'                 => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
-            'NoticesContainerInterface'                                                    => 'EventEspresso\core\services\notices\NoticesContainerInterface',
-            'EventEspresso\core\services\notices\NoticesContainerInterface'                => 'EventEspresso\core\services\notices\NoticesContainer',
-            'EventEspresso\core\services\request\RequestInterface'                         => 'EventEspresso\core\services\request\Request',
-            'EventEspresso\core\services\request\ResponseInterface'                        => 'EventEspresso\core\services\request\Response',
-            'EventEspresso\core\domain\DomainInterface'                                    => 'EventEspresso\core\domain\Domain',
-        );
-        foreach ($aliases as $alias => $fqn) {
-            if (is_array($fqn)) {
-                foreach ($fqn as $class => $for_class) {
-                    $this->class_cache->addAlias($class, $alias, $for_class);
-                }
-                continue;
-            }
-            $this->class_cache->addAlias($fqn, $alias);
-        }
-        if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
-            $this->class_cache->addAlias(
-                'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices',
-                'EventEspresso\core\services\notices\NoticeConverterInterface'
-            );
-        }
-    }
-
-
-    /**
-     * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
-     * request Primarily used by unit tests.
-     */
-    public function reset()
-    {
-        $this->_register_core_class_loaders();
-        $this->_register_core_dependencies();
-    }
-
-
-    /**
-     * PLZ NOTE: a better name for this method would be is_alias()
-     * because it returns TRUE if the provided fully qualified name IS an alias
-     * WHY?
-     * Because if a class is type hinting for a concretion,
-     * then why would we need to find another class to supply it?
-     * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
-     * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
-     * Don't go looking for some substitute.
-     * Whereas if a class is type hinting for an interface...
-     * then we need to find an actual class to use.
-     * So the interface IS the alias for some other FQN,
-     * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
-     * represents some other class.
-     *
-     * @deprecated 4.9.62.p
-     * @param string $fqn
-     * @param string $for_class
-     * @return bool
-     */
-    public function has_alias($fqn = '', $for_class = '')
-    {
-        return $this->isAlias($fqn, $for_class);
-    }
-
-
-    /**
-     * PLZ NOTE: a better name for this method would be get_fqn_for_alias()
-     * because it returns a FQN for provided alias if one exists, otherwise returns the original $alias
-     * functions recursively, so that multiple aliases can be used to drill down to a FQN
-     *  for example:
-     *      if the following two entries were added to the _aliases array:
-     *          array(
-     *              'interface_alias'           => 'some\namespace\interface'
-     *              'some\namespace\interface'  => 'some\namespace\classname'
-     *          )
-     *      then one could use EE_Registry::instance()->create( 'interface_alias' )
-     *      to load an instance of 'some\namespace\classname'
-     *
-     * @deprecated 4.9.62.p
-     * @param string $alias
-     * @param string $for_class
-     * @return string
-     */
-    public function get_alias($alias = '', $for_class = '')
-    {
-        return $this->getFqnForAlias($alias, $for_class);
-    }
+	/**
+	 * This means that the requested class dependency is not present in the dependency map
+	 */
+	const not_registered = 0;
+
+	/**
+	 * This instructs class loaders to ALWAYS return a newly instantiated object for the requested class.
+	 */
+	const load_new_object = 1;
+
+	/**
+	 * This instructs class loaders to return a previously instantiated and cached object for the requested class.
+	 * IF a previously instantiated object does not exist, a new one will be created and added to the cache.
+	 */
+	const load_from_cache = 2;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to keep any existing dependencies that already exist,
+	 * and simply discard any new dependencies declared in the incoming data
+	 */
+	const KEEP_EXISTING_DEPENDENCIES = 0;
+
+	/**
+	 * When registering a dependency,
+	 * this indicates to overwrite any existing dependencies that already exist using the incoming data
+	 */
+	const OVERWRITE_DEPENDENCIES = 1;
+
+
+	/**
+	 * @type EE_Dependency_Map $_instance
+	 */
+	protected static $_instance;
+
+	/**
+	 * @var ClassInterfaceCache $class_cache
+	 */
+	private $class_cache;
+
+	/**
+	 * @type RequestInterface $request
+	 */
+	protected $request;
+
+	/**
+	 * @type LegacyRequestInterface $legacy_request
+	 */
+	protected $legacy_request;
+
+	/**
+	 * @type ResponseInterface $response
+	 */
+	protected $response;
+
+	/**
+	 * @type LoaderInterface $loader
+	 */
+	protected $loader;
+
+	/**
+	 * @type array $_dependency_map
+	 */
+	protected $_dependency_map = array();
+
+	/**
+	 * @type array $_class_loaders
+	 */
+	protected $_class_loaders = array();
+
+
+	/**
+	 * EE_Dependency_Map constructor.
+	 *
+	 * @param ClassInterfaceCache $class_cache
+	 */
+	protected function __construct(ClassInterfaceCache $class_cache)
+	{
+		$this->class_cache = $class_cache;
+		do_action('EE_Dependency_Map____construct', $this);
+	}
+
+
+	/**
+	 * @return void
+	 */
+	public function initialize()
+	{
+		$this->_register_core_dependencies();
+		$this->_register_core_class_loaders();
+		$this->_register_core_aliases();
+	}
+
+
+	/**
+	 * @singleton method used to instantiate class object
+	 * @param ClassInterfaceCache|null $class_cache
+	 * @return EE_Dependency_Map
+	 */
+	public static function instance(ClassInterfaceCache $class_cache = null)
+	{
+		// check if class object is instantiated, and instantiated properly
+		if (! self::$_instance instanceof EE_Dependency_Map
+			&& $class_cache instanceof ClassInterfaceCache
+		) {
+			self::$_instance = new EE_Dependency_Map($class_cache);
+		}
+		return self::$_instance;
+	}
+
+
+	/**
+	 * @param RequestInterface $request
+	 */
+	public function setRequest(RequestInterface $request)
+	{
+		$this->request = $request;
+	}
+
+
+	/**
+	 * @param LegacyRequestInterface $legacy_request
+	 */
+	public function setLegacyRequest(LegacyRequestInterface $legacy_request)
+	{
+		$this->legacy_request = $legacy_request;
+	}
+
+
+	/**
+	 * @param ResponseInterface $response
+	 */
+	public function setResponse(ResponseInterface $response)
+	{
+		$this->response = $response;
+	}
+
+
+	/**
+	 * @param LoaderInterface $loader
+	 */
+	public function setLoader(LoaderInterface $loader)
+	{
+		$this->loader = $loader;
+	}
+
+
+	/**
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public static function register_dependencies(
+		$class,
+		array $dependencies,
+		$overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	) {
+		return self::$_instance->registerDependencies($class, $dependencies, $overwrite);
+	}
+
+
+	/**
+	 * Assigns an array of class names and corresponding load sources (new or cached)
+	 * to the class specified by the first parameter.
+	 * IMPORTANT !!!
+	 * The order of elements in the incoming $dependencies array MUST match
+	 * the order of the constructor parameters for the class in question.
+	 * This is especially important when overriding any existing dependencies that are registered.
+	 * the third parameter controls whether any duplicate dependencies are overwritten or not.
+	 *
+	 * @param string $class
+	 * @param array  $dependencies
+	 * @param int    $overwrite
+	 * @return bool
+	 */
+	public function registerDependencies(
+		$class,
+		array $dependencies,
+		$overwrite = EE_Dependency_Map::KEEP_EXISTING_DEPENDENCIES
+	) {
+		$class = trim($class, '\\');
+		$registered = false;
+		if (empty(self::$_instance->_dependency_map[ $class ])) {
+			self::$_instance->_dependency_map[ $class ] = array();
+		}
+		// we need to make sure that any aliases used when registering a dependency
+		// get resolved to the correct class name
+		foreach ($dependencies as $dependency => $load_source) {
+			$alias = self::$_instance->getFqnForAlias($dependency);
+			if ($overwrite === EE_Dependency_Map::OVERWRITE_DEPENDENCIES
+				|| ! isset(self::$_instance->_dependency_map[ $class ][ $alias ])
+			) {
+				unset($dependencies[ $dependency ]);
+				$dependencies[ $alias ] = $load_source;
+				$registered = true;
+			}
+		}
+		// now add our two lists of dependencies together.
+		// using Union (+=) favours the arrays in precedence from left to right,
+		// so $dependencies is NOT overwritten because it is listed first
+		// ie: with A = B + C, entries in B take precedence over duplicate entries in C
+		// Union is way faster than array_merge() but should be used with caution...
+		// especially with numerically indexed arrays
+		$dependencies += self::$_instance->_dependency_map[ $class ];
+		// now we need to ensure that the resulting dependencies
+		// array only has the entries that are required for the class
+		// so first count how many dependencies were originally registered for the class
+		$dependency_count = count(self::$_instance->_dependency_map[ $class ]);
+		// if that count is non-zero (meaning dependencies were already registered)
+		self::$_instance->_dependency_map[ $class ] = $dependency_count
+			// then truncate the  final array to match that count
+			? array_slice($dependencies, 0, $dependency_count)
+			// otherwise just take the incoming array because nothing previously existed
+			: $dependencies;
+		return $registered;
+	}
+
+
+	/**
+	 * @param string $class_name
+	 * @param string $loader
+	 * @return bool
+	 * @throws DomainException
+	 */
+	public static function register_class_loader($class_name, $loader = 'load_core')
+	{
+		if (! $loader instanceof Closure && strpos($class_name, '\\') !== false) {
+			throw new DomainException(
+				esc_html__('Don\'t use class loaders for FQCNs.', 'event_espresso')
+			);
+		}
+		// check that loader is callable or method starts with "load_" and exists in EE_Registry
+		if (! is_callable($loader)
+			&& (
+				strpos($loader, 'load_') !== 0
+				|| ! method_exists('EE_Registry', $loader)
+			)
+		) {
+			throw new DomainException(
+				sprintf(
+					esc_html__(
+						'"%1$s" is not a valid loader method on EE_Registry.',
+						'event_espresso'
+					),
+					$loader
+				)
+			);
+		}
+		$class_name = self::$_instance->getFqnForAlias($class_name);
+		if (! isset(self::$_instance->_class_loaders[ $class_name ])) {
+			self::$_instance->_class_loaders[ $class_name ] = $loader;
+			return true;
+		}
+		return false;
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function dependency_map()
+	{
+		return $this->_dependency_map;
+	}
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name
+	 *
+	 * @param string $class_name
+	 * @return boolean
+	 */
+	public function has($class_name = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		return isset($this->_dependency_map[ $class_name ]) ? true : false;
+	}
+
+
+	/**
+	 * returns TRUE if dependency map contains a listing for the provided class name AND dependency
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return bool
+	 */
+	public function has_dependency_for_class($class_name = '', $dependency = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->getFqnForAlias($dependency, $class_name);
+		return isset($this->_dependency_map[ $class_name ][ $dependency ])
+			? true
+			: false;
+	}
+
+
+	/**
+	 * returns loading strategy for whether a previously cached dependency should be loaded or a new instance returned
+	 *
+	 * @param string $class_name
+	 * @param string $dependency
+	 * @return int
+	 */
+	public function loading_strategy_for_class_dependency($class_name = '', $dependency = '')
+	{
+		// all legacy models have the same dependencies
+		if (strpos($class_name, 'EEM_') === 0) {
+			$class_name = 'LEGACY_MODELS';
+		}
+		$dependency = $this->getFqnForAlias($dependency);
+		return $this->has_dependency_for_class($class_name, $dependency)
+			? $this->_dependency_map[ $class_name ][ $dependency ]
+			: EE_Dependency_Map::not_registered;
+	}
+
+
+	/**
+	 * @param string $class_name
+	 * @return string | Closure
+	 */
+	public function class_loader($class_name)
+	{
+		// all legacy models use load_model()
+		if (strpos($class_name, 'EEM_') === 0) {
+			return 'load_model';
+		}
+		// EE_CPT_*_Strategy classes like EE_CPT_Event_Strategy, EE_CPT_Venue_Strategy, etc
+		// perform strpos() first to avoid loading regex every time we load a class
+		if (strpos($class_name, 'EE_CPT_') === 0
+			&& preg_match('/^EE_CPT_([a-zA-Z]+)_Strategy$/', $class_name)
+		) {
+			return 'load_core';
+		}
+		$class_name = $this->getFqnForAlias($class_name);
+		return isset($this->_class_loaders[ $class_name ]) ? $this->_class_loaders[ $class_name ] : '';
+	}
+
+
+	/**
+	 * @return array
+	 */
+	public function class_loaders()
+	{
+		return $this->_class_loaders;
+	}
+
+
+	/**
+	 * adds an alias for a classname
+	 *
+	 * @param string $fqcn      the class name that should be used (concrete class to replace interface)
+	 * @param string $alias     the class name that would be type hinted for (abstract parent or interface)
+	 * @param string $for_class the class that has the dependency (is type hinting for the interface)
+	 */
+	public function add_alias($fqcn, $alias, $for_class = '')
+	{
+		$this->class_cache->addAlias($fqcn, $alias, $for_class);
+	}
+
+
+	/**
+	 * Returns TRUE if the provided fully qualified name IS an alias
+	 * WHY?
+	 * Because if a class is type hinting for a concretion,
+	 * then why would we need to find another class to supply it?
+	 * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
+	 * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
+	 * Don't go looking for some substitute.
+	 * Whereas if a class is type hinting for an interface...
+	 * then we need to find an actual class to use.
+	 * So the interface IS the alias for some other FQN,
+	 * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
+	 * represents some other class.
+	 *
+	 * @param string $fqn
+	 * @param string $for_class
+	 * @return bool
+	 */
+	public function isAlias($fqn = '', $for_class = '')
+	{
+		return $this->class_cache->isAlias($fqn, $for_class);
+	}
+
+
+	/**
+	 * Returns a FQN for provided alias if one exists, otherwise returns the original $alias
+	 * functions recursively, so that multiple aliases can be used to drill down to a FQN
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @param string $alias
+	 * @param string $for_class
+	 * @return string
+	 */
+	public function getFqnForAlias($alias = '', $for_class = '')
+	{
+		return (string) $this->class_cache->getFqnForAlias($alias, $for_class);
+	}
+
+
+	/**
+	 * Registers the core dependencies and whether a previously instantiated object should be loaded from the cache,
+	 * if one exists, or whether a new object should be generated every time the requested class is loaded.
+	 * This is done by using the following class constants:
+	 *        EE_Dependency_Map::load_from_cache - loads previously instantiated object
+	 *        EE_Dependency_Map::load_new_object - generates a new object every time
+	 */
+	protected function _register_core_dependencies()
+	{
+		$this->_dependency_map = array(
+			'EE_Request_Handler'                                                                                          => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_System'                                                                                                   => array(
+				'EE_Registry'                                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EE_Maintenance_Mode'                         => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Session'                                                                                                  => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'              => EE_Dependency_Map::load_from_cache,
+				'EE_Encryption'                                            => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Cart'                                                                                                     => array(
+				'EE_Session' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Front_Controller'                                                                                         => array(
+				'EE_Registry'              => EE_Dependency_Map::load_from_cache,
+				'EE_Request_Handler'       => EE_Dependency_Map::load_from_cache,
+				'EE_Module_Request_Router' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messenger_Collection_Loader'                                                                              => array(
+				'EE_Messenger_Collection' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Message_Type_Collection_Loader'                                                                           => array(
+				'EE_Message_Type_Collection' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Message_Resource_Manager'                                                                                 => array(
+				'EE_Messenger_Collection_Loader'    => EE_Dependency_Map::load_new_object,
+				'EE_Message_Type_Collection_Loader' => EE_Dependency_Map::load_new_object,
+				'EEM_Message_Template_Group'        => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Message_Factory'                                                                                          => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_messages'                                                                                                 => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Generator'                                                                                       => array(
+				'EE_Messages_Queue'                    => EE_Dependency_Map::load_new_object,
+				'EE_Messages_Data_Handler_Collection'  => EE_Dependency_Map::load_new_object,
+				'EE_Message_Template_Group_Collection' => EE_Dependency_Map::load_new_object,
+				'EEH_Parse_Shortcodes'                 => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Processor'                                                                                       => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Messages_Queue'                                                                                           => array(
+				'EE_Message_Repository' => EE_Dependency_Map::load_new_object,
+			),
+			'EE_Messages_Template_Defaults'                                                                               => array(
+				'EEM_Message_Template_Group' => EE_Dependency_Map::load_from_cache,
+				'EEM_Message_Template'       => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Message_To_Generate_From_Request'                                                                         => array(
+				'EE_Message_Resource_Manager' => EE_Dependency_Map::load_from_cache,
+				'EE_Request_Handler'          => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandBus'                                                             => array(
+				'EventEspresso\core\services\commands\CommandHandlerManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\services\commands\CommandHandler'                                                              => array(
+				'EE_Registry'         => EE_Dependency_Map::load_from_cache,
+				'CommandBusInterface' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandHandlerManager'                                                  => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CompositeCommandHandler'                                                => array(
+				'EventEspresso\core\services\commands\CommandBus'     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\commands\CommandFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\CommandFactory'                                                         => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\middleware\CapChecker'                                                  => array(
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker'                                         => array(
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\capabilities\RegistrationsCapChecker'                                     => array(
+				'EE_Capabilities' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CreateRegistrationCommandHandler'                          => array(
+				'EventEspresso\core\domain\services\registration\CreateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommandHandler'                     => array(
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommandHandler'                    => array(
+				'EventEspresso\core\domain\services\registration\CopyRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler'         => array(
+				'EventEspresso\core\domain\services\registration\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler' => array(
+				'EventEspresso\core\domain\services\registration\UpdateRegistrationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommandHandler'                              => array(
+				'EventEspresso\core\domain\services\ticket\CreateTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\ticket\CancelTicketLineItemCommandHandler'                              => array(
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\registration\CancelRegistrationService'                                   => array(
+				'EventEspresso\core\domain\services\ticket\CancelTicketLineItemService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler'                                  => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\database\TableManager'                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Data_Migration_Class_Base'                                                                                => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_1_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_2_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_3_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_4_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_5_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_6_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_7_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_8_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_DMS_Core_4_9_0'                                                                                           => array(
+				'EventEspresso\core\services\database\TableAnalysis' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\database\TableManager'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\assets\I18nRegistry'                                                             => array(
+				array(),
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\assets\Registry'                                                                 => array(
+				'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\I18nRegistry'    => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCancelled'                                             => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoCheckout'                                              => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees'                                        => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoEvents'                                                => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoThankYou'                                              => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTicketSelector'                                        => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\shortcodes\EspressoTxnPage'                                               => array(
+				'EventEspresso\core\services\cache\PostRelatedCacheManager' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\cache\BasicCacheManager'                                                         => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\cache\PostRelatedCacheManager'                                                   => array(
+				'EventEspresso\core\services\cache\TransientCacheStorage' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\validation\email\EmailValidationService'                                  => array(
+				'EE_Registration_Config'                     => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\values\EmailAddress'                                                               => array(
+				null,
+				'EventEspresso\core\domain\services\validation\email\EmailValidationService' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\orm\ModelFieldFactory'                                                           => array(
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'LEGACY_MODELS'                                                                                               => array(
+				null,
+				'EventEspresso\core\services\database\ModelFieldFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Module_Request_Router'                                                                                    => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Registration_Processor'                                                                                   => array(
+				'EE_Request' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\notifications\PersistentAdminNoticeManager'                                      => array(
+				null,
+				'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                         => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\licensing\LicenseService'                                                        => array(
+				'EventEspresso\core\domain\services\pue\Stats'  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\pue\Config' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_Admin_Transactions_List_Table'                                                                            => array(
+				null,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\pue\Stats'                                                                => array(
+				'EventEspresso\core\domain\services\pue\Config'        => EE_Dependency_Map::load_from_cache,
+				'EE_Maintenance_Mode'                                  => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\services\pue\StatsGatherer' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\pue\Config'                                                               => array(
+				'EE_Network_Config' => EE_Dependency_Map::load_from_cache,
+				'EE_Config'         => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\pue\StatsGatherer'                                                        => array(
+				'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
+				'EEM_Event'          => EE_Dependency_Map::load_from_cache,
+				'EEM_Datetime'       => EE_Dependency_Map::load_from_cache,
+				'EEM_Ticket'         => EE_Dependency_Map::load_from_cache,
+				'EEM_Registration'   => EE_Dependency_Map::load_from_cache,
+				'EEM_Transaction'    => EE_Dependency_Map::load_from_cache,
+				'EE_Config'          => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\ExitModal'                                                          => array(
+				'EventEspresso\core\services\assets\Registry' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\PluginUpsells'                                                      => array(
+				'EventEspresso\core\domain\Domain' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\caffeinated\modules\recaptcha_invisible\InvisibleRecaptcha'                                    => array(
+				'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
+				'EE_Session'             => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\caffeinated\modules\recaptcha_invisible\RecaptchaAdminSettings'                                => array(
+				'EE_Registration_Config' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\modules\ticket_selector\ProcessTicketSelector'                                                 => array(
+				'EE_Core_Config'                                                          => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                             => EE_Dependency_Map::load_from_cache,
+				'EE_Session'                                                              => EE_Dependency_Map::load_from_cache,
+				'EEM_Ticket'                                                              => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\modules\ticket_selector\TicketDatetimeAvailabilityTracker'                                     => array(
+				'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions'                              => array(
+				'EE_Core_Config'                             => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomPostTypes'                                => array(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\custom_post_types\RegisterCustomTaxonomies'                               => array(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
+			),
+			'EE_CPT_Strategy'                                                                                             => array(
+				'EventEspresso\core\domain\entities\custom_post_types\CustomPostTypeDefinitions' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\entities\custom_post_types\CustomTaxonomyDefinitions' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\loaders\ObjectIdentifier'                                                        => array(
+				'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\assets\CoreAssetManager'                                                  => array(
+				'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
+				'EE_Currency_Config'                                 => EE_Dependency_Map::load_from_cache,
+				'EE_Template_Config'                                 => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\Domain'                   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\Registry'        => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\policy\PrivacyPolicy' => array(
+				'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\values\session\SessionLifespan' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendee' => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportAttendeeBillingData' => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+				'EEM_Payment_Method' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportCheckins' => array(
+				'EEM_Checkin' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportRegistration' => array(
+				'EEM_Registration' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\export\ExportTransaction' => array(
+				'EEM_Transaction' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAttendeeData' => array(
+				'EEM_Attendee' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\erasure\EraseAnswers' => array(
+				'EEM_Answer' => EE_Dependency_Map::load_from_cache,
+				'EEM_Question' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\CPTs\CptQueryModifier' => array(
+				null,
+				null,
+				null,
+				'EE_Request_Handler'                          => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\services\admin\privacy\forms\PrivacySettingsFormHandler' => array(
+				'EE_Registry' => EE_Dependency_Map::load_from_cache,
+				'EE_Config' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\services\editor\BlockRegistrationManager'                                                 => array(
+				'EventEspresso\core\services\assets\BlockAssetManagerCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\entities\editor\BlockCollection'      => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\route_match\RouteMatchSpecificationManager' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\request\Request'                    => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\editor\CoreBlocksAssetManager' => array(
+				'EventEspresso\core\domain\Domain'                   => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\AssetCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\assets\Registry'        => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\domain\entities\editor\blocks\EventAttendees' => array(
+				'EventEspresso\core\domain\entities\editor\CoreBlocksAssetManager' => self::load_from_cache,
+				'EventEspresso\core\services\request\Request' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\domain\entities\shortcodes\EspressoEventAttendees' => self::load_from_cache,
+			),
+			'EventEspresso\core\services\route_match\RouteMatchSpecificationDependencyResolver' => array(
+				'EventEspresso\core\services\container\Mirror' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\ClassInterfaceCache' => EE_Dependency_Map::load_from_cache,
+				'EE_Dependency_Map' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\route_match\RouteMatchSpecificationFactory' => array(
+				'EventEspresso\core\services\route_match\RouteMatchSpecificationDependencyResolver' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\loaders\Loader' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\services\route_match\RouteMatchSpecificationManager' => array(
+				'EventEspresso\core\services\route_match\RouteMatchSpecificationCollection' => EE_Dependency_Map::load_from_cache,
+				'EventEspresso\core\services\route_match\RouteMatchSpecificationFactory' => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\libraries\rest_api\CalculatedModelFields' => array(
+				'EventEspresso\core\libraries\rest_api\calculations\CalculatedModelFieldsFactory' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\libraries\rest_api\calculations\CalculatedModelFieldsFactory' => array(
+				'EventEspresso\core\services\loaders\Loader'  => EE_Dependency_Map::load_from_cache,
+			),
+			'EventEspresso\core\libraries\rest_api\controllers\model\Read' => array(
+				'EventEspresso\core\libraries\rest_api\CalculatedModelFields' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\libraries\rest_api\calculations\Datetime' => array(
+				'EEM_Datetime' => EE_Dependency_Map::load_from_cache,
+				'EEM_Registration' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\libraries\rest_api\calculations\Event' => array(
+				'EEM_Event' => EE_Dependency_Map::load_from_cache,
+				'EEM_Registration' => EE_Dependency_Map::load_from_cache
+			),
+			'EventEspresso\core\libraries\rest_api\calculations\Registration' => array(
+				'EEM_Registration' => EE_Dependency_Map::load_from_cache
+			),
+			'EE_URL_Validation_Strategy' => array(
+				null,
+				null,
+				'EventEspresso\core\services\validators\URLValidator' => EE_Dependency_Map::load_from_cache
+			),
+		);
+	}
+
+
+	/**
+	 * Registers how core classes are loaded.
+	 * This can either be done by simply providing the name of one of the EE_Registry loader methods such as:
+	 *        'EE_Request_Handler' => 'load_core'
+	 *        'EE_Messages_Queue'  => 'load_lib'
+	 *        'EEH_Debug_Tools'    => 'load_helper'
+	 * or, if greater control is required, by providing a custom closure. For example:
+	 *        'Some_Class' => function () {
+	 *            return new Some_Class();
+	 *        },
+	 * This is required for instantiating dependencies
+	 * where an interface has been type hinted in a class constructor. For example:
+	 *        'Required_Interface' => function () {
+	 *            return new A_Class_That_Implements_Required_Interface();
+	 *        },
+	 */
+	protected function _register_core_class_loaders()
+	{
+		$this->_class_loaders = array(
+			// load_core
+			'EE_Dependency_Map'                            => function () {
+				return $this;
+			},
+			'EE_Capabilities'                              => 'load_core',
+			'EE_Encryption'                                => 'load_core',
+			'EE_Front_Controller'                          => 'load_core',
+			'EE_Module_Request_Router'                     => 'load_core',
+			'EE_Registry'                                  => 'load_core',
+			'EE_Request'                                   => function () {
+				return $this->legacy_request;
+			},
+			'EventEspresso\core\services\request\Request'  => function () {
+				return $this->request;
+			},
+			'EventEspresso\core\services\request\Response' => function () {
+				return $this->response;
+			},
+			'EE_Base'                                      => 'load_core',
+			'EE_Request_Handler'                           => 'load_core',
+			'EE_Session'                                   => 'load_core',
+			'EE_Cron_Tasks'                                => 'load_core',
+			'EE_System'                                    => 'load_core',
+			'EE_Maintenance_Mode'                          => 'load_core',
+			'EE_Register_CPTs'                             => 'load_core',
+			'EE_Admin'                                     => 'load_core',
+			'EE_CPT_Strategy'                              => 'load_core',
+			// load_lib
+			'EE_Message_Resource_Manager'                  => 'load_lib',
+			'EE_Message_Type_Collection'                   => 'load_lib',
+			'EE_Message_Type_Collection_Loader'            => 'load_lib',
+			'EE_Messenger_Collection'                      => 'load_lib',
+			'EE_Messenger_Collection_Loader'               => 'load_lib',
+			'EE_Messages_Processor'                        => 'load_lib',
+			'EE_Message_Repository'                        => 'load_lib',
+			'EE_Messages_Queue'                            => 'load_lib',
+			'EE_Messages_Data_Handler_Collection'          => 'load_lib',
+			'EE_Message_Template_Group_Collection'         => 'load_lib',
+			'EE_Payment_Method_Manager'                    => 'load_lib',
+			'EE_Messages_Generator'                        => function () {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Generator',
+					array(),
+					false,
+					false
+				);
+			},
+			'EE_Messages_Template_Defaults'                => function ($arguments = array()) {
+				return EE_Registry::instance()->load_lib(
+					'Messages_Template_Defaults',
+					$arguments,
+					false,
+					false
+				);
+			},
+			// load_helper
+			'EEH_Parse_Shortcodes'                         => function () {
+				if (EE_Registry::instance()->load_helper('Parse_Shortcodes')) {
+					return new EEH_Parse_Shortcodes();
+				}
+				return null;
+			},
+			'EE_Template_Config'                           => function () {
+				return EE_Config::instance()->template_settings;
+			},
+			'EE_Currency_Config'                           => function () {
+				return EE_Config::instance()->currency;
+			},
+			'EE_Registration_Config'                       => function () {
+				return EE_Config::instance()->registration;
+			},
+			'EE_Core_Config'                               => function () {
+				return EE_Config::instance()->core;
+			},
+			'EventEspresso\core\services\loaders\Loader'   => function () {
+				return LoaderFactory::getLoader();
+			},
+			'EE_Network_Config'                            => function () {
+				return EE_Network_Config::instance();
+			},
+			'EE_Config'                                    => function () {
+				return EE_Config::instance();
+			},
+			'EventEspresso\core\domain\Domain'             => function () {
+				return DomainFactory::getEventEspressoCoreDomain();
+			},
+			'EE_Admin_Config'                              => function () {
+				return EE_Config::instance()->admin;
+			},
+		);
+	}
+
+
+	/**
+	 * can be used for supplying alternate names for classes,
+	 * or for connecting interface names to instantiable classes
+	 */
+	protected function _register_core_aliases()
+	{
+		$aliases = array(
+			'CommandBusInterface'                                                          => 'EventEspresso\core\services\commands\CommandBusInterface',
+			'EventEspresso\core\services\commands\CommandBusInterface'                     => 'EventEspresso\core\services\commands\CommandBus',
+			'CommandHandlerManagerInterface'                                               => 'EventEspresso\core\services\commands\CommandHandlerManagerInterface',
+			'EventEspresso\core\services\commands\CommandHandlerManagerInterface'          => 'EventEspresso\core\services\commands\CommandHandlerManager',
+			'CapChecker'                                                                   => 'EventEspresso\core\services\commands\middleware\CapChecker',
+			'AddActionHook'                                                                => 'EventEspresso\core\services\commands\middleware\AddActionHook',
+			'CapabilitiesChecker'                                                          => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CapabilitiesCheckerInterface'                                                 => 'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface',
+			'EventEspresso\core\domain\services\capabilities\CapabilitiesCheckerInterface' => 'EventEspresso\core\domain\services\capabilities\CapabilitiesChecker',
+			'CreateRegistrationService'                                                    => 'EventEspresso\core\domain\services\registration\CreateRegistrationService',
+			'CreateRegistrationCommandHandler'                                             => 'EventEspresso\core\services\commands\registration\CreateRegistrationCommand',
+			'CopyRegistrationDetailsCommandHandler'                                        => 'EventEspresso\core\services\commands\registration\CopyRegistrationDetailsCommand',
+			'CopyRegistrationPaymentsCommandHandler'                                       => 'EventEspresso\core\services\commands\registration\CopyRegistrationPaymentsCommand',
+			'CancelRegistrationAndTicketLineItemCommandHandler'                            => 'EventEspresso\core\services\commands\registration\CancelRegistrationAndTicketLineItemCommandHandler',
+			'UpdateRegistrationAndTransactionAfterChangeCommandHandler'                    => 'EventEspresso\core\services\commands\registration\UpdateRegistrationAndTransactionAfterChangeCommandHandler',
+			'CreateTicketLineItemCommandHandler'                                           => 'EventEspresso\core\services\commands\ticket\CreateTicketLineItemCommand',
+			'CreateTransactionCommandHandler'                                              => 'EventEspresso\core\services\commands\transaction\CreateTransactionCommandHandler',
+			'CreateAttendeeCommandHandler'                                                 => 'EventEspresso\core\services\commands\attendee\CreateAttendeeCommandHandler',
+			'TableManager'                                                                 => 'EventEspresso\core\services\database\TableManager',
+			'TableAnalysis'                                                                => 'EventEspresso\core\services\database\TableAnalysis',
+			'EspressoShortcode'                                                            => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'ShortcodeInterface'                                                           => 'EventEspresso\core\services\shortcodes\ShortcodeInterface',
+			'EventEspresso\core\services\shortcodes\ShortcodeInterface'                    => 'EventEspresso\core\services\shortcodes\EspressoShortcode',
+			'EventEspresso\core\services\cache\CacheStorageInterface'                      => 'EventEspresso\core\services\cache\TransientCacheStorage',
+			'LoaderInterface'                                                              => 'EventEspresso\core\services\loaders\LoaderInterface',
+			'EventEspresso\core\services\loaders\LoaderInterface'                          => 'EventEspresso\core\services\loaders\Loader',
+			'CommandFactoryInterface'                                                      => 'EventEspresso\core\services\commands\CommandFactoryInterface',
+			'EventEspresso\core\services\commands\CommandFactoryInterface'                 => 'EventEspresso\core\services\commands\CommandFactory',
+			'EmailValidatorInterface'                                                      => 'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface',
+			'EventEspresso\core\domain\services\validation\email\EmailValidatorInterface'  => 'EventEspresso\core\domain\services\validation\email\EmailValidationService',
+			'NoticeConverterInterface'                                                     => 'EventEspresso\core\services\notices\NoticeConverterInterface',
+			'EventEspresso\core\services\notices\NoticeConverterInterface'                 => 'EventEspresso\core\services\notices\ConvertNoticesToEeErrors',
+			'NoticesContainerInterface'                                                    => 'EventEspresso\core\services\notices\NoticesContainerInterface',
+			'EventEspresso\core\services\notices\NoticesContainerInterface'                => 'EventEspresso\core\services\notices\NoticesContainer',
+			'EventEspresso\core\services\request\RequestInterface'                         => 'EventEspresso\core\services\request\Request',
+			'EventEspresso\core\services\request\ResponseInterface'                        => 'EventEspresso\core\services\request\Response',
+			'EventEspresso\core\domain\DomainInterface'                                    => 'EventEspresso\core\domain\Domain',
+		);
+		foreach ($aliases as $alias => $fqn) {
+			if (is_array($fqn)) {
+				foreach ($fqn as $class => $for_class) {
+					$this->class_cache->addAlias($class, $alias, $for_class);
+				}
+				continue;
+			}
+			$this->class_cache->addAlias($fqn, $alias);
+		}
+		if (! (defined('DOING_AJAX') && DOING_AJAX) && is_admin()) {
+			$this->class_cache->addAlias(
+				'EventEspresso\core\services\notices\ConvertNoticesToAdminNotices',
+				'EventEspresso\core\services\notices\NoticeConverterInterface'
+			);
+		}
+	}
+
+
+	/**
+	 * This is used to reset the internal map and class_loaders to their original default state at the beginning of the
+	 * request Primarily used by unit tests.
+	 */
+	public function reset()
+	{
+		$this->_register_core_class_loaders();
+		$this->_register_core_dependencies();
+	}
+
+
+	/**
+	 * PLZ NOTE: a better name for this method would be is_alias()
+	 * because it returns TRUE if the provided fully qualified name IS an alias
+	 * WHY?
+	 * Because if a class is type hinting for a concretion,
+	 * then why would we need to find another class to supply it?
+	 * ie: if a class asks for `Fully/Qualified/Namespace/SpecificClassName`,
+	 * then give it an instance of `Fully/Qualified/Namespace/SpecificClassName`.
+	 * Don't go looking for some substitute.
+	 * Whereas if a class is type hinting for an interface...
+	 * then we need to find an actual class to use.
+	 * So the interface IS the alias for some other FQN,
+	 * and we need to find out if `Fully/Qualified/Namespace/SomeInterface`
+	 * represents some other class.
+	 *
+	 * @deprecated 4.9.62.p
+	 * @param string $fqn
+	 * @param string $for_class
+	 * @return bool
+	 */
+	public function has_alias($fqn = '', $for_class = '')
+	{
+		return $this->isAlias($fqn, $for_class);
+	}
+
+
+	/**
+	 * PLZ NOTE: a better name for this method would be get_fqn_for_alias()
+	 * because it returns a FQN for provided alias if one exists, otherwise returns the original $alias
+	 * functions recursively, so that multiple aliases can be used to drill down to a FQN
+	 *  for example:
+	 *      if the following two entries were added to the _aliases array:
+	 *          array(
+	 *              'interface_alias'           => 'some\namespace\interface'
+	 *              'some\namespace\interface'  => 'some\namespace\classname'
+	 *          )
+	 *      then one could use EE_Registry::instance()->create( 'interface_alias' )
+	 *      to load an instance of 'some\namespace\classname'
+	 *
+	 * @deprecated 4.9.62.p
+	 * @param string $alias
+	 * @param string $for_class
+	 * @return string
+	 */
+	public function get_alias($alias = '', $for_class = '')
+	{
+		return $this->getFqnForAlias($alias, $for_class);
+	}
 }