eventespresso / event-espresso-core

modules/ticket_selector/EED_Ticket_Selector.module.php

Indentation +1200 added lines, -1200 removed lines

@@ -1,5 +1,5 @@ 
 <?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {
-    exit('No direct script access allowed');
+	exit('No direct script access allowed');
 }
 
 
@@ -14,1211 +14,1211 @@ 
 class EED_Ticket_Selector extends EED_Module
 {
 
-    const debug = false;    //	true false
-
-    /**
-     * event that ticket selector is being generated for
-     *
-     * @access protected
-     * @var \EE_Event
-     */
-    protected static $_event;
-
-    /**
-     * array of datetimes and the spaces available for them
-     *
-     * @access private
-     * @var array
-     */
-    private static $_available_spaces = array();
-
-    /**
-     * max attendees that can register for event at one time
-     *
-     * @access private
-     * @var int
-     */
-    private static $_max_atndz = EE_INF;
-
-
-
-    /**
-     * Used to flag when the ticket selector is being called from an external iframe.
-     *
-     * @var bool
-     */
-    protected static $_in_iframe = false;
-
-
-
-    /**
-     * @return EED_Ticket_Selector
-     */
-    public static function instance()
-    {
-        return parent::get_instance(__CLASS__);
-    }
-
-
-
-    protected function set_config()
-    {
-        $this->set_config_section('template_settings');
-        $this->set_config_class('EE_Ticket_Selector_Config');
-        $this->set_config_name('EED_Ticket_Selector');
-    }
-
-
-
-    /**
-     *    set_hooks - for hooking into EE Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function set_hooks()
-    {
-        // routing
-        EE_Config::register_route('iframe', 'EED_Ticket_Selector', 'ticket_selector_iframe', 'ticket_selector');
-        EE_Config::register_route('process_ticket_selections', 'EED_Ticket_Selector', 'process_ticket_selections');
-        EE_Config::register_route('cancel_ticket_selections', 'EED_Ticket_Selector', 'cancel_ticket_selections');
-        add_action('wp_loaded', array('EED_Ticket_Selector', 'set_definitions'), 2);
-        add_action('AHEE_event_details_header_bottom', array('EED_Ticket_Selector', 'display_ticket_selector'), 10, 1);
-        add_action('wp_enqueue_scripts', array('EED_Ticket_Selector', 'load_tckt_slctr_assets'), 10);
-    }
-
-
-
-    /**
-     *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function set_hooks_admin()
-    {
-        add_action('wp_loaded', array('EED_Ticket_Selector', 'set_definitions'), 2);
-        //add button for iframe code to event editor.
-        add_filter('get_sample_permalink_html', array('EED_Ticket_Selector', 'iframe_code_button'), 10, 2);
-        add_action('admin_enqueue_scripts', array('EED_Ticket_Selector', 'load_tckt_slctr_assets_admin'), 10);
-    }
-
-
-
-    /**
-     *    set_definitions
-     *
-     * @access    public
-     * @return    void
-     */
-    public static function set_definitions()
-    {
-        define('TICKET_SELECTOR_ASSETS_URL', plugin_dir_url(__FILE__) . 'assets' . DS);
-        define('TICKET_SELECTOR_TEMPLATES_PATH', str_replace('\\', DS, plugin_dir_path(__FILE__)) . 'templates' . DS);
-        //if config is not set, initialize
-        //If config is not set, set it.
-        if (EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector === null) {
-            EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector = new EE_Ticket_Selector_Config();
-        }
-        EE_Registry::$i18n_js_strings['ts_embed_iframe_title'] = __('Copy and Paste the following:', 'event_espresso');
-    }
-
-
-
-    /**
-     *    gets the ball rolling
-     *
-     * @access public
-     * @param    WP $WP
-     * @return void
-     */
-    public function run($WP)
-    {
-    }
-
-
-
-    /**
-     * ticket_selector_iframe
-     *
-     * @access    public
-     * @return    void
-     * @throws \EE_Error
-     */
-    public function ticket_selector_iframe()
-    {
-        self::$_in_iframe = true;
-        /** @type EEM_Event $EEM_Event */
-        $EEM_Event = EE_Registry::instance()->load_model('Event');
-        $event = $EEM_Event->get_one_by_ID(
-            EE_Registry::instance()->REQ->get('event', 0)
-        );
-        EE_Registry::instance()->REQ->set_espresso_page(true);
-        $template_args['ticket_selector'] = EED_Ticket_Selector::display_ticket_selector($event);
-        $template_args['css'] = apply_filters(
-            'FHEE__EED_Ticket_Selector__ticket_selector_iframe__css',
-            array(
-                TICKET_SELECTOR_ASSETS_URL . 'ticket_selector_embed.css?ver=' . EVENT_ESPRESSO_VERSION,
-                TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.css?ver=' . EVENT_ESPRESSO_VERSION,
-                includes_url('css/dashicons.min.css?ver=' . $GLOBALS['wp_version']),
-                EE_GLOBAL_ASSETS_URL . 'css/espresso_default.css?ver=' . EVENT_ESPRESSO_VERSION,
-            )
-        );
-        EE_Registry::$i18n_js_strings['ticket_selector_iframe'] = true;
-        EE_Registry::$i18n_js_strings['EEDTicketSelectorMsg'] = esc_html__('Please choose at least one ticket before continuing.',
-            'event_espresso');
-        $template_args['eei18n'] = apply_filters(
-            'FHEE__EED_Ticket_Selector__ticket_selector_iframe__eei18n_js_strings',
-            EE_Registry::localize_i18n_js_strings()
-        );
-        $template_args['js'] = apply_filters(
-            'FHEE__EED_Ticket_Selector__ticket_selector_iframe__js',
-            array(
-                includes_url('js/jquery/jquery.js?ver=' . $GLOBALS['wp_version']),
-                EE_GLOBAL_ASSETS_URL . 'scripts/espresso_core.js?ver=' . EVENT_ESPRESSO_VERSION,
-                TICKET_SELECTOR_ASSETS_URL . 'ticket_selector_iframe_embed.js?ver=' . EVENT_ESPRESSO_VERSION,
-            )
-        );
-        $template_args['notices'] = EEH_Template::display_template(
-            EE_TEMPLATES . 'espresso-ajax-notices.template.php',
-            array(),
-            true
-        );
-        EEH_Template::display_template(
-            TICKET_SELECTOR_TEMPLATES_PATH . 'ticket_selector_chart_iframe.template.php',
-            $template_args
-        );
-        exit;
-    }
-
-
-
-    /**
-     * Adds an iframe embed code button to the Event editor.
-     *
-     * @param string $permalink_string The current html string for the permalink section.
-     * @param int    $id               The post id for the event.
-     * @return string The new html string for the permalink area.
-     */
-    public static function iframe_code_button($permalink_string, $id )
-    {
-        //make sure this is ONLY when editing and the event id has been set.
-        if ( ! empty($id)) {
-            $post = get_post($id);
-            //if NOT event then let's get out.
-            if ($post->post_type !== 'espresso_events') {
-                return $permalink_string;
-            }
-            $permalink_string .= '<a id="js-ticket-selector-embed-trigger" class="button button-small" href="#"  tabindex="-1">'
-                                 . __('Embed', 'event_espresso')
-                                 . '</a> ';
-            $ticket_selector_url = add_query_arg(array('ticket_selector' => 'iframe', 'event' => $id), site_url());
-            $iframe_string = esc_html(
-                '<iframe src="' . $ticket_selector_url . '" width="100%" height="100%"></iframe>'
-            );
-            $permalink_string .= '
+	const debug = false;    //	true false
+
+	/**
+	 * event that ticket selector is being generated for
+	 *
+	 * @access protected
+	 * @var \EE_Event
+	 */
+	protected static $_event;
+
+	/**
+	 * array of datetimes and the spaces available for them
+	 *
+	 * @access private
+	 * @var array
+	 */
+	private static $_available_spaces = array();
+
+	/**
+	 * max attendees that can register for event at one time
+	 *
+	 * @access private
+	 * @var int
+	 */
+	private static $_max_atndz = EE_INF;
+
+
+
+	/**
+	 * Used to flag when the ticket selector is being called from an external iframe.
+	 *
+	 * @var bool
+	 */
+	protected static $_in_iframe = false;
+
+
+
+	/**
+	 * @return EED_Ticket_Selector
+	 */
+	public static function instance()
+	{
+		return parent::get_instance(__CLASS__);
+	}
+
+
+
+	protected function set_config()
+	{
+		$this->set_config_section('template_settings');
+		$this->set_config_class('EE_Ticket_Selector_Config');
+		$this->set_config_name('EED_Ticket_Selector');
+	}
+
+
+
+	/**
+	 *    set_hooks - for hooking into EE Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function set_hooks()
+	{
+		// routing
+		EE_Config::register_route('iframe', 'EED_Ticket_Selector', 'ticket_selector_iframe', 'ticket_selector');
+		EE_Config::register_route('process_ticket_selections', 'EED_Ticket_Selector', 'process_ticket_selections');
+		EE_Config::register_route('cancel_ticket_selections', 'EED_Ticket_Selector', 'cancel_ticket_selections');
+		add_action('wp_loaded', array('EED_Ticket_Selector', 'set_definitions'), 2);
+		add_action('AHEE_event_details_header_bottom', array('EED_Ticket_Selector', 'display_ticket_selector'), 10, 1);
+		add_action('wp_enqueue_scripts', array('EED_Ticket_Selector', 'load_tckt_slctr_assets'), 10);
+	}
+
+
+
+	/**
+	 *    set_hooks_admin - for hooking into EE Admin Core, other modules, etc
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function set_hooks_admin()
+	{
+		add_action('wp_loaded', array('EED_Ticket_Selector', 'set_definitions'), 2);
+		//add button for iframe code to event editor.
+		add_filter('get_sample_permalink_html', array('EED_Ticket_Selector', 'iframe_code_button'), 10, 2);
+		add_action('admin_enqueue_scripts', array('EED_Ticket_Selector', 'load_tckt_slctr_assets_admin'), 10);
+	}
+
+
+
+	/**
+	 *    set_definitions
+	 *
+	 * @access    public
+	 * @return    void
+	 */
+	public static function set_definitions()
+	{
+		define('TICKET_SELECTOR_ASSETS_URL', plugin_dir_url(__FILE__) . 'assets' . DS);
+		define('TICKET_SELECTOR_TEMPLATES_PATH', str_replace('\\', DS, plugin_dir_path(__FILE__)) . 'templates' . DS);
+		//if config is not set, initialize
+		//If config is not set, set it.
+		if (EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector === null) {
+			EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector = new EE_Ticket_Selector_Config();
+		}
+		EE_Registry::$i18n_js_strings['ts_embed_iframe_title'] = __('Copy and Paste the following:', 'event_espresso');
+	}
+
+
+
+	/**
+	 *    gets the ball rolling
+	 *
+	 * @access public
+	 * @param    WP $WP
+	 * @return void
+	 */
+	public function run($WP)
+	{
+	}
+
+
+
+	/**
+	 * ticket_selector_iframe
+	 *
+	 * @access    public
+	 * @return    void
+	 * @throws \EE_Error
+	 */
+	public function ticket_selector_iframe()
+	{
+		self::$_in_iframe = true;
+		/** @type EEM_Event $EEM_Event */
+		$EEM_Event = EE_Registry::instance()->load_model('Event');
+		$event = $EEM_Event->get_one_by_ID(
+			EE_Registry::instance()->REQ->get('event', 0)
+		);
+		EE_Registry::instance()->REQ->set_espresso_page(true);
+		$template_args['ticket_selector'] = EED_Ticket_Selector::display_ticket_selector($event);
+		$template_args['css'] = apply_filters(
+			'FHEE__EED_Ticket_Selector__ticket_selector_iframe__css',
+			array(
+				TICKET_SELECTOR_ASSETS_URL . 'ticket_selector_embed.css?ver=' . EVENT_ESPRESSO_VERSION,
+				TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.css?ver=' . EVENT_ESPRESSO_VERSION,
+				includes_url('css/dashicons.min.css?ver=' . $GLOBALS['wp_version']),
+				EE_GLOBAL_ASSETS_URL . 'css/espresso_default.css?ver=' . EVENT_ESPRESSO_VERSION,
+			)
+		);
+		EE_Registry::$i18n_js_strings['ticket_selector_iframe'] = true;
+		EE_Registry::$i18n_js_strings['EEDTicketSelectorMsg'] = esc_html__('Please choose at least one ticket before continuing.',
+			'event_espresso');
+		$template_args['eei18n'] = apply_filters(
+			'FHEE__EED_Ticket_Selector__ticket_selector_iframe__eei18n_js_strings',
+			EE_Registry::localize_i18n_js_strings()
+		);
+		$template_args['js'] = apply_filters(
+			'FHEE__EED_Ticket_Selector__ticket_selector_iframe__js',
+			array(
+				includes_url('js/jquery/jquery.js?ver=' . $GLOBALS['wp_version']),
+				EE_GLOBAL_ASSETS_URL . 'scripts/espresso_core.js?ver=' . EVENT_ESPRESSO_VERSION,
+				TICKET_SELECTOR_ASSETS_URL . 'ticket_selector_iframe_embed.js?ver=' . EVENT_ESPRESSO_VERSION,
+			)
+		);
+		$template_args['notices'] = EEH_Template::display_template(
+			EE_TEMPLATES . 'espresso-ajax-notices.template.php',
+			array(),
+			true
+		);
+		EEH_Template::display_template(
+			TICKET_SELECTOR_TEMPLATES_PATH . 'ticket_selector_chart_iframe.template.php',
+			$template_args
+		);
+		exit;
+	}
+
+
+
+	/**
+	 * Adds an iframe embed code button to the Event editor.
+	 *
+	 * @param string $permalink_string The current html string for the permalink section.
+	 * @param int    $id               The post id for the event.
+	 * @return string The new html string for the permalink area.
+	 */
+	public static function iframe_code_button($permalink_string, $id )
+	{
+		//make sure this is ONLY when editing and the event id has been set.
+		if ( ! empty($id)) {
+			$post = get_post($id);
+			//if NOT event then let's get out.
+			if ($post->post_type !== 'espresso_events') {
+				return $permalink_string;
+			}
+			$permalink_string .= '<a id="js-ticket-selector-embed-trigger" class="button button-small" href="#"  tabindex="-1">'
+								 . __('Embed', 'event_espresso')
+								 . '</a> ';
+			$ticket_selector_url = add_query_arg(array('ticket_selector' => 'iframe', 'event' => $id), site_url());
+			$iframe_string = esc_html(
+				'<iframe src="' . $ticket_selector_url . '" width="100%" height="100%"></iframe>'
+			);
+			$permalink_string .= '
 <div id="js-ts-iframe" style="display:none">
 	<div style="width:100%; height: 500px;">
 		' . $iframe_string . '
 	</div>
 </div>';
-        }
-        return $permalink_string;
-    }
-
-
-
-    /**
-     *    finds and sets the EE_Event object for use throughout class
-     *
-     * @access    public
-     * @param    mixed $event
-     * @return    bool
-     */
-    protected static function set_event($event = null)
-    {
-        if ($event === null) {
-            global $post;
-            $event = $post;
-        }
-        if ($event instanceof EE_Event) {
-            self::$_event = $event;
-        } else if ($event instanceof WP_Post ) {
-            if ( isset($event->EE_Event) && $event->EE_Event instanceof EE_Event) {
-                self::$_event = $event->EE_Event;
-            } else if ( $event->post_type === 'espresso_events') {
-                $event->EE_Event = EEM_Event::instance()->instantiate_class_from_post_object($event);
-                self::$_event = $event->EE_Event;
-            }
-        } else {
-            $user_msg = __('No Event object or an invalid Event object was supplied.', 'event_espresso');
-            $dev_msg = $user_msg
-                       . __('In order to generate a ticket selector, please ensure you are passing either an EE_Event object or a WP_Post object of the post type "espresso_event" to the EE_Ticket_Selector class constructor.',
-                    'event_espresso');
-            EE_Error::add_error($user_msg . '||' . $dev_msg, __FILE__, __FUNCTION__, __LINE__);
-            return false;
-        }
-        return true;
-    }
-
-
-
-    /**
-     * creates buttons for selecting number of attendees for an event
-     *
-     * @access public
-     * @param EE_Event $event
-     * @param bool     $view_details
-     * @return string
-     * @throws \EE_Error
-     */
-    public static function display_ticket_selector($event = null, $view_details = false)
-    {
-        // reset filter for displaying submit button
-        remove_filter('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', '__return_true');
-        // poke and prod incoming event till it tells us what it is
-        if ( ! EED_Ticket_Selector::set_event($event)) {
-            return false;
-        }
-        $event_post = self::$_event instanceof EE_Event ? self::$_event->ID() : $event;
-        // grab event status
-        $_event_active_status = self::$_event->get_active_status();
-        if (
-            ! is_admin()
-            && (
-                ! self::$_event->display_ticket_selector()
-                || $view_details
-                || post_password_required($event_post)
-                || (
-                    $_event_active_status !== EE_Datetime::active
-                    && $_event_active_status !== EE_Datetime::upcoming
-                    && $_event_active_status !== EE_Datetime::sold_out
-                    && ! (
-                        $_event_active_status === EE_Datetime::inactive
-                        && is_user_logged_in()
-                    )
-                )
-            )
-        ) {
-            return ! is_single() ? EED_Ticket_Selector::display_view_details_btn() : '';
-        }
-        $template_args = array();
-        $template_args['event_status'] = $_event_active_status;
-        $template_args['date_format'] = apply_filters('FHEE__EED_Ticket_Selector__display_ticket_selector__date_format',
-            get_option('date_format'));
-        $template_args['time_format'] = apply_filters('FHEE__EED_Ticket_Selector__display_ticket_selector__time_format',
-            get_option('time_format'));
-        $template_args['EVT_ID'] = self::$_event->ID();
-        $template_args['event'] = self::$_event;
-        // is the event expired ?
-        $template_args['event_is_expired'] = self::$_event->is_expired();
-        if ($template_args['event_is_expired']) {
-            return '<div class="ee-event-expired-notice"><span class="important-notice">'
-                   . __('We\'re sorry, but all tickets sales have ended because the event is expired.',
-                'event_espresso')
-                   . '</span></div>';
-        }
-        $ticket_query_args = array(
-            array('Datetime.EVT_ID' => self::$_event->ID()),
-            'order_by' => array(
-                'TKT_order'              => 'ASC',
-                'TKT_required'           => 'DESC',
-                'TKT_start_date'         => 'ASC',
-                'TKT_end_date'           => 'ASC',
-                'Datetime.DTT_EVT_start' => 'DESC',
-            ),
-        );
-        if ( ! EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector->show_expired_tickets) {
-            //use the correct applicable time query depending on what version of core is being run.
-            $current_time = method_exists('EEM_Datetime', 'current_time_for_query') ? time()
-                : current_time('timestamp');
-            $ticket_query_args[0]['TKT_end_date'] = array('>', $current_time);
-        }
-        // get all tickets for this event ordered by the datetime
-        $template_args['tickets'] = EEM_Ticket::instance()->get_all($ticket_query_args);
-        if (count($template_args['tickets']) < 1) {
-            return '<div class="ee-event-expired-notice"><span class="important-notice">'
-                   . __('We\'re sorry, but all ticket sales have ended.', 'event_espresso')
-                   . '</span></div>';
-        }
-        // filter the maximum qty that can appear in the Ticket Selector qty dropdowns
-        \EED_Ticket_Selector::$_max_atndz = apply_filters(
-            'FHEE__EE_Ticket_Selector__display_ticket_selector__max_tickets',
-            self::$_event->additional_limit()
-        );
-        $template_args['max_atndz'] = \EED_Ticket_Selector::$_max_atndz;
-        if ($template_args['max_atndz'] < 1) {
-            $sales_closed_msg = __('We\'re sorry, but ticket sales have been closed at this time. Please check back again later.',
-                'event_espresso');
-            if (current_user_can('edit_post', self::$_event->ID())) {
-                $sales_closed_msg .= sprintf(
-                    __('%sNote to Event Admin:%sThe "Maximum number of tickets allowed per order for this event" in the Event Registration Options has been set to "0". This effectively turns off ticket sales. %s(click to edit this event)%s',
-                        'event_espresso'),
-                    '<div class="ee-attention" style="text-align: left;"><b>',
-                    '</b><br />',
-                    $link = '<span class="edit-link"><a class="post-edit-link" href="'
-                            . get_edit_post_link(self::$_event->ID())
-                            . '">',
-                    '</a></span></div>'
-                );
-            }
-            return '<p><span class="important-notice">' . $sales_closed_msg . '</span></p>';
-        }
-        $templates['ticket_selector'] = TICKET_SELECTOR_TEMPLATES_PATH . 'ticket_selector_chart.template.php';
-        $templates['ticket_selector'] = apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector__template_path',
-            $templates['ticket_selector'], self::$_event);
-        // redirecting to another site for registration ??
-        $external_url = self::$_event->external_url() !== null || self::$_event->external_url() !== ''
-            ? self::$_event->external_url() : false;
-        // if not redirecting to another site for registration
-        if ( ! $external_url) {
-            // then display the ticket selector
-            $ticket_selector = EEH_Template::locate_template($templates['ticket_selector'], $template_args);
-        } else {
-            // if not we still need to trigger the display of the submit button
-            add_filter('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', '__return_true');
-            //display notice to admin that registration is external
-            $ticket_selector = ! is_admin() ? ''
-                : __('Registration is at an external URL for this event.', 'event_espresso');
-        }
-        // now set up the form (but not for the admin)
-        $ticket_selector = ! is_admin()
-            ? EED_Ticket_Selector::ticket_selector_form_open(
-                self::$_event->ID(),
-                $external_url
-            ) . $ticket_selector
-            : $ticket_selector;
-        // submit button and form close tag
-        $ticket_selector .= ! is_admin() ? EED_Ticket_Selector::display_ticket_selector_submit() : '';
-        // set no cache headers and constants
-        EE_System::do_not_cache();
-        return $ticket_selector;
-    }
-
-
-
-    /**
-     *    ticket_selector_form_open
-     *
-     * @access        public
-     * @param        int    $ID
-     * @param        string $external_url
-     * @return        string
-     */
-    public static function ticket_selector_form_open($ID = 0, $external_url = '')
-    {
-        // if redirecting, we don't need any anything else
-        if ($external_url) {
-            $html = '<form method="GET" action="' . EEH_URL::refactor_url($external_url) . '">';
-            $query_args = (array)EEH_URL::get_query_string($external_url);
-            foreach ($query_args as $query_arg => $value) {
-                $html .= '
+		}
+		return $permalink_string;
+	}
+
+
+
+	/**
+	 *    finds and sets the EE_Event object for use throughout class
+	 *
+	 * @access    public
+	 * @param    mixed $event
+	 * @return    bool
+	 */
+	protected static function set_event($event = null)
+	{
+		if ($event === null) {
+			global $post;
+			$event = $post;
+		}
+		if ($event instanceof EE_Event) {
+			self::$_event = $event;
+		} else if ($event instanceof WP_Post ) {
+			if ( isset($event->EE_Event) && $event->EE_Event instanceof EE_Event) {
+				self::$_event = $event->EE_Event;
+			} else if ( $event->post_type === 'espresso_events') {
+				$event->EE_Event = EEM_Event::instance()->instantiate_class_from_post_object($event);
+				self::$_event = $event->EE_Event;
+			}
+		} else {
+			$user_msg = __('No Event object or an invalid Event object was supplied.', 'event_espresso');
+			$dev_msg = $user_msg
+					   . __('In order to generate a ticket selector, please ensure you are passing either an EE_Event object or a WP_Post object of the post type "espresso_event" to the EE_Ticket_Selector class constructor.',
+					'event_espresso');
+			EE_Error::add_error($user_msg . '||' . $dev_msg, __FILE__, __FUNCTION__, __LINE__);
+			return false;
+		}
+		return true;
+	}
+
+
+
+	/**
+	 * creates buttons for selecting number of attendees for an event
+	 *
+	 * @access public
+	 * @param EE_Event $event
+	 * @param bool     $view_details
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public static function display_ticket_selector($event = null, $view_details = false)
+	{
+		// reset filter for displaying submit button
+		remove_filter('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', '__return_true');
+		// poke and prod incoming event till it tells us what it is
+		if ( ! EED_Ticket_Selector::set_event($event)) {
+			return false;
+		}
+		$event_post = self::$_event instanceof EE_Event ? self::$_event->ID() : $event;
+		// grab event status
+		$_event_active_status = self::$_event->get_active_status();
+		if (
+			! is_admin()
+			&& (
+				! self::$_event->display_ticket_selector()
+				|| $view_details
+				|| post_password_required($event_post)
+				|| (
+					$_event_active_status !== EE_Datetime::active
+					&& $_event_active_status !== EE_Datetime::upcoming
+					&& $_event_active_status !== EE_Datetime::sold_out
+					&& ! (
+						$_event_active_status === EE_Datetime::inactive
+						&& is_user_logged_in()
+					)
+				)
+			)
+		) {
+			return ! is_single() ? EED_Ticket_Selector::display_view_details_btn() : '';
+		}
+		$template_args = array();
+		$template_args['event_status'] = $_event_active_status;
+		$template_args['date_format'] = apply_filters('FHEE__EED_Ticket_Selector__display_ticket_selector__date_format',
+			get_option('date_format'));
+		$template_args['time_format'] = apply_filters('FHEE__EED_Ticket_Selector__display_ticket_selector__time_format',
+			get_option('time_format'));
+		$template_args['EVT_ID'] = self::$_event->ID();
+		$template_args['event'] = self::$_event;
+		// is the event expired ?
+		$template_args['event_is_expired'] = self::$_event->is_expired();
+		if ($template_args['event_is_expired']) {
+			return '<div class="ee-event-expired-notice"><span class="important-notice">'
+				   . __('We\'re sorry, but all tickets sales have ended because the event is expired.',
+				'event_espresso')
+				   . '</span></div>';
+		}
+		$ticket_query_args = array(
+			array('Datetime.EVT_ID' => self::$_event->ID()),
+			'order_by' => array(
+				'TKT_order'              => 'ASC',
+				'TKT_required'           => 'DESC',
+				'TKT_start_date'         => 'ASC',
+				'TKT_end_date'           => 'ASC',
+				'Datetime.DTT_EVT_start' => 'DESC',
+			),
+		);
+		if ( ! EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector->show_expired_tickets) {
+			//use the correct applicable time query depending on what version of core is being run.
+			$current_time = method_exists('EEM_Datetime', 'current_time_for_query') ? time()
+				: current_time('timestamp');
+			$ticket_query_args[0]['TKT_end_date'] = array('>', $current_time);
+		}
+		// get all tickets for this event ordered by the datetime
+		$template_args['tickets'] = EEM_Ticket::instance()->get_all($ticket_query_args);
+		if (count($template_args['tickets']) < 1) {
+			return '<div class="ee-event-expired-notice"><span class="important-notice">'
+				   . __('We\'re sorry, but all ticket sales have ended.', 'event_espresso')
+				   . '</span></div>';
+		}
+		// filter the maximum qty that can appear in the Ticket Selector qty dropdowns
+		\EED_Ticket_Selector::$_max_atndz = apply_filters(
+			'FHEE__EE_Ticket_Selector__display_ticket_selector__max_tickets',
+			self::$_event->additional_limit()
+		);
+		$template_args['max_atndz'] = \EED_Ticket_Selector::$_max_atndz;
+		if ($template_args['max_atndz'] < 1) {
+			$sales_closed_msg = __('We\'re sorry, but ticket sales have been closed at this time. Please check back again later.',
+				'event_espresso');
+			if (current_user_can('edit_post', self::$_event->ID())) {
+				$sales_closed_msg .= sprintf(
+					__('%sNote to Event Admin:%sThe "Maximum number of tickets allowed per order for this event" in the Event Registration Options has been set to "0". This effectively turns off ticket sales. %s(click to edit this event)%s',
+						'event_espresso'),
+					'<div class="ee-attention" style="text-align: left;"><b>',
+					'</b><br />',
+					$link = '<span class="edit-link"><a class="post-edit-link" href="'
+							. get_edit_post_link(self::$_event->ID())
+							. '">',
+					'</a></span></div>'
+				);
+			}
+			return '<p><span class="important-notice">' . $sales_closed_msg . '</span></p>';
+		}
+		$templates['ticket_selector'] = TICKET_SELECTOR_TEMPLATES_PATH . 'ticket_selector_chart.template.php';
+		$templates['ticket_selector'] = apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector__template_path',
+			$templates['ticket_selector'], self::$_event);
+		// redirecting to another site for registration ??
+		$external_url = self::$_event->external_url() !== null || self::$_event->external_url() !== ''
+			? self::$_event->external_url() : false;
+		// if not redirecting to another site for registration
+		if ( ! $external_url) {
+			// then display the ticket selector
+			$ticket_selector = EEH_Template::locate_template($templates['ticket_selector'], $template_args);
+		} else {
+			// if not we still need to trigger the display of the submit button
+			add_filter('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', '__return_true');
+			//display notice to admin that registration is external
+			$ticket_selector = ! is_admin() ? ''
+				: __('Registration is at an external URL for this event.', 'event_espresso');
+		}
+		// now set up the form (but not for the admin)
+		$ticket_selector = ! is_admin()
+			? EED_Ticket_Selector::ticket_selector_form_open(
+				self::$_event->ID(),
+				$external_url
+			) . $ticket_selector
+			: $ticket_selector;
+		// submit button and form close tag
+		$ticket_selector .= ! is_admin() ? EED_Ticket_Selector::display_ticket_selector_submit() : '';
+		// set no cache headers and constants
+		EE_System::do_not_cache();
+		return $ticket_selector;
+	}
+
+
+
+	/**
+	 *    ticket_selector_form_open
+	 *
+	 * @access        public
+	 * @param        int    $ID
+	 * @param        string $external_url
+	 * @return        string
+	 */
+	public static function ticket_selector_form_open($ID = 0, $external_url = '')
+	{
+		// if redirecting, we don't need any anything else
+		if ($external_url) {
+			$html = '<form method="GET" action="' . EEH_URL::refactor_url($external_url) . '">';
+			$query_args = (array)EEH_URL::get_query_string($external_url);
+			foreach ($query_args as $query_arg => $value) {
+				$html .= '
 				<input type="hidden" name="' . $query_arg . '" value="' . $value . '">';
-            }
-            return $html;
-        }
-        // if there is no submit button, then don't start building a form
-        // because the "View Details" button will build its own form
-        if ( ! apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', false)) {
-            return '';
-        }
-        $checkout_url = EEH_Event_View::event_link_url($ID);
-        if ( ! $checkout_url) {
-            EE_Error::add_error(__('The URL for the Event Details page could not be retrieved.', 'event_espresso'),
-                __FILE__, __FUNCTION__, __LINE__);
-        }
-        $extra_params = self::$_in_iframe ? ' target="_blank"' : '';
-        $html = '<form method="POST" action="' . $checkout_url . '"' . $extra_params . '>';
-        $html .= wp_nonce_field('process_ticket_selections', 'process_ticket_selections_nonce_' . $ID, true, false);
-        $html .= '<input type="hidden" name="ee" value="process_ticket_selections">';
-        $html = apply_filters('FHEE__EE_Ticket_Selector__ticket_selector_form_open__html', $html, self::$_event);
-        return $html;
-    }
-
-
-
-    /**
-     *    display_ticket_selector_submit
-     *
-     * @access        public
-     * @access        public
-     * @return        string
-     * @throws \EE_Error
-     */
-    public static function display_ticket_selector_submit()
-    {
-        $html = '';
-        if ( ! is_admin()) {
-            // standard TS displayed with submit button, ie: "Register Now"
-            if (apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', false)) {
-                $html .= \EED_Ticket_Selector::display_register_now_button();
-                $html .= empty($external_url) ?
-                    \EED_Ticket_Selector::no_tkt_slctr_end_dv()
-                    : \EED_Ticket_Selector::clear_tkt_slctr();
-                $html .= '<br/>' . \EED_Ticket_Selector::ticket_selector_form_close();
-            } else if ( EED_Ticket_Selector::$_max_atndz === 1 ) {
-                // its a "Dude Where's my Ticket Selector?" (DWMTS) type event (ie: $_max_atndz === 1)
-                if ( EED_Ticket_Selector::$_event->is_sold_out() ) {
-                    // then instead of a View Details or Submit button, just display a "Sold Out" message
-                    $html .= apply_filters(
-                        'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__sold_out_msg',
-                        sprintf(
-                            __(
-                                '%1$s"%2$s" is currently sold out.%4$sPlease check back again later, as spots may become available.%3$s',
-                                'event_espresso'
-                            ),
-                            '<p class="no-ticket-selector-msg clear-float">',
-                            EED_Ticket_Selector::$_event->name(),
-                            '</p>',
-                            '<br />'
-                        ),
-                        EED_Ticket_Selector::$_event
-                    );
-                    if (
-                        apply_filters(
-                            'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__no_tickets_but_display_register_now_button',
-                            false,
-                            EED_Ticket_Selector::$_event
-                        )
-                    ) {
-                        $html .= \EED_Ticket_Selector::display_register_now_button();
-                    }
-                    // sold out DWMTS event, no TS, no submit or view details button, but has additional content
-                    $html .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
-                } else if (
-                    apply_filters('FHEE__EE_Ticket_Selector__hide_ticket_selector', false)
-                    && ! is_single()
-                ) {
-                    // this is a "Dude Where's my Ticket Selector?" (DWMTS) type event,
-                    // but no tickets are available, so display event's "View Details" button.
-                    // it is being viewed via somewhere other than a single post
-                    $html .= EED_Ticket_Selector::display_view_details_btn(true);
-                }
-            } else if (is_archive()) {
-                // event list, no tickets available so display event's "View Details" button
-                $html .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
-                $html .= EED_Ticket_Selector::display_view_details_btn();
-            } else {
-                if (
-                    apply_filters(
-                        'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__no_tickets_but_display_register_now_button',
-                        false,
-                        EED_Ticket_Selector::$_event
-                    )
-                ) {
-                    $html .= \EED_Ticket_Selector::display_register_now_button();
-                }
-                // no submit or view details button, and no additional content
-                $html .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
-            }
-            if ( ! is_archive()) {
-                $html .= \EEH_Template::powered_by_event_espresso('', '', array('utm_content' => 'ticket_selector'));
-            }
-        }
-        return $html;
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public static function clear_tkt_slctr()
-    {
-        // standard TS displayed, appears after a "Register Now" or "view Details" button
-        return '<div class="clear"></div>';
-    }
-
-
-
-    /**
-     * @deprecated 4.9.13
-     * @return string
-     */
-    public static function tkt_slctr_end_dv()
-    {
-        return \EED_Ticket_Selector::clear_tkt_slctr();
-    }
-
-
-
-    /**
-     * @return string
-     */
-    public static function no_tkt_slctr_end_dv()
-    {
-        // DWMTS event, no TS, appears after a "Register Now" or "view Details" button
-        return '<div class="clear"></div></div>';
-    }
-
-
-
-    /**
-     *    ticket_selector_form_close
-     *
-     * @access        public
-     * @access        public
-     * @return        string
-     */
-    public static function ticket_selector_form_close()
-    {
-        return '</form>';
-    }
-
-
-
-    /**
-     * @return string
-     * @throws \EE_Error
-     */
-    public static function display_register_now_button()
-    {
-        $btn_text = apply_filters(
-            'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__btn_text',
-            __('Register Now', 'event_espresso'),
-            EED_Ticket_Selector::$_event
-        );
-        $external_url = EED_Ticket_Selector::$_event->external_url();
-        $html = '<input id="ticket-selector-submit-' . EED_Ticket_Selector::$_event->ID() . '-btn"';
-        $html .= ' class="ticket-selector-submit-btn ';
-        $html .= empty($external_url) ? 'ticket-selector-submit-ajax"' : '"';
-        $html .= ' type="submit" value="' . $btn_text . '" />';
-        $html .= apply_filters(
-            'FHEE__EE_Ticket_Selector__after_ticket_selector_submit',
-            '',
-            EED_Ticket_Selector::$_event
-        );
-        return $html;
-    }
-
-
-    /**
-     * display_view_details_btn
-     *
-     * @access public
-     * @param bool $DWMTS indicates a "Dude Where's my Ticket Selector?" (DWMTS) type event
-     *                    (ie: $_max_atndz === 1) where there are no available tickets,
-     *                    either because they are sold out, expired, or not yet on sale.
-     *                    In this case, we need to close the form BEFORE adding any closing divs
-     * @return string
-     * @throws \EE_Error
-     */
-    public static function display_view_details_btn($DWMTS = false)
-    {
-        if ( ! self::$_event->get_permalink()) {
-            EE_Error::add_error(
-                __('The URL for the Event Details page could not be retrieved.', 'event_espresso'),
-                __FILE__, __FUNCTION__, __LINE__
-            );
-        }
-        $view_details_btn = '<form method="POST" action="';
-        $view_details_btn .= apply_filters(
-            'FHEE__EE_Ticket_Selector__display_view_details_btn__btn_url',
-            self::$_event->get_permalink(),
-            self::$_event
-        );
-        $view_details_btn .= '">';
-        $btn_text = apply_filters(
-            'FHEE__EE_Ticket_Selector__display_view_details_btn__btn_text',
-            __('View Details', 'event_espresso'),
-            self::$_event
-        );
-        $view_details_btn .= '<input id="ticket-selector-submit-'
-                             . self::$_event->ID()
-                             . '-btn" class="ticket-selector-submit-btn view-details-btn" type="submit" value="'
-                             . $btn_text
-                             . '" />';
-        $view_details_btn .= apply_filters('FHEE__EE_Ticket_Selector__after_view_details_btn', '', self::$_event);
-        if ($DWMTS) {
-            $view_details_btn .= \EED_Ticket_Selector::ticket_selector_form_close();
-            $view_details_btn .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
-            $view_details_btn .= '<br/>';
-        } else {
-            $view_details_btn .= \EED_Ticket_Selector::clear_tkt_slctr();
-            $view_details_btn .= '<br/>';
-            $view_details_btn .= \EED_Ticket_Selector::ticket_selector_form_close();
-        }
-        return $view_details_btn;
-    }
-
-
-
-    /**
-     *    cancel_ticket_selections
-     *
-     * @access        public
-     * @access        public
-     * @return        string
-     */
-    public static function cancel_ticket_selections()
-    {
-        // check nonce
-        if ( ! EED_Ticket_Selector::process_ticket_selector_nonce('cancel_ticket_selections')) {
-            return false;
-        }
-        EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-        if (EE_Registry::instance()->REQ->is_set('event_id')) {
-            wp_safe_redirect(
-                EEH_Event_View::event_link_url(
-                    EE_Registry::instance()->REQ->get('event_id')
-                )
-            );
-        } else {
-            wp_safe_redirect(
-                site_url('/' . EE_Registry::instance()->CFG->core->event_cpt_slug . '/')
-            );
-        }
-        die();
-    }
-
-
-
-    /**
-     *    process_ticket_selector_nonce
-     *
-     * @access public
-     * @param  string $nonce_name
-     * @param string  $id
-     * @return bool
-     */
-    public static function process_ticket_selector_nonce($nonce_name, $id = '')
-    {
-        $nonce_name_with_id = ! empty($id) ? "{$nonce_name}_nonce_{$id}" : "{$nonce_name}_nonce";
-        if (
-            ! is_admin()
-            && (
-                ! EE_Registry::instance()->REQ->is_set($nonce_name_with_id)
-                || ! wp_verify_nonce(
-                    EE_Registry::instance()->REQ->get($nonce_name_with_id),
-                    $nonce_name
-                )
-            )
-        ) {
-            EE_Error::add_error(
-                sprintf(
-                    __(
-                        'We\'re sorry but your request failed to pass a security check.%sPlease click the back button on your browser and try again.',
-                        'event_espresso'
-                    ),
-                    '<br/>'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        return true;
-    }
-
-
-
-    /**
-     *    process_ticket_selections
-     *
-     * @access public
-     * @return array|boolean
-     * @throws \EE_Error
-     */
-    public function process_ticket_selections()
-    {
-        do_action('EED_Ticket_Selector__process_ticket_selections__before');
-        // do we have an event id?
-        if ( ! EE_Registry::instance()->REQ->is_set('tkt-slctr-event-id')) {
-            // $_POST['tkt-slctr-event-id'] was not set ?!?!?!?
-            EE_Error::add_error(
-                sprintf(
-                    __(
-                        'An event id was not provided or was not received.%sPlease click the back button on your browser and try again.',
-                        'event_espresso'
-                    ),
-                    '<br/>'
-                ),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-        }
-        //if event id is valid
-        $id = absint(EE_Registry::instance()->REQ->get('tkt-slctr-event-id'));
-        // check nonce
-        if ( ! EED_Ticket_Selector::process_ticket_selector_nonce('process_ticket_selections', $id)) {
-            return false;
-        }
-        //		d( EE_Registry::instance()->REQ );
-        self::$_available_spaces = array(
-            'tickets'   => array(),
-            'datetimes' => array(),
-        );
-        //we should really only have 1 registration in the works now (ie, no MER) so clear any previous items in the cart.
-        // When MER happens this will probably need to be tweaked, possibly wrapped in a conditional checking for some constant defined in MER etc.
-        EE_Registry::instance()->load_core('Session');
-        // unless otherwise requested, clear the session
-        if (apply_filters('FHEE__EE_Ticket_Selector__process_ticket_selections__clear_session', true)) {
-            EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
-        }
-        //d( EE_Registry::instance()->SSN );
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        // validate/sanitize data
-        $valid = self::_validate_post_data($id);
-        //EEH_Debug_Tools::printr( $_REQUEST, '$_REQUEST', __FILE__, __LINE__ );
-        //EEH_Debug_Tools::printr( $valid, '$valid', __FILE__, __LINE__ );
-        //EEH_Debug_Tools::printr( $valid[ 'total_tickets' ], 'total_tickets', __FILE__, __LINE__ );
-        //EEH_Debug_Tools::printr( $valid[ 'max_atndz' ], 'max_atndz', __FILE__, __LINE__ );
-        //check total tickets ordered vs max number of attendees that can register
-        if ($valid['total_tickets'] > $valid['max_atndz']) {
-            // ordering too many tickets !!!
-            $total_tickets_string = _n('You have attempted to purchase %s ticket.',
-                'You have attempted to purchase %s tickets.', $valid['total_tickets'], 'event_espresso');
-            $limit_error_1 = sprintf($total_tickets_string, $valid['total_tickets']);
-            // dev only message
-            $max_atndz_string = _n('The registration limit for this event is %s ticket per registration, therefore the total number of tickets you may purchase at a time can not exceed %s.',
-                'The registration limit for this event is %s tickets per registration, therefore the total number of tickets you may purchase at a time can not exceed %s.',
-                $valid['max_atndz'], 'event_espresso');
-            $limit_error_2 = sprintf($max_atndz_string, $valid['max_atndz'], $valid['max_atndz']);
-            EE_Error::add_error($limit_error_1 . '<br/>' . $limit_error_2, __FILE__, __FUNCTION__, __LINE__);
-        } else {
-            // all data appears to be valid
-            $tckts_slctd = false;
-            $tickets_added = 0;
-            $valid = apply_filters('FHEE__EED_Ticket_Selector__process_ticket_selections__valid_post_data', $valid);
-            if ($valid['total_tickets'] > 0) {
-                // load cart
-                EE_Registry::instance()->load_core('Cart');
-                // cycle thru the number of data rows sent from the event listing
-                for ($x = 0; $x < $valid['rows']; $x++) {
-                    // does this row actually contain a ticket quantity?
-                    if (isset($valid['qty'][$x]) && $valid['qty'][$x] > 0) {
-                        // YES we have a ticket quantity
-                        $tckts_slctd = true;
-                        //						d( $valid['ticket_obj'][$x] );
-                        if ($valid['ticket_obj'][$x] instanceof EE_Ticket) {
-                            // then add ticket to cart
-                            $tickets_added += self::_add_ticket_to_cart($valid['ticket_obj'][$x], $valid['qty'][$x]);
-                            if (EE_Error::has_error()) {
-                                break;
-                            }
-                        } else {
-                            // nothing added to cart retrieved
-                            EE_Error::add_error(
-                                sprintf(__('A valid ticket could not be retrieved for the event.%sPlease click the back button on your browser and try again.',
-                                    'event_espresso'), '<br/>'),
-                                __FILE__, __FUNCTION__, __LINE__
-                            );
-                        }
-                    }
-                }
-            }
-            do_action(
-                'AHEE__EE_Ticket_Selector__process_ticket_selections__after_tickets_added_to_cart',
-                EE_Registry::instance()->CART,
-                $this
-            );
-            //d( EE_Registry::instance()->CART );
-            //die(); // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< KILL REDIRECT HERE BEFORE CART UPDATE
-            if (apply_filters('FHEE__EED_Ticket_Selector__process_ticket_selections__tckts_slctd', $tckts_slctd)) {
-                if (apply_filters('FHEE__EED_Ticket_Selector__process_ticket_selections__success', $tickets_added)) {
-                    do_action(
-                        'FHEE__EE_Ticket_Selector__process_ticket_selections__before_redirecting_to_checkout',
-                        EE_Registry::instance()->CART,
-                        $this
-                    );
-                    EE_Registry::instance()->CART->recalculate_all_cart_totals();
-                    EE_Registry::instance()->CART->save_cart(false);
-                    // exit('KILL REDIRECT AFTER CART UPDATE'); // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< OR HERE TO KILL REDIRECT AFTER CART UPDATE
-                    // just return TRUE for registrations being made from admin
-                    if (is_admin()) {
-                        return true;
-                    }
-                    EE_Error::get_notices(false, true);
-                    wp_safe_redirect(
-                        apply_filters(
-                            'FHEE__EE_Ticket_Selector__process_ticket_selections__success_redirect_url',
-                            EE_Registry::instance()->CFG->core->reg_page_url()
-                        )
-                    );
-                    exit();
-                } else {
-                    if ( ! EE_Error::has_error() && ! EE_Error::has_error(true, 'attention')) {
-                        // nothing added to cart
-                        EE_Error::add_attention(__('No tickets were added for the event', 'event_espresso'), __FILE__,
-                            __FUNCTION__, __LINE__);
-                    }
-                }
-            } else {
-                // no ticket quantities were selected
-                EE_Error::add_error(__('You need to select a ticket quantity before you can proceed.',
-                    'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
-            }
-        }
-        //die(); // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< KILL BEFORE REDIRECT
-        // at this point, just return if registration is being made from admin
-        if (is_admin()) {
-            return false;
-        }
-        if ($valid['return_url']) {
-            EE_Error::get_notices(false, true);
-            wp_safe_redirect($valid['return_url']);
-            exit();
-        } elseif (isset($event_to_add['id'])) {
-            EE_Error::get_notices(false, true);
-            wp_safe_redirect(get_permalink($event_to_add['id']));
-            exit();
-        } else {
-            echo EE_Error::get_notices();
-        }
-        return false;
-    }
-
-
-
-    /**
-     *    validate_post_data
-     *
-     * @access        private
-     * @param int $id
-     * @return array|FALSE
-     */
-    private static function _validate_post_data($id = 0)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        if ( ! $id) {
-            EE_Error::add_error(
-                __('The event id provided was not valid.', 'event_espresso'),
-                __FILE__,
-                __FUNCTION__,
-                __LINE__
-            );
-            return false;
-        }
-        // start with an empty array()
-        $valid_data = array();
-        // grab valid id
-        $valid_data['id'] = $id;
-        // grab and sanitize return-url
-        $valid_data['return_url'] = esc_url_raw(EE_Registry::instance()->REQ->get('tkt-slctr-return-url-' . $id));
-        // array of other form names
-        $inputs_to_clean = array(
-            'event_id'   => 'tkt-slctr-event-id',
-            'max_atndz'  => 'tkt-slctr-max-atndz-',
-            'rows'       => 'tkt-slctr-rows-',
-            'qty'        => 'tkt-slctr-qty-',
-            'ticket_id'  => 'tkt-slctr-ticket-id-',
-            'return_url' => 'tkt-slctr-return-url-',
-        );
-        // let's track the total number of tickets ordered.'
-        $valid_data['total_tickets'] = 0;
-        // cycle through $inputs_to_clean array
-        foreach ($inputs_to_clean as $what => $input_to_clean) {
-            // check for POST data
-            if (EE_Registry::instance()->REQ->is_set($input_to_clean . $id)) {
-                // grab value
-                $input_value = EE_Registry::instance()->REQ->get($input_to_clean . $id);
-                switch ($what) {
-                    // integers
-                    case 'event_id':
-                        $valid_data[$what] = absint($input_value);
-                        // get event via the event id we put in the form
-                        $valid_data['event'] = EE_Registry::instance()
-                                                          ->load_model('Event')
-                                                          ->get_one_by_ID($valid_data['event_id']);
-                        break;
-                    case 'rows':
-                    case 'max_atndz':
-                        $valid_data[$what] = absint($input_value);
-                        break;
-                    // arrays of integers
-                    case 'qty':
-                        /** @var array $row_qty */
-                        $row_qty = $input_value;
-                        // if qty is coming from a radio button input, then we need to assemble an array of rows
-                        if ( ! is_array($row_qty)) {
-                            // get number of rows
-                            $rows = EE_Registry::instance()->REQ->is_set('tkt-slctr-rows-' . $id)
-                                ? absint(EE_Registry::instance()->REQ->get('tkt-slctr-rows-' . $id))
-                                : 1;
-                            // explode ints by the dash
-                            $row_qty = explode('-', $row_qty);
-                            $row = isset($row_qty[0]) ? absint($row_qty[0]) : 1;
-                            $qty = isset($row_qty[1]) ? absint($row_qty[1]) : 0;
-                            $row_qty = array($row => $qty);
-                            //								 d( $row_qty );
-                            for ($x = 1; $x <= $rows; $x++) {
-                                if ( ! isset($row_qty[$x])) {
-                                    $row_qty[$x] = 0;
-                                }
-                            }
-                        }
-                        ksort($row_qty);
-                        //							 d( $row_qty );
-                        // cycle thru values
-                        foreach ($row_qty as $qty) {
-                            $qty = absint($qty);
-                            // sanitize as integers
-                            $valid_data[$what][] = $qty;
-                            $valid_data['total_tickets'] += $qty;
-                        }
-                        break;
-                    // array of integers
-                    case 'ticket_id':
-                        $value_array = array();
-                        // cycle thru values
-                        foreach ((array)$input_value as $key => $value) {
-                            // allow only numbers, letters,  spaces, commas and dashes
-                            $value_array[$key] = wp_strip_all_tags($value);
-                            // get ticket via the ticket id we put in the form
-                            $ticket_obj = EE_Registry::instance()->load_model('Ticket')->get_one_by_ID($value);
-                            $valid_data['ticket_obj'][$key] = $ticket_obj;
-                        }
-                        $valid_data[$what] = $value_array;
-                        break;
-                    case 'return_url' :
-                        // grab and sanitize return-url
-                        $valid_data[$what] = esc_url_raw($input_value);
-                        break;
-                }    // end switch $what
-            }
-        }    // end foreach $inputs_to_clean
-        //		d( $valid_data );
-        //		die();
-        return $valid_data;
-    }
-
-
-
-    /**
-     *    adds a ticket to the cart
-     *
-     * @access   private
-     * @param EE_Ticket $ticket
-     * @param int       $qty
-     * @return TRUE on success, FALSE on fail
-     * @throws \EE_Error
-     */
-    private static function _add_ticket_to_cart(EE_Ticket $ticket = null, $qty = 1)
-    {
-        do_action('AHEE_log', __FILE__, __FUNCTION__, '');
-        // get the number of spaces left for this datetime ticket
-        $available_spaces = self::_ticket_datetime_availability($ticket);
-        // compare available spaces against the number of tickets being purchased
-        if ($available_spaces >= $qty) {
-            // allow addons to prevent a ticket from being added to cart
-            if ( ! apply_filters('FHEE__EE_Ticket_Selector___add_ticket_to_cart__allow_add_to_cart', true, $ticket,
-                $qty, $available_spaces)
-            ) {
-                return false;
-            }
-            $qty = absint(apply_filters('FHEE__EE_Ticket_Selector___add_ticket_to_cart__ticket_qty', $qty, $ticket));
-            // add event to cart
-            if (EE_Registry::instance()->CART->add_ticket_to_cart($ticket, $qty)) {
-                self::_recalculate_ticket_datetime_availability($ticket, $qty);
-                return true;
-            } else {
-                return false;
-            }
-        } else {
-            // tickets can not be purchased but let's find the exact number left for the last ticket selected PRIOR to subtracting tickets
-            $available_spaces = self::_ticket_datetime_availability($ticket, true);
-            // greedy greedy greedy eh?
-            if ($available_spaces > 0) {
-                if (
-                apply_filters(
-                    'FHEE__EE_Ticket_Selector___add_ticket_to_cart__allow_display_availability_error',
-                    true,
-                    $ticket,
-                    $qty,
-                    $available_spaces
-                )
-                ) {
-                    EED_Ticket_Selector::_display_availability_error($available_spaces);
-                }
-            } else {
-                EE_Error::add_error(
-                    __('We\'re sorry, but there are no available spaces left for this event at this particular date and time.',
-                        'event_espresso'),
-                    __FILE__, __FUNCTION__, __LINE__
-                );
-            }
-            return false;
-        }
-    }
-
-
-
-    /**
-     *  _display_availability_error
-     *
-     * @access    private
-     * @param int $available_spaces
-     * @throws \EE_Error
-     */
-    private static function _display_availability_error($available_spaces = 1)
-    {
-        // add error messaging - we're using the _n function that will generate
-        // the appropriate singular or plural message based on the number of $available_spaces
-        if (EE_Registry::instance()->CART->all_ticket_quantity_count()) {
-            $msg = sprintf(
-                _n(
-                    'We\'re sorry, but there is only %1$s available space left for this event at this particular date and time. Please select a different number (or different combination) of tickets by cancelling the current selection and choosing again, or proceed to registration.',
-                    'We\'re sorry, but there are only %1$s available spaces left for this event at this particular date and time. Please select a different number (or different combination) of tickets by cancelling the current selection and choosing again, or proceed to registration.',
-                    $available_spaces,
-                    'event_espresso'
-                ),
-                $available_spaces,
-                '<br />'
-            );
-        } else {
-            $msg = sprintf(
-                _n(
-                    'We\'re sorry, but there is only %1$s available space left for this event at this particular date and time. Please select a different number (or different combination) of tickets.',
-                    'We\'re sorry, but there are only %1$s available spaces left for this event at this particular date and time. Please select a different number (or different combination) of tickets.',
-                    $available_spaces,
-                    'event_espresso'
-                ),
-                $available_spaces,
-                '<br />'
-            );
-        }
-        EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
-    }
-
-
-
-    /**
-     * _ticket_datetime_availability
-     * creates an array of tickets plus all of the datetimes available to each ticket
-     * and tracks the spaces remaining for each of those datetimes
-     *
-     * @access private
-     * @param EE_Ticket $ticket - selected ticket
-     * @param bool      $get_original_ticket_spaces
-     * @return int
-     * @throws \EE_Error
-     */
-    private static function _ticket_datetime_availability(EE_Ticket $ticket, $get_original_ticket_spaces = false)
-    {
-        // if the $_available_spaces array has not been set up yet...
-        if ( ! isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
-            self::_set_initial_ticket_datetime_availability($ticket);
-        }
-        $available_spaces = $ticket->qty() - $ticket->sold();
-        if (isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
-            // loop thru tickets, which will ALSO include individual ticket records AND a total
-            foreach ((array)self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
-                // if we want the original datetime availability BEFORE we started subtracting tickets ?
-                if ($get_original_ticket_spaces) {
-                    // then grab the available spaces from the "tickets" array and compare with the above to get the lowest number
-                    $available_spaces = min($available_spaces,
-                        self::$_available_spaces['tickets'][$ticket->ID()][$DTD_ID]);
-                } else {
-                    // we want the updated ticket availability as stored in the "datetimes" array
-                    $available_spaces = min($available_spaces, self::$_available_spaces['datetimes'][$DTD_ID]);
-                }
-            }
-        }
-        return $available_spaces;
-    }
-
-
-
-    /**
-     * _set_initial_ticket_datetime_availability
-     *
-     * @access private
-     * @param EE_Ticket $ticket
-     * @return void
-     * @throws \EE_Error
-     */
-    private static function _set_initial_ticket_datetime_availability(EE_Ticket $ticket)
-    {
-        // first, get all of the datetimes that are available to this ticket
-        $datetimes = $ticket->get_many_related(
-            'Datetime',
-            array(
-                array(
-                    'DTT_EVT_end' => array(
-                        '>=',
-                        EEM_Datetime::instance()->current_time_for_query('DTT_EVT_end'),
-                    ),
-                ),
-                'order_by' => array('DTT_EVT_start' => 'ASC'),
-            )
-        );
-        if ( ! empty($datetimes)) {
-            // now loop thru all of the datetimes
-            foreach ($datetimes as $datetime) {
-                if ($datetime instanceof EE_Datetime) {
-                    // the number of spaces available for the datetime without considering individual ticket quantities
-                    $spaces_remaining = $datetime->spaces_remaining();
-                    // save the total available spaces ( the lesser of the ticket qty minus the number of tickets sold or the datetime spaces remaining) to this ticket using the datetime ID as the key
-                    self::$_available_spaces['tickets'][$ticket->ID()][$datetime->ID()] = min(
-                        $ticket->qty() - $ticket->sold(),
-                        $spaces_remaining
-                    );
-                    // if the remaining spaces for this datetime is already set, then compare that against the datetime spaces remaining, and take the lowest number,
-                    // else just take the datetime spaces remaining, and assign to the datetimes array
-                    self::$_available_spaces['datetimes'][$datetime->ID()] = isset(self::$_available_spaces['datetimes'][$datetime->ID()])
-                        ? min(self::$_available_spaces['datetimes'][$datetime->ID()], $spaces_remaining)
-                        : $spaces_remaining;
-                }
-            }
-        }
-    }
-
-
-
-    /**
-     *    _recalculate_ticket_datetime_availability
-     *
-     * @access    private
-     * @param    EE_Ticket $ticket
-     * @param    int       $qty
-     * @return    void
-     */
-    private static function _recalculate_ticket_datetime_availability(EE_Ticket $ticket, $qty = 0)
-    {
-        if (isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
-            // loop thru tickets, which will ALSO include individual ticket records AND a total
-            foreach ((array)self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
-                // subtract the qty of selected tickets from each datetime's available spaces this ticket has access to,
-                self::$_available_spaces['datetimes'][$DTD_ID] -= $qty;
-            }
-        }
-    }
-
-
-
-    /**
-     *    load js
-     *
-     * @access        public
-     * @return        void
-     */
-    public static function load_tckt_slctr_assets()
-    {
-        // add some style
-        if (apply_filters('FHEE__EED_Ticket_Selector__load_tckt_slctr_assets', false)) {
-            wp_register_style('ticket_selector', TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.css');
-            wp_enqueue_style('ticket_selector');
-            // make it dance
-            // wp_register_script('ticket_selector', TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.js', array('espresso_core'), '', TRUE);
-            // wp_enqueue_script('ticket_selector');
-        }
-    }
-
-
-
-    public static function load_tckt_slctr_assets_admin()
-    {
-        //iframe button js on admin event editor page
-        if (EE_Registry::instance()->REQ->get('page') === 'espresso_events'
-            && EE_Registry::instance()->REQ->get('action') === 'edit'
-        ) {
-            wp_register_script('ticket_selector_embed', TICKET_SELECTOR_ASSETS_URL . 'ticket-selector-embed.js',
-                array('ee-dialog'), EVENT_ESPRESSO_VERSION, true);
-            wp_enqueue_script('ticket_selector_embed');
-        }
-    }
+			}
+			return $html;
+		}
+		// if there is no submit button, then don't start building a form
+		// because the "View Details" button will build its own form
+		if ( ! apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', false)) {
+			return '';
+		}
+		$checkout_url = EEH_Event_View::event_link_url($ID);
+		if ( ! $checkout_url) {
+			EE_Error::add_error(__('The URL for the Event Details page could not be retrieved.', 'event_espresso'),
+				__FILE__, __FUNCTION__, __LINE__);
+		}
+		$extra_params = self::$_in_iframe ? ' target="_blank"' : '';
+		$html = '<form method="POST" action="' . $checkout_url . '"' . $extra_params . '>';
+		$html .= wp_nonce_field('process_ticket_selections', 'process_ticket_selections_nonce_' . $ID, true, false);
+		$html .= '<input type="hidden" name="ee" value="process_ticket_selections">';
+		$html = apply_filters('FHEE__EE_Ticket_Selector__ticket_selector_form_open__html', $html, self::$_event);
+		return $html;
+	}
+
+
+
+	/**
+	 *    display_ticket_selector_submit
+	 *
+	 * @access        public
+	 * @access        public
+	 * @return        string
+	 * @throws \EE_Error
+	 */
+	public static function display_ticket_selector_submit()
+	{
+		$html = '';
+		if ( ! is_admin()) {
+			// standard TS displayed with submit button, ie: "Register Now"
+			if (apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector_submit', false)) {
+				$html .= \EED_Ticket_Selector::display_register_now_button();
+				$html .= empty($external_url) ?
+					\EED_Ticket_Selector::no_tkt_slctr_end_dv()
+					: \EED_Ticket_Selector::clear_tkt_slctr();
+				$html .= '<br/>' . \EED_Ticket_Selector::ticket_selector_form_close();
+			} else if ( EED_Ticket_Selector::$_max_atndz === 1 ) {
+				// its a "Dude Where's my Ticket Selector?" (DWMTS) type event (ie: $_max_atndz === 1)
+				if ( EED_Ticket_Selector::$_event->is_sold_out() ) {
+					// then instead of a View Details or Submit button, just display a "Sold Out" message
+					$html .= apply_filters(
+						'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__sold_out_msg',
+						sprintf(
+							__(
+								'%1$s"%2$s" is currently sold out.%4$sPlease check back again later, as spots may become available.%3$s',
+								'event_espresso'
+							),
+							'<p class="no-ticket-selector-msg clear-float">',
+							EED_Ticket_Selector::$_event->name(),
+							'</p>',
+							'<br />'
+						),
+						EED_Ticket_Selector::$_event
+					);
+					if (
+						apply_filters(
+							'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__no_tickets_but_display_register_now_button',
+							false,
+							EED_Ticket_Selector::$_event
+						)
+					) {
+						$html .= \EED_Ticket_Selector::display_register_now_button();
+					}
+					// sold out DWMTS event, no TS, no submit or view details button, but has additional content
+					$html .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
+				} else if (
+					apply_filters('FHEE__EE_Ticket_Selector__hide_ticket_selector', false)
+					&& ! is_single()
+				) {
+					// this is a "Dude Where's my Ticket Selector?" (DWMTS) type event,
+					// but no tickets are available, so display event's "View Details" button.
+					// it is being viewed via somewhere other than a single post
+					$html .= EED_Ticket_Selector::display_view_details_btn(true);
+				}
+			} else if (is_archive()) {
+				// event list, no tickets available so display event's "View Details" button
+				$html .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
+				$html .= EED_Ticket_Selector::display_view_details_btn();
+			} else {
+				if (
+					apply_filters(
+						'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__no_tickets_but_display_register_now_button',
+						false,
+						EED_Ticket_Selector::$_event
+					)
+				) {
+					$html .= \EED_Ticket_Selector::display_register_now_button();
+				}
+				// no submit or view details button, and no additional content
+				$html .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
+			}
+			if ( ! is_archive()) {
+				$html .= \EEH_Template::powered_by_event_espresso('', '', array('utm_content' => 'ticket_selector'));
+			}
+		}
+		return $html;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public static function clear_tkt_slctr()
+	{
+		// standard TS displayed, appears after a "Register Now" or "view Details" button
+		return '<div class="clear"></div>';
+	}
+
+
+
+	/**
+	 * @deprecated 4.9.13
+	 * @return string
+	 */
+	public static function tkt_slctr_end_dv()
+	{
+		return \EED_Ticket_Selector::clear_tkt_slctr();
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public static function no_tkt_slctr_end_dv()
+	{
+		// DWMTS event, no TS, appears after a "Register Now" or "view Details" button
+		return '<div class="clear"></div></div>';
+	}
+
+
+
+	/**
+	 *    ticket_selector_form_close
+	 *
+	 * @access        public
+	 * @access        public
+	 * @return        string
+	 */
+	public static function ticket_selector_form_close()
+	{
+		return '</form>';
+	}
+
+
+
+	/**
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public static function display_register_now_button()
+	{
+		$btn_text = apply_filters(
+			'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__btn_text',
+			__('Register Now', 'event_espresso'),
+			EED_Ticket_Selector::$_event
+		);
+		$external_url = EED_Ticket_Selector::$_event->external_url();
+		$html = '<input id="ticket-selector-submit-' . EED_Ticket_Selector::$_event->ID() . '-btn"';
+		$html .= ' class="ticket-selector-submit-btn ';
+		$html .= empty($external_url) ? 'ticket-selector-submit-ajax"' : '"';
+		$html .= ' type="submit" value="' . $btn_text . '" />';
+		$html .= apply_filters(
+			'FHEE__EE_Ticket_Selector__after_ticket_selector_submit',
+			'',
+			EED_Ticket_Selector::$_event
+		);
+		return $html;
+	}
+
+
+	/**
+	 * display_view_details_btn
+	 *
+	 * @access public
+	 * @param bool $DWMTS indicates a "Dude Where's my Ticket Selector?" (DWMTS) type event
+	 *                    (ie: $_max_atndz === 1) where there are no available tickets,
+	 *                    either because they are sold out, expired, or not yet on sale.
+	 *                    In this case, we need to close the form BEFORE adding any closing divs
+	 * @return string
+	 * @throws \EE_Error
+	 */
+	public static function display_view_details_btn($DWMTS = false)
+	{
+		if ( ! self::$_event->get_permalink()) {
+			EE_Error::add_error(
+				__('The URL for the Event Details page could not be retrieved.', 'event_espresso'),
+				__FILE__, __FUNCTION__, __LINE__
+			);
+		}
+		$view_details_btn = '<form method="POST" action="';
+		$view_details_btn .= apply_filters(
+			'FHEE__EE_Ticket_Selector__display_view_details_btn__btn_url',
+			self::$_event->get_permalink(),
+			self::$_event
+		);
+		$view_details_btn .= '">';
+		$btn_text = apply_filters(
+			'FHEE__EE_Ticket_Selector__display_view_details_btn__btn_text',
+			__('View Details', 'event_espresso'),
+			self::$_event
+		);
+		$view_details_btn .= '<input id="ticket-selector-submit-'
+							 . self::$_event->ID()
+							 . '-btn" class="ticket-selector-submit-btn view-details-btn" type="submit" value="'
+							 . $btn_text
+							 . '" />';
+		$view_details_btn .= apply_filters('FHEE__EE_Ticket_Selector__after_view_details_btn', '', self::$_event);
+		if ($DWMTS) {
+			$view_details_btn .= \EED_Ticket_Selector::ticket_selector_form_close();
+			$view_details_btn .= \EED_Ticket_Selector::no_tkt_slctr_end_dv();
+			$view_details_btn .= '<br/>';
+		} else {
+			$view_details_btn .= \EED_Ticket_Selector::clear_tkt_slctr();
+			$view_details_btn .= '<br/>';
+			$view_details_btn .= \EED_Ticket_Selector::ticket_selector_form_close();
+		}
+		return $view_details_btn;
+	}
+
+
+
+	/**
+	 *    cancel_ticket_selections
+	 *
+	 * @access        public
+	 * @access        public
+	 * @return        string
+	 */
+	public static function cancel_ticket_selections()
+	{
+		// check nonce
+		if ( ! EED_Ticket_Selector::process_ticket_selector_nonce('cancel_ticket_selections')) {
+			return false;
+		}
+		EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+		if (EE_Registry::instance()->REQ->is_set('event_id')) {
+			wp_safe_redirect(
+				EEH_Event_View::event_link_url(
+					EE_Registry::instance()->REQ->get('event_id')
+				)
+			);
+		} else {
+			wp_safe_redirect(
+				site_url('/' . EE_Registry::instance()->CFG->core->event_cpt_slug . '/')
+			);
+		}
+		die();
+	}
+
+
+
+	/**
+	 *    process_ticket_selector_nonce
+	 *
+	 * @access public
+	 * @param  string $nonce_name
+	 * @param string  $id
+	 * @return bool
+	 */
+	public static function process_ticket_selector_nonce($nonce_name, $id = '')
+	{
+		$nonce_name_with_id = ! empty($id) ? "{$nonce_name}_nonce_{$id}" : "{$nonce_name}_nonce";
+		if (
+			! is_admin()
+			&& (
+				! EE_Registry::instance()->REQ->is_set($nonce_name_with_id)
+				|| ! wp_verify_nonce(
+					EE_Registry::instance()->REQ->get($nonce_name_with_id),
+					$nonce_name
+				)
+			)
+		) {
+			EE_Error::add_error(
+				sprintf(
+					__(
+						'We\'re sorry but your request failed to pass a security check.%sPlease click the back button on your browser and try again.',
+						'event_espresso'
+					),
+					'<br/>'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		return true;
+	}
+
+
+
+	/**
+	 *    process_ticket_selections
+	 *
+	 * @access public
+	 * @return array|boolean
+	 * @throws \EE_Error
+	 */
+	public function process_ticket_selections()
+	{
+		do_action('EED_Ticket_Selector__process_ticket_selections__before');
+		// do we have an event id?
+		if ( ! EE_Registry::instance()->REQ->is_set('tkt-slctr-event-id')) {
+			// $_POST['tkt-slctr-event-id'] was not set ?!?!?!?
+			EE_Error::add_error(
+				sprintf(
+					__(
+						'An event id was not provided or was not received.%sPlease click the back button on your browser and try again.',
+						'event_espresso'
+					),
+					'<br/>'
+				),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+		}
+		//if event id is valid
+		$id = absint(EE_Registry::instance()->REQ->get('tkt-slctr-event-id'));
+		// check nonce
+		if ( ! EED_Ticket_Selector::process_ticket_selector_nonce('process_ticket_selections', $id)) {
+			return false;
+		}
+		//		d( EE_Registry::instance()->REQ );
+		self::$_available_spaces = array(
+			'tickets'   => array(),
+			'datetimes' => array(),
+		);
+		//we should really only have 1 registration in the works now (ie, no MER) so clear any previous items in the cart.
+		// When MER happens this will probably need to be tweaked, possibly wrapped in a conditional checking for some constant defined in MER etc.
+		EE_Registry::instance()->load_core('Session');
+		// unless otherwise requested, clear the session
+		if (apply_filters('FHEE__EE_Ticket_Selector__process_ticket_selections__clear_session', true)) {
+			EE_Registry::instance()->SSN->clear_session(__CLASS__, __FUNCTION__);
+		}
+		//d( EE_Registry::instance()->SSN );
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		// validate/sanitize data
+		$valid = self::_validate_post_data($id);
+		//EEH_Debug_Tools::printr( $_REQUEST, '$_REQUEST', __FILE__, __LINE__ );
+		//EEH_Debug_Tools::printr( $valid, '$valid', __FILE__, __LINE__ );
+		//EEH_Debug_Tools::printr( $valid[ 'total_tickets' ], 'total_tickets', __FILE__, __LINE__ );
+		//EEH_Debug_Tools::printr( $valid[ 'max_atndz' ], 'max_atndz', __FILE__, __LINE__ );
+		//check total tickets ordered vs max number of attendees that can register
+		if ($valid['total_tickets'] > $valid['max_atndz']) {
+			// ordering too many tickets !!!
+			$total_tickets_string = _n('You have attempted to purchase %s ticket.',
+				'You have attempted to purchase %s tickets.', $valid['total_tickets'], 'event_espresso');
+			$limit_error_1 = sprintf($total_tickets_string, $valid['total_tickets']);
+			// dev only message
+			$max_atndz_string = _n('The registration limit for this event is %s ticket per registration, therefore the total number of tickets you may purchase at a time can not exceed %s.',
+				'The registration limit for this event is %s tickets per registration, therefore the total number of tickets you may purchase at a time can not exceed %s.',
+				$valid['max_atndz'], 'event_espresso');
+			$limit_error_2 = sprintf($max_atndz_string, $valid['max_atndz'], $valid['max_atndz']);
+			EE_Error::add_error($limit_error_1 . '<br/>' . $limit_error_2, __FILE__, __FUNCTION__, __LINE__);
+		} else {
+			// all data appears to be valid
+			$tckts_slctd = false;
+			$tickets_added = 0;
+			$valid = apply_filters('FHEE__EED_Ticket_Selector__process_ticket_selections__valid_post_data', $valid);
+			if ($valid['total_tickets'] > 0) {
+				// load cart
+				EE_Registry::instance()->load_core('Cart');
+				// cycle thru the number of data rows sent from the event listing
+				for ($x = 0; $x < $valid['rows']; $x++) {
+					// does this row actually contain a ticket quantity?
+					if (isset($valid['qty'][$x]) && $valid['qty'][$x] > 0) {
+						// YES we have a ticket quantity
+						$tckts_slctd = true;
+						//						d( $valid['ticket_obj'][$x] );
+						if ($valid['ticket_obj'][$x] instanceof EE_Ticket) {
+							// then add ticket to cart
+							$tickets_added += self::_add_ticket_to_cart($valid['ticket_obj'][$x], $valid['qty'][$x]);
+							if (EE_Error::has_error()) {
+								break;
+							}
+						} else {
+							// nothing added to cart retrieved
+							EE_Error::add_error(
+								sprintf(__('A valid ticket could not be retrieved for the event.%sPlease click the back button on your browser and try again.',
+									'event_espresso'), '<br/>'),
+								__FILE__, __FUNCTION__, __LINE__
+							);
+						}
+					}
+				}
+			}
+			do_action(
+				'AHEE__EE_Ticket_Selector__process_ticket_selections__after_tickets_added_to_cart',
+				EE_Registry::instance()->CART,
+				$this
+			);
+			//d( EE_Registry::instance()->CART );
+			//die(); // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< KILL REDIRECT HERE BEFORE CART UPDATE
+			if (apply_filters('FHEE__EED_Ticket_Selector__process_ticket_selections__tckts_slctd', $tckts_slctd)) {
+				if (apply_filters('FHEE__EED_Ticket_Selector__process_ticket_selections__success', $tickets_added)) {
+					do_action(
+						'FHEE__EE_Ticket_Selector__process_ticket_selections__before_redirecting_to_checkout',
+						EE_Registry::instance()->CART,
+						$this
+					);
+					EE_Registry::instance()->CART->recalculate_all_cart_totals();
+					EE_Registry::instance()->CART->save_cart(false);
+					// exit('KILL REDIRECT AFTER CART UPDATE'); // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< OR HERE TO KILL REDIRECT AFTER CART UPDATE
+					// just return TRUE for registrations being made from admin
+					if (is_admin()) {
+						return true;
+					}
+					EE_Error::get_notices(false, true);
+					wp_safe_redirect(
+						apply_filters(
+							'FHEE__EE_Ticket_Selector__process_ticket_selections__success_redirect_url',
+							EE_Registry::instance()->CFG->core->reg_page_url()
+						)
+					);
+					exit();
+				} else {
+					if ( ! EE_Error::has_error() && ! EE_Error::has_error(true, 'attention')) {
+						// nothing added to cart
+						EE_Error::add_attention(__('No tickets were added for the event', 'event_espresso'), __FILE__,
+							__FUNCTION__, __LINE__);
+					}
+				}
+			} else {
+				// no ticket quantities were selected
+				EE_Error::add_error(__('You need to select a ticket quantity before you can proceed.',
+					'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
+			}
+		}
+		//die(); // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< KILL BEFORE REDIRECT
+		// at this point, just return if registration is being made from admin
+		if (is_admin()) {
+			return false;
+		}
+		if ($valid['return_url']) {
+			EE_Error::get_notices(false, true);
+			wp_safe_redirect($valid['return_url']);
+			exit();
+		} elseif (isset($event_to_add['id'])) {
+			EE_Error::get_notices(false, true);
+			wp_safe_redirect(get_permalink($event_to_add['id']));
+			exit();
+		} else {
+			echo EE_Error::get_notices();
+		}
+		return false;
+	}
+
+
+
+	/**
+	 *    validate_post_data
+	 *
+	 * @access        private
+	 * @param int $id
+	 * @return array|FALSE
+	 */
+	private static function _validate_post_data($id = 0)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		if ( ! $id) {
+			EE_Error::add_error(
+				__('The event id provided was not valid.', 'event_espresso'),
+				__FILE__,
+				__FUNCTION__,
+				__LINE__
+			);
+			return false;
+		}
+		// start with an empty array()
+		$valid_data = array();
+		// grab valid id
+		$valid_data['id'] = $id;
+		// grab and sanitize return-url
+		$valid_data['return_url'] = esc_url_raw(EE_Registry::instance()->REQ->get('tkt-slctr-return-url-' . $id));
+		// array of other form names
+		$inputs_to_clean = array(
+			'event_id'   => 'tkt-slctr-event-id',
+			'max_atndz'  => 'tkt-slctr-max-atndz-',
+			'rows'       => 'tkt-slctr-rows-',
+			'qty'        => 'tkt-slctr-qty-',
+			'ticket_id'  => 'tkt-slctr-ticket-id-',
+			'return_url' => 'tkt-slctr-return-url-',
+		);
+		// let's track the total number of tickets ordered.'
+		$valid_data['total_tickets'] = 0;
+		// cycle through $inputs_to_clean array
+		foreach ($inputs_to_clean as $what => $input_to_clean) {
+			// check for POST data
+			if (EE_Registry::instance()->REQ->is_set($input_to_clean . $id)) {
+				// grab value
+				$input_value = EE_Registry::instance()->REQ->get($input_to_clean . $id);
+				switch ($what) {
+					// integers
+					case 'event_id':
+						$valid_data[$what] = absint($input_value);
+						// get event via the event id we put in the form
+						$valid_data['event'] = EE_Registry::instance()
+														  ->load_model('Event')
+														  ->get_one_by_ID($valid_data['event_id']);
+						break;
+					case 'rows':
+					case 'max_atndz':
+						$valid_data[$what] = absint($input_value);
+						break;
+					// arrays of integers
+					case 'qty':
+						/** @var array $row_qty */
+						$row_qty = $input_value;
+						// if qty is coming from a radio button input, then we need to assemble an array of rows
+						if ( ! is_array($row_qty)) {
+							// get number of rows
+							$rows = EE_Registry::instance()->REQ->is_set('tkt-slctr-rows-' . $id)
+								? absint(EE_Registry::instance()->REQ->get('tkt-slctr-rows-' . $id))
+								: 1;
+							// explode ints by the dash
+							$row_qty = explode('-', $row_qty);
+							$row = isset($row_qty[0]) ? absint($row_qty[0]) : 1;
+							$qty = isset($row_qty[1]) ? absint($row_qty[1]) : 0;
+							$row_qty = array($row => $qty);
+							//								 d( $row_qty );
+							for ($x = 1; $x <= $rows; $x++) {
+								if ( ! isset($row_qty[$x])) {
+									$row_qty[$x] = 0;
+								}
+							}
+						}
+						ksort($row_qty);
+						//							 d( $row_qty );
+						// cycle thru values
+						foreach ($row_qty as $qty) {
+							$qty = absint($qty);
+							// sanitize as integers
+							$valid_data[$what][] = $qty;
+							$valid_data['total_tickets'] += $qty;
+						}
+						break;
+					// array of integers
+					case 'ticket_id':
+						$value_array = array();
+						// cycle thru values
+						foreach ((array)$input_value as $key => $value) {
+							// allow only numbers, letters,  spaces, commas and dashes
+							$value_array[$key] = wp_strip_all_tags($value);
+							// get ticket via the ticket id we put in the form
+							$ticket_obj = EE_Registry::instance()->load_model('Ticket')->get_one_by_ID($value);
+							$valid_data['ticket_obj'][$key] = $ticket_obj;
+						}
+						$valid_data[$what] = $value_array;
+						break;
+					case 'return_url' :
+						// grab and sanitize return-url
+						$valid_data[$what] = esc_url_raw($input_value);
+						break;
+				}    // end switch $what
+			}
+		}    // end foreach $inputs_to_clean
+		//		d( $valid_data );
+		//		die();
+		return $valid_data;
+	}
+
+
+
+	/**
+	 *    adds a ticket to the cart
+	 *
+	 * @access   private
+	 * @param EE_Ticket $ticket
+	 * @param int       $qty
+	 * @return TRUE on success, FALSE on fail
+	 * @throws \EE_Error
+	 */
+	private static function _add_ticket_to_cart(EE_Ticket $ticket = null, $qty = 1)
+	{
+		do_action('AHEE_log', __FILE__, __FUNCTION__, '');
+		// get the number of spaces left for this datetime ticket
+		$available_spaces = self::_ticket_datetime_availability($ticket);
+		// compare available spaces against the number of tickets being purchased
+		if ($available_spaces >= $qty) {
+			// allow addons to prevent a ticket from being added to cart
+			if ( ! apply_filters('FHEE__EE_Ticket_Selector___add_ticket_to_cart__allow_add_to_cart', true, $ticket,
+				$qty, $available_spaces)
+			) {
+				return false;
+			}
+			$qty = absint(apply_filters('FHEE__EE_Ticket_Selector___add_ticket_to_cart__ticket_qty', $qty, $ticket));
+			// add event to cart
+			if (EE_Registry::instance()->CART->add_ticket_to_cart($ticket, $qty)) {
+				self::_recalculate_ticket_datetime_availability($ticket, $qty);
+				return true;
+			} else {
+				return false;
+			}
+		} else {
+			// tickets can not be purchased but let's find the exact number left for the last ticket selected PRIOR to subtracting tickets
+			$available_spaces = self::_ticket_datetime_availability($ticket, true);
+			// greedy greedy greedy eh?
+			if ($available_spaces > 0) {
+				if (
+				apply_filters(
+					'FHEE__EE_Ticket_Selector___add_ticket_to_cart__allow_display_availability_error',
+					true,
+					$ticket,
+					$qty,
+					$available_spaces
+				)
+				) {
+					EED_Ticket_Selector::_display_availability_error($available_spaces);
+				}
+			} else {
+				EE_Error::add_error(
+					__('We\'re sorry, but there are no available spaces left for this event at this particular date and time.',
+						'event_espresso'),
+					__FILE__, __FUNCTION__, __LINE__
+				);
+			}
+			return false;
+		}
+	}
+
+
+
+	/**
+	 *  _display_availability_error
+	 *
+	 * @access    private
+	 * @param int $available_spaces
+	 * @throws \EE_Error
+	 */
+	private static function _display_availability_error($available_spaces = 1)
+	{
+		// add error messaging - we're using the _n function that will generate
+		// the appropriate singular or plural message based on the number of $available_spaces
+		if (EE_Registry::instance()->CART->all_ticket_quantity_count()) {
+			$msg = sprintf(
+				_n(
+					'We\'re sorry, but there is only %1$s available space left for this event at this particular date and time. Please select a different number (or different combination) of tickets by cancelling the current selection and choosing again, or proceed to registration.',
+					'We\'re sorry, but there are only %1$s available spaces left for this event at this particular date and time. Please select a different number (or different combination) of tickets by cancelling the current selection and choosing again, or proceed to registration.',
+					$available_spaces,
+					'event_espresso'
+				),
+				$available_spaces,
+				'<br />'
+			);
+		} else {
+			$msg = sprintf(
+				_n(
+					'We\'re sorry, but there is only %1$s available space left for this event at this particular date and time. Please select a different number (or different combination) of tickets.',
+					'We\'re sorry, but there are only %1$s available spaces left for this event at this particular date and time. Please select a different number (or different combination) of tickets.',
+					$available_spaces,
+					'event_espresso'
+				),
+				$available_spaces,
+				'<br />'
+			);
+		}
+		EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__);
+	}
+
+
+
+	/**
+	 * _ticket_datetime_availability
+	 * creates an array of tickets plus all of the datetimes available to each ticket
+	 * and tracks the spaces remaining for each of those datetimes
+	 *
+	 * @access private
+	 * @param EE_Ticket $ticket - selected ticket
+	 * @param bool      $get_original_ticket_spaces
+	 * @return int
+	 * @throws \EE_Error
+	 */
+	private static function _ticket_datetime_availability(EE_Ticket $ticket, $get_original_ticket_spaces = false)
+	{
+		// if the $_available_spaces array has not been set up yet...
+		if ( ! isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
+			self::_set_initial_ticket_datetime_availability($ticket);
+		}
+		$available_spaces = $ticket->qty() - $ticket->sold();
+		if (isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
+			// loop thru tickets, which will ALSO include individual ticket records AND a total
+			foreach ((array)self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
+				// if we want the original datetime availability BEFORE we started subtracting tickets ?
+				if ($get_original_ticket_spaces) {
+					// then grab the available spaces from the "tickets" array and compare with the above to get the lowest number
+					$available_spaces = min($available_spaces,
+						self::$_available_spaces['tickets'][$ticket->ID()][$DTD_ID]);
+				} else {
+					// we want the updated ticket availability as stored in the "datetimes" array
+					$available_spaces = min($available_spaces, self::$_available_spaces['datetimes'][$DTD_ID]);
+				}
+			}
+		}
+		return $available_spaces;
+	}
+
+
+
+	/**
+	 * _set_initial_ticket_datetime_availability
+	 *
+	 * @access private
+	 * @param EE_Ticket $ticket
+	 * @return void
+	 * @throws \EE_Error
+	 */
+	private static function _set_initial_ticket_datetime_availability(EE_Ticket $ticket)
+	{
+		// first, get all of the datetimes that are available to this ticket
+		$datetimes = $ticket->get_many_related(
+			'Datetime',
+			array(
+				array(
+					'DTT_EVT_end' => array(
+						'>=',
+						EEM_Datetime::instance()->current_time_for_query('DTT_EVT_end'),
+					),
+				),
+				'order_by' => array('DTT_EVT_start' => 'ASC'),
+			)
+		);
+		if ( ! empty($datetimes)) {
+			// now loop thru all of the datetimes
+			foreach ($datetimes as $datetime) {
+				if ($datetime instanceof EE_Datetime) {
+					// the number of spaces available for the datetime without considering individual ticket quantities
+					$spaces_remaining = $datetime->spaces_remaining();
+					// save the total available spaces ( the lesser of the ticket qty minus the number of tickets sold or the datetime spaces remaining) to this ticket using the datetime ID as the key
+					self::$_available_spaces['tickets'][$ticket->ID()][$datetime->ID()] = min(
+						$ticket->qty() - $ticket->sold(),
+						$spaces_remaining
+					);
+					// if the remaining spaces for this datetime is already set, then compare that against the datetime spaces remaining, and take the lowest number,
+					// else just take the datetime spaces remaining, and assign to the datetimes array
+					self::$_available_spaces['datetimes'][$datetime->ID()] = isset(self::$_available_spaces['datetimes'][$datetime->ID()])
+						? min(self::$_available_spaces['datetimes'][$datetime->ID()], $spaces_remaining)
+						: $spaces_remaining;
+				}
+			}
+		}
+	}
+
+
+
+	/**
+	 *    _recalculate_ticket_datetime_availability
+	 *
+	 * @access    private
+	 * @param    EE_Ticket $ticket
+	 * @param    int       $qty
+	 * @return    void
+	 */
+	private static function _recalculate_ticket_datetime_availability(EE_Ticket $ticket, $qty = 0)
+	{
+		if (isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
+			// loop thru tickets, which will ALSO include individual ticket records AND a total
+			foreach ((array)self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
+				// subtract the qty of selected tickets from each datetime's available spaces this ticket has access to,
+				self::$_available_spaces['datetimes'][$DTD_ID] -= $qty;
+			}
+		}
+	}
+
+
+
+	/**
+	 *    load js
+	 *
+	 * @access        public
+	 * @return        void
+	 */
+	public static function load_tckt_slctr_assets()
+	{
+		// add some style
+		if (apply_filters('FHEE__EED_Ticket_Selector__load_tckt_slctr_assets', false)) {
+			wp_register_style('ticket_selector', TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.css');
+			wp_enqueue_style('ticket_selector');
+			// make it dance
+			// wp_register_script('ticket_selector', TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.js', array('espresso_core'), '', TRUE);
+			// wp_enqueue_script('ticket_selector');
+		}
+	}
+
+
+
+	public static function load_tckt_slctr_assets_admin()
+	{
+		//iframe button js on admin event editor page
+		if (EE_Registry::instance()->REQ->get('page') === 'espresso_events'
+			&& EE_Registry::instance()->REQ->get('action') === 'edit'
+		) {
+			wp_register_script('ticket_selector_embed', TICKET_SELECTOR_ASSETS_URL . 'ticket-selector-embed.js',
+				array('ee-dialog'), EVENT_ESPRESSO_VERSION, true);
+			wp_enqueue_script('ticket_selector_embed');
+		}
+	}
 
 
 

Spacing +44 added lines, -44 removed lines

@@ -14,7 +14,7 @@ 
 class EED_Ticket_Selector extends EED_Module
 {
 
-    const debug = false;    //	true false
+    const debug = false; //	true false
 
     /**
      * event that ticket selector is being generated for
@@ -113,8 +113,8 @@ 
      */
     public static function set_definitions()
     {
-        define('TICKET_SELECTOR_ASSETS_URL', plugin_dir_url(__FILE__) . 'assets' . DS);
-        define('TICKET_SELECTOR_TEMPLATES_PATH', str_replace('\\', DS, plugin_dir_path(__FILE__)) . 'templates' . DS);
+        define('TICKET_SELECTOR_ASSETS_URL', plugin_dir_url(__FILE__).'assets'.DS);
+        define('TICKET_SELECTOR_TEMPLATES_PATH', str_replace('\\', DS, plugin_dir_path(__FILE__)).'templates'.DS);
         //if config is not set, initialize
         //If config is not set, set it.
         if (EE_Registry::instance()->CFG->template_settings->EED_Ticket_Selector === null) {
@@ -158,10 +158,10 @@ 
         $template_args['css'] = apply_filters(
             'FHEE__EED_Ticket_Selector__ticket_selector_iframe__css',
             array(
-                TICKET_SELECTOR_ASSETS_URL . 'ticket_selector_embed.css?ver=' . EVENT_ESPRESSO_VERSION,
-                TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.css?ver=' . EVENT_ESPRESSO_VERSION,
-                includes_url('css/dashicons.min.css?ver=' . $GLOBALS['wp_version']),
-                EE_GLOBAL_ASSETS_URL . 'css/espresso_default.css?ver=' . EVENT_ESPRESSO_VERSION,
+                TICKET_SELECTOR_ASSETS_URL.'ticket_selector_embed.css?ver='.EVENT_ESPRESSO_VERSION,
+                TICKET_SELECTOR_ASSETS_URL.'ticket_selector.css?ver='.EVENT_ESPRESSO_VERSION,
+                includes_url('css/dashicons.min.css?ver='.$GLOBALS['wp_version']),
+                EE_GLOBAL_ASSETS_URL.'css/espresso_default.css?ver='.EVENT_ESPRESSO_VERSION,
             )
         );
         EE_Registry::$i18n_js_strings['ticket_selector_iframe'] = true;
@@ -174,18 +174,18 @@ 
         $template_args['js'] = apply_filters(
             'FHEE__EED_Ticket_Selector__ticket_selector_iframe__js',
             array(
-                includes_url('js/jquery/jquery.js?ver=' . $GLOBALS['wp_version']),
-                EE_GLOBAL_ASSETS_URL . 'scripts/espresso_core.js?ver=' . EVENT_ESPRESSO_VERSION,
-                TICKET_SELECTOR_ASSETS_URL . 'ticket_selector_iframe_embed.js?ver=' . EVENT_ESPRESSO_VERSION,
+                includes_url('js/jquery/jquery.js?ver='.$GLOBALS['wp_version']),
+                EE_GLOBAL_ASSETS_URL.'scripts/espresso_core.js?ver='.EVENT_ESPRESSO_VERSION,
+                TICKET_SELECTOR_ASSETS_URL.'ticket_selector_iframe_embed.js?ver='.EVENT_ESPRESSO_VERSION,
             )
         );
         $template_args['notices'] = EEH_Template::display_template(
-            EE_TEMPLATES . 'espresso-ajax-notices.template.php',
+            EE_TEMPLATES.'espresso-ajax-notices.template.php',
             array(),
             true
         );
         EEH_Template::display_template(
-            TICKET_SELECTOR_TEMPLATES_PATH . 'ticket_selector_chart_iframe.template.php',
+            TICKET_SELECTOR_TEMPLATES_PATH.'ticket_selector_chart_iframe.template.php',
             $template_args
         );
         exit;
@@ -200,7 +200,7 @@ 
      * @param int    $id               The post id for the event.
      * @return string The new html string for the permalink area.
      */
-    public static function iframe_code_button($permalink_string, $id )
+    public static function iframe_code_button($permalink_string, $id)
     {
         //make sure this is ONLY when editing and the event id has been set.
         if ( ! empty($id)) {
@@ -214,12 +214,12 @@ 
                                  . '</a> ';
             $ticket_selector_url = add_query_arg(array('ticket_selector' => 'iframe', 'event' => $id), site_url());
             $iframe_string = esc_html(
-                '<iframe src="' . $ticket_selector_url . '" width="100%" height="100%"></iframe>'
+                '<iframe src="'.$ticket_selector_url.'" width="100%" height="100%"></iframe>'
             );
             $permalink_string .= '
 <div id="js-ts-iframe" style="display:none">
 	<div style="width:100%; height: 500px;">
-		' . $iframe_string . '
+		' . $iframe_string.'
 	</div>
 </div>';
         }
@@ -243,10 +243,10 @@ 
         }
         if ($event instanceof EE_Event) {
             self::$_event = $event;
-        } else if ($event instanceof WP_Post ) {
-            if ( isset($event->EE_Event) && $event->EE_Event instanceof EE_Event) {
+        } else if ($event instanceof WP_Post) {
+            if (isset($event->EE_Event) && $event->EE_Event instanceof EE_Event) {
                 self::$_event = $event->EE_Event;
-            } else if ( $event->post_type === 'espresso_events') {
+            } else if ($event->post_type === 'espresso_events') {
                 $event->EE_Event = EEM_Event::instance()->instantiate_class_from_post_object($event);
                 self::$_event = $event->EE_Event;
             }
@@ -255,7 +255,7 @@ 
             $dev_msg = $user_msg
                        . __('In order to generate a ticket selector, please ensure you are passing either an EE_Event object or a WP_Post object of the post type "espresso_event" to the EE_Ticket_Selector class constructor.',
                     'event_espresso');
-            EE_Error::add_error($user_msg . '||' . $dev_msg, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($user_msg.'||'.$dev_msg, __FILE__, __FUNCTION__, __LINE__);
             return false;
         }
         return true;
@@ -362,9 +362,9 @@ 
                     '</a></span></div>'
                 );
             }
-            return '<p><span class="important-notice">' . $sales_closed_msg . '</span></p>';
+            return '<p><span class="important-notice">'.$sales_closed_msg.'</span></p>';
         }
-        $templates['ticket_selector'] = TICKET_SELECTOR_TEMPLATES_PATH . 'ticket_selector_chart.template.php';
+        $templates['ticket_selector'] = TICKET_SELECTOR_TEMPLATES_PATH.'ticket_selector_chart.template.php';
         $templates['ticket_selector'] = apply_filters('FHEE__EE_Ticket_Selector__display_ticket_selector__template_path',
             $templates['ticket_selector'], self::$_event);
         // redirecting to another site for registration ??
@@ -386,7 +386,7 @@ 
             ? EED_Ticket_Selector::ticket_selector_form_open(
                 self::$_event->ID(),
                 $external_url
-            ) . $ticket_selector
+            ).$ticket_selector
             : $ticket_selector;
         // submit button and form close tag
         $ticket_selector .= ! is_admin() ? EED_Ticket_Selector::display_ticket_selector_submit() : '';
@@ -409,11 +409,11 @@ 
     {
         // if redirecting, we don't need any anything else
         if ($external_url) {
-            $html = '<form method="GET" action="' . EEH_URL::refactor_url($external_url) . '">';
-            $query_args = (array)EEH_URL::get_query_string($external_url);
+            $html = '<form method="GET" action="'.EEH_URL::refactor_url($external_url).'">';
+            $query_args = (array) EEH_URL::get_query_string($external_url);
             foreach ($query_args as $query_arg => $value) {
                 $html .= '
-				<input type="hidden" name="' . $query_arg . '" value="' . $value . '">';
+				<input type="hidden" name="' . $query_arg.'" value="'.$value.'">';
             }
             return $html;
         }
@@ -428,8 +428,8 @@ 
                 __FILE__, __FUNCTION__, __LINE__);
         }
         $extra_params = self::$_in_iframe ? ' target="_blank"' : '';
-        $html = '<form method="POST" action="' . $checkout_url . '"' . $extra_params . '>';
-        $html .= wp_nonce_field('process_ticket_selections', 'process_ticket_selections_nonce_' . $ID, true, false);
+        $html = '<form method="POST" action="'.$checkout_url.'"'.$extra_params.'>';
+        $html .= wp_nonce_field('process_ticket_selections', 'process_ticket_selections_nonce_'.$ID, true, false);
         $html .= '<input type="hidden" name="ee" value="process_ticket_selections">';
         $html = apply_filters('FHEE__EE_Ticket_Selector__ticket_selector_form_open__html', $html, self::$_event);
         return $html;
@@ -455,10 +455,10 @@ 
                 $html .= empty($external_url) ?
                     \EED_Ticket_Selector::no_tkt_slctr_end_dv()
                     : \EED_Ticket_Selector::clear_tkt_slctr();
-                $html .= '<br/>' . \EED_Ticket_Selector::ticket_selector_form_close();
-            } else if ( EED_Ticket_Selector::$_max_atndz === 1 ) {
+                $html .= '<br/>'.\EED_Ticket_Selector::ticket_selector_form_close();
+            } else if (EED_Ticket_Selector::$_max_atndz === 1) {
                 // its a "Dude Where's my Ticket Selector?" (DWMTS) type event (ie: $_max_atndz === 1)
-                if ( EED_Ticket_Selector::$_event->is_sold_out() ) {
+                if (EED_Ticket_Selector::$_event->is_sold_out()) {
                     // then instead of a View Details or Submit button, just display a "Sold Out" message
                     $html .= apply_filters(
                         'FHEE__EE_Ticket_Selector__display_ticket_selector_submit__sold_out_msg',
@@ -579,10 +579,10 @@ 
             EED_Ticket_Selector::$_event
         );
         $external_url = EED_Ticket_Selector::$_event->external_url();
-        $html = '<input id="ticket-selector-submit-' . EED_Ticket_Selector::$_event->ID() . '-btn"';
+        $html = '<input id="ticket-selector-submit-'.EED_Ticket_Selector::$_event->ID().'-btn"';
         $html .= ' class="ticket-selector-submit-btn ';
         $html .= empty($external_url) ? 'ticket-selector-submit-ajax"' : '"';
-        $html .= ' type="submit" value="' . $btn_text . '" />';
+        $html .= ' type="submit" value="'.$btn_text.'" />';
         $html .= apply_filters(
             'FHEE__EE_Ticket_Selector__after_ticket_selector_submit',
             '',
@@ -665,7 +665,7 @@ 
             );
         } else {
             wp_safe_redirect(
-                site_url('/' . EE_Registry::instance()->CFG->core->event_cpt_slug . '/')
+                site_url('/'.EE_Registry::instance()->CFG->core->event_cpt_slug.'/')
             );
         }
         die();
@@ -776,7 +776,7 @@ 
                 'The registration limit for this event is %s tickets per registration, therefore the total number of tickets you may purchase at a time can not exceed %s.',
                 $valid['max_atndz'], 'event_espresso');
             $limit_error_2 = sprintf($max_atndz_string, $valid['max_atndz'], $valid['max_atndz']);
-            EE_Error::add_error($limit_error_1 . '<br/>' . $limit_error_2, __FILE__, __FUNCTION__, __LINE__);
+            EE_Error::add_error($limit_error_1.'<br/>'.$limit_error_2, __FILE__, __FUNCTION__, __LINE__);
         } else {
             // all data appears to be valid
             $tckts_slctd = false;
@@ -896,7 +896,7 @@ 
         // grab valid id
         $valid_data['id'] = $id;
         // grab and sanitize return-url
-        $valid_data['return_url'] = esc_url_raw(EE_Registry::instance()->REQ->get('tkt-slctr-return-url-' . $id));
+        $valid_data['return_url'] = esc_url_raw(EE_Registry::instance()->REQ->get('tkt-slctr-return-url-'.$id));
         // array of other form names
         $inputs_to_clean = array(
             'event_id'   => 'tkt-slctr-event-id',
@@ -911,9 +911,9 @@ 
         // cycle through $inputs_to_clean array
         foreach ($inputs_to_clean as $what => $input_to_clean) {
             // check for POST data
-            if (EE_Registry::instance()->REQ->is_set($input_to_clean . $id)) {
+            if (EE_Registry::instance()->REQ->is_set($input_to_clean.$id)) {
                 // grab value
-                $input_value = EE_Registry::instance()->REQ->get($input_to_clean . $id);
+                $input_value = EE_Registry::instance()->REQ->get($input_to_clean.$id);
                 switch ($what) {
                     // integers
                     case 'event_id':
@@ -934,8 +934,8 @@ 
                         // if qty is coming from a radio button input, then we need to assemble an array of rows
                         if ( ! is_array($row_qty)) {
                             // get number of rows
-                            $rows = EE_Registry::instance()->REQ->is_set('tkt-slctr-rows-' . $id)
-                                ? absint(EE_Registry::instance()->REQ->get('tkt-slctr-rows-' . $id))
+                            $rows = EE_Registry::instance()->REQ->is_set('tkt-slctr-rows-'.$id)
+                                ? absint(EE_Registry::instance()->REQ->get('tkt-slctr-rows-'.$id))
                                 : 1;
                             // explode ints by the dash
                             $row_qty = explode('-', $row_qty);
@@ -963,7 +963,7 @@ 
                     case 'ticket_id':
                         $value_array = array();
                         // cycle thru values
-                        foreach ((array)$input_value as $key => $value) {
+                        foreach ((array) $input_value as $key => $value) {
                             // allow only numbers, letters,  spaces, commas and dashes
                             $value_array[$key] = wp_strip_all_tags($value);
                             // get ticket via the ticket id we put in the form
@@ -1104,7 +1104,7 @@ 
         $available_spaces = $ticket->qty() - $ticket->sold();
         if (isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
             // loop thru tickets, which will ALSO include individual ticket records AND a total
-            foreach ((array)self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
+            foreach ((array) self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
                 // if we want the original datetime availability BEFORE we started subtracting tickets ?
                 if ($get_original_ticket_spaces) {
                     // then grab the available spaces from the "tickets" array and compare with the above to get the lowest number
@@ -1179,7 +1179,7 @@ 
     {
         if (isset(self::$_available_spaces['tickets'][$ticket->ID()])) {
             // loop thru tickets, which will ALSO include individual ticket records AND a total
-            foreach ((array)self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
+            foreach ((array) self::$_available_spaces['tickets'][$ticket->ID()] as $DTD_ID => $spaces) {
                 // subtract the qty of selected tickets from each datetime's available spaces this ticket has access to,
                 self::$_available_spaces['datetimes'][$DTD_ID] -= $qty;
             }
@@ -1198,7 +1198,7 @@ 
     {
         // add some style
         if (apply_filters('FHEE__EED_Ticket_Selector__load_tckt_slctr_assets', false)) {
-            wp_register_style('ticket_selector', TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.css');
+            wp_register_style('ticket_selector', TICKET_SELECTOR_ASSETS_URL.'ticket_selector.css');
             wp_enqueue_style('ticket_selector');
             // make it dance
             // wp_register_script('ticket_selector', TICKET_SELECTOR_ASSETS_URL . 'ticket_selector.js', array('espresso_core'), '', TRUE);
@@ -1214,7 +1214,7 @@ 
         if (EE_Registry::instance()->REQ->get('page') === 'espresso_events'
             && EE_Registry::instance()->REQ->get('action') === 'edit'
         ) {
-            wp_register_script('ticket_selector_embed', TICKET_SELECTOR_ASSETS_URL . 'ticket-selector-embed.js',
+            wp_register_script('ticket_selector_embed', TICKET_SELECTOR_ASSETS_URL.'ticket-selector-embed.js',
                 array('ee-dialog'), EVENT_ESPRESSO_VERSION, true);
             wp_enqueue_script('ticket_selector_embed');
         }