321 lines
8 KiB
PHP
321 lines
8 KiB
PHP
<?php
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/**
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* ActivityPub Transformer for the plugin Very Simple Event List.
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*
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* @package activity-event-transformers
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* @license AGPL-3.0-or-later
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*/
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use Activitypub\Model\Blog_user;
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use Activitypub\Activity\Extended_Object\Event;
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use Activitypub\Activity\Extended_Object\Place;
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use function Activitypub\get_rest_url_by_path;
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly.
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}
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/**
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* ActivityPub Transformer for VS Event
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*
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* @since 1.0.0
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*/
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class VS_Event extends BaseEvent {
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/**
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* The target transformet ActivityPub Event object.
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*
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* @var Event
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*/
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protected $ap_object;
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/**
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* Get transformer name.
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*
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* Retrieve the transformers name.
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*
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* @since 1.0.0
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* @access public
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* @return string Widget name.
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*/
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public function get_transformer_name() {
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return 'activitypub-event-transformers/vs-event';
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}
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/**
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* Get transformer title.
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*
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* Retrieve the transformers label.
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*
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* @since 1.0.0
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* @access public
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* @return string Widget title.
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*/
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public function get_transformer_label() {
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return 'VS Event';
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}
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/**
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* Get supported post types.
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*
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* Retrieve the list of supported WordPress post types this transformer widget can handle.
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*
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* @since 1.0.0
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* @access public
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* @return array Widget categories.
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*/
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public static function get_supported_post_types() {
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return array( 'event' );
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}
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/**
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* Returns the ActivityStreams 2.0 Object-Type for an Event.
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*
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* @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event
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* @since 1.0.0
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* @return string The Event Object-Type.
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*/
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protected function get_type() {
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return 'Event';
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}
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/**
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* Get the event location.
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*
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* @param int $post_id The WordPress post ID.
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* @return array The Place.
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*/
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public function get_location() {
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$address = get_post_meta( $this->wp_object->ID, 'event-location', true );
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$place = new Place();
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$place->set_type( 'Place' );
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$place->set_name( $address );
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$place->set_address( $address );
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return $place;
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}
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/**
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* Get the end time from the events metadata.
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*/
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protected function get_end_time() {
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$end_time = get_post_meta( $this->wp_object->ID, 'event-date', true );
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return \gmdate( 'Y-m-d\TH:i:s\Z', $end_time );
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}
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/**
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* Get the end time from the events metadata.
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*/
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protected function get_start_time() {
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$start_time = get_post_meta( $this->wp_object->ID, 'event-start-date', true );
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return \gmdate( 'Y-m-d\TH:i:s\Z', $start_time );
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}
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/**
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* Get the event link from the events metadata.
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*/
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private function get_event_link() {
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$event_link = get_post_meta( $this->wp_object->ID, 'event-link', true );
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if ( $event_link ) {
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return array(
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'type' => 'Link',
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'name' => 'Website',
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'href' => \esc_url( $event_link ),
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'mediaType' => 'text/html',
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);
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}
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}
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/**
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* Overrides/extends the get_attachments function to also add the event Link.
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*/
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protected function get_attachment() {
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$attachments = parent::get_attachment();
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if ( count( $attachments ) ) {
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$attachments[0]['type'] = 'Document';
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$attachments[0]['name'] = 'Banner';
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}
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$event_link = $this->get_event_link();
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if ( $event_link ) {
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$attachments[] = $this->get_event_link();
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}
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return $attachments;
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}
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/**
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* This function tries to map VS-Event categories to Mobilizon event categories.
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*
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* @return string $category
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*/
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protected function get_category() {
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$post_categories = wp_get_post_terms( $this->wp_object->ID, 'event_cat' );
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if ( empty( $post_categories ) ) {
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return 'MEETING';
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}
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// Prepare an array to store all category information for comparison.
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$category_info = array();
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// Extract relevant category information (name, slug, description) from the categories array.
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foreach ( $post_categories as $category ) {
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$category_info[] = strtolower( $category->name );
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$category_info[] = strtolower( $category->slug );
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$category_info[] = strtolower( $category->description );
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}
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// Convert mobilizon categories to lowercase for case-insensitive comparison.
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$mobilizon_categories = array_map( 'strtolower', Event::DEFAULT_EVENT_CATEGORIES );
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// Initialize variables to track the best match.
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$best_mobilizon_category_match = '';
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$best_match_length = 0;
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// Check for the best match.
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foreach ( $mobilizon_categories as $mobilizon_category ) {
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foreach ( $category_info as $category ) {
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foreach ( explode( '_', $mobilizon_category ) as $mobilizon_category_slice ) {
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if ( stripos( $category, $mobilizon_category_slice ) !== false ) {
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// Check if the current match is longer than the previous best match.
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$current_match_legnth = strlen( $mobilizon_category_slice );
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if ( $current_match_legnth > $best_match_length ) {
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$best_mobilizon_category_match = $mobilizon_category;
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$best_match_length = $current_match_legnth;
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}
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}
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}
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}
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}
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return ( '' != $best_mobilizon_category_match ) ? strtoupper( $best_mobilizon_category_match ) : 'MEETING';
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}
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/**
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* Returns the User-URL of the Author of the Post.
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*
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* If `single_user` mode is enabled, the URL of the Blog-User is returned.
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*
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* @return string The User-URL.
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*/
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protected function get_attributed_to() {
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$user = new Blog_User();
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return $user->get_url();
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}
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/**
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* Create a custom summary.
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*
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* It contains also the most important meta-information. The summary is often used when the
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* ActivityPub object type 'Event' is not supported, e.g. in Mastodon.
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*
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* @return string $summary The custom event summary.
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*/
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public function get_summary() {
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if ( $this->wp_object->excerpt ) {
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$excerpt = $this->wp_object->post_excerpt;
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} elseif ( get_post_meta( $this->wp_object->ID, 'event-summary', true ) ) {
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$excerpt = get_post_meta( $this->wp_object->ID, 'event-summary', true );
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} else {
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$excerpt = $this->get_content();
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}
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$address = get_post_meta( $this->wp_object->ID, 'event-location', true );
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$start_time = get_post_meta( $this->wp_object->ID, 'event-start-date', true );
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$datetime_format = get_option( 'date_format' ) . ' ' . get_option( 'time_format' );
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$start_time_string = wp_date( $datetime_format, $start_time );
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$summary = "📍 {$address}\n📅 {$start_time_string}\n\n{$excerpt}";
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return $summary;
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}
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/**
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* Generic setter.
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*
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* @param string $key The key to set.
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* @param string $value The value to set.
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*
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* @return mixed The value.
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*/
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public function set( $key, $value ) {
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if ( ! $this->ap_object->has( $key ) ) {
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return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
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}
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$setter_function = 'set_' . $key;
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$getter_function = 'get_' . $key;
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if ( in_array( $getter_function, get_class_methods( $this ) ) ) {
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$this->ap_object->$setter_function( $this->$getter_function() );
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} else {
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$this->ap_object->$setter_function( $value );
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}
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return $this;
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}
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/**
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* Magic function to implement setter
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*
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* @param string $method The method name.
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* @param string $params The method params.
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*
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* @return void
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*/
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public function __call( $method, $params ) {
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$var = \strtolower( \substr( $method, 4 ) );
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if ( \strncasecmp( $method, 'set', 3 ) === 0 ) {
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return $this->set( $var, $params[0] );
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}
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// when do we need: call_user_func( array( $activitypub_object, $setter ), $value );
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return $this;
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}
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/**
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* Transform the WordPress Object into an ActivityPub Object.
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*
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* @return Activitypub\Activity\Event
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*/
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public function to_object() {
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$this->ap_object = new Event();
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$this
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->set_content()
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->set_content_map()
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->set_attributed_to()
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->set_published()
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->set_start_time()
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->set_end_time()
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->set_type()
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->set_category()
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->set_attachment()
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->set_comments_enabled( true )
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->set_external_participation_url( $this->get_url() )
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->set_status( 'CONFIRMED' )
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->set_name( get_the_title( $this->wp_object->ID ) )
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->set_is_online( false )
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->set_in_language( $this->get_locale() )
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->set_actor( get_rest_url_by_path( 'application' ) )
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->set_to( array( 'https://www.w3.org/ns/activitystreams#Public' ) )
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->set_location();
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return $this->ap_object;
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}
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}
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