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271 lines
8.6 KiB
PHP
Vendored
271 lines
8.6 KiB
PHP
Vendored
<?php
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/**
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* Uses a Discourse webhook to sync topics with their associated WordPress posts.
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*
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* @package WPDiscourse\SyncDiscourseTopic
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* @todo Review phpcs disablement.
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*/
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// phpcs:disable WordPress.DB.PreparedSQL
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namespace WPDiscourse\SyncDiscourseTopic;
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use WPDiscourse\DiscourseBase;
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use WPDiscourse\Shared\WebhookUtilities;
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/**
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* Class SyncDiscourseTopic
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*/
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class SyncDiscourseTopic extends DiscourseBase {
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use WebhookUtilities;
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/**
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* The current version of the wpdc_topic_blog database table.
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*
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* @access protected
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* @var string
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*/
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protected $db_version = '1.0';
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/**
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* Logger context
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*
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* @access protected
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* @var string
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*/
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protected $logger_context = 'webhook_topic';
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/**
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* SyncDiscourseTopic constructor.
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*/
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public function __construct() {
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add_action( 'init', array( $this, 'setup_options' ) );
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add_action( 'init', array( $this, 'setup_logger' ) );
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add_action( 'rest_api_init', array( $this, 'initialize_update_content_route' ) );
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add_action( 'plugins_loaded', array( $this, 'maybe_create_db' ) );
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$this->supported_events = array(
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'post_created',
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'post_edited',
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);
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}
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/**
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* Registers the Rest API route wp-discourse/v1/update-topic-content.
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*/
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public function initialize_update_content_route() {
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if ( $this->webhook_enabled() ) {
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register_rest_route(
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'wp-discourse/v1',
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'update-topic-content',
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array(
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array(
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'methods' => \WP_REST_Server::CREATABLE,
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'permission_callback' => function () {
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return true;
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},
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'callback' => array( $this, 'update_topic_content' ),
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),
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)
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);
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}
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}
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/**
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* Handles the REST request.
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*
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* @param \WP_REST_Request $request The WP_REST_Request data object.
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*
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* @return null|\WP_Error
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*/
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public function update_topic_content( $request ) {
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$data = $this->get_webhook_data( $request );
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if ( is_wp_error( $data ) ) {
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return $this->failed_response( $data->get_error_message() );
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}
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do_action( 'wpdc_before_webhook_post_update', $data->json );
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$post_data = $data->json['post'];
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$use_multisite_configuration = is_multisite() && ! empty( $this->options['multisite-configuration-enabled'] );
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$post_ids = array();
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if ( $use_multisite_configuration ) {
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global $wpdb;
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$table_name = $wpdb->base_prefix . 'wpdc_topic_blog';
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$topic_id = intval( $post_data['topic_id'] );
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$query = "SELECT blog_id FROM $table_name WHERE topic_id = %d";
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$blog_id = $wpdb->get_var( $wpdb->prepare( $query, $topic_id ) );
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if ( $blog_id ) {
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switch_to_blog( $blog_id );
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$post_ids = $this->update_post_metadata( $post_data );
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restore_current_blog();
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}
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} else {
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$post_ids = $this->update_post_metadata( $post_data );
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}
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do_action( 'wpdc_after_webhook_post_update', $post_ids );
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if ( ! empty( $post_ids ) ) {
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return $this->success_response( 'The posts have been updated.' );
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} else {
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return $this->failed_response( 'No posts were found.' );
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}
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}
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/**
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* Creates the wpdc_topic_blog database table using the site's base table prefix.
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*
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* The database table is only created in multisite installations when the multisite_configuration option is enabled.
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* The table is used to associate the topic_id that's returned from a Discourse webhook request, with a post that's
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* been published on a WordPress subsite.
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*/
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public function maybe_create_db() {
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global $wpdb;
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if ( is_multisite() ) {
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$use_multisite_configuration = ( 1 === intval( get_site_option( 'wpdc_multisite_configuration' ) ) );
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$create_or_update_db = get_site_option( 'wpdc_topic_blog_db_version' ) !== $this->db_version;
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if ( $use_multisite_configuration && $create_or_update_db ) {
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$table_name = $wpdb->base_prefix . 'wpdc_topic_blog';
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$charset_collate = $wpdb->get_charset_collate();
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$sql = "CREATE TABLE $table_name (
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topic_id mediumint(9) NOT NULL,
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blog_id mediumint(9) NOT NULL,
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PRIMARY KEY (topic_id)
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) $charset_collate;";
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require_once ABSPATH . 'wp-admin/includes/upgrade.php';
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$result = dbDelta( $sql );
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if ( ! empty( $result[ $table_name ] ) ) {
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update_site_option( 'wpdc_topic_blog_db_version', $this->db_version );
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}
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}
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}
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}
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/**
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* Tries to update some post metadata for WordPress posts that are associated with Discourse topics.
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*
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* The function tries to find the post from the Discourse topic_id that's returned with the webhook. For posts that
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* have been published through the WP Discourse plugin prior to version 1.4.0 the topic_id will not be present. In
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* this case, it then tries to find the post from its title. If that fails, an optional email notification is sent.
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*
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* If a post is found, if the post_number - 1 is greater than the saved discourse_comments_count, the comments count
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* is updated and the post is marked as needing to be refreshed for the next time DiscourseComment::sync_comments is run.
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*
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* @param array $post_data The post_data from the Discourse webhook request.
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* @return null
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*/
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protected function update_post_metadata( $post_data ) {
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$topic_id = ! empty( $post_data['topic_id'] ) ? intval( $post_data['topic_id'] ) : null;
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$post_number = ! empty( $post_data['post_number'] ) ? intval( $post_data['post_number'] ) : null;
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$post_title = ! empty( $post_data['topic_title'] ) ? sanitize_text_field( $post_data['topic_title'] ) : null;
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$comments_count = ! empty( $post_data['topic_posts_count'] ) ? intval( $post_data['topic_posts_count'] ) - 1 : null;
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$post_type = ! empty( $post_data['post_type'] ) ? intval( $post_data['post_type'] ) : null;
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$post_ids = array();
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if ( $topic_id && $post_number && $post_title ) {
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$post_ids = $this->get_post_ids_from_topic_id( $topic_id );
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if ( $post_ids ) {
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foreach ( $post_ids as $post_id ) {
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update_post_meta( $post_id, 'wpdc_sync_post_comments', 1 );
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// The topic_posts_count is being returned with the webhook data as of Discourse version 2.0.0.beta1.
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if ( $comments_count ) {
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update_post_meta( $post_id, 'discourse_comments_count', $comments_count );
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} else {
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// If the post_number is > discourse_comments_count, update the comments count.
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$current_comment_count = get_post_meta( $post_id, 'discourse_comments_count', true );
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if ( $current_comment_count < $post_number - 1 ) {
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update_post_meta( $post_id, 'discourse_comments_count', $post_number - 1 );
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}
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}
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$unlisted = get_post_meta( $post_id, 'wpdc_unlisted_topic', true );
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if ( ! empty( $unlisted ) && $comments_count > 0 && 1 === $post_type ) {
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$this->list_topic( $post_id, $topic_id );
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}
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}
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if ( ! empty( $this->options['verbose-webhook-logs'] ) ) {
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$this->logger->info( 'update_topic_content.update_post_metadata_success', array( 'post_ids' => implode( ',', $post_ids ) ) );
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}
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}
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}
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return $post_ids;
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}
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/**
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* Changes a post's Discourse topic status from unlisted to listed.
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*
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* @param int $post_id The id of the post that needs to be listed.
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* @param int $topic_id The id of the topic that needs to be listed.
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*
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* @return null|\WP_Error
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*/
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protected function list_topic( $post_id, $topic_id ) {
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$status_path = "/t/{$topic_id}/status";
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$body = array(
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'status' => 'visible',
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'enabled' => 'true',
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);
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$args = array(
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'body' => $body,
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'method' => 'PUT',
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);
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$response = $this->discourse_request( $status_url, $args );
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if ( is_wp_error( $response ) ) {
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return $response;
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} elseif ( ! $this->validate( $response ) ) {
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return new \WP_Error( 'discourse_response_error', 'Unable to unlist the Discourse topic.' );
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}
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delete_post_meta( $post_id, 'wpdc_unlisted_topic' );
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return null;
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}
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/**
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* Tries to find a WordPress posts that are associated with a Discourse topic_id.
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*
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* An array is being returned because it's possible for more than one WordPress post to be associated with a Discourse topic.
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*
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* @param int $topic_id The topic_id to lookup.
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*
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* @return array|null
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*/
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protected function get_post_ids_from_topic_id( $topic_id ) {
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global $wpdb;
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$topic_posts = $wpdb->get_results( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = 'discourse_topic_id' AND meta_value = %d", $topic_id ) );
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if ( ! empty( $topic_posts ) ) {
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$topic_post_ids = array();
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foreach ( $topic_posts as $topic_post ) {
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$topic_post_ids[] = $topic_post->post_id;
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}
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return $topic_post_ids;
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}
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return null;
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}
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/**
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* Common webhook enabled function.
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*/
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protected function webhook_enabled() {
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return ! empty( $this->options['use-discourse-webhook'] );
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}
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}
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