BP_REST_Topics_Actions_Endpoint::dropdown_items( WP_REST_Request $request )

	public function dropdown_items( $request ) {

		$topic_id = $request->get_param( 'id' );
		$parent   = bbp_get_topic_forum_id( $topic_id );
		$page     = $request->get_param( 'page' );
		$per_page = $request->get_param( 'per_page' );

		$topics_query = new WP_Query(
			array(
				'post_type'          => bbp_get_topic_post_type(),
				'post_status'        => 'publish',
				'post__not_in'       => array( $topic_id ),
				'post_parent'        => $parent,
				'posts_per_page'     => $per_page,
				'paged'              => $page,
				'orderby'            => 'menu_order title',
				'order'              => 'ASC',
				'disable_categories' => true,
			)
		);

		$topics = $topics_query->posts;

		if ( empty( $topics ) ) {
			$retval = new WP_Error(
				'bp_rest_no_other_topics',
				__( 'No discussions available', 'buddyboss' ),
				array(
					'status' => 404,
				)
			);
		}

		foreach ( $topics as $topic ) {
			$data[] = array(
				'id'    => $topic->ID,
				'title' => array(
					'raw'      => $topic->post_title,
					'rendered' => bbp_get_topic_title( $topic->ID ),
				),
			);
		}

		$response = rest_ensure_response( $data );
		$response = bp_rest_response_add_total_headers( $response, $topics_query->found_posts, $per_page );

		/**
		 * Fires after a list of topics is fetched via the REST API.
		 *
		 * @param array            $topics   Fetched Topics.
		 * @param WP_REST_Response $response The response data.
		 * @param WP_REST_Request  $request  The request sent to the API.
		 *
		 * @since 0.1.0
		 */
		do_action( 'bp_rest_topics_dropdown_items', $topics, $response, $request );

		return $response;
	}