BP_Messages_Thread::user_is_sender( int $thread_id )

	public static function user_is_sender( $thread_id ) {
		global $wpdb;

		$bp = buddypress();

		$sender_ids = $wpdb->get_col( $wpdb->prepare( "SELECT sender_id FROM {$bp->messages->table_name_messages} WHERE thread_id = %d", $thread_id ) );

		if ( empty( $sender_ids ) ) {
			return false;
		}

		return in_array( bp_loggedin_user_id(), $sender_ids );
	}