<?php
/**
 * Delete a trackback on a page
 *
 * Copyright © 2011 Alexandre Emsenhuber
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 *
 * @file
 * @ingroup Actions
 */

class DeletetrackbackAction extends FormlessAction {

	public function getName() {
		return 'deletetrackback';
	}

	public function getRestriction() {
		return 'delete';
	}

	protected function getDescription() {
		return '';
	}

	protected function checkCanExecute( User $user ) {
		if ( !$user->matchEditToken( $this->getRequest()->getVal( 'token' ) ) ) {
			throw new ErrorPageError( 'sessionfailure-title', 'sessionfailure' );
		}

		return parent::checkCanExecute( $user );
	}

	public function onView() {
		$db = wfGetDB( DB_MASTER );
		$db->delete( 'trackbacks', array( 'tb_id' => $this->getRequest()->getInt( 'tbid' ) ) );

		$this->getOutput()->addWikiMsg( 'trackbackdeleteok' );
		$this->getTitle()->invalidateCache();
	}
}