<?php
/**
 * Implements Special:Wantedtemplates
 *
 * Copyright © 2008, Danny B.
 * Based on SpecialWantedcategories.php by Ævar Arnfjörð Bjarmason <avarab@gmail.com>
 * makeWlhLink() taken from SpecialMostlinkedtemplates by Rob Church <robchur@gmail.com>
 *
 * 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.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup SpecialPage
 * @author Danny B.
 */

/**
 * A querypage to list the most wanted templates
 *
 * @ingroup SpecialPage
 */
class WantedTemplatesPage extends WantedQueryPage {

	function getName() {
		return 'Wantedtemplates';
	}

	function getSQL() {
		$dbr = wfGetDB( DB_SLAVE );
		list( $templatelinks, $page ) = $dbr->tableNamesN( 'templatelinks', 'page' );
		$name = $dbr->addQuotes( $this->getName() );
		return
			"
			  SELECT $name as type, 
			         tl_namespace as namespace,
			         tl_title as title,
			         COUNT(*) as value
			    FROM $templatelinks LEFT JOIN
			         $page ON tl_title = page_title AND tl_namespace = page_namespace
			   WHERE page_title IS NULL AND tl_namespace = ". NS_TEMPLATE ."
			GROUP BY tl_namespace, tl_title
			";
	}
}

/**
 * constructor
 */
function wfSpecialWantedTemplates() {
	list( $limit, $offset ) = wfCheckLimits();

	$wpp = new WantedTemplatesPage();

	$wpp->doQuery( $offset, $limit );
}