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<?php

/*
 * Created on May 13, 2007
 *
 * API for MediaWiki 1.8+
 *
 * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@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.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * http://www.gnu.org/copyleft/gpl.html
 */

if (!defined('MEDIAWIKI')) {
	// Eclipse helper - will be ignored in production
	require_once ("ApiQueryBase.php");
}

/**
 * This query adds <categories> subelement to all pages with the list of images embedded into those pages.
 *
 * @ingroup API
 */
class ApiQueryCategoryInfo extends ApiQueryBase {

	public function __construct($query, $moduleName) {
		parent :: __construct($query, $moduleName, 'ci');
	}

	public function execute() {			
		$alltitles = $this->getPageSet()->getAllTitlesByNamespace();
		$categories = $alltitles[NS_CATEGORY];
		if(empty($categories))
			return;

		$titles = $this->getPageSet()->getGoodTitles() +
					$this->getPageSet()->getMissingTitles();
		$cattitles = array();
		foreach($categories as $c)
		{
			$t = $titles[$c];
			$cattitles[$c] = $t->getDbKey();
		}

		$this->addTables('category');
		$this->addFields(array('cat_title', 'cat_pages', 'cat_subcats', 'cat_files', 'cat_hidden'));
		$this->addWhere(array('cat_title' => $cattitles));			

		$db = $this->getDB();
		$res = $this->select(__METHOD__);

		$data = array();
		$catids = array_flip($cattitles);
		while($row = $db->fetchObject($res))
		{
			$vals = array();
			$vals['size'] = $row->cat_pages;
			$vals['pages'] = $row->cat_pages - $row->cat_subcats - $row->cat_files;
			$vals['files'] = $row->cat_files;
			$vals['subcats'] = $row->cat_subcats;
			if($row->cat_hidden)
				$vals['hidden'] = '';
			$this->addPageSubItems($catids[$row->cat_title], $vals);
		}
		$db->freeResult($res);
	}

	public function getDescription() {
		return 'Returns information about the given categories';
	}

	protected function getExamples() {
		return "api.php?action=query&prop=categoryinfo&titles=Category:Foo|Category:Bar";
	}

	public function getVersion() {
		return __CLASS__ . ': $Id: ApiQueryCategoryInfo.php 37504 2008-07-10 14:28:09Z catrope $';
	}
}