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<?php
/*
* Created on December 12, 2007
*
* API for MediaWiki 1.8+
*
* Copyright (C) 2007 Roan Kattouw <Firstname>.<Lastname>@home.nl
*
* 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' );
}
/**
* Query module to enumerate all categories, even the ones that don't have
* category pages.
*
* @ingroup API
*/
class ApiQueryAllCategories extends ApiQueryGeneratorBase {
public function __construct( $query, $moduleName ) {
parent :: __construct( $query, $moduleName, 'ac' );
}
public function execute() {
$this->run();
}
public function getCacheMode( $params ) {
return 'public';
}
public function executeGenerator( $resultPageSet ) {
$this->run( $resultPageSet );
}
private function run( $resultPageSet = null ) {
$db = $this->getDB();
$params = $this->extractRequestParams();
$this->addTables( 'category' );
$this->addFields( 'cat_title' );
$dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' );
$from = ( is_null( $params['from'] ) ? null : $this->titlePartToKey( $params['from'] ) );
$this->addWhereRange( 'cat_title', $dir, $from, null );
if ( isset ( $params['prefix'] ) )
$this->addWhere( 'cat_title' . $db->buildLike( $this->titlePartToKey( $params['prefix'] ), $db->anyString() ) );
$this->addOption( 'LIMIT', $params['limit'] + 1 );
$this->addOption( 'ORDER BY', 'cat_title' . ( $params['dir'] == 'descending' ? ' DESC' : '' ) );
$prop = array_flip( $params['prop'] );
$this->addFieldsIf( array( 'cat_pages', 'cat_subcats', 'cat_files' ), isset( $prop['size'] ) );
if ( isset( $prop['hidden'] ) )
{
$this->addTables( array( 'page', 'page_props' ) );
$this->addJoinConds( array(
'page' => array( 'LEFT JOIN', array(
'page_namespace' => NS_CATEGORY,
'page_title=cat_title' ) ),
'page_props' => array( 'LEFT JOIN', array(
'pp_page=page_id',
'pp_propname' => 'hiddencat' ) ),
) );
$this->addFields( 'pp_propname AS cat_hidden' );
}
$res = $this->select( __METHOD__ );
$pages = array();
$categories = array();
$result = $this->getResult();
$count = 0;
while ( $row = $db->fetchObject( $res ) ) {
if ( ++ $count > $params['limit'] ) {
// We've reached the one extra which shows that there are additional cats to be had. Stop here...
// TODO: Security issue - if the user has no right to view next title, it will still be shown
$this->setContinueEnumParameter( 'from', $this->keyToTitle( $row->cat_title ) );
break;
}
// Normalize titles
$titleObj = Title::makeTitle( NS_CATEGORY, $row->cat_title );
if ( !is_null( $resultPageSet ) )
$pages[] = $titleObj->getPrefixedText();
else {
$item = array();
$result->setContent( $item, $titleObj->getText() );
if ( isset( $prop['size'] ) ) {
$item['size'] = intval( $row->cat_pages );
$item['pages'] = $row->cat_pages - $row->cat_subcats - $row->cat_files;
$item['files'] = intval( $row->cat_files );
$item['subcats'] = intval( $row->cat_subcats );
}
if ( isset( $prop['hidden'] ) && $row->cat_hidden )
$item['hidden'] = '';
$fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $item );
if ( !$fit )
{
$this->setContinueEnumParameter( 'from', $this->keyToTitle( $row->cat_title ) );
break;
}
}
}
$db->freeResult( $res );
if ( is_null( $resultPageSet ) ) {
$result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'c' );
} else {
$resultPageSet->populateFromTitles( $pages );
}
}
public function getAllowedParams() {
return array (
'from' => null,
'prefix' => null,
'dir' => array(
ApiBase :: PARAM_DFLT => 'ascending',
ApiBase :: PARAM_TYPE => array(
'ascending',
'descending'
),
),
'limit' => array (
ApiBase :: PARAM_DFLT => 10,
ApiBase :: PARAM_TYPE => 'limit',
ApiBase :: PARAM_MIN => 1,
ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
),
'prop' => array (
ApiBase :: PARAM_TYPE => array( 'size', 'hidden' ),
ApiBase :: PARAM_DFLT => '',
ApiBase :: PARAM_ISMULTI => true
),
);
}
public function getParamDescription() {
return array (
'from' => 'The category to start enumerating from.',
'prefix' => 'Search for all category titles that begin with this value.',
'dir' => 'Direction to sort in.',
'limit' => 'How many categories to return.',
'prop' => 'Which properties to get',
);
}
public function getDescription() {
return 'Enumerate all categories';
}
protected function getExamples() {
return array (
'api.php?action=query&list=allcategories&acprop=size',
'api.php?action=query&generator=allcategories&gacprefix=List&prop=info',
);
}
public function getVersion() {
return __CLASS__ . ': $Id: ApiQueryAllCategories.php 69932 2010-07-26 08:03:21Z tstarling $';
}
}
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