<?php
-
-/*
- * Created on May 13, 2007
+/**
*
- * API for MediaWiki 1.8+
*
- * Copyright (C) 2006 Yuri Astrakhan <FirstnameLastname@gmail.com>
+ * Created on May 13, 2007
+ *
+ * Copyright © 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
*
* 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.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
*/
-if (!defined('MEDIAWIKI')) {
+if ( !defined( 'MEDIAWIKI' ) ) {
// Eclipse helper - will be ignored in production
- require_once ("ApiQueryBase.php");
+ require_once( "ApiQueryBase.php" );
}
/**
- * @addtogroup API
+ * This query adds an <images> subelement to all pages with the list of images embedded into those pages.
+ *
+ * @ingroup API
*/
class ApiQueryImages extends ApiQueryGeneratorBase {
- public function __construct($query, $moduleName) {
- parent :: __construct($query, $moduleName, 'im');
+ public function __construct( $query, $moduleName ) {
+ parent::__construct( $query, $moduleName, 'im' );
}
public function execute() {
$this->run();
}
- public function executeGenerator($resultPageSet) {
- $this->run($resultPageSet);
+ public function executeGenerator( $resultPageSet ) {
+ $this->run( $resultPageSet );
}
- private function run($resultPageSet = null) {
+ private function run( $resultPageSet = null ) {
+ if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
+ return; // nothing to do
+ }
- $this->addFields(array (
+ $params = $this->extractRequestParams();
+ $this->addFields( array(
'il_from',
'il_to'
- ));
-
- $this->addTables('imagelinks');
- $this->addWhereFld('il_from', array_keys($this->getPageSet()->getGoodTitles()));
- $this->addOption('ORDER BY', "il_from, il_to");
-
- $db = $this->getDB();
- $res = $this->select(__METHOD__);
-
- if (is_null($resultPageSet)) {
-
- $data = array();
- $lastId = 0; // database has no ID 0
- while ($row = $db->fetchObject($res)) {
- if ($lastId != $row->il_from) {
- if($lastId != 0) {
- $this->addPageSubItems($lastId, $data);
- $data = array();
- }
- $lastId = $row->il_from;
- }
-
- $entry = array();
- $title = Title :: makeTitle(NS_IMAGE, $row->il_to);
- $vals = ApiQueryBase :: addTitleInfo($entry, $title);
- $data[] = $entry;
+ ) );
+
+ $this->addTables( 'imagelinks' );
+ $this->addWhereFld( 'il_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
+ if ( !is_null( $params['continue'] ) ) {
+ $cont = explode( '|', $params['continue'] );
+ if ( count( $cont ) != 2 ) {
+ $this->dieUsage( 'Invalid continue param. You should pass the ' .
+ 'original value returned by the previous query', '_badcontinue' );
}
+ $ilfrom = intval( $cont[0] );
+ $ilto = $this->getDB()->strencode( $this->titleToKey( $cont[1] ) );
+ $this->addWhere(
+ "il_from > $ilfrom OR " .
+ "(il_from = $ilfrom AND " .
+ "il_to >= '$ilto')"
+ );
+ }
- if($lastId != 0) {
- $this->addPageSubItems($lastId, $data);
+ // Don't order by il_from if it's constant in the WHERE clause
+ if ( count( $this->getPageSet()->getGoodTitles() ) == 1 ) {
+ $this->addOption( 'ORDER BY', 'il_to' );
+ } else {
+ $this->addOption( 'ORDER BY', 'il_from, il_to' );
+ }
+ $this->addOption( 'LIMIT', $params['limit'] + 1 );
+
+ if ( !is_null( $params['images'] ) ) {
+ $images = array();
+ foreach ( $params['images'] as $img ) {
+ $title = Title::newFromText( $img );
+ if ( !$title || $title->getNamespace() != NS_FILE ) {
+ $this->setWarning( "``$img'' is not a file" );
+ } else {
+ $images[] = $title->getDBkey();
+ }
}
+ $this->addWhereFld( 'il_to', $images );
+ }
+ $res = $this->select( __METHOD__ );
+
+ if ( is_null( $resultPageSet ) ) {
+ $count = 0;
+ foreach ( $res as $row ) {
+ if ( ++$count > $params['limit'] ) {
+ // We've reached the one extra which shows that
+ // there are additional pages to be had. Stop here...
+ $this->setContinueEnumParameter( 'continue', $row->il_from .
+ '|' . $this->keyToTitle( $row->il_to ) );
+ break;
+ }
+ $vals = array();
+ ApiQueryBase::addTitleInfo( $vals, Title::makeTitle( NS_FILE, $row->il_to ) );
+ $fit = $this->addPageSubItem( $row->il_from, $vals );
+ if ( !$fit ) {
+ $this->setContinueEnumParameter( 'continue', $row->il_from .
+ '|' . $this->keyToTitle( $row->il_to ) );
+ break;
+ }
+ }
} else {
-
$titles = array();
- while ($row = $db->fetchObject($res)) {
- $titles[] = Title :: makeTitle(NS_IMAGE, $row->il_to);
+ $count = 0;
+ foreach ( $res as $row ) {
+ if ( ++$count > $params['limit'] ) {
+ // We've reached the one extra which shows that
+ // there are additional pages to be had. Stop here...
+ $this->setContinueEnumParameter( 'continue', $row->il_from .
+ '|' . $this->keyToTitle( $row->il_to ) );
+ break;
+ }
+ $titles[] = Title::makeTitle( NS_FILE, $row->il_to );
}
- $resultPageSet->populateFromTitles($titles);
+ $resultPageSet->populateFromTitles( $titles );
}
+ }
+
+ public function getCacheMode( $params ) {
+ return 'public';
+ }
- $db->freeResult($res);
+ public function getAllowedParams() {
+ return array(
+ '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
+ ),
+ 'continue' => null,
+ 'images' => array(
+ ApiBase::PARAM_ISMULTI => true,
+ )
+ );
}
- private function addPageSubItems($pageId, $data) {
- $result = $this->getResult();
- $result->setIndexedTagName($data, 'i');
- $result->addValue(array ('query', 'pages', intval($pageId)),
- 'images',
- $data);
+ public function getParamDescription() {
+ return array(
+ 'limit' => 'How many images to return',
+ 'continue' => 'When more results are available, use this to continue',
+ 'images' => 'Only list these images. Useful for checking whether a certain page has a certain Image.',
+ );
}
- protected function getDescription() {
- return 'Returns all links from the given page(s)';
+ public function getDescription() {
+ return 'Returns all images contained on the given page(s)';
+ }
+
+ public function getPossibleErrors() {
+ return array_merge( parent::getPossibleErrors(), array(
+ array( 'code' => '_badcontinue', 'info' => 'Invalid continue param. You should pass the original value returned by the previous query' ),
+ ) );
}
protected function getExamples() {
- return array (
- "Get a list of images used in the [[Main Page]]:",
- " api.php?action=query&prop=images&titles=Main%20Page",
- "Get information about all images used in the [[Main Page]]:",
- " api.php?action=query&generator=images&titles=Main%20Page&prop=info"
- );
+ return array(
+ 'Get a list of images used in the [[Main Page]]:',
+ ' api.php?action=query&prop=images&titles=Main%20Page',
+ 'Get information about all images used in the [[Main Page]]:',
+ ' api.php?action=query&generator=images&titles=Main%20Page&prop=info'
+ );
}
public function getVersion() {
return __CLASS__ . ': $Id$';
}
}
-?>
dépôts / lhc / web / wiklou.git / blobdiff