]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/api/ApiQueryImages.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / api / ApiQueryImages.php
index 9dbe08a6c46418745d8dc4f5942115e5418e1c6e..0086c58a9301bf2169bed304cff9a7b93ea78d89 100644 (file)
@@ -1,11 +1,10 @@
 <?php
-
-/*
- * Created on May 13, 2007
+/**
  *
- * API for MediaWiki 1.8+
  *
- * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@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')) {
-       // Eclipse helper - will be ignored in production
-       require_once ("ApiQueryBase.php");
-}
-
 /**
- * This query adds an <images> subelement to all pages with the list of images embedded into those pages.
+ * 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( ApiQuery $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($resultPageSet = null) {
-
-               if ($this->getPageSet()->getGoodTitleCount() == 0)
-                       return; // nothing to do
+       /**
+        * @param ApiPageSet $resultPageSet
+        */
+       private function run( $resultPageSet = null ) {
+               if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
+                       return; // nothing to do
+               }
 
                $params = $this->extractRequestParams();
-               $this->addFields(array (
+               $this->addFields( [
                        'il_from',
                        'il_to'
-               ));
+               ] );
+
+               $this->addTables( 'imagelinks' );
+               $this->addWhereFld( 'il_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
+               if ( !is_null( $params['continue'] ) ) {
+                       $cont = explode( '|', $params['continue'] );
+                       $this->dieContinueUsageIf( count( $cont ) != 2 );
+                       $op = $params['dir'] == 'descending' ? '<' : '>';
+                       $ilfrom = intval( $cont[0] );
+                       $ilto = $this->getDB()->addQuotes( $cont[1] );
+                       $this->addWhere(
+                               "il_from $op $ilfrom OR " .
+                               "(il_from = $ilfrom AND " .
+                               "il_to $op= $ilto)"
+                       );
+               }
 
-               $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')");
+               $sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
+               // 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' . $sort );
+               } else {
+                       $this->addOption( 'ORDER BY', [
+                               'il_from' . $sort,
+                               'il_to' . $sort
+                       ] );
+               }
+               $this->addOption( 'LIMIT', $params['limit'] + 1 );
+
+               if ( !is_null( $params['images'] ) ) {
+                       $images = [];
+                       foreach ( $params['images'] as $img ) {
+                               $title = Title::newFromText( $img );
+                               if ( !$title || $title->getNamespace() != NS_FILE ) {
+                                       $this->addWarning( [ 'apiwarn-notfile', wfEscapeWikiText( $img ) ] );
+                               } else {
+                                       $images[] = $title->getDBkey();
+                               }
+                       }
+                       $this->addWhereFld( 'il_to', $images );
                }
-               # Don't order by il_from if it's constant in the WHERE clause
-               if(count($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);
 
-               $db = $this->getDB();
-               $res = $this->select(__METHOD__);
+               $res = $this->select( __METHOD__ );
 
-               if (is_null($resultPageSet)) {
+               if ( is_null( $resultPageSet ) ) {
                        $count = 0;
-                       while ($row = $db->fetchObject($res)) {
-                               if (++$count > $params['limit']) {
+                       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));
+                                       $this->setContinueEnumParameter( 'continue', $row->il_from . '|' . $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));
+                               $vals = [];
+                               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 . '|' . $row->il_to );
                                        break;
                                }
                        }
                } else {
-
-                       $titles = array();
+                       $titles = [];
                        $count = 0;
-                       while ($row = $db->fetchObject($res)) {
-                               if (++$count > $params['limit']) {
+                       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));
+                                       $this->setContinueEnumParameter( 'continue', $row->il_from . '|' . $row->il_to );
                                        break;
                                }
-                               $titles[] = Title :: makeTitle(NS_FILE, $row->il_to);
+                               $titles[] = Title::makeTitle( NS_FILE, $row->il_to );
                        }
-                       $resultPageSet->populateFromTitles($titles);
+                       $resultPageSet->populateFromTitles( $titles );
                }
-
-               $db->freeResult($res);
        }
 
        public function getCacheMode( $params ) {
@@ -126,39 +138,40 @@ class ApiQueryImages extends ApiQueryGeneratorBase {
        }
 
        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,
-               );
+               return [
+                       'limit' => [
+                               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' => [
+                               ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
+                       ],
+                       'images' => [
+                               ApiBase::PARAM_ISMULTI => true,
+                       ],
+                       'dir' => [
+                               ApiBase::PARAM_DFLT => 'ascending',
+                               ApiBase::PARAM_TYPE => [
+                                       'ascending',
+                                       'descending'
+                               ]
+                       ],
+               ];
        }
 
-       public function getParamDescription () {
-               return array(
-                       'limit' => 'How many images to return',
-                       'continue' => 'When more results are available, use this to continue',
-               );
-       }
-
-       public function getDescription() {
-               return 'Returns all images contained on the given page(s)';
-       }
-
-       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"
-                       );
+       protected function getExamplesMessages() {
+               return [
+                       'action=query&prop=images&titles=Main%20Page'
+                               => 'apihelp-query+images-example-simple',
+                       'action=query&generator=images&titles=Main%20Page&prop=info'
+                               => 'apihelp-query+images-example-generator',
+               ];
        }
 
-       public function getVersion() {
-               return __CLASS__ . ': $Id: ApiQueryImages.php 69986 2010-07-27 03:57:39Z tstarling $';
+       public function getHelpUrls() {
+               return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Images';
        }
 }