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+<?php
+/**
+ * API for MediaWiki 1.8+
+ *
+ * Created on Aug 7, 2010
+ *
+ * Copyright © 2010 soxred93, Bryan Tong Minh
+ *
+ * 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
+ */
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+ // Eclipse helper - will be ignored in production
+ require_once( 'ApiQueryBase.php' );
+}
+
+/**
+ * A query module to show basic page information.
+ *
+ * @ingroup API
+ */
+class ApiQueryPageProps extends ApiQueryBase {
+
+ private $params;
+
+ public function __construct( $query, $moduleName ) {
+ parent::__construct( $query, $moduleName, 'pp' );
+ }
+
+ public function execute() {
+ $this->params = $this->extractRequestParams();
+
+ # Only operate on existing pages
+ $pages = $this->getPageSet()->getGoodTitles();
+ if ( !count( $pages ) ) {
+ # Nothing to do
+ return;
+ }
+
+ $this->addTables( 'page_props' );
+ $this->addFields( array( 'pp_page', 'pp_propname', 'pp_value' ) );
+ $this->addWhereFld( 'pp_page', array_keys( $pages ) );
+
+ if ( $this->params['continue'] ) {
+ $this->addWhere( 'pp_page >=' . intval( $this->params['continue'] ) );
+ }
+
+ # Force a sort order to ensure that properties are grouped by page
+ $this->addOption( 'ORDER BY', 'pp_page' );
+
+ $res = $this->select( __METHOD__ );
+ $currentPage = 0; # Id of the page currently processed
+ $props = array();
+ $result = $this->getResult();
+
+ foreach ( $res as $row ) {
+ if ( $currentPage != $row->pp_page ) {
+ # Different page than previous row, so add the properties to
+ # the result and save the new page id
+
+ if ( $currentPage ) {
+ if ( !$this->addPageProps( $result, $currentPage, $props ) ) {
+ # addPageProps() indicated that the result did not fit
+ # so stop adding data. Reset props so that it doesn't
+ # get added again after loop exit
+
+ $props = array();
+ break;
+ }
+
+ $props = array();
+ }
+
+ $currentPage = $row->pp_page;
+ }
+
+ $props[$row->pp_propname] = $row->pp_value;
+ }
+
+ if ( count( $props ) ) {
+ # Add any remaining properties to the results
+ $this->addPageProps( $result, $currentPage, $props );
+ }
+ }
+
+ /**
+ * Add page properties to an ApiResult, adding a continue
+ * parameter if it doesn't fit.
+ *
+ * @param $result ApiResult
+ * @param $page int
+ * @param $props array
+ * @return bool True if it fits in the result
+ */
+ private function addPageProps( $result, $page, $props ) {
+ $fit = $result->addValue( array( 'query', 'pages', $page ), 'pageprops', $props );
+
+ if ( !$fit ) {
+ $this->setContinueEnumParameter( 'continue', $page );
+ }
+ return $fit;
+ }
+
+ public function getCacheMode( $params ) {
+ return 'public';
+ }
+
+ public function getAllowedParams() {
+ return array( 'continue' => null );
+ }
+
+ public function getParamDescription() {
+ return array( 'continue' => 'When more results are available, use this to continue' );
+ }
+
+ public function getDescription() {
+ return 'Get various properties defined in the page content';
+ }
+
+ 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(
+ 'api.php?action=query&prop=pageprops&titles=Category:Foo',
+ );
+ }
+
+ public function getVersion() {
+ return __CLASS__ . ': $Id: ApiQueryPageProps.php 85211 2011-04-02 21:01:00Z demon $';
+ }
+}