1 files changed, 110 insertions, 0 deletions
diff --git a/www/wiki/includes/api/ApiQueryPagePropNames.php b/www/wiki/includes/api/ApiQueryPagePropNames.php
new file mode 100644
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+++ b/www/wiki/includes/api/ApiQueryPagePropNames.php
@@ -0,0 +1,110 @@
+<?php
+/**
+ * Copyright © 2013 Wikimedia Foundation and contributors
+ *
+ * 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
+ * @since 1.21
+ */
+
+/**
+ * A query module to list used page props
+ *
+ * @ingroup API
+ * @since 1.21
+ */
+class ApiQueryPagePropNames extends ApiQueryBase {
+
+	public function __construct( ApiQuery $query, $moduleName ) {
+		parent::__construct( $query, $moduleName, 'ppn' );
+	}
+
+	public function getCacheMode( $params ) {
+		return 'public';
+	}
+
+	public function execute() {
+		$params = $this->extractRequestParams();
+
+		$this->addTables( 'page_props' );
+		$this->addFields( 'pp_propname' );
+		$this->addOption( 'DISTINCT' );
+		$this->addOption( 'ORDER BY', 'pp_propname' );
+
+		if ( $params['continue'] ) {
+			$cont = explode( '|', $params['continue'] );
+			$this->dieContinueUsageIf( count( $cont ) != 1 );
+
+			// Add a WHERE clause
+			$this->addWhereRange( 'pp_propname', 'newer', $cont[0], null );
+		}
+
+		$limit = $params['limit'];
+
+		// mysql has issues with limit in loose index T115825
+		if ( $this->getDB()->getType() !== 'mysql' ) {
+			$this->addOption( 'LIMIT', $limit + 1 );
+		}
+
+		$result = $this->getResult();
+		$count = 0;
+		foreach ( $this->select( __METHOD__ ) as $row ) {
+			if ( ++$count > $limit ) {
+				// We've reached the one extra which shows that there are
+				// additional pages to be had. Stop here...
+				$this->setContinueEnumParameter( 'continue', $row->pp_propname );
+				break;
+			}
+
+			$vals = [];
+			$vals['propname'] = $row->pp_propname;
+			$fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $vals );
+			if ( !$fit ) {
+				$this->setContinueEnumParameter( 'continue', $row->pp_propname );
+				break;
+			}
+		}
+
+		$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'p' );
+	}
+
+	public function getAllowedParams() {
+		return [
+			'continue' => [
+				ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
+			],
+			'limit' => [
+				ApiBase::PARAM_TYPE => 'limit',
+				ApiBase::PARAM_DFLT => 10,
+				ApiBase::PARAM_MIN => 1,
+				ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
+				ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
+			],
+		];
+	}
+
+	protected function getExamplesMessages() {
+		return [
+			'action=query&list=pagepropnames'
+				=> 'apihelp-query+pagepropnames-example-simple',
+		];
+	}
+
+	public function getHelpUrls() {
+		return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Pagepropnames';
+	}
+}