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<?php |
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/** |
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* |
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* |
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* Created on Sep 25, 2006 |
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* |
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* Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com" |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* http://www.gnu.org/copyleft/gpl.html |
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* |
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* @file |
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*/ |
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/** |
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* Query module to enumerate all available pages. |
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* |
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* @ingroup API |
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*/ |
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class ApiQueryAllPages extends ApiQueryGeneratorBase { |
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public function __construct( ApiQuery $query, $moduleName ) { |
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parent::__construct( $query, $moduleName, 'ap' ); |
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} |
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public function execute() { |
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$this->run(); |
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} |
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public function getCacheMode( $params ) { |
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return 'public'; |
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} |
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/** |
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* @param ApiPageSet $resultPageSet |
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* @return void |
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*/ |
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public function executeGenerator( $resultPageSet ) { |
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if ( $resultPageSet->isResolvingRedirects() ) { |
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$this->dieUsage( |
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'Use "gapfilterredir=nonredirects" option instead of "redirects" ' . |
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'when using allpages as a generator', |
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'params' |
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); |
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} |
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$this->run( $resultPageSet ); |
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} |
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/** |
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* @param ApiPageSet $resultPageSet |
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* @return void |
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*/ |
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private function run( $resultPageSet = null ) { |
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$db = $this->getDB(); |
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$params = $this->extractRequestParams(); |
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// Page filters |
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$this->addTables( 'page' ); |
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View Code Duplication |
if ( !is_null( $params['continue'] ) ) { |
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$cont = explode( '|', $params['continue'] ); |
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$this->dieContinueUsageIf( count( $cont ) != 1 ); |
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$op = $params['dir'] == 'descending' ? '<' : '>'; |
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$cont_from = $db->addQuotes( $cont[0] ); |
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$this->addWhere( "page_title $op= $cont_from" ); |
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} |
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if ( $params['filterredir'] == 'redirects' ) { |
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$this->addWhereFld( 'page_is_redirect', 1 ); |
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} elseif ( $params['filterredir'] == 'nonredirects' ) { |
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$this->addWhereFld( 'page_is_redirect', 0 ); |
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} |
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$this->addWhereFld( 'page_namespace', $params['namespace'] ); |
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$dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' ); |
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$from = ( $params['from'] === null |
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? null |
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: $this->titlePartToKey( $params['from'], $params['namespace'] ) ); |
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$to = ( $params['to'] === null |
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? null |
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: $this->titlePartToKey( $params['to'], $params['namespace'] ) ); |
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$this->addWhereRange( 'page_title', $dir, $from, $to ); |
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View Code Duplication |
if ( isset( $params['prefix'] ) ) { |
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$this->addWhere( 'page_title' . $db->buildLike( |
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$this->titlePartToKey( $params['prefix'], $params['namespace'] ), |
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$db->anyString() ) ); |
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} |
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if ( is_null( $resultPageSet ) ) { |
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$selectFields = [ |
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'page_namespace', |
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'page_title', |
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'page_id' |
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]; |
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} else { |
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$selectFields = $resultPageSet->getPageTableFields(); |
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} |
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$this->addFields( $selectFields ); |
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$forceNameTitleIndex = true; |
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View Code Duplication |
if ( isset( $params['minsize'] ) ) { |
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$this->addWhere( 'page_len>=' . intval( $params['minsize'] ) ); |
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$forceNameTitleIndex = false; |
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} |
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View Code Duplication |
if ( isset( $params['maxsize'] ) ) { |
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$this->addWhere( 'page_len<=' . intval( $params['maxsize'] ) ); |
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$forceNameTitleIndex = false; |
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} |
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// Page protection filtering |
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if ( count( $params['prtype'] ) || $params['prexpiry'] != 'all' ) { |
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$this->addTables( 'page_restrictions' ); |
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$this->addWhere( 'page_id=pr_page' ); |
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$this->addWhere( "pr_expiry > {$db->addQuotes( $db->timestamp() )} OR pr_expiry IS NULL" ); |
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if ( count( $params['prtype'] ) ) { |
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$this->addWhereFld( 'pr_type', $params['prtype'] ); |
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if ( isset( $params['prlevel'] ) ) { |
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// Remove the empty string and '*' from the prlevel array |
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$prlevel = array_diff( $params['prlevel'], [ '', '*' ] ); |
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if ( count( $prlevel ) ) { |
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$this->addWhereFld( 'pr_level', $prlevel ); |
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} |
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} |
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if ( $params['prfiltercascade'] == 'cascading' ) { |
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$this->addWhereFld( 'pr_cascade', 1 ); |
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} elseif ( $params['prfiltercascade'] == 'noncascading' ) { |
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$this->addWhereFld( 'pr_cascade', 0 ); |
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} |
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} |
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$forceNameTitleIndex = false; |
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if ( $params['prexpiry'] == 'indefinite' ) { |
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$this->addWhere( "pr_expiry = {$db->addQuotes( $db->getInfinity() )} OR pr_expiry IS NULL" ); |
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} elseif ( $params['prexpiry'] == 'definite' ) { |
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$this->addWhere( "pr_expiry != {$db->addQuotes( $db->getInfinity() )}" ); |
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} |
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$this->addOption( 'DISTINCT' ); |
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} elseif ( isset( $params['prlevel'] ) ) { |
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$this->dieUsage( 'prlevel may not be used without prtype', 'params' ); |
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} |
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if ( $params['filterlanglinks'] == 'withoutlanglinks' ) { |
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$this->addTables( 'langlinks' ); |
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$this->addJoinConds( [ 'langlinks' => [ 'LEFT JOIN', 'page_id=ll_from' ] ] ); |
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$this->addWhere( 'll_from IS NULL' ); |
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$forceNameTitleIndex = false; |
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} elseif ( $params['filterlanglinks'] == 'withlanglinks' ) { |
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$this->addTables( 'langlinks' ); |
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$this->addWhere( 'page_id=ll_from' ); |
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$this->addOption( 'STRAIGHT_JOIN' ); |
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// MySQL filesorts if we use a GROUP BY that works with the rules |
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// in the 1992 SQL standard (it doesn't like having the |
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// constant-in-WHERE page_namespace column in there). Using the |
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// 1999 rules works fine, but that breaks other DBs. Sigh. |
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/// @todo Once we drop support for 1992-rule DBs, we can simplify this. |
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$dbType = $db->getType(); |
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if ( $dbType === 'mysql' || $dbType === 'sqlite' ) { |
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// Ignore the rules, or 1999 rules if you count unique keys |
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// over non-NULL columns as satisfying the requirement for |
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// "functional dependency" and don't require including |
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// constant-in-WHERE columns in the GROUP BY. |
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$this->addOption( 'GROUP BY', [ 'page_title' ] ); |
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} elseif ( $dbType === 'postgres' && $db->getServerVersion() >= 9.1 ) { |
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// 1999 rules only counting primary keys |
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$this->addOption( 'GROUP BY', [ 'page_title', 'page_id' ] ); |
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} else { |
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// 1992 rules |
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$this->addOption( 'GROUP BY', $selectFields ); |
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} |
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$forceNameTitleIndex = false; |
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} |
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if ( $forceNameTitleIndex ) { |
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$this->addOption( 'USE INDEX', 'name_title' ); |
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} |
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$limit = $params['limit']; |
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$this->addOption( 'LIMIT', $limit + 1 ); |
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$res = $this->select( __METHOD__ ); |
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// Get gender information |
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if ( MWNamespace::hasGenderDistinction( $params['namespace'] ) ) { |
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$users = []; |
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foreach ( $res as $row ) { |
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$users[] = $row->page_title; |
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} |
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GenderCache::singleton()->doQuery( $users, __METHOD__ ); |
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$res->rewind(); // reset |
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} |
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$count = 0; |
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$result = $this->getResult(); |
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foreach ( $res as $row ) { |
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if ( ++$count > $limit ) { |
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// We've reached the one extra which shows that there are |
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// additional pages to be had. Stop here... |
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$this->setContinueEnumParameter( 'continue', $row->page_title ); |
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break; |
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} |
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if ( is_null( $resultPageSet ) ) { |
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$title = Title::makeTitle( $row->page_namespace, $row->page_title ); |
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$vals = [ |
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'pageid' => intval( $row->page_id ), |
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'ns' => intval( $title->getNamespace() ), |
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'title' => $title->getPrefixedText() |
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]; |
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$fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $vals ); |
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if ( !$fit ) { |
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$this->setContinueEnumParameter( 'continue', $row->page_title ); |
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break; |
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} |
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} else { |
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$resultPageSet->processDbRow( $row ); |
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} |
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} |
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if ( is_null( $resultPageSet ) ) { |
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$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'p' ); |
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} |
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} |
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public function getAllowedParams() { |
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return [ |
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'from' => null, |
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'continue' => [ |
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ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
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], |
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'to' => null, |
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'prefix' => null, |
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'namespace' => [ |
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ApiBase::PARAM_DFLT => NS_MAIN, |
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ApiBase::PARAM_TYPE => 'namespace', |
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], |
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'filterredir' => [ |
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ApiBase::PARAM_DFLT => 'all', |
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ApiBase::PARAM_TYPE => [ |
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'all', |
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'redirects', |
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'nonredirects' |
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] |
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], |
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'minsize' => [ |
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ApiBase::PARAM_TYPE => 'integer', |
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], |
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'maxsize' => [ |
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ApiBase::PARAM_TYPE => 'integer', |
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], |
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'prtype' => [ |
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ApiBase::PARAM_TYPE => Title::getFilteredRestrictionTypes( true ), |
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ApiBase::PARAM_ISMULTI => true |
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], |
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'prlevel' => [ |
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ApiBase::PARAM_TYPE => $this->getConfig()->get( 'RestrictionLevels' ), |
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ApiBase::PARAM_ISMULTI => true |
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], |
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'prfiltercascade' => [ |
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ApiBase::PARAM_DFLT => 'all', |
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ApiBase::PARAM_TYPE => [ |
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'cascading', |
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'noncascading', |
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'all' |
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], |
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], |
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'limit' => [ |
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ApiBase::PARAM_DFLT => 10, |
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ApiBase::PARAM_TYPE => 'limit', |
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ApiBase::PARAM_MIN => 1, |
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ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1, |
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ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2 |
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], |
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'dir' => [ |
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ApiBase::PARAM_DFLT => 'ascending', |
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ApiBase::PARAM_TYPE => [ |
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'ascending', |
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'descending' |
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] |
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], |
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'filterlanglinks' => [ |
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ApiBase::PARAM_TYPE => [ |
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'withlanglinks', |
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'withoutlanglinks', |
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'all' |
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], |
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ApiBase::PARAM_DFLT => 'all' |
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], |
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309
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'prexpiry' => [ |
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310
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ApiBase::PARAM_TYPE => [ |
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311
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'indefinite', |
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312
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'definite', |
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313
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'all' |
|
314
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], |
|
315
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ApiBase::PARAM_DFLT => 'all' |
|
316
|
|
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], |
|
317
|
|
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]; |
|
318
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} |
|
319
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|
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|
|
320
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protected function getExamplesMessages() { |
|
321
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return [ |
|
322
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'action=query&list=allpages&apfrom=B' |
|
323
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=> 'apihelp-query+allpages-example-B', |
|
324
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'action=query&generator=allpages&gaplimit=4&gapfrom=T&prop=info' |
|
325
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=> 'apihelp-query+allpages-example-generator', |
|
326
|
|
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'action=query&generator=allpages&gaplimit=2&' . |
|
327
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|
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'gapfilterredir=nonredirects&gapfrom=Re&prop=revisions&rvprop=content' |
|
328
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|
|
=> 'apihelp-query+allpages-example-generator-revisions', |
|
329
|
|
|
]; |
|
330
|
|
|
} |
|
331
|
|
|
|
|
332
|
|
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public function getHelpUrls() { |
|
333
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|
|
return 'https://www.mediawiki.org/wiki/API:Allpages'; |
|
334
|
|
|
} |
|
335
|
|
|
} |
|
336
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Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: