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<?php
/**
*
*
* Created on Dec 22, 2010
*
* Copyright © 2010 Roan Kattouw "<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
* 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
*/
/**
* Query module to get the results of a QueryPage-based special page
*
* @ingroup API
*/
class ApiQueryQueryPage extends ApiQueryGeneratorBase {
private $qpMap;
public function __construct( ApiQuery $query, $moduleName ) {
parent::__construct( $query, $moduleName, 'qp' );
// Build mapping from special page names to QueryPage classes
$uselessQueryPages = $this->getConfig()->get( 'APIUselessQueryPages' );
$this->qpMap = array();
foreach ( QueryPage::getPages() as $page ) {
if ( !in_array( $page[1], $uselessQueryPages ) ) {
$this->qpMap[$page[1]] = $page[0];
}
}
}
public function execute() {
$this->run();
}
public function executeGenerator( $resultPageSet ) {
$this->run( $resultPageSet );
}
/**
* @param ApiPageSet $resultPageSet
*/
public function run( $resultPageSet = null ) {
$params = $this->extractRequestParams();
$result = $this->getResult();
/** @var $qp QueryPage */
$qp = new $this->qpMap[$params['page']]();
if ( !$qp->userCanExecute( $this->getUser() ) ) {
$this->dieUsageMsg( 'specialpage-cantexecute' );
}
$r = array( 'name' => $params['page'] );
if ( $qp->isCached() ) {
if ( !$qp->isCacheable() ) {
$r['disabled'] = true;
} else {
$r['cached'] = true;
$ts = $qp->getCachedTimestamp();
if ( $ts ) {
$r['cachedtimestamp'] = wfTimestamp( TS_ISO_8601, $ts );
}
$r['maxresults'] = $this->getConfig()->get( 'QueryCacheLimit' );
}
}
$result->addValue( array( 'query' ), $this->getModuleName(), $r );
if ( $qp->isCached() && !$qp->isCacheable() ) {
// Disabled query page, don't run the query
return;
}
$res = $qp->doQuery( $params['offset'], $params['limit'] + 1 );
$count = 0;
$titles = array();
foreach ( $res as $row ) {
if ( ++$count > $params['limit'] ) {
// We've had enough
$this->setContinueEnumParameter( 'offset', $params['offset'] + $params['limit'] );
break;
}
$title = Title::makeTitle( $row->namespace, $row->title );
if ( is_null( $resultPageSet ) ) {
$data = array( 'value' => $row->value );
if ( $qp->usesTimestamps() ) {
$data['timestamp'] = wfTimestamp( TS_ISO_8601, $row->value );
}
self::addTitleInfo( $data, $title );
foreach ( $row as $field => $value ) {
if ( !in_array( $field, array( 'namespace', 'title', 'value', 'qc_type' ) ) ) {
$data['databaseResult'][$field] = $value;
}
}
$fit = $result->addValue( array( 'query', $this->getModuleName(), 'results' ), null, $data );
if ( !$fit ) {
$this->setContinueEnumParameter( 'offset', $params['offset'] + $count - 1 );
break;
}
} else {
$titles[] = $title;
}
}
if ( is_null( $resultPageSet ) ) {
$result->addIndexedTagName(
array( 'query', $this->getModuleName(), 'results' ),
'page'
);
} else {
$resultPageSet->populateFromTitles( $titles );
}
}
public function getCacheMode( $params ) {
/** @var $qp QueryPage */
$qp = new $this->qpMap[$params['page']]();
if ( $qp->getRestriction() != '' ) {
return 'private';
}
return 'public';
}
public function getAllowedParams() {
return array(
'page' => array(
ApiBase::PARAM_TYPE => array_keys( $this->qpMap ),
ApiBase::PARAM_REQUIRED => true
),
'offset' => array(
ApiBase::PARAM_DFLT => 0,
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
),
'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
),
);
}
protected function getExamplesMessages() {
return array(
'action=query&list=querypage&qppage=Ancientpages'
=> 'apihelp-query+querypage-example-ancientpages',
);
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/API:Querypage';
}
}
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