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<?php
/**
* API for MediaWiki 1.17+
*
* Created on May 14, 2010
*
* Copyright © 2010 Sam Reed
* 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
* 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
*/
/**
* A query module to list all interwiki links on a page
*
* @ingroup API
*/
class ApiQueryIWLinks extends ApiQueryBase {
public function __construct( ApiQuery $query, $moduleName ) {
parent::__construct( $query, $moduleName, 'iw' );
}
public function execute() {
if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
return;
}
$params = $this->extractRequestParams();
$prop = array_flip( (array)$params['prop'] );
if ( isset( $params['title'] ) && !isset( $params['prefix'] ) ) {
$this->dieUsageMsg( array( 'missingparam', 'prefix' ) );
}
// Handle deprecated param
$this->requireMaxOneParameter( $params, 'url', 'prop' );
if ( $params['url'] ) {
$this->logFeatureUsage( 'prop=iwlinks&iwurl' );
$prop = array( 'url' => 1 );
}
$this->addFields( array(
'iwl_from',
'iwl_prefix',
'iwl_title'
) );
$this->addTables( 'iwlinks' );
$this->addWhereFld( 'iwl_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
if ( !is_null( $params['continue'] ) ) {
$cont = explode( '|', $params['continue'] );
$this->dieContinueUsageIf( count( $cont ) != 3 );
$op = $params['dir'] == 'descending' ? '<' : '>';
$db = $this->getDB();
$iwlfrom = intval( $cont[0] );
$iwlprefix = $db->addQuotes( $cont[1] );
$iwltitle = $db->addQuotes( $cont[2] );
$this->addWhere(
"iwl_from $op $iwlfrom OR " .
"(iwl_from = $iwlfrom AND " .
"(iwl_prefix $op $iwlprefix OR " .
"(iwl_prefix = $iwlprefix AND " .
"iwl_title $op= $iwltitle)))"
);
}
$sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
if ( isset( $params['prefix'] ) ) {
$this->addWhereFld( 'iwl_prefix', $params['prefix'] );
if ( isset( $params['title'] ) ) {
$this->addWhereFld( 'iwl_title', $params['title'] );
$this->addOption( 'ORDER BY', 'iwl_from' . $sort );
} else {
$this->addOption( 'ORDER BY', array(
'iwl_from' . $sort,
'iwl_title' . $sort
) );
}
} else {
// Don't order by iwl_from if it's constant in the WHERE clause
if ( count( $this->getPageSet()->getGoodTitles() ) == 1 ) {
$this->addOption( 'ORDER BY', 'iwl_prefix' . $sort );
} else {
$this->addOption( 'ORDER BY', array(
'iwl_from' . $sort,
'iwl_prefix' . $sort,
'iwl_title' . $sort
) );
}
}
$this->addOption( 'LIMIT', $params['limit'] + 1 );
$res = $this->select( __METHOD__ );
$count = 0;
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->iwl_from}|{$row->iwl_prefix}|{$row->iwl_title}"
);
break;
}
$entry = array( 'prefix' => $row->iwl_prefix );
if ( isset( $prop['url'] ) ) {
$title = Title::newFromText( "{$row->iwl_prefix}:{$row->iwl_title}" );
if ( $title ) {
$entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
}
}
ApiResult::setContentValue( $entry, 'title', $row->iwl_title );
$fit = $this->addPageSubItem( $row->iwl_from, $entry );
if ( !$fit ) {
$this->setContinueEnumParameter(
'continue',
"{$row->iwl_from}|{$row->iwl_prefix}|{$row->iwl_title}"
);
break;
}
}
}
public function getCacheMode( $params ) {
return 'public';
}
public function getAllowedParams() {
return array(
'prop' => array(
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => array(
'url',
)
),
'prefix' => null,
'title' => null,
'dir' => array(
ApiBase::PARAM_DFLT => 'ascending',
ApiBase::PARAM_TYPE => array(
'ascending',
'descending'
)
),
'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' => array(
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
),
'url' => array(
ApiBase::PARAM_DFLT => false,
ApiBase::PARAM_DEPRECATED => true,
),
);
}
protected function getExamplesMessages() {
return array(
'action=query&prop=iwlinks&titles=Main%20Page'
=> 'apihelp-query+iwlinks-example-simple',
);
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/API:Iwlinks';
}
}
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