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<?php
/**
* Implements Special:PagesWithProp
*
* 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
*
* @since 1.21
* @file
* @ingroup SpecialPage
* @author Brad Jorsch
*/
/**
* Special:PagesWithProp to search the page_props table
* @ingroup SpecialPage
* @since 1.21
*/
class SpecialPagesWithProp extends QueryPage {
private $propName = null;
private $existingPropNames = null;
function __construct( $name = 'PagesWithProp' ) {
parent::__construct( $name );
}
function isCacheable() {
return false;
}
function execute( $par ) {
$this->setHeaders();
$this->outputHeader();
$this->getOutput()->addModuleStyles( 'mediawiki.special.pagesWithProp' );
$request = $this->getRequest();
$propname = $request->getVal( 'propname', $par );
$propnames = $this->getExistingPropNames();
$form = new HTMLForm( array(
'propname' => array(
'type' => 'selectorother',
'name' => 'propname',
'options' => $propnames,
'default' => $propname,
'label-message' => 'pageswithprop-prop',
'required' => true,
),
), $this->getContext() );
$form->setMethod( 'get' );
$form->setSubmitCallback( array( $this, 'onSubmit' ) );
$form->setWrapperLegendMsg( 'pageswithprop-legend' );
$form->addHeaderText( $this->msg( 'pageswithprop-text' )->parseAsBlock() );
$form->setSubmitTextMsg( 'pageswithprop-submit' );
$form->prepareForm();
$form->displayForm( false );
if ( $propname !== '' && $propname !== null ) {
$form->trySubmit();
}
}
public function onSubmit( $data, $form ) {
$this->propName = $data['propname'];
parent::execute( $data['propname'] );
}
/**
* Return an array of subpages beginning with $search that this special page will accept.
*
* @param string $search Prefix to search for
* @param int $limit Maximum number of results to return
* @param int $offset Number of pages to skip
* @return string[] Matching subpages
*/
public function prefixSearchSubpages( $search, $limit, $offset ) {
$subpages = array_keys( $this->queryExistingProps( $limit, $offset ) );
// We've already limited and offsetted, set to N and 0 respectively.
return self::prefixSearchArray( $search, count( $subpages ), $subpages, 0 );
}
/**
* Disable RSS/Atom feeds
* @return bool
*/
function isSyndicated() {
return false;
}
function getQueryInfo() {
return array(
'tables' => array( 'page_props', 'page' ),
'fields' => array(
'page_id' => 'pp_page',
'page_namespace',
'page_title',
'page_len',
'page_is_redirect',
'page_latest',
'pp_value',
),
'conds' => array(
'page_id = pp_page',
'pp_propname' => $this->propName,
),
'options' => array()
);
}
function getOrderFields() {
return array( 'page_id' );
}
/**
* @param Skin $skin
* @param object $result Result row
* @return string
*/
function formatResult( $skin, $result ) {
$title = Title::newFromRow( $result );
$ret = Linker::link( $title, null, array(), array(), array( 'known' ) );
if ( $result->pp_value !== '' ) {
// Do not show very long or binary values on the special page
$valueLength = strlen( $result->pp_value );
$isBinary = strpos( $result->pp_value, "\0" ) !== false;
$isTooLong = $valueLength > 1024;
if ( $isBinary || $isTooLong ) {
$message = $this
->msg( $isBinary ? 'pageswithprop-prophidden-binary' : 'pageswithprop-prophidden-long' )
->params( $this->getLanguage()->formatSize( $valueLength ) );
$propValue = Html::element( 'span', array( 'class' => 'prop-value-hidden' ), $message->text() );
} else {
$propValue = Html::element( 'span', array( 'class' => 'prop-value' ), $result->pp_value );
}
$ret .= $this->msg( 'colon-separator' )->escaped() . $propValue;
}
return $ret;
}
public function getExistingPropNames() {
if ( $this->existingPropNames === null ) {
$this->existingPropNames = $this->queryExistingProps();
}
return $this->existingPropNames;
}
protected function queryExistingProps( $limit = null, $offset = 0 ) {
$opts = array(
'DISTINCT', 'ORDER BY' => 'pp_propname'
);
if ( $limit ) {
$opts['LIMIT'] = $limit;
}
if ( $offset ) {
$opts['OFFSET'] = $offset;
}
$res = wfGetDB( DB_SLAVE )->select(
'page_props',
'pp_propname',
'',
__METHOD__,
$opts
);
$propnames = array();
foreach ( $res as $row ) {
$propnames[$row->pp_propname] = $row->pp_propname;
}
return $propnames;
}
protected function getGroupName() {
return 'pages';
}
}
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