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<?php
/**
* Variant of QueryPage which uses a gallery to output results, thus
* suited for reports generating images
*
* @ingroup SpecialPage
* @author Rob Church <robchur@gmail.com>
*/
class ImageQueryPage extends QueryPage {
/**
* Format and output report results using the given information plus
* OutputPage
*
* @param OutputPage $out OutputPage to print to
* @param Skin $skin User skin to use
* @param Database $dbr Database (read) connection to use
* @param int $res Result pointer
* @param int $num Number of available result rows
* @param int $offset Paging offset
*/
protected function outputResults( $out, $skin, $dbr, $res, $num, $offset ) {
if( $num > 0 ) {
$gallery = new ImageGallery();
$gallery->useSkin( $skin );
# $res might contain the whole 1,000 rows, so we read up to
# $num [should update this to use a Pager]
for( $i = 0; $i < $num && $row = $dbr->fetchObject( $res ); $i++ ) {
$image = $this->prepareImage( $row );
if( $image ) {
$gallery->add( $image->getTitle(), $this->getCellHtml( $row ) );
}
}
$out->addHtml( $gallery->toHtml() );
}
}
/**
* Prepare an image object given a result row
*
* @param object $row Result row
* @return Image
*/
private function prepareImage( $row ) {
$namespace = isset( $row->namespace ) ? $row->namespace : NS_IMAGE;
$title = Title::makeTitleSafe( $namespace, $row->title );
return ( $title instanceof Title && $title->getNamespace() == NS_IMAGE )
? wfFindFile( $title )
: null;
}
/**
* Get additional HTML to be shown in a results' cell
*
* @param object $row Result row
* @return string
*/
protected function getCellHtml( $row ) {
return '';
}
}
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