SpecialWantedfiles.php

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<?php
class WantedFilesPage extends WantedQueryPage {

        function __construct( $name = 'Wantedfiles' ) {
                parent::__construct( $name );
        }

        function getPageHeader() {
                # Specifically setting to use "Wanted Files" (NS_MAIN) as title, so as to get what
                # category would be used on main namespace pages, for those tricky wikipedia
                # admins who like to do {{#ifeq:{{NAMESPACE}}|foo|bar|....}}.
                $catMessage = $this->msg( 'broken-file-category' )
                        ->title( Title::newFromText( "Wanted Files", NS_MAIN ) )
                        ->inContentLanguage();
                
                if ( !$catMessage->isDisabled() ) {
                        $category = Title::makeTitleSafe( NS_CATEGORY, $catMessage->text() );
                } else {
                        $category = false;
                }

                if ( $category ) {
                        return $this
                                ->msg( 'wantedfiletext-cat' )
                                ->params( $category->getFullText() )
                                ->parseAsBlock();
                } else {
                        return $this
                                ->msg( 'wantedfiletext-nocat' )
                                ->parseAsBlock();
                }
        }

        function forceExistenceCheck() {
                return true;
        }

        function getQueryInfo() {
                return array (
                        'tables' => array ( 'imagelinks', 'image' ),
                        'fields' => array ( 'namespace' => NS_FILE,
                                        'title' => 'il_to',
                                        'value' => 'COUNT(*)' ),
                        'conds' => array ( 'img_name IS NULL' ),
                        'options' => array ( 'GROUP BY' => 'il_to' ),
                        'join_conds' => array ( 'image' =>
                                array ( 'LEFT JOIN',
                                        array ( 'il_to = img_name' )
                                )
                        )
                );
        }
}