includes/ImageQueryPage.php

   1 <?php
   2 /**
   3  * Variant of QueryPage which uses a gallery to output results.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Variant of QueryPage which uses a gallery to output results, thus
  26  * suited for reports generating images
  27  *
  28  * @ingroup SpecialPage
  29  * @author Rob Church <robchur@gmail.com>
  30  */
  31 abstract class ImageQueryPage extends QueryPage {
  32         /**
  33          * Format and output report results using the given information plus
  34          * OutputPage
  35          *
  36          * @param OutputPage $out OutputPage to print to
  37          * @param Skin $skin User skin to use [unused]
  38          * @param DatabaseBase $dbr (read) connection to use
  39          * @param int $res Result pointer
  40          * @param int $num Number of available result rows
  41          * @param int $offset Paging offset
  42          */
  43         protected function outputResults( $out, $skin, $dbr, $res, $num, $offset ) {
  44                 if ( $num > 0 ) {
  45                         $gallery = new ImageGallery();
  46
  47                         # $res might contain the whole 1,000 rows, so we read up to
  48                         # $num [should update this to use a Pager]
  49                         for ( $i = 0; $i < $num && $row = $dbr->fetchObject( $res ); $i++ ) {
  50                                 $namespace = isset( $row->namespace ) ? $row->namespace : NS_FILE;
  51                                 $title = Title::makeTitleSafe( $namespace, $row->title );
  52                                 if ( $title instanceof Title && $title->getNamespace() == NS_FILE ) {
  53                                         $gallery->add( $title, $this->getCellHtml( $row ) );
  54                                 }
  55                         }
  56
  57                         $out->addHTML( $gallery->toHtml() );
  58                 }
  59         }
  60
  61         // Gotta override this since it's abstract
  62         function formatResult( $skin, $result ) { }
  63
  64         /**
  65          * Get additional HTML to be shown in a results' cell
  66          *
  67          * @param object $row Result row
  68          * @return string
  69          */
  70         protected function getCellHtml( $row ) {
  71                 return '';
  72         }
  73 }