includes/actions/PurgeAction.php

   1 <?php
   2 /**
   3  * Formats credits for articles
   4  *
   5  * Copyright 2004, Evan Prodromou <evan@wikitravel.org>.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * @file
  22  * @ingroup Actions
  23  * @author <evan@wikitravel.org>
  24  */
  25
  26 class PurgeAction extends FormAction {
  27
  28         public function getName() {
  29                 return 'purge';
  30         }
  31
  32         public function getRestriction() {
  33                 return null;
  34         }
  35
  36         public function requiresUnblock() {
  37                 return false;
  38         }
  39
  40         public function getDescription() {
  41                 return '';
  42         }
  43
  44         /**
  45          * Just get an empty form with a single submit button
  46          * @return array
  47          */
  48         protected function getFormFields() {
  49                 return array();
  50         }
  51
  52         public function onSubmit( $data ) {
  53                 $this->page->doPurge();
  54                 return true;
  55         }
  56
  57         /**
  58          * purge is slightly wierd because it can be either formed or formless depending
  59          * on user permissions
  60          */
  61         public function show() {
  62                 $this->setHeaders();
  63
  64                 // This will throw exceptions if there's a problem
  65                 $this->checkCanExecute( $this->getUser() );
  66
  67                 if ( $this->getUser()->isAllowed( 'purge' ) ) {
  68                         $this->onSubmit( array() );
  69                         $this->onSuccess();
  70                 } else {
  71                         $form = $this->getForm();
  72                         if ( $form->show() ) {
  73                                 $this->onSuccess();
  74                         }
  75                 }
  76         }
  77
  78         protected function alterForm( HTMLForm $form ) {
  79                 $form->setSubmitText( wfMsg( 'confirm_purge_button' ) );
  80         }
  81
  82         protected function preText() {
  83                 return wfMessage( 'confirm-purge-top' )->parse();
  84         }
  85
  86         protected function postText() {
  87                 return wfMessage( 'confirm-purge-bottom' )->parse();
  88         }
  89
  90         public function onSuccess() {
  91                 $this->getOutput()->redirect( $this->getTitle() );
  92         }
  93 }