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         private $redirectParams;
  29
  30         public function getName() {
  31                 return 'purge';
  32         }
  33
  34         public function getRestriction() {
  35                 return null;
  36         }
  37
  38         public function requiresUnblock() {
  39                 return false;
  40         }
  41
  42         public function getDescription() {
  43                 return '';
  44         }
  45
  46         /**
  47          * Just get an empty form with a single submit button
  48          * @return array
  49          */
  50         protected function getFormFields() {
  51                 return array();
  52         }
  53
  54         public function onSubmit( $data ) {
  55                 $this->page->doPurge();
  56                 return true;
  57         }
  58
  59         /**
  60          * purge is slightly weird because it can be either formed or formless depending
  61          * on user permissions
  62          */
  63         public function show() {
  64                 $this->setHeaders();
  65
  66                 // This will throw exceptions if there's a problem
  67                 $this->checkCanExecute( $this->getUser() );
  68
  69                 if ( $this->getUser()->isAllowed( 'purge' ) ) {
  70                         $this->redirectParams = wfArrayToCGI( array_diff_key(
  71                                 $this->getRequest()->getQueryValues(),
  72                                 array( 'title' => null, 'action' => null )
  73                         ) );
  74                         $this->onSubmit( array() );
  75                         $this->onSuccess();
  76                 } else {
  77                         $this->redirectParams = $this->getRequest()->getVal( 'redirectparams', '' );
  78                         $form = $this->getForm();
  79                         if ( $form->show() ) {
  80                                 $this->onSuccess();
  81                         }
  82                 }
  83         }
  84
  85         protected function alterForm( HTMLForm $form ) {
  86                 $form->setSubmitText( wfMsg( 'confirm_purge_button' ) );
  87         }
  88
  89         protected function preText() {
  90                 return wfMessage( 'confirm-purge-top' )->parse();
  91         }
  92
  93         protected function postText() {
  94                 return wfMessage( 'confirm-purge-bottom' )->parse();
  95         }
  96
  97         public function onSuccess() {
  98                 $this->getOutput()->redirect( $this->getTitle()->getFullUrl( $this->redirectParams ) );
  99         }
 100 }