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