admin/xmldb/actions/revert_changes/revert_changes.class.php

   1 <?php // $Id$
   2
   3 ///////////////////////////////////////////////////////////////////////////
   4 //                                                                       //
   5 // NOTICE OF COPYRIGHT                                                   //
   6 //                                                                       //
   7 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   8 //          http://moodle.com                                            //
   9 //                                                                       //
  10 // Copyright (C) 2001-3001 Martin Dougiamas        http://dougiamas.com  //
  11 //           (C) 2001-3001 Eloy Lafuente (stronk7) http://contiento.com  //
  12 //                                                                       //
  13 // This program is free software; you can redistribute it and/or modify  //
  14 // it under the terms of the GNU General Public License as published by  //
  15 // the Free Software Foundation; either version 2 of the License, or     //
  16 // (at your option) any later version.                                   //
  17 //                                                                       //
  18 // This program is distributed in the hope that it will be useful,       //
  19 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  20 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  21 // GNU General Public License for more details:                          //
  22 //                                                                       //
  23 //          http://www.gnu.org/copyleft/gpl.html                         //
  24 //                                                                       //
  25 ///////////////////////////////////////////////////////////////////////////
  26
  27 /// This class will revert changes (delete the editeddb)
  28
  29 class revert_changes extends XMLDBAction {
  30
  31     /**
  32      * Init method, every subclass will have its own
  33      */
  34     function init() {
  35         parent::init();
  36
  37     /// Set own custom attributes
  38
  39     /// Get needed strings
  40         $this->loadStrings(array(
  41             'confirmrevertchanges' => 'xmldb',
  42             'yes' => '',
  43             'no' => ''
  44         ));
  45     }
  46
  47     /**
  48      * Invoke method, every class will have its own
  49      * returns true/false on completion, setting both
  50      * errormsg and output as necessary
  51      */
  52     function invoke() {
  53         parent::invoke();
  54
  55         $result = true;
  56
  57     /// Set own core attributes
  58         $this->does_generate = ACTION_GENERATE_HTML;
  59
  60     /// These are always here
  61         global $CFG, $XMLDB;
  62
  63     /// Do the job, setting result as needed
  64
  65     /// Get the dir containing the file
  66         $dirpath = required_param('dir', PARAM_PATH);
  67         $dirpath = $CFG->dirroot . stripslashes_safe($dirpath);
  68
  69         $confirmed = optional_param('confirmed', false, PARAM_BOOL);
  70
  71     /// If  not confirmed, show confirmation box
  72         if (!$confirmed) {
  73             $o = '<table width="60" class="generalbox boxaligncenter" border="0" cellpadding="5" cellspacing="0" id="notice">';
  74             $o.= '  <tr><td class="generalboxcontent">';
  75             $o.= '    <p class="centerpara">' . $this->str['confirmrevertchanges'] . '<br /><br />' . $dirpath . '</p>';
  76             $o.= '    <table class="boxaligncenter" cellpadding="20"><tr><td>';
  77             $o.= '      <div class="singlebutton">';
  78             $o.= '        <form action="index.php?action=revert_changes&amp;confirmed=yes&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '&amp;postaction=main_view#lastused" method="post"><fieldset class="invisiblefieldset">';
  79             $o.= '          <input type="submit" value="'. $this->str['yes'] .'" /></fieldset></form></div>';
  80             $o.= '      </td><td>';
  81             $o.= '      <div class="singlebutton">';
  82             $o.= '        <form action="index.php?action=main_view#lastused" method="post"><fieldset class="invisiblefieldset">';
  83             $o.= '          <input type="submit" value="'. $this->str['no'] .'" /></fieldset></form></div>';
  84             $o.= '      </td></tr>';
  85             $o.= '    </table>';
  86             $o.= '  </td></tr>';
  87             $o.= '</table>';
  88
  89             $this->output = $o;
  90         } else {
  91         /// Get the original dir and delete some elements
  92             if (!empty($XMLDB->dbdirs)) {
  93                 if (isset($XMLDB->dbdirs[$dirpath])) {
  94                     $dbdir =& $XMLDB->dbdirs[$dirpath];
  95                     if ($dbdir) {
  96                         unset($dbdir->xml_changed);
  97                     }
  98                 }
  99             }
 100         /// Get the edited dir and delete it completely
 101             if (!empty($XMLDB->editeddirs)) {
 102                 if (isset($XMLDB->editeddirs[$dirpath])) {
 103                     unset($XMLDB->editeddirs[$dirpath]);
 104                 }
 105             }
 106         }
 107
 108     /// Launch postaction if exists (leave this here!)
 109         if ($this->getPostAction() && $result) {
 110             return $this->launch($this->getPostAction());
 111         }
 112
 113     /// Return ok if arrived here
 114         return $result;
 115     }
 116 }
 117 ?>