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   1  <?php // $Id: unload_xml_file.class.php,v 1.4 2007/10/10 05:25:29 nicolasconnault Exp $
   2  
   3  ///////////////////////////////////////////////////////////////////////////
   4  //                                                                       //
   5  // NOTICE OF COPYRIGHT                                                   //
   6  //                                                                       //
   7  // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   8  //          http://moodle.com                                            //
   9  //                                                                       //
  10  // Copyright (C) 1999 onwards 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 unload one loaded file completely
  28  
  29  class unload_xml_file 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          /// 'key' => 'module',
  42          ));
  43      }
  44  
  45      /**
  46       * Invoke method, every class will have its own
  47       * returns true/false on completion, setting both
  48       * errormsg and output as necessary
  49       */
  50      function invoke() {
  51          parent::invoke();
  52  
  53          $result = true;
  54  
  55      /// Set own core attributes
  56          $this->does_generate = ACTION_NONE;
  57          //$this->does_generate = ACTION_GENERATE_HTML;
  58  
  59      /// These are always here
  60          global $CFG, $XMLDB;
  61  
  62      /// Do the job, setting result as needed
  63  
  64      /// Get the dir containing the file
  65          $dirpath = required_param('dir', PARAM_PATH);
  66          $dirpath = $CFG->dirroot . stripslashes_safe($dirpath);
  67  
  68          /// Get the original dir and delete some elements
  69          if (!empty($XMLDB->dbdirs)) {
  70              if (isset($XMLDB->dbdirs[$dirpath])) {
  71                  $dbdir =& $XMLDB->dbdirs[$dirpath];
  72                  if ($dbdir) {
  73                      unset($dbdir->xml_file);
  74                      unset($dbdir->xml_loaded);
  75                      unset($dbdir->xml_changed);
  76                      unset($dbdir->xml_exists);
  77                      unset($dbdir->xml_writeable);
  78                  }
  79              }
  80          }
  81          /// Get the edited dir and delete it completely
  82          if (!empty($XMLDB->editeddirs)) {
  83              if (isset($XMLDB->editeddirs[$dirpath])) {
  84                  unset($XMLDB->editeddirs[$dirpath]);
  85              }
  86          }
  87  
  88      /// Launch postaction if exists (leave this here!)
  89          if ($this->getPostAction() && $result) {
  90              return $this->launch($this->getPostAction());
  91          }
  92  
  93      /// Return ok if arrived here
  94          return $result;
  95      }
  96  }
  97  ?>