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   1  <?php // $Id: load_xml_files.class.php,v 1.3 2007/10/10 05:25:17 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 load every XML file to memory if necessary
  28  
  29  class load_xml_files extends XMLDBAction {
  30  
  31      /**
  32       * Init method, every subclass will have its own
  33       */
  34      function init() {
  35          parent::init();
  36      /// Set own core attributes
  37          $this->can_subaction = ACTION_NONE;
  38          //$this->can_subaction = ACTION_HAVE_SUBACTIONS;
  39  
  40      /// Set own custom attributes
  41  
  42      /// Get needed strings
  43          $this->loadStrings(array(
  44          /// 'key' => 'module',
  45          ));
  46      }
  47  
  48      /**
  49       * Invoke method, every class will have its own
  50       * returns true/false on completion, setting both
  51       * errormsg and output as necessary
  52       */
  53      function invoke() {
  54          parent::invoke();
  55  
  56          $result = true;
  57  
  58      /// Set own core attributes
  59          $this->does_generate = ACTION_NONE;
  60          //$this->does_generate = ACTION_GENERATE_HTML;
  61  
  62      /// These are always here
  63          global $CFG, $XMLDB;
  64  
  65      /// Do the job, setting $result as needed
  66  
  67      /// Iterate over $XMLDB->dbdirs, loading their XML data to memory
  68          if ($XMLDB->dbdirs) {
  69              $dbdirs =& $XMLDB->dbdirs;
  70              foreach ($dbdirs as $dbdir) {
  71              /// Set some defaults
  72                  $dbdir->xml_exists = false;
  73                  $dbdir->xml_writeable = false;
  74                  $dbdir->xml_loaded  = false;
  75              ///Only if the directory exists
  76                  if (!$dbdir->path_exists) {
  77                      continue;
  78                  }
  79                  $xmldb_file = new XMLDBFile($dbdir->path . '/install.xml');
  80              /// Set dbdir as necessary
  81                  if ($xmldb_file->fileExists()) {
  82                      $dbdir->xml_exists = true;
  83                  }
  84                  if ($xmldb_file->fileWriteable()) {
  85                      $dbdir->xml_writeable = true;
  86                  }
  87              /// Load the XML contents to structure
  88                  $loaded = $xmldb_file->loadXMLStructure();
  89                  if ($loaded && $xmldb_file->isLoaded()) {
  90                      $dbdir->xml_loaded = true;
  91                  }
  92                  $dbdir->xml_file = $xmldb_file;
  93              }
  94          }
  95          return $result;
  96      }
  97  }
  98  ?>