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   1  <?php
   2  
   3  // This file keeps track of upgrades to
   4  // the data module
   5  //
   6  // Sometimes, changes between versions involve
   7  // alterations to database structures and other
   8  // major things that may break installations.
   9  //
  10  // The upgrade function in this file will attempt
  11  // to perform all the necessary actions to upgrade
  12  // your older installation to the current version.
  13  //
  14  // If there's something it cannot do itself, it
  15  // will tell you what you need to do.
  16  //
  17  // The commands in here will all be database-neutral,
  18  // using the methods of database_manager class
  19  //
  20  // Please do not forget to use upgrade_set_timeout()
  21  // before any action that may take longer time to finish.
  22  
  23  function xmldb_data_upgrade($oldversion) {
  24      global $CFG, $DB, $OUTPUT;
  25  
  26      $dbman = $DB->get_manager();
  27  
  28  
  29      // Moodle v2.2.0 release upgrade line
  30      // Put any upgrade step following this
  31  
  32      // Moodle v2.3.0 release upgrade line
  33      // Put any upgrade step following this
  34  
  35      if ($oldversion < 2012112901) {
  36          // Check if there is a directory containing any old presets.
  37          $olddatadir = $CFG->dataroot . '/data';
  38          $oldpresetdir = "$olddatadir/preset";
  39          if (file_exists($oldpresetdir)) {
  40              // Get directory contents.
  41              $userfolders = new DirectoryIterator($oldpresetdir);
  42              // Store the system context, these are site wide presets.
  43              $context = context_system::instance();
  44              // Create file storage object.
  45              $fs = get_file_storage();
  46              // Create array of accepted files.
  47              $arracceptedfilenames = array('singletemplate.html', 'listtemplateheader.html', 'listtemplate.html',
  48                                            'listtemplatefooter.html', 'addtemplate.html', 'rsstemplate.html',
  49                                            'rsstitletemplate.html', 'csstemplate.css', 'jstemplate.js',
  50                                            'asearchtemplate.html', 'preset.xml');
  51              // Loop through all the folders, they should represent userids.
  52              foreach ($userfolders as $userfolder) {
  53                  // If it is a file, skip it.
  54                  if ($userfolder->isFile()) {
  55                      continue;
  56                  }
  57                  // The folder name should represent the user id.
  58                  $userid = $userfolder->getFilename();
  59                  // Skip if it is not numeric.
  60                  if (!is_numeric($userid)) {
  61                      continue;
  62                  }
  63                  // Skip if the number does not correspond to a user (does not matter if user was deleted).
  64                  if (!$DB->record_exists('user', array('id' => $userid))) {
  65                      continue;
  66                  }
  67                  // Open this folder.
  68                  $presetfolders = new DirectoryIterator("$oldpresetdir/$userid");
  69                  foreach ($presetfolders as $presetfolder) {
  70                      // If it is a file, skip it.
  71                      if ($presetfolder->isFile()) {
  72                          continue;
  73                      }
  74                      // Save the name of the preset.
  75                      $presetname = $presetfolder->getFilename();
  76                      // Get the files in this preset folder.
  77                      $presetfiles = new DirectoryIterator("$oldpresetdir/$userid/$presetname");
  78                      // Now we want to get the contents of the presets.
  79                      foreach ($presetfiles as $file) {
  80                          // If it is not a file, skip it.
  81                          if (!$file->isFile()) {
  82                              continue;
  83                          }
  84                          // Set the filename.
  85                          $filename = $file->getFilename();
  86                          // If it is not in the array of accepted file names skip it.
  87                          if (!in_array($filename, $arracceptedfilenames)) {
  88                              continue;
  89                          }
  90                          // Store the full file path.
  91                          $fullfilepath = "$oldpresetdir/$userid/$presetname/$filename";
  92                          // Create file record.
  93                          $filerecord = array('contextid' => $context->id,
  94                                              'component' => 'mod_data',
  95                                              'filearea' => 'site_presets',
  96                                              'itemid' => 0,
  97                                              'filename' => $filename,
  98                                              'userid' => $userid);
  99                          // Check to ensure it does not already exists in the file directory.
 100                          if (!$fs->file_exists($context->id, 'mod_data', 'site_presets', 0, '/' . $presetfolder . '/', $filename)) {
 101                              $filerecord['filepath'] = '/' . $presetfolder . '/';
 102                          } else {
 103                              $filerecord['filepath'] = '/' . $presetfolder . '_' . $userid . '_old/';
 104                          }
 105                          $fs->create_file_from_pathname($filerecord, $fullfilepath);
 106                          // Remove the file.
 107                          @unlink($fullfilepath);
 108                      }
 109                      // Remove the preset directory.
 110                      @rmdir("$oldpresetdir/$userid/$presetname");
 111                  }
 112                  // Remove the user directory.
 113                  @rmdir("$oldpresetdir/$userid");
 114              }
 115              // Remove the final directories.
 116              @rmdir("$oldpresetdir");
 117              @rmdir("$olddatadir");
 118          }
 119  
 120          upgrade_mod_savepoint(true, 2012112901, 'data');
 121      }
 122  
 123      // Moodle v2.4.0 release upgrade line
 124      // Put any upgrade step following this
 125  
 126  
 127      // Moodle v2.5.0 release upgrade line.
 128      // Put any upgrade step following this.
 129  
 130  
 131      // Moodle v2.6.0 release upgrade line.
 132      // Put any upgrade step following this.
 133  
 134      // Moodle v2.7.0 release upgrade line.
 135      // Put any upgrade step following this.
 136  
 137      // Moodle v2.8.0 release upgrade line.
 138      // Put any upgrade step following this.
 139  
 140      return true;
 141  }
 142  
 143