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   1  <?php // $Id: export.php,v 1.43.2.4 2008/09/15 14:21:02 thepurpleblob Exp $
   2  /**
   3   * Export quiz questions into the given category
   4   *
   5   * @author Martin Dougiamas, Howard Miller, and many others.
   6   *         {@link http://moodle.org}
   7   * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   8   * @package questionbank
   9   * @subpackage importexport
  10   */
  11  
  12      require_once("../config.php");
  13      require_once ("editlib.php");
  14      require_once ("export_form.php");
  15  
  16      list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) = question_edit_setup('export');
  17  
  18  
  19      // get display strings
  20      $strexportquestions = get_string('exportquestions', 'quiz');
  21  
  22      // make sure we are using the user's most recent category choice
  23      if (empty($categoryid)) {
  24          $categoryid = $pagevars['cat'];
  25      }
  26  
  27      // ensure the files area exists for this course
  28      make_upload_directory("$COURSE->id");
  29      list($catid, $catcontext) = explode(',', $pagevars['cat']);
  30      if (!$category = get_record("question_categories", "id", $catid, 'contextid', $catcontext)) {
  31          print_error('nocategory','quiz');
  32      }
  33  
  34      /// Header
  35      if ($cm!==null) {
  36          $strupdatemodule = has_capability('moodle/course:manageactivities', $contexts->lowest())
  37              ? update_module_button($cm->id, $COURSE->id, get_string('modulename', $cm->modname))
  38              : "";
  39          $navlinks = array();
  40          $navlinks[] = array('name' => get_string('modulenameplural', $cm->modname), 'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$COURSE->id", 'type' => 'activity');
  41          $navlinks[] = array('name' => format_string($module->name), 'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?id={$cm->id}", 'type' => 'title');
  42          $navlinks[] = array('name' => $strexportquestions, 'link' => '', 'type' => 'title');
  43          $navigation = build_navigation($navlinks);
  44          print_header_simple($strexportquestions, '', $navigation, "", "", true, $strupdatemodule);
  45  
  46          $currenttab = 'edit';
  47          $mode = 'export';
  48          ${$cm->modname} = $module;
  49          include($CFG->dirroot."/mod/$cm->modname/tabs.php");
  50      } else {
  51          // Print basic page layout.
  52          $navlinks = array();
  53          $navlinks[] = array('name' => $strexportquestions, 'link' => '', 'type' => 'title');
  54          $navigation = build_navigation($navlinks);
  55  
  56          print_header_simple($strexportquestions, '', $navigation);
  57          // print tabs
  58          $currenttab = 'export';
  59          include ('tabs.php');
  60      }
  61  
  62      $exportfilename = default_export_filename($COURSE, $category);
  63      $export_form = new question_export_form($thispageurl, array('contexts'=>$contexts->having_one_edit_tab_cap('export'), 'defaultcategory'=>$pagevars['cat'],
  64                                      'defaultfilename'=>$exportfilename));
  65  
  66  
  67      if ($from_form = $export_form->get_data()) {   /// Filename
  68  
  69  
  70          if (! is_readable("format/$from_form->format/format.php")) {
  71              error("Format not known ($from_form->format)");
  72          }
  73  
  74          // load parent class for import/export
  75          require_once ("format.php");
  76  
  77          // and then the class for the selected format
  78          require_once("format/$from_form->format/format.php");
  79  
  80          $classname = "qformat_$from_form->format";
  81          $qformat = new $classname();
  82          $qformat->setContexts($contexts->having_one_edit_tab_cap('export'));
  83          $qformat->setCategory($category);
  84          $qformat->setCourse($COURSE);
  85  
  86          if (empty($from_form->exportfilename)) {
  87              $from_form->exportfilename = default_export_filename($COURSE, $category);
  88          }
  89          $qformat->setFilename($from_form->exportfilename);
  90          $canaccessbackupdata = has_capability('moodle/site:backup', $contexts->lowest());
  91          $qformat->set_can_access_backupdata($canaccessbackupdata);
  92          $qformat->setCattofile(!empty($from_form->cattofile));
  93          $qformat->setContexttofile(!empty($from_form->contexttofile));
  94  
  95          if (! $qformat->exportpreprocess()) {   // Do anything before that we need to
  96              print_error('exporterror', 'quiz', $thispageurl->out());
  97          }
  98  
  99          if (! $qformat->exportprocess()) {         // Process the export data
 100              print_error('exporterror', 'quiz', $thispageurl->out());
 101          }
 102  
 103          if (! $qformat->exportpostprocess()) {                    // In case anything needs to be done after
 104              print_error('exporterror', 'quiz', $thispageurl->out());
 105          }
 106          echo "<hr />";
 107  
 108          // link to download the finished file
 109          $file_ext = $qformat->export_file_extension();
 110          $filename = $from_form->exportfilename . $file_ext;
 111          if ($canaccessbackupdata) {
 112              $efile = get_file_url($qformat->question_get_export_dir() . '/' . $filename,
 113                      array('forcedownload' => 1));
 114              echo '<p><div class="boxaligncenter"><a href="' . $efile . '">' .
 115                      get_string('download', 'quiz') . '</a></div></p>';
 116              echo '<p><div class="boxaligncenter"><font size="-1">' .
 117                      get_string('downloadextra', 'quiz') . '</font></div></p>';
 118          } else {
 119              $efile = get_file_url($filename, null, 'questionfile');
 120              echo '<p><div class="boxaligncenter">' .
 121                      get_string('yourfileshoulddownload', 'question', $efile) . '</a></div></p>';
 122              echo '
 123  <script type="text/javascript">
 124  //<![CDATA[
 125  
 126    function redirect() {
 127        document.location.replace("' .  addslashes_js($efile) . '");
 128    }
 129    setTimeout("redirect()", 1000);
 130  //]]>
 131  </script>';
 132          }
 133  
 134          print_continue('edit.php?' . $thispageurl->get_query_string());
 135          print_footer($COURSE);
 136          exit;
 137      }
 138  
 139      /// Display export form
 140      print_heading_with_help($strexportquestions, 'export', 'quiz');
 141  
 142      $export_form->display();
 143  
 144      print_footer($COURSE);
 145  ?>