question/export.php

   1 <?php
   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     $PAGE->set_pagelayout('standard');
  17
  18     list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) =
  19             question_edit_setup('export', '/question/export.php');
  20
  21     // get display strings
  22     $strexportquestions = get_string('exportquestions', 'quiz');
  23
  24     // make sure we are using the user's most recent category choice
  25     if (empty($categoryid)) {
  26         $categoryid = $pagevars['cat'];
  27     }
  28
  29     // ensure the files area exists for this course
  30     make_upload_directory("$COURSE->id");
  31     list($catid, $catcontext) = explode(',', $pagevars['cat']);
  32     if (!$category = $DB->get_record("question_categories", array("id" => $catid, 'contextid' => $catcontext))) {
  33         print_error('nocategory','quiz');
  34     }
  35
  36     /// Header
  37     $PAGE->set_url($thispageurl->out());
  38     $PAGE->set_title($strexportquestions);
  39     $PAGE->set_heading($COURSE->fullname);
  40     echo $OUTPUT->header();
  41
  42     $exportfilename = default_export_filename($COURSE, $category);
  43     $export_form = new question_export_form($thispageurl, array('contexts'=>$contexts->having_one_edit_tab_cap('export'), 'defaultcategory'=>$pagevars['cat'],
  44                                     'defaultfilename'=>$exportfilename));
  45
  46
  47     if ($from_form = $export_form->get_data()) {   /// Filename
  48
  49
  50         if (! is_readable("format/$from_form->format/format.php")) {
  51             print_error('unknowformat', '', '', $from_form->format);
  52         }
  53
  54         // load parent class for import/export
  55         require_once("format.php");
  56
  57         // and then the class for the selected format
  58         require_once("format/$from_form->format/format.php");
  59
  60         $classname = "qformat_$from_form->format";
  61         $qformat = new $classname();
  62         $qformat->setContexts($contexts->having_one_edit_tab_cap('export'));
  63         $qformat->setCategory($category);
  64         $qformat->setCourse($COURSE);
  65
  66         if (empty($from_form->exportfilename)) {
  67             $from_form->exportfilename = default_export_filename($COURSE, $category);
  68         }
  69         $qformat->setFilename($from_form->exportfilename);
  70         $canaccessbackupdata = has_capability('moodle/backup:backupcourse', $contexts->lowest());
  71         $qformat->set_can_access_backupdata($canaccessbackupdata);
  72         $qformat->setCattofile(!empty($from_form->cattofile));
  73         $qformat->setContexttofile(!empty($from_form->contexttofile));
  74
  75         if (! $qformat->exportpreprocess()) {   // Do anything before that we need to
  76             print_error('exporterror', 'question', $thispageurl->out());
  77         }
  78
  79         if (! $qformat->exportprocess()) {         // Process the export data
  80             print_error('exporterror', 'question', $thispageurl->out());
  81         }
  82
  83         if (! $qformat->exportpostprocess()) {                    // In case anything needs to be done after
  84             print_error('exporterror', 'question', $thispageurl->out());
  85         }
  86         echo "<hr />";
  87
  88         // link to download the finished file
  89         $file_ext = $qformat->export_file_extension();
  90         $filename = $from_form->exportfilename . $file_ext;
  91         if ($canaccessbackupdata) {
  92             $efile = get_file_url($qformat->question_get_export_dir() . '/' . $filename,
  93                     array('forcedownload' => 1));
  94             echo '<p><div class="boxaligncenter"><a href="' . $efile . '">' .
  95                     get_string('download', 'quiz') . '</a></div></p>';
  96             echo '<p><div class="boxaligncenter"><font size="-1">' .
  97                     get_string('downloadextra', 'quiz') . '</font></div></p>';
  98         } else {
  99             $efile = get_file_url($filename, null, 'questionfile');
 100             echo '<p><div class="boxaligncenter">' .
 101                     get_string('yourfileshoulddownload', 'question', $efile) . '</div></p>';
 102             $PAGE->requires->js_function_call('document.location.replace', array($efile), false, 1);
 103         }
 104
 105         echo $OUTPUT->continue_button(new moodle_url('edit.php', $thispageurl->params()));
 106         echo $OUTPUT->footer();
 107         exit;
 108     }
 109
 110     /// Display export form
 111     echo $OUTPUT->heading_with_help($strexportquestions, 'export', 'quiz');
 112
 113     $export_form->display();
 114
 115     echo $OUTPUT->footer();
 116