function qformat_qti2::exportprocess in Quiz 6.5

Same name and namespace in other branches

1. 6.6 includes/moodle/question/format/qti2/format.php \qformat_qti2::exportprocess()

exports the questions in a question category to the given location

The parent class method was overridden because the IMS export consists of multiple files

Parameters

string $filename the directory name which will hold the exported files:

Return value

boolean - or errors out

Overrides qformat_default::exportprocess

File

includes/moodle/question/format/qti2/format.php, line 237

Class

qformat_qti2

Code

function exportprocess() {
  global $CFG;
  $courseid = $this->course->id;

  // create a directory for the exports (if not already existing)
  if (!($export_dir = make_upload_directory($this
    ->question_get_export_dir() . '/' . $this->filename))) {
    error(get_string('cannotcreatepath', 'quiz', $export_dir));
  }
  $path = $CFG->dataroot . '/' . $this
    ->question_get_export_dir() . '/' . $this->filename;

  // get the questions (from database) in this category
  // $questions = get_records("question","category",$this->category->id);
  // HACK FIXME EDIT  a rare edit to the Moodle code
  // why load from category when we already have the questions?
  // $questions = get_questions_category( $this->category );
  $questions = $this->questions;
  notify("Exporting " . count($questions) . " questions.");
  $count = 0;

  // create the imsmanifest file
  $smarty =& $this
    ->init_smarty();
  $this
    ->add_qti_info($questions);

  // copy files used by the main questions to the export directory
  $result = $this
    ->handle_questions_media($questions, $path, $courseid);
  if ($result !== true) {
    notify(implode("<br />", $result));
  }
  $manifestquestions = $this
    ->objects_to_array($questions);
  $manifestid = str_replace(array(
    ':',
    '/',
  ), array(
    '-',
    '_',
  ), "question_category_{$this->category->id}---{$CFG->wwwroot}");
  $smarty
    ->assign('externalfiles', 1);
  $smarty
    ->assign('manifestidentifier', $manifestid);
  $smarty
    ->assign('quiztitle', "question_category_{$this->category->id}");
  $smarty
    ->assign('quizinfo', "All questions in category {$this->category->id}");
  $smarty
    ->assign('questions', $manifestquestions);
  $smarty
    ->assign('lang', $this->lang);
  $smarty->error_reporting = 99;
  $expout = $smarty
    ->fetch('imsmanifest.tpl');
  $filepath = $path . '/imsmanifest.xml';
  if (empty($expout)) {
    error("Unkown error - empty imsmanifest.xml");
  }
  if (!($fh = fopen($filepath, "w"))) {
    error("Cannot open for writing: {$filepath}");
  }
  if (!fwrite($fh, $expout)) {
    error("Cannot write exported questions to {$filepath}");
  }
  fclose($fh);

  // iterate through questions
  foreach ($questions as $question) {

    // results are first written into string (and then to a file)
    $count++;
    echo "<hr /><p><b>{$count}</b>. " . stripslashes($question->questiontext) . "</p>";
    $expout = $this
      ->writequestion($question, null, true, $path) . "\n";
    $expout = $this
      ->presave_process($expout);
    $filepath = $path . '/' . $this
      ->get_assesment_item_id($question) . ".xml";
    if (!($fh = fopen($filepath, "w"))) {
      error("Cannot open for writing: {$filepath}");
    }
    if (!fwrite($fh, $expout)) {
      error("Cannot write exported questions to {$filepath}");
    }
    fclose($fh);
  }

  // zip files into single export file
  print "path: {$path}";
  zip_files(array(
    $path,
  ), "{$path}.zip");

  // FIXME TODO EDIT rare edit to Moodle format code
  // how else am I supposed to know what the filename of the zip is?
  $this->filename = basename($path);

  // remove the temporary directory
  remove_dir($path);
  return true;
}