public static function extract_archive($archive_path, $to_path = '')
{
$to_path = empty($to_path) ? MoodleUtil::create_temp_directory() : $to_path;
$zipper = new zip_packer();
if ($zipper->extract_to_pathname($archive_path, $to_path)) {
return $to_path;
} else {
return false;
}
}
public function process_archive($filename, $realfilename)
{
if ($this->is_archive($realfilename)) {
if ($this->base_temp = MoodleUtil::extract_archive($filename)) {
$result = $this->process_directory($this->base_temp);
} else {
$result = false;
}
} else {
$result = $this->process_file($filename);
}
return $result;
}
protected function add_assessment_item(ImsQtiWriter $writer, $question)
{
$identifier = self::question_identifier($question);
$lang = MoodleUtil::get_current_language();
$label = $question->qtype;
$toolname = self::get_tool_name();
$toolversion = Qti::get_tool_version();
$result = $writer->add_assessmentItem($identifier, $question->name, true, false, $label, $lang, $toolname, $toolversion);
return $result;
}
protected function add_question_metadata(ImsXmlWriter $item, $question)
{
$result = $item->add_metadata('lom', '1.0');
$lom = new LomWriter($result, 'lom');
$general = $lom->add_general();
$general->add_title($question->name);
$general->add_identifier(MoodleUtil::get_catalog_name(), $question->id);
$lifecycle = $lom->add_lifecycle();
$lifecycle->add_status();
return $result;
}
protected function answer($percent, $text, $feedback)
{
$feedback = $this->html_to_text($feedback);
$text = $this->html_to_text($text);
$percent = MoodleUtil::round_to_nearest_grade($percent);
$percent = $percent * 100;
$result = "%{$percent}%{$text}#{$feedback}";
return $result;
}
protected function get_fraction($item, $interaction, $answer, $default_grade)
{
$default_grade = empty($default_grade) ? 1 : $default_grade;
$score = $this->get_score($item, $interaction, $answer);
$result = MoodleUtil::round_to_nearest_grade($score / $default_grade);
return $result;
}