protected function add_response_declaration(ImsQtiWriter $item, $question)
{
$result = parent::add_response_declaration($item, $question);
$correct_response = $result->add_correctResponse();
$mapping = $result->add_mapping();
foreach ($question->options->answers as $answer) {
$identifier = $answer->answer;
if ($is_correct = $answer->fraction == 1) {
$correct_response->add_value($identifier);
}
$mapping->add_mapEntry($identifier, $answer->fraction * $question->defaultgrade);
}
return $result;
}
public function __construct($target_root)
{
parent::__construct($target_root);
}
protected function create_serializer($question)
{
return QuestionSerializer::factory($question, 'resources');
}
protected function add_modal_feedback(ImsQtiWriter $item, $question)
{
$result = parent::add_modal_feedback($item, $question);
$this->add_overall_feedback($item, $question);
return $result;
}
/**
* Returns data to be serialized on top of the QTI format.
* Made of the question's object minus fields that don't have a meaning in another system.
*
* Remove question's fields which don't have a meaning in another system.
* For example question id, user id, etc
*
* @param object $question
* @return object
*/
protected function get_question_data($question)
{
$result = parent::get_question_data($question);
return $result;
}
