protected function questionViewIsVisible(InquisitionInquisitionQuestionBinding $question_binding)
{
$question_view_visible = true;
// If the question view is dependent on other options, check to make
// sure all dependent options are available and selected.
if (count($question_binding->getDependentOptions()) > 0) {
foreach ($question_binding->getDependentOptions() as $option) {
// Check to make sure the dependent view exists. If
// InquisitionQuestion.enabled has been set to false, it will
// not exist in the available question views.
if (isset($this->question_views[$option['binding']])) {
$view = $this->question_views[$option['binding']];
$values = $view->getResponseValue();
if (!is_array($values)) {
$values = array($values);
}
// If no dependent option is selected then this will
// remain false and the question will not be shown.
$option_selected = false;
foreach ($values as $value) {
$selected = $value->getInternalValue('question_option');
foreach ($option['options'] as $dependent) {
// Only one option per question must be selected
// for the dependecy to be fulfilled.
$option_selected = $selected === $dependent || $option_selected;
}
}
// Each question this question depends on must have one
// of its dependent options selected.
$question_view_visible = $question_view_visible && $option_selected;
}
}
}
return $question_view_visible;
}
protected function getResponseValue(CMEQuiz $quiz, CMEQuizResponse $response, InquisitionInquisitionQuestionBinding $question_binding, $option_id)
{
$response_value = null;
$question_id = $question_binding->getInternalValue('question');
// make sure option is valid for question
$sql = sprintf('select count(1) from InquisitionQuestionOption
where question = %s and id = %s', $this->app->db->quote($question_id, 'integer'), $this->app->db->quote($option_id, 'integer'));
if (SwatDB::queryOne($this->app->db, $sql) === 1) {
// check for existing response
$sql = sprintf('select *
from InquisitionResponseValue
where response = %s and question_binding = %s', $this->app->db->quote($response->id, 'integer'), $this->app->db->quote($question_binding->id, 'integer'));
$wrapper = SwatDBClassMap::get('InquisitionResponseValueWrapper');
$response_value = SwatDB::query($this->app->db, $sql, $wrapper)->getFirst();
// if no existing response, make a new one
if ($response_value === null) {
$class_name = SwatDBClassMap::get('InquisitionResponseValue');
$response_value = new $class_name();
$response_value->setDatabase($this->app->db);
}
// set question option and question
$response_value->question_option = $option_id;
$response_value->question_binding = $question_binding->id;
}
return $response_value;
}