/**
* Action called when a QTI Item embedded in a QTI Test submit responses.
*
*/
public function storeItemVariableSet()
{
if ($this->beforeAction()) {
// --- Deal with provided responses.
$jsonPayload = taoQtiCommon_helpers_Utils::readJsonPayload();
$responses = new State();
$currentItem = $this->getTestSession()->getCurrentAssessmentItemRef();
$currentOccurence = $this->getTestSession()->getCurrentAssessmentItemRefOccurence();
if ($currentItem === false) {
$msg = "Trying to store item variables but the state of the test session is INITIAL or CLOSED.\n";
$msg .= "Session state value: " . $this->getTestSession()->getState() . "\n";
$msg .= "Session ID: " . $this->getTestSession()->getSessionId() . "\n";
$msg .= "JSON Payload: " . mb_substr(json_encode($jsonPayload), 0, 1000);
common_Logger::e($msg);
}
$filler = new taoQtiCommon_helpers_PciVariableFiller($currentItem);
if (is_array($jsonPayload)) {
foreach ($jsonPayload as $id => $response) {
try {
$var = $filler->fill($id, $response);
// Do not take into account QTI File placeholders.
if (taoQtiCommon_helpers_Utils::isQtiFilePlaceHolder($var) === false) {
$responses->setVariable($var);
}
} catch (OutOfRangeException $e) {
common_Logger::d("Could not convert client-side value for variable '{$id}'.");
} catch (OutOfBoundsException $e) {
common_Logger::d("Could not find variable with identifier '{$id}' in current item.");
}
}
} else {
common_Logger::e('Invalid json payload');
}
$displayFeedback = $this->getTestSession()->getCurrentSubmissionMode() !== SubmissionMode::SIMULTANEOUS;
$stateOutput = new taoQtiCommon_helpers_PciStateOutput();
try {
common_Logger::i('Responses sent from the client-side. The Response Processing will take place.');
$this->getTestSession()->endAttempt($responses, true);
// Return the item session state to the client side.
$itemSession = $this->getTestSession()->getAssessmentItemSessionStore()->getAssessmentItemSession($currentItem, $currentOccurence);
foreach ($itemSession->getAllVariables() as $var) {
$stateOutput->addVariable($var);
}
$itemCompilationDirectory = $this->getDirectory($this->getRequestParameter('itemDataPath'));
$jsonReturn = array('success' => true, 'displayFeedback' => $displayFeedback, 'itemSession' => $stateOutput->getOutput(), 'feedbacks' => array());
if ($displayFeedback === true) {
$jsonReturn['feedbacks'] = QtiRunner::getFeedbacks($itemCompilationDirectory, $itemSession);
}
echo json_encode($jsonReturn);
} catch (AssessmentTestSessionException $e) {
$this->handleAssessmentTestSessionException($e);
}
$this->afterAction(false);
}
}
protected function getFeedbacks(AssessmentItemSession $itemSession)
{
$dir = $this->getDirectory($this->getRequestParameter('itemDataPath'));
return QtiRunner::getFeedbacks($dir, $itemSession);
}
/**
* Get the feedback to be displayed on an AssessmentItemSession
*
* @param tao_models_classes_service_StorageDirectory $directory
* @param \qtism\runtime\tests\AssessmentItemSession $itemSession
* @return array
*/
public static function getFeedbacks(tao_models_classes_service_StorageDirectory $directory, AssessmentItemSession $itemSession)
{
$returnValue = array();
$feedbackClasses = array('modalFeedback', 'feedbackInline', 'feedbackBlock');
$elements = self::getContentVariableElements($directory);
$outcomes = array();
foreach ($elements as $data) {
if (empty($data['qtiClass']) === false && in_array($data['qtiClass'], $feedbackClasses)) {
$feedbackIdentifier = $data['attributes']['identifier'];
$outcomeIdentifier = $data['attributes']['outcomeIdentifier'];
if (!isset($outcomes[$outcomeIdentifier])) {
$outcomes[$outcomeIdentifier] = array();
}
$outcomes[$outcomeIdentifier][$feedbackIdentifier] = $data;
}
}
foreach ($itemSession->getAllVariables() as $var) {
$identifier = $var->getIdentifier();
if (isset($outcomes[$identifier])) {
$feedbacks = $outcomes[$identifier];
$feedbackIds = QtiRunner::getVariableValues($var);
foreach ($feedbackIds as $feedbackId) {
if (isset($feedbacks[$feedbackId])) {
$data = $feedbacks[$feedbackId];
$returnValue[$data['serial']] = $data;
}
}
}
}
return $returnValue;
}
