/**
* Add a PendingResponse object to the store.
*
* @param \qtism\runtime\tests\PendingResponses $pendingResponses
*/
public function addPendingResponses(PendingResponses $pendingResponses)
{
$map = $this->getAssessmentItemRefMap();
$itemRef = $pendingResponses->getAssessmentItemRef();
if (isset($map[$itemRef]) === false) {
$map[$itemRef] = array();
}
$entry = $map[$itemRef];
$entry[$pendingResponses->getOccurence()] = $pendingResponses;
$map[$itemRef] = $entry;
$this->getAllPendingResponses()->attach($pendingResponses);
}
/**
* Write a PendingResponses object in the current binary stream.
*
* @param AssessmentTestSeeker $seeker An AssessmentTestSeeker object from where positions in the assessmentTest tree will be pulled out.
* @param PendingResponses $pendingResponses The read PendingResponses object.
* @throws QtiBinaryStreamAccessException
*/
public function writePendingResponses(AssessmentTestSeeker $seeker, PendingResponses $pendingResponses)
{
try {
$state = $pendingResponses->getState();
$itemRef = $pendingResponses->getAssessmentItemRef();
$occurence = $pendingResponses->getOccurence();
// Write the state.
$responseDeclarations = $itemRef->getResponseDeclarations();
$varCount = count($state);
$this->writeTinyInt($varCount);
foreach ($state as $responseVariable) {
$respId = $responseVariable->getIdentifier();
if (isset($responseDeclarations[$respId]) === true) {
$this->writeShort($seeker->seekPosition($responseDeclarations[$respId]));
$this->writeVariableValue($responseVariable);
} else {
$msg = "No response variable with identifier '{$respId}' found in related assessmentItemRef.";
throw new QtiBinaryStreamAccessException($msg, $this, QtiBinaryStreamAccessException::PENDING_RESPONSES);
}
}
// Write the assessmentItemRef.
$this->writeShort($seeker->seekPosition($itemRef));
// Write the occurence number.
$this->writeTinyInt($occurence);
} catch (BinaryStreamAccessException $e) {
$msg = "An error occured while reading some pending responses.";
throw new QtiBinaryStreamAccessException($msg, $this, QtiBinaryStreamAccessException::PENDING_RESPONSES, $e);
} catch (OutOfBoundsException $e) {
$msg = "A QTI component position could not be found in the assessmentTest tree structure.";
throw new QtiBinaryStreamAccessException($msg, $this, QtiBinaryStreamAccessException::PENDING_RESPONSES, $e);
}
}
