/**
* Reads data for an event.
* @param [String => Mixed] $opts
* @return [String => Mixed]
* @override AttemtStarted
*/
public function read(array $opts)
{
$end = (new \DateTime())->setTimestamp($opts['attempt']->timestart);
$start = (new \DateTime())->setTimestamp($opts['attempt']->timefinish);
$duration = date_diff($start, $end)->format('P%YY%MM%DDT%HH%IM%SS');
return array_merge(parent::read($opts), ['recipe' => 'attempt_completed', 'attempt_result' => (double) ($opts['attempt']->sumgrades ?: 0), 'attempt_completed' => $opts['attempt']->state === 'finished', 'attempt_duration' => $duration]);
}
/**
* Reads data for an event.
* @param [String => Mixed] $opts
* @return [String => Mixed]
* @override AttemtStarted
*/
public function read(array $opts)
{
$translatorevents = [];
// Push question statements to $translatorevents['events'].
foreach ($opts['attempt']->questions as $questionId => $questionAttempt) {
array_push($translatorevents, $this->questionStatement(parent::read($opts)[0], $questionAttempt, $opts['questions'][$questionAttempt->questionid]));
}
return $translatorevents;
}
/**
* Reads data for an event.
* @param [String => Mixed] $opts
* @return [String => Mixed]
* @override AttemtStarted
*/
public function read(array $opts)
{
$seconds = $opts['attempt']->timefinish - $opts['attempt']->timestart;
$duration = "PT" . (string) $seconds . "S";
$scoreRaw = (double) ($opts['attempt']->sumgrades ?: 0);
$scoreMin = (double) ($opts['grade_items']->grademin ?: 0);
$scoreMax = (double) ($opts['grade_items']->grademax ?: 0);
$scorePass = (double) ($opts['grade_items']->gradepass ?: null);
$success = false;
//if there is no passing score then success is unknown.
if ($scorePass == null) {
$success = null;
} elseif ($scoreRaw >= $scorePass) {
$success = true;
}
//Calculate scaled score as the distance from zero towards the max (or min for negative scores).
$scoreScaled;
if ($scoreRaw >= 0) {
$scoreScaled = $scoreRaw / $scoreMax;
} else {
$scoreScaled = $scoreRaw / $scoreMin;
}
return [array_merge(parent::read($opts)[0], ['recipe' => 'attempt_completed', 'attempt_score_raw' => $scoreRaw, 'attempt_score_min' => $scoreMin, 'attempt_score_max' => $scoreMax, 'attempt_score_scaled' => $scoreScaled, 'attempt_success' => $success, 'attempt_completed' => $opts['attempt']->state === 'finished', 'attempt_duration' => $duration])];
}
/**
* Reads data for an event.
* @param [String => Mixed] $opts
* @return [String => Mixed]
* @override Event
*/
public function read(array $opts)
{
return array_merge(parent::read($opts), ['verb' => ['id' => 'http://adlnet.gov/expapi/verbs/completed', 'display' => $this->readVerbDisplay($opts)], 'result' => ['score' => ['raw' => $opts['attempt_result']], 'completion' => $opts['attempt_completed'], 'duration' => $opts['attempt_duration']]]);
}