public function process_finish(question_attempt_pending_step $pendingstep)
{
if ($this->qa->get_state()->is_finished()) {
return question_attempt::DISCARD;
}
$prevtries = $this->qa->get_last_behaviour_var('_try', 0);
$prevbest = $this->qa->get_fraction();
if (is_null($prevbest)) {
$prevbest = 0;
}
$laststep = $this->qa->get_last_step();
$response = $laststep->get_qt_data();
if (!$this->question->is_gradable_response($response)) {
$state = question_state::$gaveup;
$fraction = 0;
} else {
if ($laststep->has_behaviour_var('_try')) {
// Last answer was graded, we want to regrade it. Otherwise the answer
// has changed, and we are grading a new try.
// There is a Moodle bug here, resulting in regrading of
// already-graded questions.
// See https://tracker.moodle.org/browse/MDL-42399
$prevtries -= 1;
}
// *** changed bit #2 begins ***
// Cache extra data from grade response.
$gradedata = $this->question->grade_response($response);
list($fraction, $state) = $gradedata;
if (count($gradedata) > 2) {
foreach ($gradedata[2] as $name => $value) {
$pendingstep->set_qt_var($name, $value);
}
}
// *** end of changed bit #2 ***
$pendingstep->set_behaviour_var('_try', $prevtries + 1);
$pendingstep->set_behaviour_var('_rawfraction', $fraction);
$pendingstep->set_new_response_summary($this->question->summarise_response($response));
}
$pendingstep->set_state($state);
$pendingstep->set_fraction(max($prevbest, $this->adjusted_fraction($fraction, $prevtries)));
return question_attempt::KEEP;
}
