/**
* Analyse responses for an array of questions or sub questions.
*
* @param object[] $questions as returned by self::load_and_initialise_questions_for_calculations.
* @param qubaid_condition $qubaids the question usages whose responses to analyse.
* @param string $whichtries which tries to analyse \question_attempt::FIRST_TRY, LAST_TRY or ALL_TRIES.
* @param null|\core\progress\base $progress Used to indicate progress of task.
* @param int[] $done array keys are ids of questions that have been analysed before calling method.
* @return array array keys are ids of questions that were analysed after this method call.
*/
protected function analyse_responses_for_questions($questions, $qubaids, $whichtries, $progress = null, $done = array())
{
$countquestions = count($questions);
if (!$countquestions) {
return array();
}
if ($progress === null) {
$progress = new \core\progress\none();
}
$progress->start_progress('', $countquestions, $countquestions);
foreach ($questions as $question) {
$progress->increment_progress();
if (question_bank::get_qtype($question->qtype, false)->can_analyse_responses() && !isset($done[$question->id])) {
$responesstats = new \core_question\statistics\responses\analyser($question, $whichtries);
if ($responesstats->get_last_analysed_time($qubaids, $whichtries) === false) {
$responesstats->calculate($qubaids, $whichtries);
}
}
$done[$question->id] = 1;
}
$progress->end_progress();
return $done;
}
protected function analyse_responses_for_all_questions_and_subquestions($qubaids, $questions, $subquestionstats)
{
$done = array();
foreach ($questions as $question) {
if (!question_bank::get_qtype($question->qtype, false)->can_analyse_responses()) {
continue;
}
$done[$question->id] = 1;
$responesstats = new \core_question\statistics\responses\analyser($question);
$responesstats->calculate($qubaids);
}
foreach ($subquestionstats as $subquestionstat) {
if (!question_bank::get_qtype($subquestionstat->question->qtype, false)->can_analyse_responses() || isset($done[$subquestionstat->question->id])) {
continue;
}
$done[$subquestionstat->question->id] = 1;
$responesstats = new \core_question\statistics\responses\analyser($subquestionstat->question);
$responesstats->calculate($qubaids);
}
}
