moodle/moodle
3
0
Fork 0
mirror of https://github.com/moodle/moodle.git synced 2025-08-04 16:36:37 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge branch 'MDL-76649' of https://github.com/timhunt/moodle

Browse source
This commit is contained in:
Jun Pataleta 2023-01-12 12:06:35 +08:00
commit e0d857f39f
4 changed files with 73 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

64
mod/quiz/report/statistics/classes/task/recalculate.php
View file

@ -36,21 +36,33 @@ require_once($CFG->dirroot . '/mod/quiz/report/statistics/report.php');
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class recalculate extends \core\task\scheduled_task {
/** @var int the maximum length of time one instance of this task will run. */
const TIME_LIMIT = 3600;
public function get_name() {
public function get_name(): string {
return get_string('recalculatetask', 'quiz_statistics');
}
public function execute() {
public function execute(): void {
global $DB;
$stoptime = time() + self::TIME_LIMIT;
$dateformat = get_string('strftimedatetimeshortaccurate', 'core_langconfig');
// TODO: MDL-75197, add quizid in quiz_statistics so that it is simpler to find quizzes for stats calculation.
// Only calculate stats for quizzes which have recently finished attempt.
$sql = "
SELECT qa.quiz, MAX(qa.timefinish) as timefinish
SELECT q.id AS quizid,
q.name AS quizname,
c.id AS courseid,
c.shortname AS courseshortname,
MAX(qa.timefinish) AS mostrecentattempttime,
COUNT(1) AS numberofattempts
FROM {quiz_attempts} qa
JOIN {quiz} q ON q.id = qa.quiz
JOIN {course} c ON c.id = q.course
WHERE qa.preview = 0
AND qa.state = :quizstatefinished
GROUP BY qa.quiz
GROUP BY q.id, q.name, c.id, c.shortname
";
$params = [
@ -59,30 +71,50 @@ class recalculate extends \core\task\scheduled_task {
$latestattempts = $DB->get_records_sql($sql, $params);
$anyexception = null;
foreach ($latestattempts as $attempt) {
if (time() >= $stoptime) {
mtrace("This task has been running for more than " .
format_time(self::TIME_LIMIT) . " so stopping this execution.");
break;
}
mtrace(" Examining quiz '$attempt->quizname' ($attempt->quizid) in course " .
"$attempt->courseshortname ($attempt->courseid) with most recent attempt at " .
userdate($attempt->mostrecentattempttime, $dateformat) . ".");
$quizobj = quiz_settings::create($attempt->quiz);
$quiz = $quizobj->get_quiz();
// Hash code for question stats option in question bank.
$qubaids = quiz_statistics_qubaids_condition($quiz->id, new \core\dml\sql_join(), $quiz->grademethod);
// Check if there is any existing question stats, and it has been calculated after latest quiz attempt.
$records = $DB->get_records_select(
'quiz_statistics',
'hashcode = :hashcode AND timemodified > :timefinish',
[
'hashcode' => $qubaids->get_hash_code(),
'timefinish' => $attempt->timefinish
]
);
$lateststatstime = $DB->get_field('quiz_statistics', 'COALESCE(MAX(timemodified), 0)',
['hashcode' => $qubaids->get_hash_code()]);
if (empty($records)) {
if ($lateststatstime >= $attempt->mostrecentattempttime) {
mtrace(" Statistics already calculated at " . userdate($lateststatstime, $dateformat) .
" so nothing to do for this quiz.");
continue;
}
mtrace(" Calculating statistics for $attempt->numberofattempts attempts, starting at " .
userdate(time(), $dateformat) . " ...");
try {
$report = new quiz_statistics_report();
// Clear old cache.
$report->clear_cached_data($qubaids);
// Calculate new stats.
$report->calculate_questions_stats_for_question_bank($quiz->id);
mtrace(" Calculations completed at " . userdate(time(), $dateformat) . ".");
} catch (\Throwable $e) {
// We don't want an exception from one quiz to stop processing of other quizzes.
mtrace_exception($e);
$anyexception = $e;
}
}
return true;
if ($anyexception) {
// If there was any error, ensure the task fails.
throw $anyexception;
}
}
}