KumiSystems/moodle-mod_htmlcert
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Do not fail if multiple certificate issues (#295)

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Ignore multiple matches for a user-customcert combo in the customcert_issues table.
In our case, the scheduled task died when:
$issueid = $DB->get_field('customcert_issues', 'id', array('userid' => $enroluser->id, 'customcertid' => $customcert->id));
returned 2 rows, which shouldn't happen, but did anyway.

This means in rare circumstances (i.e. the race condition) the user may get multiple certificates (e.g. one via the UI, one by email) but that is better than not getting one at all and the whole job dying.
This commit is contained in:
mwithheld 2019-06-26 11:46:39 -07:00 committed by Mark Nelson
parent 8f50580173
commit def104602a
1 changed files with 1 additions and 1 deletions
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2
classes/task/email_certificate_task.php
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@ -127,7 +127,7 @@ class email_certificate_task extends \core\task\scheduled_task {
// Ensure the cert hasn't already been issued, e.g via the UI (view.php) - a race condition.
$issueid = $DB->get_field('customcert_issues', 'id',
array('userid' => $enroluser->id, 'customcertid' => $customcert->id));
array('userid' => $enroluser->id, 'customcertid' => $customcert->id), IGNORE_MULTIPLE);
if (empty($issueid)) {
// Ok, issue them the certificate.
$issueid = \mod_customcert\certificate::issue_certificate($customcert->id, $enroluser->id);