Trying to get property 'id' of non-object

Trying to get property 'id' of non-object

by what what -
Number of replies: 4

Hi everyone,

Moodle 3.7.2

I am getting below errors with PHP occasionally, from all enrol options.
It happens only when the administrator is navigating through Administration Page.
All lines below will have "student->id" on these lines.


Anyone encountered this issue?


[25-Dec-2019 10:30:39 America/New_York] PHP Notice:  Trying to get property 'id' of non-object in /var/www/html/moodle/enrol/cohort/settings.php on line 39

[25-Dec-2019 10:30:39 America/New_York] PHP Notice:  Trying to get property 'id' of non-object in /var/www/html/moodle/enrol/database/settings.php on line 89

[25-Dec-2019 10:30:39 America/New_York] PHP Notice:  Trying to get property 'id' of non-object in /var/www/html/moodle/enrol/manual/settings.php on line 66

[25-Dec-2019 10:30:39 America/New_York] PHP Notice:  Trying to get property 'id' of non-object in /var/www/html/moodle/enrol/mnet/settings.php on line 39

[25-Dec-2019 10:30:39 America/New_York] PHP Notice:  Trying to get property 'id' of non-object in /var/www/html/moodle/enrol/paypal/settings.php on line 69

Average of ratings: -
In reply to what what

Re: Trying to get property 'id' of non-object

by Leon Stringer -
Picture of Core developers Picture of Particularly helpful Moodlers

I think the Moodle site has the default role "Student" removed. Check Site administration → Users → Define roles and see if it's there.

Role list

Some enrolment plugins use the student role as their default so when this is missing the errors listed will occur.

I think this is a bug, i.e. using a value as default that it's possible to delete, so I've reported MDL-67614.

I think it's a little obscure to delete the default roles. Do you know why this was done?

Average of ratings: -
In reply to Leon Stringer

Re: Trying to get property 'id' of non-object

by Dorian C -
Thanks for replying Leon,

Student role is there.
Average of ratings: -
In reply to Dorian C

Re: Trying to get property 'id' of non-object

by Leon Stringer -
Picture of Core developers Picture of Particularly helpful Moodlers

Maybe the student role doesn't have the archetype student.

From the Site administration → Users → Define roles page, click edit (⚙) for "Student". On the "Editing role 'Student'" page what does the Role archetype field say? This should be the fourth field down.

Role archetype for Student

Average of ratings: Useful (1)
In reply to Leon Stringer

Re: Trying to get property 'id' of non-object

by Dorian C -
Thanks Leon, that seems to work!

Appreciate your help.
Average of ratings: -