Adding 1000+ students to examiner fails

[torgeirl]

Our larges courses have started to exceed 1000 students, an unforeseeable number in the early days of Devilry's development cycle.

Steps to reproduce

• create an assignments with 1000+ students
• add an examiner
• Manage examiners > select one examiner OR click Bulk-organize examiners (both will fail)
• select or add all students to the examiner(s)
• Bad Request (400)

Workaround

• manually add N-997 students to the examiner(s)
• then bulk add the last 997 students

Solutions a. Give an error when an admin tries to add 1000+ students to an examiner b. Re-write function to only select 997 students when selecting all c. Re-write function to work with 1000+ students.

[torgeirl]

I naively assumed the magic number was 1000 (four digit), but I have been able to reproduce the issue with as «few» as 998 students. 997 students seems to work.