[Building Sakai] Assignments Shows Wrong Submission For Student

[Matthew Jones]

I reported this ticket a few days ago, sounds similar:
https://jira.sakaiproject.org/browse/SAK-23247 (When grading students, if
you press the back button, some of the form is incorrect)

I spent about an hour looking at the code and couldn't see where this was
happening. We were just going to add a lock on the back button to avoid it
being used as that was the only way I could reproduce this. It's got to be
something with the state and context not being in sync.

On Tue, Mar 5, 2013 at 12:10 PM, Kevin Pittman <kevin.pittman at oit.gatech.edu
> wrote:

> Has anyone run into the following bug in recent times?
>
>   https://jira.sakaiproject.org/browse/SAK-14937
>
> Something very similar to this has cropped up in our Sakai 2.8 instance.
> In the instructor's view of a particular assignment, the grading page
> for a particular student shows the the submission text of another student
> on a consistant basis.  It's not a case of an overwrite -- the correct
> submission for the first student is present in the database and is
> returned when the Download All function is used - it just isn't being
> pulled correctly for the Grading page.
>
> I tested the behavior on several different app servers in our cluster,
> and it always happens the same way.  It always pulls the same wrong
> submission - nothing random about it, nor is it dependant on the order
> in which submissions are viewed.  The wrong submission pulled is for
> the student who alphabetically comes just before this student, but that
> may not have anything to do with the underlying problem.
>
> I checked the logs and no errors are being thrown when navigating through
> the Assignments tool or its grading pages.
>
> Here's the intersting part - it's not simply a case of Sakai pulling
> the wrong submission record.  Assignments is pulling the feedback field
> from the correct user's submission record and writing it back to the
> correct record.  It's only the submission text itself that's being
> pulled incorrectly.  Does this make any sense to anyone who has worked
> on the Assignments tool?  Does it do weird stuff on the backend and
> pull table fields separately, rather than just pulling an entire user
> submission record in one DB request?
>
> Also of note, the student's view of the assignment submission is shown
> correctly.  It's only the instructor's view that is wrong.
>
> Any ideas on this one?
>
> FYI, we're running the application on Red Hat linux servers with an
> Oracle database.  Also, we're running 2.8 from trunk.
>
> Thanks,
> Kevin
> Georgia Tech Sakai Application Administrator
>
> --
> Kevin Pittman                              kevin.pittman at oit.gatech.edu
> -----------------------------------------------------------------------
> Senior Systems Support Engineer        Office of Information Technology
> Academic and Research Technologies      Georgia Institute of Technology
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