Tim Hunt

There is a setting that should be tweaked, and we are already tweaking it correctly. In the inner loop in the regrade report we are calling set_time_limit. That should be sufficient. It is really weird that the 500 error is overwriting the stuff that was already output. That is a real pain! Actually, I think there is a setting in IE to stop it doing that.

Turn on debugging and that should show you an error message instead of a blank page.

Looking at this, it seems you have duplicated a subset of attempt.php, which is a reasonable way to cook up an addition like this. And the code looks reasonable on a quick reading.

Duplicated code like this will, of course, be a maintenance headache in future - but then we should come up with a proper solution for this whole issues in Moodle 2.0.

It would be useful to hear how you get on with these changes. Does it work flawlessly, or are there still subtleties that are not covered. Knowing whether your code works will be really helpful when I get around to adding this to Moodle 2.0.

You seem to be on the right track. I assume you are attempting the quiz yourself using your web browser, then looking in the database to see what data Moodle created, and then making your script create the same sort of data.

That should work.

Have you also checked what is going on in the mdl_question_sessions table? You need to set the newest and newgraded columns.

What about repairing or checking the mdl_question_sessions table, since that is the one mentioned in the error message.