Blank files downloading from quiz results

Blank files downloading from quiz results

by Robert Hough -
Number of replies: 7
Hello

Having a really weird issue with Quiz Results I hope you can help with. We use Moodle 1.9

The results for each students attempts are shown on the screen when you go into the results tab. This displays the headers for each column and lists the students below with their answers in each column as you would expect.

You then have an option to download them in Excel, text or ODS format. I select all the students and select each one.

When either ODS or Excel format are chosen, the resulting file is completely blank.

When I select Text, I get a file containing only the headers, but no information underneath.

Quite a novice with Moodle and would appreciate some help.

Many thanks
Robert Hough
The Oldham College


Average of ratings: -
In reply to Robert Hough

Re: Blank files downloading from quiz results

by Tim Hunt -
Picture of Core developers Picture of Documentation writers Picture of Particularly helpful Moodlers Picture of Peer reviewers Picture of Plugin developers
Can you turn on Debugging and see whether there is an error message. Thanks.
In reply to Tim Hunt

Re: Blank files downloading from quiz results

by Robert Hough -
Hi Tim, thank you for your quick response.

With debugging on, the following appears in the text file I download.


<br />
<b>Notice</b>: Undefined variable: table in <b>D:\XAMPP\htdocs\mod\quiz\report\overview\report.php</b> on line <b>355</b><br />
<br />
<b>Fatal error</b>: Call to a member function get_sql_sort() on a non-object in <b>D:\XAMPP\htdocs\mod\quiz\report\overview\report.php</b> on line <b>355</b><br />


Line 355 in that php file is:

355 $sort = $table->get_sql_sort();


In reply to Tim Hunt

Re: Blank files downloading from quiz results

by Robert Hough -
Actually, the exact same error message occurs on ODS and Excel downloads too.

Any help or ideas would be greatly appreciated.

Thanks
Rob
In reply to Robert Hough

Re: Blank files downloading from quiz results

by Tim Hunt -
Picture of Core developers Picture of Documentation writers Picture of Particularly helpful Moodlers Picture of Peer reviewers Picture of Plugin developers
Great, that is a nice specific error message. Now we just need to know:

When you say you are using Moodle 1.9, do you mean you are using a fairly recent 1.9.4 build?

If you are, please file this bug in at http://tracker.moodle.org/

If you are using 1.9 or 1.9.1 or something older, we really need to know whether the problem still occurs in a more recent version.
In reply to Tim Hunt

Re: Blank files downloading from quiz results

by Robert Hough -
Hi again

We are running Moodle 1.9.1


In reply to Robert Hough

Re: Blank files downloading from quiz results

by Tim Hunt -
Picture of Core developers Picture of Documentation writers Picture of Particularly helpful Moodlers Picture of Peer reviewers Picture of Plugin developers
Right, this is MDL-15047 which was fixed in Moodle 1.9.2.

The required fix is http://cvs.moodle.org/moodle/mod/quiz/report/overview/report.php?r1=1.98.2.29&r2=1.98.2.30, but it might be a better idea to upgrade to 1.9.4 if you can. Some security issues have been found and fixed recently.
In reply to Tim Hunt

Re: Blank files downloading from quiz results

by Robert Hough -
Thanks Tim !

I did the fix for now, as it was only adding a few lines of code. Works fine now.

We will consider doing an update for the security fixes during the next college break.


Thank you very much for taking time to help me on this.
Rob