Tim Hunt

Note that, while I was visiting Moodle HQ a couple of weeks ago, I was able to sit down the Sam Hemelryk and implement caching of question definitions using the new caching system. This should make a bit improvement to quiz performance, but we have not actually done any testing to prove this yet. See MDL-34399 for more details. Note that this has been integrated, so this will be included in Moodle 2.4 when it is realeased.

If anyone can do any performance testing on this, that would be really helpful.

There is also admin/tool/replace. This is only semi-supported, so it does not show up in the admin menu (I think) but you can type the URL directly. (It is described on http://docs.moodle.org/23/en/Moodle_migration#Migrating_a_complete_Moodle_site_-_method_1)

Well, to have a realistic chance of implementing this, you need to be able to dive into the code and work out what is going on your own (at least to a certain extend. You can still ask for help here, but you will get on much quicker if you can work most things out for yourself without having to wait for an answer.)

To give you some pointers:

The code that generates this block is split between mod/quiz/attemptlib.php (mainly near the end) and mod/quiz/renderer.php. The code that actually causes it to be included on the attempt and review pages is the line about adding a 'fake' block.

The only definitive list is in the code. The database structure is defined in the files .../db/install.xml in each plugin. If you want to know the differences, diff those files.

Alternatively, look at the changes in the .../db/upgrade.php scripts, which are how Moodle updates itself.

It would be possible to summarise the changes on the wiki, but any such summary would only be approximate, and would take someone time to create.

If you don't want to use text feedback, you might be able to hide the comment field using some CSS in your theme.

Also, someone else suggested that it was not necessary to keep repeating the question text. That was a good idea, but would require changing more than just CSS.

The most similar related bug is MDL-31581.