It should always be the case that a question category and its parent
category belong to the same context. However, over the years, we have
observed that this becomes violated by some data in some Moodle sites.
(The suspicion is that this is a backup/restor bug of some sort which
has never been tracked down.)
Since this happens, we should make the code robust to it, which is what
this change does. It ensure that when loading child categories, we only
consider ones in the same context.
* The object returned by update_question is alwasy a new clone
and the $question passed in will not be modified.
* The returned object has the fields like questionbankentryid and
the ones related to versionning, so it is more like the data
returned by question_bank::load_question_data.
This commit implements the status change pop up for a question
in the base view. This feature update will allow the change of
status of a question without creating a new version.
This commit also implements the status as a char rather than
an int value.
The versioning changes will require some major changes
in the backup and restore of question bank and its
elements. This change introduces those changes to make
it compatible with the new world of versioning in question
bank. This commit also removes quiz_slots fields and
quiz_slot_tags table.
This commit will also introduce the versioning db
structure and some major changes to the quiz
and quiz attempts for the question, random
question and the view.
This commit implements the behat changes for versioning
in core question and associated locations.
This commit adds the changes in questiontype base
to work with new question tables and the new structure in the
databse. Also needed for versioning.
This implementation will also introduct the question status
which allows a question to be in draft and ready status.
I also introduces changes to the base view where it shows
the latest version of the questions. The view of versions
for a question is not implemented in this commit.
This implementation will also introduce changes in the core
qtype plugins to support versioning and the changed
db schema.
This commit implements the qbank api so that any plugin
can implement its own question bank. This api currently
works parallely with the moodle core classes and the
added qbank in the core, means the moment a plugin
is installed, that object is replaced with the object
from the plugin instead of core, which means the api
has flexibility till the plugins are integrated and the
plugins can be integrated in any order.
All the old classes are still there and not deprecated
as there is a different tracker for the changes to the
quiz and another tracker for class deprecation and
class renaming. Core question units tests are pointing
to the new api structure but the classes are pointing
to the location related to the plugin availability.
Co-Authored-By: Luca Bösch <luca.boesch@bfh.ch>
Co-Authored-By: Guillermo Gomez Arias <guillermogomez@catalyst-au.net>
one more array fix
Added an upgrade step to remove duplicate stamps, added a unique index
on (contextid, stamp) and modified the question_category edit code such
that stamp duplication in the same context is not permitted.
1. Autosave works in some ways just like a normal save. We ultimately
call $behaviour->process_save() to do the work, and create a new step to
hold the data.
2. However, we come in through a completely different route through the
API, starting with separate auto-save methods. This keeps the auto-save
changes mostly separate, and so reduced the chance of breaking existing
working code.
3. When the time comes to store the auto-save step in the database, we
save it using a negative sequence number.
This is a clever trick that not only distinguises these steps, but also
avoids unique key errors when an auto-save and a real action happen
simultaneously. (There are unit tests for these tricky edge cases.)
4. When we load the data back from the database, most of the time the
auto-save steps are loaded back as if they were a real save, and so the
auto-saved data is used when the question is then rendered.
5. However, before we process another action, we remove the auto-saved
step, so it does not appear in the final history.
Tim Hunt