This combines the following changes:
* Event for group member added
* Event for group member removed
* Event for group created
* Event for grouping created
* Event for group updated
* Event for grouping updated
* Event for group deleted
* Event for grouping deleted
* Adding tests for deleting functions
* Bulk remove of members uses low-level API
The reason for this is that a bulk event has no value from a logging
perspective as it is not granular. So now, the API is a bit slower,
but the information the events contain makes sense, beside this is
not (and should not be) used very often.
The reason why the events_trigger_legacy() is kept is because we
cannot create a new event for this, as we don't encourage developers
to created bulk events, for the reasons mentioned above.
I removed the call that gets the user record from the function
groups_remove_member() as it was not required and only appeared
to check if the user existed. It appears to be safe not to do
this check as nothing would fail down the line.
* Bulk unassign of groupings uses low-level API
As the previous commit, we keep the legacy event for now as it would
be wrong to create a new event to replace it.
Also, the code has been changed to call the low-level API to unassign
groups from groupins, even though at the moment there are no
events for that function.
* Bulk deletion of groups uses low-level API
Again, we keep the legacy event because replacing it would force
us to create a new event that does not make sense. See MDL-41312.
* Bulk deleting of groupings uses low-level API
* Asserting legacy event name in unit tests
* Minor SQL query and code improvements
This commit moves user agent related functionality out of several
core libraries and combines it into a more manageable class.
All core uses are converted and functions deprecated in favor
of the new class.
This issue makes several fixes for the session loader and the session store.
* maxsize argument now works for session caches.
* fixed performance hole when interation occurs frequently.
* fixed cache purge bug occuring when multiple caches are defined before being used.
* improved lastaccess handling.
Big thanks to Marina who contributed the following commits:
* Always make sure the elements in cache are sorted so we need to remove only elements in the beginning of array
* Remove expired elements from session store to free memory
* Minor bug fixes
grade_item_update was altering the userid in the submission record
instead of cloning it. This meant only the last member of a group
recieved all notifications meant for other students in the group.
MDL-38162 fixes the issue about testing the connection to the memcached
daemon, which means testing once the connection to the pool of servers
and not to each of the servers while being added to the pool.
It misses to move the comment to that code too.
