Thanks to MDL-49398, we can separate the combined user session and role
definition cache clearing function into two separate functions. At the
same time, we want to identify and remove mark_dirty() calls that were
added for role definition changes but were incorrectly left behind.
Change highlights:
- Remove unnecessary mark_dirty() calls performed after
assign_capability(), unassign_capability(), delete_role(),
deleted contexts, brand new contexts
- Move role definition cache clear from the user-centric
accesslib_clear_all_caches() to the newly created,
role-dedicated accesslib_reset_role_cache()
Also deprecated the following functions -
1. message_move_userfrom_unread2read - It is not necessary
for us to mark a message as read on user deletion.
2. message_get_blocked_users - Horrible logic used to
determine if a user is blocked via reference on some
randomly chosen 'isblocked' variable.
3. message_get_contacts - The same as above. This can be
done in a much nicer way.
4. message_mark_message_read - We want two functions to do
this to avoid confusing messages and notifications.
5. message_can_delete_message - This assumed the variable
$message contained the 'useridto' property, which
was present in the old table structure. We do not want
future usages where a query is done on the new table
and is simply passed as this won't contain this property.
6. message_delete_message - Same as above.
If there was no conversation found and the method returned early, the
active transaction was not marked as committable and the error was
reported by the request shutdown handler.
Attaching a unit test for the case just because it did not seem to be
covered. I was trying to reproduce the thrown error in the unit test but
it can't be used in this case. The shutdown handler puts the warning
directly into the error_log and it is not guaranteed where such messages
go (depending on the PHP configuration). And we do not even raise it
during the unit test execution (presumably due to noise it would
produce) anyway.
- No longer use the Fibonacci sequence for delaying the timeout.
It is too aggressive.
- The backoff_timer AMD module now expects the callback AND the
backoff function to be passed to the constructor.
- Added ability to specify polling frequency in config.php.
- Added helper function to return the cache key.
- Reworded the parameters for clarity.
Also -
1) Made note of the deprecation as well as the functions and
files that were removed earlier in upgrade.txt.
2) Added new functions to api.php to replace the deprecated ones
that were being used in unit tests.
3) Removed files that are no longer being used.
