Add new messaging profile preferences to allow users to choose who
can message them:
- By default, users can select between 'My contacts only' and 'My
contacts and anyone in my courses'
- When $CFG->messagingallusers is enabled, a new option is displayed
also: 'Anyone on the site'. For users who have selected this option,
if $CFG->messagingallusers is disabled, the behaviour will be changed
to 'My contacts and anyone in my courses'
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.
- 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.
Changed the messaging API to allow you to provide a parameter
that will cause the code to check if the sender of the message
has the correct permissions before the message is sent.
The ajax messaging (message button on profile page) has been
updated to perform these permission checks. This brings it
inline with the existing private message page.
