Added an admin setting to show/hide the emoji picker in messaging
because some versions of MySQL don't have full unicode support so
emojis won't save in the dabase.
If we detect that the site is running an unsupported version of MySQL
then the setting can not be enabled. Instead the admin will see a
message explaining that they will need to upgrade their database
before they can enable the emoji picker.
It is possible that before this patch the user blocked a
teacher from messaging them, even though this would have
no effect. It is also possible for a user to block a user,
then that user gets 'promoted' to a teacher role and the
block becoming ineffective. In these cases we dont show the
user's status as blocked.
If blocking will have no effect (ie. you are attempting to block
the admin) the 'Block' button will not be shown and instead a
message will be shown explaining why you can not block the user.
We previously had this page when contact requests were first introduced
and unfortunately we created a bunch of notifications that reference
this URL directly which now won't work because the page has been removed.
I've added it back but set it to redirect to the message/index.php page
and load the contact requests page there.
Instead of creating all the self-conversations during the upgrading,
some code has been added to the get_conversations and to the
get_conversation_counts to create it whe it doesn't exist.
Two modes of visibility checking are supported, depending on the value
of the 'messagingallusers' site setting (site-wide messaging):
- If site-wide messaging is enabled, a user may only be returned in
search results if the searching user can view their profile somewhere
(either the site profile or any course profile).
- If site-wide messaging is disabled, a user may only be returned in
search results if the searching user shares a course with them and can
view their course profile in the shared course.
Added new MESSAGE_CONVERSATION_TYPE_SELF type for self-conversations
and upgraded legacy self-conversations to the new type, removing
repeated members in the message_conversation_members table.
Besides, from now, a self-conversation will be created by default for
all the existing users.
All the self-conversations have been also starred and a default message
will be displayed always to explain how to use them.
The other renderables in the same namespace are still used by
deprecated web services. Once we do the final deprecation of
those web services they will be removed - see MDL-63261.
