Followup to d66115d918
* Makes sure the `actor_preferences` all initialize with an empty array instead of nil if there are no preferences e.g. the actor is not ignoring anyone
* If the actor has disabled all PMs make `actor_disallowing_pms?` always return true
This commit introduces several fine-grained methods
to UserCommScreener which can be used to show the actor
who they are ignoring/muting/blocking DMs from in order
to prevent them initiating conversation with those users
or to display relevant information in the UI to the
actor.
This will be used in a companion PR in discourse-chat,
and is a follow up to 74584ff3ca
Co-authored-by: Alan Guo Xiang Tan <gxtan1990@gmail.com>
Co-authored-by: Osama Sayegh <asooomaasoooma90@gmail.com>
Fixes edge case from fa5f3e228c.
In case the acting user is sent in with the target_user_ids,
we do not need to load those preferences, because even if the
acting user is preventing PMs or muting etc they need to always be able to
send themselves messages.
It makes more sense to use user_ids for the UserCommScreener
introduced in fa5f3e228c since
in most cases the ID will be available, not the username. This
was discovered while starting work on a plugin that will
use this. In the cases where only usernames are available
the extra query is negligble.
The idea behind this refactor is to centralise all of the user ignoring / muting / disallow PM checks in a single place, so they can be used consistently in core as well as for plugins like chat, while improving the main bulk of the checks to run in a single fast non-AR query.
Also fixed up the invite error when someone is muting/ignoring the user that is trying to invite them to the topic.
