optionally apply a regex to post body when assigning stuff out

config/locales/server.en.yml

@@ -4,6 +4,8 @@ en:
     assigns_user_url_path: "Path to link all user links for assigned (use: {username} to subtitue username)"
     assigns_by_staff_mention: "If a staff member mentions another staff member, topic is automatically assigned"
     unassign_creates_tracking_post: "If you unassign a topic a whisper or small action will be created to track change"
+    assign_self_regex: "Regex that needs to pass for self assign. Example 'my list'"
+    assign_other_regex: "Regex that needs to pass for assigning topics to others via mention. Example 'your list'."
   discourse_assign:
     assigned_to: "Topic assigned to @%{username}"
     unassigned: "Topic was unassigned"

config/settings.yml

@@ -2,6 +2,8 @@ plugins:
   assigns_by_staff_mention: false
   unassign_creates_tracking_post: true
   assigns_public: false
+  assign_self_regex: ""
+  assign_other_regex: ""
   assigns_user_url_path:
     client: true
     default: "/latest?assigned={username}"

plugin.rb

@@ -45,14 +45,36 @@ SQL
       puts "#{assigned} topics where automatically assigned to staff members"
     end
 
+    def self.assign_self_passes?(post)
+      return false unless SiteSetting.assign_self_regex.present?
+      regex = Regexp.new(SiteSetting.assign_self_regex) rescue nil
+
+      !!(regex && regex.match(post.raw))
+    end
+
+    def self.assign_other_passes?(post)
+      return true unless SiteSetting.assign_other_regex.present?
+      regex = Regexp.new(SiteSetting.assign_other_regex) rescue nil
+
+      !!(regex && regex.match(post.raw))
+    end
+
     def self.auto_assign(post, force: false)
       return unless SiteSetting.assigns_by_staff_mention
 
       if post.user && post.topic && post.user.staff?
         can_assign = force || post.topic.custom_fields["assigned_to_id"].nil?
-        if can_assign && is_last_staff_post?(post) && user = mentioned_staff(post)
+
+        assign_other = assign_other_passes?(post) && mentioned_staff(post)
+        assign_self = assign_self_passes?(post) && post.user
+
+        if can_assign && is_last_staff_post?(post)
           assigner = new(post.topic, post.user)
-          assigner.assign(user, silent: true)
+          if assign_other
+            assigner.assign(assign_other, silent: true)
+          elsif assign_self
+            assigner.assign(assign_self, silent: true)
+          end
         end
       end
     end