Add new SiteSetting to disable locking of flags when assigned

assets/javascripts/discourse-assign/initializers/extend-for-assigns.js.es6

@@ -12,7 +12,7 @@ function initialize(api) {
   api.modifyClass('component:flagged-post', {
     @computed('flaggedPost.topic.assigned_to_user_id', 'filter')
     canAct(assignedToUserId, filter) {
-      if (assignedToUserId && this.currentUser.id !== assignedToUserId) {
+      if (this.siteSettings.assign_locks_flags && assignedToUserId && this.currentUser.id !== assignedToUserId) {
         return false;
       }
 

config/locales/server.en.yml

@@ -9,6 +9,7 @@ en:
     assign_other_regex: "Regex that needs to pass for assigning topics to others via mention. Example 'your list'."
     unassign_on_group_archive: "When a message is archived by a group, unassign message (reassign if moved back to inbox)"
     unassign_on_close: "When a topic is closed unassign topic"
+    assign_locks_flags: "When a topic is assigned to a staff member, its flags can only be handled by that person"
   discourse_assign:
     assigned_to: "Topic assigned to @%{username}"
     unassigned: "Topic was unassigned"

config/settings.yml

@@ -12,3 +12,6 @@ plugins:
   assigns_user_url_path:
     client: true
     default: "/latest?assigned={username}"
+  assign_locks_flags:
+    default: true
+    client: true

plugin.rb

@@ -20,6 +20,7 @@ after_initialize do
   # Raise an invalid access error if a user tries to act on something
   # not assigned to them
   DiscourseEvent.on(:before_staff_flag_action) do |args|
+    if SiteSetting.assign_locks_flags?
       if custom_fields = args[:post].topic.custom_fields
         if assigned_to_id = custom_fields['assigned_to_id']
           unless assigned_to_id.to_i == args[:user].id
@@ -32,6 +33,7 @@ after_initialize do
         end
       end
     end
+  end
 
   TopicList.preloaded_custom_fields << "assigned_to_id"