FEATURE: New site setting to ensure flags are claimed

assets/javascripts/discourse-assign/connectors/flagged-post-below-controls/show-not-assigned.hbs

@@ -1,12 +1,20 @@
 {{#unless canAct}}
-  {{#if flaggedPost.topic.assigned_to_user}}
-    <div class='cant-act-flagged-post'>
-      <div class='cant-act-message'>
-        {{i18n "discourse_assign.cant_act"}}
+  {{#if actableFilter}}
+    {{#if flaggedPost.topic.assigned_to_user}}
+      <div class='cant-act-flagged-post'>
+        <div class='cant-act-message'>
+          {{i18n "discourse_assign.cant_act"}}
+        </div>
+        <div class='assigned-to'>
+          {{assigned-to user=flaggedPost.topic.assigned_to_user}}
+        </div>
       </div>
-      <div class='assigned-to'>
-        {{assigned-to user=flaggedPost.topic.assigned_to_user}}
+    {{else}}
+      <div class='cant-act-flagged-post'>
+        <div class='cant-act-message'>
+          {{i18n "discourse_assign.cant_act_unclaimed"}}
+        </div>
       </div>
-    </div>
+    {{/if}}
   {{/if}}
 {{/unless}}

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

@@ -40,13 +40,26 @@ function modifySelectKit(api) {
 function initialize(api) {
   // You can't act on flags claimed by another user
   api.modifyClass('component:flagged-post', {
-    @computed('flaggedPost.topic.assigned_to_user_id', 'filter')
-    canAct(assignedToUserId, filter) {
-      if (this.siteSettings.assign_locks_flags && assignedToUserId && this.currentUser.id !== assignedToUserId) {
-        return false;
+    @computed('flaggedPost.topic.assigned_to_user_id')
+    canAct(assignedToUserId) {
+      let { siteSettings } = this;
+
+      if (siteSettings.assign_locks_flags) {
+
+        let unassigned = (this.currentUser.id !== assignedToUserId);
+
+        // Can never act on another user's flags
+        if (assignedToUserId && unassigned) {
+          return false;
+        }
+
+        // If flags require assignment
+        if (this.siteSettings.flags_require_assign && unassigned) {
+          return false;
+        }
       }
 
-      return this._super(filter);
+      return this.get('actableFilter');
     },
 
     didInsertElement() {

config/locales/client.en.yml

@@ -5,6 +5,7 @@ en:
       unassigned: "unassigned %{who} %{when}"
     discourse_assign:
       cant_act: "You cannot act on flags that have been assigned to other users"
+      cant_act_unclaimed: "You must claim this topic before acting on flags."
       assigned: "Assigned"
       assigned_to: "Assigned to"
       assign_notification: "<i title='assigned' class='fa fa-user-plus'></i><p><span>{{username}}</span> {{description}}</p>"

config/locales/server.en.yml

@@ -11,11 +11,13 @@ en:
     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"
     assign_mailer_enabled: "When enabled, the assigned user will receive a notification email on each assignment"
+    flags_require_assign: "When enabled, flags cannot be handled unless assigned to a user."
   discourse_assign:
     assigned_to: "Topic assigned to @%{username}"
     unassigned: "Topic was unassigned"
     already_claimed: "That topic has already been claimed."
-    flag_assigned: "Sorry, flag's topic is assigned to another user"
+    flag_assigned: "Sorry, that flag's topic is assigned to another user"
+    flag_unclaimed: "You must claim that topic before acting on the flag"
   assign_mailer:
     title: "Assign Mailer"
     subject_template: "[%{email_prefix}] %{assignee_name} assigned you to '%{topic_title}'!"

config/settings.yml

@@ -15,4 +15,7 @@ plugins:
   assign_locks_flags:
     default: true
     client: true
+  flags_require_assign:
+    default: false
+    client: true
   assign_mailer_enabled: false

plugin.rb

@@ -21,6 +21,7 @@ after_initialize do
   # 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
@@ -30,8 +31,15 @@ after_initialize do
               custom_message: 'discourse_assign.flag_assigned'
             )
           end
+        elsif SiteSetting.flags_require_assign?
+          raise Discourse::InvalidAccess.new(
+            "Flags must be assigned before they can be acted on",
+            nil,
+            custom_message: 'discourse_assign.flag_unclaimed'
+          )
         end
       end
+
     end
   end