FIX: Close topics deleted by users and ensure topic stubs are destroyed. (#7430)

app/assets/javascripts/discourse/lib/transform-post.js.es6

@@ -227,8 +227,8 @@ export default function transformPost(
   }
 
   if (postAtts.post_number === 1) {
-    postAtts.canRecoverTopic = topic.deleted_at && details.can_recover;
+    postAtts.canRecoverTopic = postAtts.isDeleted && details.can_recover;
-    postAtts.canDeleteTopic = !topic.deleted_at && details.can_delete;
+    postAtts.canDeleteTopic = !postAtts.isDeleted && details.can_delete;
     postAtts.expandablePost = topic.expandable_first_post;
   } else {
     postAtts.canRecover = postAtts.isDeleted && postAtts.canRecover;

lib/post_destroyer.rb

@@ -22,7 +22,7 @@ class PostDestroyer
             WHERE t.deleted_at IS NOT NULL AND
                   t.id = posts.topic_id
         )")
-      .where("updated_at < ? AND post_number > 1", SiteSetting.delete_removed_posts_after.hours.ago)
+      .where("updated_at < ?", SiteSetting.delete_removed_posts_after.hours.ago)
       .where("NOT EXISTS (
                   SELECT 1
                   FROM post_actions pa
@@ -176,6 +176,7 @@ class PostDestroyer
       Post.transaction do
         @post.update_column(:user_deleted, true)
         @post.topic_links.each(&:destroy)
+        @post.topic.update_column(:closed, true) if @post.is_first_post?
       end
     end
   end
@@ -186,6 +187,7 @@ class PostDestroyer
     Post.transaction do
       @post.update_column(:user_deleted, false)
       @post.skip_unique_check = true
+      @post.topic.update_column(:closed, false) if @post.is_first_post?
     end
 
     # has internal transactions, if we nest then there are some very high risk deadlocks

spec/components/post_destroyer_spec.rb

@@ -52,6 +52,16 @@ describe PostDestroyer do
   end
 
   describe 'destroy_old_stubs' do
+    it 'destroys stubs for deleted by user topics' do
+      SiteSetting.delete_removed_posts_after = 24
+
+      PostDestroyer.new(post.user, post).destroy
+      post.update_column(:updated_at, 2.days.ago)
+
+      PostDestroyer.destroy_stubs
+      expect(post.reload.deleted_at).not_to eq(nil)
+    end
+
     it 'destroys stubs for deleted by user posts' do
       SiteSetting.delete_removed_posts_after = 24
       Fabricate(:admin)