FIX: Missing topic edited web hook when publishing a topic.

app/controllers/topics_controller.rb

@@ -299,6 +299,7 @@ class TopicsController < ApplicationController
 
     if params[:category_id] && (params[:category_id].to_i != topic.category_id.to_i)
       category = Category.find_by(id: params[:category_id])
+
       if category || (params[:category_id].to_i == 0)
         guardian.ensure_can_move_topic_to_category!(category)
       else

lib/topic_publisher.rb

@@ -8,12 +8,15 @@ class TopicPublisher
 
   def publish!
     published_at = Time.zone.now
+
     TopicTimestampChanger.new(timestamp: published_at, topic: @topic).change! do
       if @topic.private_message?
         @topic = TopicConverter.new(@topic, @published_by)
           .convert_to_public_topic(@category_id)
       else
-        @topic.change_category_to_id(@category_id)
+        PostRevisor.new(@topic.first_post, @topic).revise!(@published_by,
+          category_id: @category_id,
+        )
       end
 
       @topic.update_columns(visible: true)
@@ -22,14 +25,17 @@ class TopicPublisher
 
       # Clean up any publishing artifacts
       SharedDraft.where(topic: @topic).delete_all
+
       TopicTimer.where(topic: @topic).update_all(
         deleted_at: DateTime.now,
         deleted_by_id: @published_by.id
       )
 
       op = @topic.first_post
+
       if op.present?
         op.revisions.delete_all
+
         op.update_columns(
           version: 1,
           public_version: 1,

spec/components/topic_publisher_spec.rb

@@ -34,10 +34,12 @@ describe TopicPublisher do
           expect(topic.created_at).to eq(published_at)
           expect(topic.updated_at).to eq(published_at)
           expect(topic.shared_draft).to be_blank
+
           expect(UserHistory.where(
             acting_user_id: moderator.id,
             action: UserHistory.actions[:topic_published]
           )).to be_present
+
           op.reload
 
           # Should delete any edits on the OP

spec/models/web_hook_spec.rb

@@ -173,6 +173,24 @@ describe WebHook do
         payload = JSON.parse(job_args["payload"])
         expect(payload["id"]).to eq(topic_id)
       end
+
+      category = Fabricate(:category)
+
+      expect do
+        PostRevisor.new(post, post.topic).revise!(
+          post.user,
+          {
+            category_id: category.id,
+          }
+        )
+      end.to change { Jobs::EmitWebHookEvent.jobs.length }.by(1)
+
+      job_args = Jobs::EmitWebHookEvent.jobs.last["args"].first
+
+      expect(job_args["event_name"]).to eq("topic_edited")
+      payload = JSON.parse(job_args["payload"])
+      expect(payload["id"]).to eq(topic_id)
+      expect(payload["category_id"]).to eq(category.id)
     end
 
     describe 'when topic has been deleted' do