FIX: missing post and topic edited webhooks

app/models/web_hook.rb

@@ -40,10 +40,14 @@ class WebHook < ActiveRecord::Base
     end
   end
 
-  def self.enqueue_topic_hooks(event, topic, user)
+  def self.enqueue_topic_hooks(event, topic, user=nil)
     WebHook.enqueue_hooks(:topic, topic_id: topic.id, user_id: user&.id, category_id: topic&.category&.id, event_name: event.to_s)
   end
 
+  def self.enqueue_post_hooks(event, post, user=nil)
+    WebHook.enqueue_hooks(:post, post_id: post.id, topic_id: post&.topic&.id, user_id: user&.id, category_id: post&.topic&.category_id, event_name: event.to_s)
+  end
+
   %i(topic_destroyed topic_recovered).each do |event|
     DiscourseEvent.on(event) do |topic, user|
       WebHook.enqueue_topic_hooks(event, topic, user)
@@ -57,18 +61,16 @@ class WebHook < ActiveRecord::Base
   %i(post_created
      post_destroyed
      post_recovered).each do |event|
-
     DiscourseEvent.on(event) do |post, _, user|
-      WebHook.enqueue_hooks(:post,
-        post_id: post.id,
-        topic_id: post&.topic&.id,
-        user_id: user&.id,
-        category_id: post.topic&.category&.id,
-        event_name: event.to_s
-      )
+      WebHook.enqueue_post_hooks(event, post, user)
     end
   end
 
+  DiscourseEvent.on(:post_edited) do |post, topic_changed|
+    WebHook.enqueue_post_hooks(:post_edited, post)
+    WebHook.enqueue_topic_hooks(:topic_edited, post.topic) if post.is_first_post? && topic_changed
+  end
+
   %i(user_created user_approved).each do |event|
     DiscourseEvent.on(event) do |user|
       WebHook.enqueue_hooks(:user, user_id: user.id, event_name: event.to_s)

lib/post_revisor.rb

@@ -446,6 +446,7 @@ class PostRevisor
   def post_process_post
     @post.invalidate_oneboxes = true
     @post.trigger_post_process
+    DiscourseEvent.trigger(:post_edited, @post, self.topic_changed?)
   end
 
   def update_topic_word_counts

spec/models/web_hook_spec.rb

@@ -120,14 +120,14 @@ describe WebHook do
     end
 
     it 'should enqueue the right hooks for post events' do
-      user # bypass a user_created event
-      WebHook.expects(:enqueue_hooks).once
+      WebHook.expects(:enqueue_post_hooks).once
       PostCreator.create(user, { raw: 'post', topic_id: topic.id, reply_to_post_number: 1, skip_validations: true })
 
-      WebHook.expects(:enqueue_hooks).once
+      # post destroy or recover triggers a moderator post
+      WebHook.expects(:enqueue_post_hooks).twice
       PostDestroyer.new(user, post2).destroy
 
-      WebHook.expects(:enqueue_hooks).once
+      WebHook.expects(:enqueue_post_hooks).twice
       PostDestroyer.new(user, post2).recover
     end