Merge pull request #2718 from riking/plugin-events

FEATURE: Add a plugin callback when editing a post

lib/post_revisor.rb

@@ -23,13 +23,18 @@ class PostRevisor
 
     # TODO this is not in a transaction - dangerous!
     return false unless should_revise?
-    @post.acting_user = @editor
-    revise_post
-    update_category_description
-    update_topic_excerpt
-    post_process_post
-    update_topic_word_counts
-    @post.advance_draft_sequence
+
+    Post.transaction do
+      @post.acting_user = @editor
+      revise_post
+      plugin_callbacks
+      update_category_description
+      update_topic_excerpt
+      post_process_post
+      update_topic_word_counts
+      @post.advance_draft_sequence
+    end
+
     PostAlerter.new.after_save_post(@post)
     @post.publish_change_to_clients! :revised
     BadgeGranter.queue_badge_grant(Badge::Trigger::PostRevision, post: @post)
@@ -51,6 +56,11 @@ class PostRevisor
     end
   end
 
+  def plugin_callbacks
+    DiscourseEvent.trigger :before_edit_post, @post
+    DiscourseEvent.trigger :validate_post, @post
+  end
+
   def get_revised_at
     @opts[:revised_at] || Time.now
   end