Create an event on epic actions

Creates new event when an epic is created, closed, reopened or
commented.

7 files changed, 19 insertions, 3 deletions

diff --git a/app/models/board.rb b/app/models/board.rb
index 50b6ca9b70f..b5d07f1b282 100644
--- a/app/models/board.rb
+++ b/app/models/board.rb
@@ -19,6 +19,7 @@ class Board < ApplicationRecord
   def parent
     @parent ||= group || project
   end
+  alias_method :resource_parent, :parent
 
   def group_board?
     group_id.present?
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index eefe9f00836..a998d9b7e1b 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -277,6 +277,10 @@ module Issuable
     end
   end
 
+  def resource_parent
+    project
+  end
+
   def milestone_available?
     project_id == milestone&.project_id || project.ancestors_upto.compact.include?(milestone&.group)
   end
diff --git a/app/models/event.rb b/app/models/event.rb
index 392d7368033..52d54be39a9 100644
--- a/app/models/event.rb
+++ b/app/models/event.rb
@@ -51,6 +51,7 @@ class Event < ApplicationRecord
 
   belongs_to :author, class_name: "User"
   belongs_to :project
+  belongs_to :group
 
   belongs_to :target, -> {
     # If the association for "target" defines an "author" association we want to
diff --git a/app/models/milestone.rb b/app/models/milestone.rb
index 101e963ea29..cb87b46a31d 100644
--- a/app/models/milestone.rb
+++ b/app/models/milestone.rb
@@ -260,6 +260,7 @@ class Milestone < ApplicationRecord
   def parent
     group || project
   end
+  alias_method :resource_parent, :parent
 
   def group_milestone?
     group_id.present?
diff --git a/app/models/note.rb b/app/models/note.rb
index ebd13675dc9..0d024b0a25c 100644
--- a/app/models/note.rb
+++ b/app/models/note.rb
@@ -477,6 +477,7 @@ class Note < ApplicationRecord
   def parent
     project
   end
+  alias_method :resource_parent, :parent
 
   private
 
diff --git a/app/models/todo.rb b/app/models/todo.rb
index 1ec04189482..f7f30aed832 100644
--- a/app/models/todo.rb
+++ b/app/models/todo.rb
@@ -146,6 +146,7 @@ class Todo < ApplicationRecord
   def parent
     project
   end
+  alias_method :resource_parent, :parent
 
   def unmergeable?
     action == UNMERGEABLE
diff --git a/app/services/event_create_service.rb b/app/services/event_create_service.rb
index e7464fd9d5f..39266a6c961 100644
--- a/app/services/event_create_service.rb
+++ b/app/services/event_create_service.rb
@@ -95,16 +95,23 @@ class EventCreateService
   private
 
   def create_record_event(record, current_user, status)
-    create_event(record.project, current_user, status, target_id: record.id, target_type: record.class.name)
+    create_event(record.resource_parent, current_user, status, target_id: record.id, target_type: record.class.name)
   end
 
-  def create_event(project, current_user, status, attributes = {})
+  def create_event(resource_parent, current_user, status, attributes = {})
     attributes.reverse_merge!(
-      project: project,
       action: status,
       author_id: current_user.id
     )
 
+    resource_parent_attr = case resource_parent
+                           when Project
+                             :project
+                           when Group
+                             :group
+                           end
+    attributes[resource_parent_attr] = resource_parent if resource_parent_attr
+
     Event.create!(attributes)
   end
 end