Remove NotesObserver

app/controllers/projects/notes_controller.rb

@@ -21,7 +21,7 @@ class Projects::NotesController < Projects::ApplicationController
   end
   def create
-    @note = Notes::CreateService.new(project, current_user, params).execute
+    @note = Notes::CreateService.new(project, current_user, params[:note]).execute
     respond_to do |format|
       format.json { render_note_json(@note) }

app/models/note.rb

@@ -57,6 +57,7 @@ class Note < ActiveRecord::Base
   serialize :st_diff
   before_create :set_diff, if: ->(n) { n.line_code.present? }
+  after_update :set_references
   class << self
     def create_status_change_note(noteable, project, author, status, source)
@@ -314,4 +315,8 @@ class Note < ActiveRecord::Base
       order('id DESC').limit(100).
       update_all(updated_at: Time.now)
   end
+
+  def set_references
+    notice_added_references(project, author)
+  end
 end

app/observers/note_observer.rb

-class NoteObserver < BaseObserver
-  def after_create(note)
-    notification.new_note(note)
-
-    # Skip system notes, like status changes and cross-references.
-    unless note.system
-      event_service.leave_note(note, note.author)
-
-      # Create a cross-reference note if this Note contains GFM that names an
-      # issue, merge request, or commit.
-      note.references.each do |mentioned|
-        Note.create_cross_reference_note(mentioned, note.noteable, note.author, note.project)
-      end
-    end
-  end
-
-  def after_update(note)
-    note.notice_added_references(note.project, note.author)
-  end
-end

app/services/notes/create_service.rb

 module Notes
   class CreateService < BaseService
     def execute
-      note = project.notes.new(params[:note])
+      note = project.notes.new(params)
       note.author = current_user
       note.system = false
-      note.save
+
+      if note.save
+        notification_service.new_note(note)
+
+        # Skip system notes, like status changes and cross-references.
+        unless note.system
+          event_service.leave_note(note, note.author)
+
+          # Create a cross-reference note if this Note contains GFM that names an
+          # issue, merge request, or commit.
+          note.references.each do |mentioned|
+            Note.create_cross_reference_note(mentioned, note.noteable, note.author, note.project)
+          end
+        end
+      end
+
       note
     end
   end

config/application.rb

@@ -19,8 +19,7 @@ module Gitlab
     # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
     # Activate observers that should always be running.
-    config.active_record.observers = :note_observer,
-                                     :system_hook_observer,
+    config.active_record.observers = :system_hook_observer,
                                      :user_observer,
                                      :users_project_observer

spec/observers/note_observer_spec.rb

-require 'spec_helper'
-
-describe NoteObserver do
-  subject { NoteObserver.instance }
-  before { subject.stub(notification: double('NotificationService').as_null_object) }
-
-  let(:team_without_author) { (1..2).map { |n| double :user, id: n } }
-  let(:note) { double(:note).as_null_object }
-
-  describe '#after_create' do
-
-    it 'is called after a note is created' do
-      subject.should_receive :after_create
-
-      Note.observers.enable :note_observer do
-        create(:note)
-      end
-    end
-
-    it 'sends out notifications' do
-      subject.should_receive(:notification)
-
-      subject.after_create(note)
-    end
-
-    it 'creates cross-reference notes as appropriate' do
-      @p = create(:project)
-      @referenced = create(:issue, project: @p)
-      @referencer = create(:issue, project: @p)
-      @author = create(:user)
-
-      Note.should_receive(:create_cross_reference_note).with(@referenced, @referencer, @author, @p)
-
-      Note.observers.enable :note_observer do
-        create(:note, project: @p, author: @author, noteable: @referencer,
-          note: "Duplicate of ##{@referenced.iid}")
-      end
-    end
-
-    it "doesn't cross-reference system notes" do
-      Note.should_receive(:create_cross_reference_note).once
-
-      Note.observers.enable :note_observer do
-        Note.create_cross_reference_note(create(:issue), create(:issue))
-      end
-    end
-  end
-
-  describe '#after_update' do
-    it 'checks for new cross-references' do
-      note.should_receive(:notice_added_references)
-
-      subject.after_update(note)
-    end
-  end
-end

spec/services/notes/create_service_spec.rb

+require 'spec_helper'
+
+describe Notes::CreateService do
+  let(:project) { create(:empty_project) }
+  let(:issue) { create(:issue, project: project) }
+  let(:user) { create(:user) }
+
+  describe :execute do
+    context "valid params" do
+      before do
+        project.team << [user, :master]
+        opts = {
+          note: 'Awesome comment',
+          description: 'please fix',
+          noteable_type: 'Issue',
+          noteable_id: issue.id
+        }
+
+        @note = Notes::CreateService.new(project, user, opts).execute
+      end
+
+      it { @note.should be_valid }
+      it { @note.note.should == 'Awesome comment' }
+    end
+  end
+end
+