Move update issue code to separate service

app/controllers/projects/issues_controller.rb

@@ -74,8 +74,7 @@ class Projects::IssuesController < Projects::ApplicationController
   end
 
   def update
-    @issue.update_attributes(params[:issue])
-    @issue.reset_events_cache
+    @issue = Issues::UpdateService.new(project, current_user, params[:issue]).execute(issue)
 
     respond_to do |format|
       format.js

app/observers/issue_observer.rb

@@ -12,16 +12,6 @@ class IssueObserver < BaseObserver
     execute_hooks(issue)
   end
 
-  def after_update(issue)
-    if issue.is_being_reassigned?
-      notification.reassigned_issue(issue, current_user)
-      create_assignee_note(issue)
-    end
-
-    issue.notice_added_references(issue.project, current_user)
-    execute_hooks(issue)
-  end
-
   protected
 
   # Create issue note with service comment like 'Status changed to closed'

app/services/issues/base_service.rb

+module Issues
+  class BaseService < ::BaseService
+
+    private
+
+    # Create issue note with service comment like 'Status changed to closed'
+    def create_note(issue)
+      Note.create_status_change_note(issue, issue.project, current_user, issue.state, current_commit)
+    end
+
+    def create_assignee_note(issue)
+      Note.create_assignee_change_note(issue, issue.project, current_user, issue.assignee)
+    end
+
+    def execute_hooks(issue)
+      issue.project.execute_hooks(issue.to_hook_data, :issue_hooks)
+    end
+  end
+end

app/services/issues/create_service.rb

@@ -13,11 +13,5 @@ module Issues
 
       issue
     end
-
-    private
-
-    def execute_hooks(issue)
-      issue.project.execute_hooks(issue.to_hook_data, :issue_hooks)
-    end
   end
 end

app/services/issues/update_service.rb

+module Issues
+  class UpdateService < BaseService
+    def execute(issue)
+      if issue.update_attributes(params)
+        issue.reset_events_cache
+
+        if issue.is_being_reassigned?
+          notification.reassigned_issue(issue, current_user)
+          create_assignee_note(issue)
+        end
+
+        issue.notice_added_references(issue.project, current_user)
+        execute_hooks(issue)
+      end
+
+      issue
+    end
+  end
+end

lib/api/issues.rb

@@ -74,18 +74,18 @@ module API
       # Example Request:
       #   PUT /projects/:id/issues/:issue_id
       put ":id/issues/:issue_id" do
-        set_current_user_for_thread do
-          @issue = user_project.issues.find(params[:issue_id])
-          authorize! :modify_issue, @issue
+        issue = user_project.issues.find(params[:issue_id])
+        authorize! :modify_issue, issue
 
-          attrs = attributes_for_keys [:title, :description, :assignee_id, :milestone_id, :state_event]
-          attrs[:label_list] = params[:labels] if params[:labels].present?
+        attrs = attributes_for_keys [:title, :description, :assignee_id, :milestone_id, :state_event]
+        attrs[:label_list] = params[:labels] if params[:labels].present?
+
+        issue = ::Issues::UpdateService.new(user_project, current_user, attrs).execute(issue)
 
-          if @issue.update_attributes attrs
-            present @issue, with: Entities::Issue
-          else
-            not_found!
-          end
+        if issue.valid?
+          present issue, with: Entities::Issue
+        else
+          not_found!
         end
       end
 

spec/services/issues/create_service_spec.rb

@@ -17,6 +17,7 @@ describe Issues::CreateService do
       end
 
       it { @issue.should be_valid }
+      it { @issue.title.should == 'Awesome issue' }
     end
   end
 end

spec/services/issues/update_service_spec.rb

+require 'spec_helper'
+
+describe Issues::UpdateService do
+  let(:project) { create(:empty_project) }
+  let(:user) { create(:user) }
+  let(:issue) { create(:issue) }
+
+  describe :execute do
+    context "valid params" do
+      before do
+        project.team << [user, :master]
+        opts = {
+          title: 'New title',
+          description: 'Also please fix'
+        }
+
+        @issue = Issues::UpdateService.new(project, user, opts).execute(issue)
+      end
+
+      it { @issue.should be_valid }
+      it { @issue.title.should == 'New title' }
+    end
+  end
+end