Create NotificationSettings object only when user change value in dropdown

app/assets/javascripts/project.js.coffee

@@ -38,12 +38,19 @@ class @Project
       e.preventDefault()
       notification_level = $(@).data 'notification-level'
       label = $(@).data 'notification-title'
-      $('#notification_level').val(notification_level)
+      $('#notification_setting_level').val(notification_level)
       $('#notification-form').submit()
       $('#notifications-button').empty().append("<i class='fa fa-bell'></i>" + label + "<i class='fa fa-angle-down'></i>")
       $(@).parents('ul').find('li.active').removeClass 'active'
       $(@).parent().addClass 'active'
 
+    $('#notification-form').on 'ajax:success', (e, data) ->
+      if data.saved
+        new Flash("Notification settings saved", "notice")
+      else
+        new Flash("Failed to save new settings", "alert")
+
+
     @projectSelectDropdown()
 
   projectSelectDropdown: ->

app/controllers/projects/notification_settings_controller.rb

+class Projects::NotificationSettingsController < Projects::ApplicationController
+  def create
+    notification_setting = project.notification_settings.new(notification_setting_params)
+    notification_setting.user = current_user
+    saved = notification_setting.save
+
+    render json: { saved: saved }
+  end
+
+  def update
+    notification_setting = project.notification_settings.where(user_id: current_user).find(params[:id])
+    saved = notification_setting.update_attributes(notification_setting_params)
+
+    render json: { saved: saved }
+  end
+
+  private
+
+  def notification_setting_params
+    params.require(:notification_setting).permit(:level)
+  end
+end

app/controllers/projects_controller.rb

@@ -102,7 +102,8 @@ class ProjectsController < Projects::ApplicationController
           @membership = @project.team.find_member(current_user.id)
 
           if @membership
-            @notification_setting = current_user.notification_settings.find_or_create_for(@project)
+            @notification_setting = current_user.notification_settings.find_or_initialize_by(source: @project)
+            @notification_setting.set_defaults unless @notification_setting.persisted?
           end
         end
 

app/views/projects/buttons/_notifications.html.haml

 - if @notification_setting
-  = form_tag profile_notifications_path, method: :put, remote: true, class: 'inline', id: 'notification-form' do
-    = hidden_field_tag :notification_id, @notification_setting.id
-    = hidden_field_tag :notification_level, @notification_setting.level
+  = form_for [@project.namespace.becomes(Namespace), @project, @notification_setting], remote: true, html: { class: 'inline', id: 'notification-form' } do |f|
+    = f.hidden_field :level
     %span.dropdown
       %a.dropdown-new.btn.notifications-btn#notifications-button{href: '#', "data-toggle" => "dropdown"}
         = icon('bell')

config/routes.rb

@@ -606,6 +606,7 @@ Rails.application.routes.draw do
 
         resources :forks, only: [:index, :new, :create]
         resource :import, only: [:new, :create, :show]
+        resources :notification_settings, only: [:create, :update]
 
         resources :refs, only: [] do
           collection do