redirect user to app's page only if there is any app for this user

app/controllers/application_controller.rb

@@ -8,7 +8,7 @@ class ApplicationController < ActionController::Base
   # redirect to that app's path instead of the root path (apps#index).
   def stored_location_for(resource)
     location = super || root_path
-    (location == root_path && App.count == 1) ? app_path(App.first) : location
+    (location == root_path && current_user.apps.count == 1) ? app_path(current_user.apps.first) : location
   end
 
   rescue_from ActionController::RedirectBackError, :with => :redirect_to_root
@@ -24,7 +24,7 @@ def require_admin!
   def redirect_to_root
     redirect_to(root_path)
   end
-  
+
   def set_time_zone
     Time.zone = current_user.time_zone if user_signed_in?
   end

spec/controllers/devise_sessions_controller_spec.rb

@@ -0,0 +1,26 @@
+require 'spec_helper'
+
+describe Devise::SessionsController do
+  render_views
+
+  describe "POST /users/sign_in" do
+    before do
+      @request.env["devise.mapping"] = Devise.mappings[:user]
+    end
+
+    let(:app)  { Fabricate(:app) }
+    let(:user) { Fabricate(:user) }
+
+    it 'redirects to app index page if there are no apps for the user' do
+      post :create, { :user => { 'email' => user.email, 'password' => user.password } }
+      response.should redirect_to(root_path)
+    end
+
+    it 'redirects to app page if there is app for the user' do
+      Fabricate(:user_watcher, :app => app, :user => user)
+      post :create, { :user => { 'email' => user.email, 'password' => user.password } }
+      response.should redirect_to(app_path(app))
+    end
+  end
+end
+