Create route that makes a beta_signup for a logged in user

app/controllers/beta_signups_controller.rb

@@ -0,0 +1,10 @@
+class BetaSignupsController < ApplicationController
+  def create
+    bsu = BetaSignup.new
+    bsu.user = current_user
+
+    respond_to do |format|
+      format.json { render json: bsu.save.to_json }
+    end
+  end
+end

config/routes.rb

@@ -21,6 +21,7 @@
   resources :projects
   resources :favorites
   resources :events
+  resources :beta_signups, only: [:create]
 
   # Static content
   get '/about', controller: 'home', action: 'about'

db/migrate/20150310143949_change_beta_signups_user_id_to_be_present.rb

@@ -0,0 +1,5 @@
+class ChangeBetaSignupsUserIdToBePresent < ActiveRecord::Migration
+  def change
+    change_column :beta_signups, :user_id, :integer, null: false
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20150227190642) do
+ActiveRecord::Schema.define(:version => 20150310143949) do
 
   create_table "active_admin_comments", :force => true do |t|
     t.string   "namespace"
@@ -28,7 +28,7 @@
   add_index "active_admin_comments", ["resource_type", "resource_id"], :name => "index_active_admin_comments_on_resource_type_and_resource_id"
 
   create_table "beta_signups", :force => true do |t|
-    t.integer  "user_id"
+    t.integer  "user_id",    :null => false
     t.datetime "created_at", :null => false
     t.datetime "updated_at", :null => false
   end

spec/controllers/beta_signups_controller_spec.rb

@@ -0,0 +1,21 @@
+require "spec_helper"
+
+describe BetaSignupsController do
+  include Devise::TestHelpers
+
+  describe "POST #create" do
+    let(:user) { create(:user) }
+    before { sign_in user }
+
+    it "is successful" do
+      post :create, format: :json
+      expect(response).to be_success
+    end
+
+    it "saves a new beta_signup to the database" do
+      expect do
+        post :create, format: :json
+      end.to change(BetaSignup, :count).by(1)
+    end
+  end
+end