lk | generates log number when new bike is logged

app/controllers/bikes_controller.rb

@@ -15,6 +15,7 @@ class BikesController < ApplicationController
 
   def new
     @bike = Bike.new
+    @log_number = Bike.order(:log_number).last.log_number + 1
   end
 
   def edit

spec/controllers/bikes_controller_spec.rb

@@ -15,4 +15,12 @@ describe BikesController do
     end
   end
 
+  describe "GET #new" do
+    it "assigns a log number" do
+      FactoryGirl.create(:bike, log_number: 3)
+      get :new
+      expect(assigns(:log_number)).to eq(4)
+    end
+  end
+
 end

spec/factories/bikes.rb

@@ -1,10 +1,10 @@
 FactoryGirl.define do
   factory :bike do
-    log_number "1234" 
+    sequence(:log_number)
     brand "Windsor"
     model "Clockwork"
     bike_type "Fixed Gear"
     color "Black"
-    serial_number "12345678" 
+    sequence(:serial_number)
   end
 end