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

app/views/bikes/_fields.html.haml

@@ -61,22 +61,22 @@
         = f.label "Purpose:", class: "col-sm-4 control-label"
         .col-sm-6
           = f.select :purpose, [["Freecyclery", "Freecyclery"], ["Sale", "Sale"]], {}, class: "selectpicker", disabled: disabled
-  
+
       .form-group
         = f.label "Tag Info", class: "col-sm-4 control-label"
         .col-sm-6
           = f.text_area :tag_info, class: "form-control", placeholder: "+ New Component ", disabled: disabled
-   
+
       .form-group
         = f.label "Notes", class: "col-sm-4 control-label"
         .col-sm-6
           = f.text_area :notes, class: "form-control", disabled: disabled
-  
+
       .form-group
         = f.label "Date Sold:", class: "col-sm-4 control-label"
         .col-sm-6
           = f.text_field :date_sold, class: "form-control datepicker", disabled: disabled
-   
+
       .form-group
         = f.label "Price", class: "col-sm-4 control-label"
         .col-sm-6

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" 
+    brand "Windsor"
-    model "Clockwork" 
+    model "Clockwork"
-    bike_type "Fixed Gear" 
+    bike_type "Fixed Gear"
-    color "Black" 
+    color "Black"
-    serial_number "12345678" 
+    sequence(:serial_number)
   end
 end