lk | adds links to previous and next bikes on bike edit page and removes

bike#show route

app/controllers/bikes_controller.rb

@@ -7,14 +7,16 @@ class BikesController < ApplicationController
     @unsold_bikes = @bikes.select{|bike| bike.date_sold.nil? && bike.purpose == "Sale"}
   end
 
-  def show; end
-
   def new
     @bike = Bike.new
-    @log_number = Bike.order(:log_number).last.log_number + 1
+    @previous_bike = Bike.order(:log_number).last
+    @log_number = @previous_bike.log_number + 1
   end
 
-  def edit; end
+  def edit
+    @next_bike = Bike.where(log_number: @bike.log_number + 1).first
+    @previous_bike = Bike.where(log_number: @bike.log_number - 1).first
+  end
 
   def print_select
     @bikes = Bike.where.not(purpose: "Freecyclery").order(:log_number).reverse_order.paginate(:page => params[:page], :per_page => 30)
@@ -45,7 +47,6 @@ class BikesController < ApplicationController
   end
 
   def update
-
     if @bike.update(bike_params)
       redirect_to @bike, notice: 'Bike was successfully updated.'
     else
@@ -53,11 +54,6 @@ class BikesController < ApplicationController
     end
   end
 
-  def destroy
-    @bike.destroy
-    redirect_to bikes_url
-  end
-
   def mark_as_sold
     current_date = Time.new.strftime("%Y-%m-%d")
     @bike = Bike.find(params[:id])

app/views/bikes/edit.html.haml

@@ -5,6 +5,12 @@
     .col-sm-3.col-sm-offset-3
       =button_to "Mark as sold", {action: "mark_as_sold", id: @bike.id}, method: :patch, class: "btn btn-default"
   = render 'edit_form'
-  = link_to 'Show', @bike
+  - if @next_bike
+    = link_to 'Next Bike', edit_bike_path(@next_bike)
+  - else
+    = link_to 'New Bike', new_bike_path
   |
-  = link_to 'Back', bikes_path
+  = link_to 'All Bikes', bikes_path
+  - if @previous_bike
+    |
+    = link_to 'Previous Bike', edit_bike_path(@previous_bike)

app/views/bikes/new.html.haml

@@ -1,4 +1,6 @@
 .container
   %h1 New bike
   = render 'new_form'
-  = link_to 'Back', bikes_path
+  = link_to 'All Bikes', bikes_path
+  |
+  = link_to 'Previous Bike', edit_bike_path(@previous_bike)

config/routes.rb

@@ -6,7 +6,7 @@ Bikedb::Application.routes.draw do
 
   mount Sidekiq::Web => '/sidekiq'
 
-  resources :bikes do
+  resources :bikes, except: [:show, :destroy] do
     get 'search' => 'bikes#search', on: :collection
     get 'print_select' => 'bikes#print_select', on: :collection
     get 'print_labels' => 'bikes#print_labels', on: :collection

spec/controllers/bikes_controller_spec.rb

@@ -2,40 +2,57 @@ require 'spec_helper'
 
 describe BikesController do
 
-  let(:user){FactoryGirl.create(:user)}
-  let(:bike){FactoryGirl.create(:bike)}
+  let(:user){ create :user }
+  let(:bike){ create :bike }
 
   before :each do
     sign_in user
   end
 
-  describe "GET #index" do
+  describe "#index" do
     it "assignes unsold bikes" do
-      bike = FactoryGirl.create(:bike, date_sold: nil, purpose: "Sale")
+      bike = create :bike, date_sold: nil, purpose: "Sale"
       get :index
       expect(assigns(:unsold_bikes)).to eq([bike])
     end
   end
 
-  describe "POST #create" do
+  describe "#create" do
     it "creates a new bike with valid credentials" do
       expect{
-        post :create, bike: FactoryGirl.attributes_for(:bike)
+        post :create, bike: attributes_for(:bike)
       }.to change(Bike, :count).by(1)
     end
     it "redirects to new bike path" do
-      expect(post :create, bike: FactoryGirl.attributes_for(:bike)).to redirect_to(new_bike_path)
+      expect(post :create, bike: attributes_for(:bike)).to redirect_to(new_bike_path)
     end
   end
 
 
-  describe "GET #new" do
+  describe "#new" do
     it "assigns a log number" do
-      FactoryGirl.create(:bike, log_number: 3)
+      create :bike, log_number: 3
       get :new
       expect(assigns(:log_number)).to eq(4)
     end
+    it "assigns the previous bike" do
+      previous_bike = create :bike, log_number: 3
+      get :new
+      expect(assigns(:previous_bike)).to eq(previous_bike)
+    end
   end
 
-
+  describe "#edit" do
+    before do
+      @previous_bike = create :bike, log_number: 2
+      @current_bike = create :bike, log_number: 3
+      @next_bike = create :bike, log_number: 4
+    end
+    it "assigns the current, previous, and next bikes" do
+      get :edit, id: @current_bike.id
+      expect(assigns(:previous_bike)).to eq(@previous_bike)
+      expect(assigns(:bike)).to eq(@current_bike)
+      expect(assigns(:next_bike)).to eq(@next_bike)
+    end
+  end
 end