Add barcodes index and destroy

app/controllers/barcodes_controller.rb

@@ -1,17 +1,25 @@
 class BarcodesController < ApplicationController
   load_and_authorize_resource :product, only: :create
-  load_and_authorize_resource :barcode, through: :product, only: :create
-
+  load_and_authorize_resource :barcode, through: :product, shallow: true
   def create
     @barcode.save
     redirect_to barcode_products_path, notice: "Barcode successfully linked!"
   end
 
+  def index
+    @barcodes = Barcode.all.order(:code)
+  end
+
   def show
     @barcode = Barcode.find_by(code: params[:id])
     render json: @barcode.try(:product)
   end
 
+  def destroy
+    @barcode.destroy
+    redirect_to barcodes_path
+  end
+
   private
 
   def barcode_params

app/views/barcodes/_barcode.html.haml

@@ -0,0 +1,6 @@
+%tr
+  %td= barcode.id
+  %td= barcode.code
+  %td= barcode.product.name
+  %td= image_tag barcode.product.avatar(:small)
+  %td= button_to "Delete", barcode_path(barcode), method: :delete, class: "btn btn-danger"

app/views/barcodes/index.html.haml

@@ -0,0 +1,10 @@
+.row
+  .col-md-8.col-md-offset-2
+    %table.table.table-striped
+      %tr
+        %th
+        %th Barcode
+        %th Product
+        %th
+        %th
+      = render @barcodes

app/views/layouts/_header.html.haml

@@ -23,6 +23,7 @@
                 %ul.dropdown-menu{role: "menu"}
                   %li= link_to "List", products_path
                   %li= link_to "Add product" , barcode_products_path
+                  %li= link_to "Barcodes", barcodes_path
             %li.dropdown
               %a.dropdown-toggle{"data-toggle" => "dropdown", href: "#"}
                 Logged in as #{current_user.name}

config/routes.rb

@@ -26,12 +26,14 @@ Rails.application.routes.draw do
   end
 
   resources :products, only: [:create, :index, :edit, :update] do
-    resources :barcodes, only: [:create, :show], shallow: true
+    resources :barcodes, only: :create
     collection do
       get 'barcode' => 'products#barcode', as: :barcode
       post 'barcode' => 'products#load_barcode', as: :load_barcode
     end
   end
 
+  resources :barcodes, only: [:show, :index, :destroy]
+
   get 'overview' => 'orders#overview', as: "orders"
 end