Adding code from

#2

README.md

@@ -2,6 +2,14 @@
 
 [![Build Status](https://travis-ci.org/crowdint/acts_as_shopping_cart_app.svg?branch=master)](https://travis-ci.org/crowdint/acts_as_shopping_cart_app)
 
-## TODO
 
-- Explain how to use it or where to see it working
+## Installation
+
+```bash
+git clone https://github.com/crowdint/acts_as_shopping_cart_app
+cd acts_as_shopping_cart_app
+bundle exec
+bundle install
+bundle exec rake db:setup
+bundle exec rails s
+```

app/controllers/products_controller.rb

@@ -1,5 +1,74 @@
 class ProductsController < ApplicationController
+  before_action :set_product, only: [:show, :edit, :update, :destroy]
+
+  # GET /products
+  # GET /products.json
   def index
     @products = Product.all
   end
+
+  # GET /products/1
+  # GET /products/1.json
+  def show
+  end
+
+  # GET /products/new
+  def new
+    @product = Product.new
+  end
+
+  # GET /products/1/edit
+  def edit
+  end
+
+  # POST /products
+  # POST /products.json
+  def create
+    @product = Product.new(product_params)
+
+    respond_to do |format|
+      if @product.save
+        format.html { redirect_to @product, notice: 'Product was successfully created.' }
+        format.json { render :show, status: :created, location: @product }
+      else
+        format.html { render :new }
+        format.json { render json: @product.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # PATCH/PUT /products/1
+  # PATCH/PUT /products/1.json
+  def update
+    respond_to do |format|
+      if @product.update(product_params)
+        format.html { redirect_to @product, notice: 'Product was successfully updated.' }
+        format.json { render :show, status: :ok, location: @product }
+      else
+        format.html { render :edit }
+        format.json { render json: @product.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /products/1
+  # DELETE /products/1.json
+  def destroy
+    @product.destroy
+    respond_to do |format|
+      format.html { redirect_to products_url, notice: 'Product was successfully destroyed.' }
+      format.json { head :no_content }
+    end
+  end
+
+  private
+  # Use callbacks to share common setup or constraints between actions.
+  def set_product
+    @product = Product.find(params[:id])
+  end
+
+  # Never trust parameters from the scary internet, only allow the white list through.
+  def product_params
+    params.require(:product).permit(:name, :price)
+  end
 end

app/views/products/_form.html.erb

@@ -0,0 +1,25 @@
+<%= form_for(@product) do |f| %>
+  <% if @product.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(@product.errors.count, "error") %> prohibited this product from being saved:</h2>
+
+      <ul>
+      <% @product.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div class="field">
+    <%= f.label :name %><br>
+    <%= f.text_field :name %>
+  </div>
+  <div class="field">
+    <%= f.label :price %><br>
+    <%= f.text_field :price %>
+  </div>
+  <div class="actions">
+    <%= f.submit %>
+  </div>
+<% end %>

app/views/products/edit.html.erb

@@ -0,0 +1,6 @@
+<h1>Editing product</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Show', @product %> |
+<%= link_to 'Back', products_path %>

app/views/products/index.html.erb

@@ -1,3 +1,28 @@
-<h1>Products#index</h1>
+<h1>Listing products</h1>
 
-<%= render @products %>
+<table>
+  <thead>
+    <tr>
+      <th>Name</th>
+      <th>Price</th>
+      <th colspan="3"></th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @products.each do |product| %>
+      <tr>
+        <td><%= product.name %></td>
+        <td><%= product.price %></td>
+        <td><%= link_to 'Add to cart', shopping_cart_path(:product_id => product), :method => 'POST' %></td>
+        <td><%= link_to 'Show', product %></td>
+        <td><%= link_to 'Edit', edit_product_path(product) %></td>
+        <td><%= link_to 'Destroy', product, method: :delete, data: { confirm: 'Are you sure?' } %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<br>
+
+<%= link_to 'New Product', new_product_path %>

app/views/products/index.json.jbuilder

@@ -0,0 +1,4 @@
+json.array!(@products) do |product|
+  json.extract! product, :id, :name, :price
+  json.url product_url(product, format: :json)
+end

app/views/products/new.html.erb

@@ -0,0 +1,5 @@
+<h1>New product</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Back', products_path %>

app/views/products/show.html.erb

@@ -0,0 +1,18 @@
+<p id="notice"><%= notice %></p>
+
+<p>
+  <strong>Name:</strong>
+  <%= @product.name %>
+</p>
+
+<p>
+  <strong>Price:</strong>
+  <%= @product.price %>
+</p>
+
+<p>
+  <%= link_to 'Add to cart', shopping_cart_path(:product_id => @product), :method => 'POST' %>
+</p>
+
+<%= link_to 'Edit', edit_product_path(@product) %> |
+<%= link_to 'Back', products_path %>

app/views/products/show.json.jbuilder

@@ -0,0 +1 @@
+json.extract! @product, :id, :name, :price, :created_at, :updated_at

app/views/shopping_carts/_shopping_cart_item.html.erb

@@ -1,4 +1,6 @@
 <div>
-  <div><%= shopping_cart_item.item.name %></div>
-  <div><%= shopping_cart_item.item.price %></div>
+   <% if shopping_cart_item.item %>
+   <div><%= shopping_cart_item.item.name %></div>
+   <div><%= shopping_cart_item.item.price %></div>
+   <% end %>
 </div>

app/views/shopping_carts/show.html.erb

@@ -6,3 +6,4 @@
   <div><b>SubTotal:</b><%= number_to_currency @shopping_cart.subtotal %></div>
   <div><b>Taxes:</b><%= number_to_currency @shopping_cart.taxes %></div>
   <div><b>Total:</b><%= number_to_currency @shopping_cart.total %></div>
+</div>

config/routes.rb

@@ -1,4 +1,6 @@
 Rails.application.routes.draw do
-  resources :products, only: [ :index ]
+  resources :products
   resource :shopping_cart
+
+  root 'products#index'
 end