Hoang Phuc Do · @phucdh · Trong Huu Nguyen · Hoang Phuc Do · Trong Huu Nguyen · Hoang Phuc Do
--- a/Gemfile
+++ b/Gemfile
  # Adds support for Capybara system testing and selenium driver
  gem 'capybara', '~> 2.13'
  gem 'selenium-webdriver'
+  # When mail is sent from your application, Letter Opener will open a preview in the browser instead of sending.
+  gem 'letter_opener', '~> 1.4', '>= 1.4.1'
--- a/app/assets/javascripts/shop-14.js.erb 0 → 100644
+++ b/app/assets/javascripts/shop-14.js.erb 0 → 100644
+(function($) {
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
 class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception
-  # rescue_from ActiveRecord::RecordNotFound, :with => :render_404
+
+  rescue_from ActiveRecord::RecordNotFound, :with => :render_404
+
+  include CartsHelper
--- a/app/controllers/line_items_controller.rb 0 → 100644
+++ b/app/controllers/line_items_controller.rb 0 → 100644
+class LineItemsController < ApplicationController
+  include CartsHelper
+
+  before_action :set_cart, only: [:create, :update, :destroy]
+
+  def show
+    redirect_to product_url(params[:id])
+  end
+
+  # POST /line_items
+  def create
+    product = Product.find(params[:product_id])
+    add_to_cart(product.id.to_s, params[:product_vqty].to_i)
--- a/app/controllers/line_items_controller.rb 0 → 100644
+++ b/app/controllers/line_items_controller.rb 0 → 100644
+      format.js
+    end
+  end
+
+  # PATCH/PUT /line_items/1
+  def update
+    update_cart_item(*update_params.to_h.values)
+
+    respond_to do |format|
+      format.html { redirect_to cart_index_url }
+    end
+  end
+
+  # DELETE /line_items/1
+  def destroy
+    remove_from_cart(params[:id])
--- a/app/controllers/line_items_controller.rb 0 → 100644
+++ b/app/controllers/line_items_controller.rb 0 → 100644
+    end
+  end
+
+  # PATCH/PUT /line_items/1
+  def update
+    update_cart_item(*update_params.to_h.values)
+
+    respond_to do |format|
+      format.html { redirect_to cart_index_url }
+    end
+  end
+
+  # DELETE /line_items/1
+  def destroy
+    remove_from_cart(params[:id])
+    product_title = Product.select(:title).find(params[:id]).title
--- a/app/controllers/line_items_controller.rb 0 → 100644
+++ b/app/controllers/line_items_controller.rb 0 → 100644
+  # PATCH/PUT /line_items/1
+  def update
+    update_cart_item(*update_params.to_h.values)
+
+    respond_to do |format|
+      format.html { redirect_to cart_index_url }
+    end
+  end
+
+  # DELETE /line_items/1
+  def destroy
+    remove_from_cart(params[:id])
+    product_title = Product.select(:title).find(params[:id]).title
+
+    respond_to do |format|
+      format.html { redirect_to cart_index_url, notice: "#{product_title} was sucessfully removed from your cart" }
--- a/app/controllers/orders_controller.rb 0 → 100644
+++ b/app/controllers/orders_controller.rb 0 → 100644
+        format.html { redirect_to root_url }
+      else
+        format.html { redirect_to root_url }
+      end
+    end
+  end
+
+  def create_line_items_for_order(order)
+    @cart.each do |product_id, product_attrs|
+      order.line_items.create(product_id: product_id, quantity: product_attrs['quantity'])
+    end
+  end
+
+  private
+
+  def ensure_cart_is_not_empty
--- a/app/controllers/orders_controller.rb 0 → 100644
+++ b/app/controllers/orders_controller.rb 0 → 100644
+class OrdersController < ApplicationController
+  include CartsHelper
+  include LineItemsHelper
+
+  before_action :authenticate_user!, only: :new
+  before_action :set_cart, only: [:new, :create]
+  before_action :get_line_items, only: :new
+  before_action :ensure_cart_is_not_empty, only: :new
--- a/app/controllers/static_pages_controller.rb
+++ b/app/controllers/static_pages_controller.rb
    @latest_products = Product.page(params[:page]).per(10)
    # @TODO: Get recommended products
    @recommended_products = Product.last(6)
+    # session.clear
--- a/app/helpers/carts_helper.rb 0 → 100644
+++ b/app/helpers/carts_helper.rb 0 → 100644
+    else
+      @cart[product_id] = { quantity: quantity }
+    end
+  end
+
+  def update_cart_item(product_id, quantity)
+    return unless @cart.key?(product_id)
+    if quantity.to_i.zero?
+      remove_from_cart(product_id)
+    else
+      @cart[product_id][:quantity.to_s] = quantity.to_i
+    end
+  end
+
+  def remove_from_cart(product_id)
+    @cart = @cart.delete(product_id) if @cart.key?(product_id)
--- a/app/helpers/carts_helper.rb 0 → 100644
+++ b/app/helpers/carts_helper.rb 0 → 100644
+    else
+      @cart[product_id][:quantity.to_s] = quantity.to_i
+    end
+  end
+
+  def remove_from_cart(product_id)
+    @cart = @cart.delete(product_id) if @cart.key?(product_id)
+  end
+
+  def destroy_cart_session
+    session[:cart] = nil
+  end
+
+  def cart_total_price
+    @cart.sum do |product_id, product_attrs|
+      product_price = Product.select(:price).find(product_id).price
--- a/app/mailers/order_mailer.rb 0 → 100644
+++ b/app/mailers/order_mailer.rb 0 → 100644
+class OrderMailer < ApplicationMailer
+  def order_detail(user, order)
--- a/app/models/line_item.rb 0 → 100644
+++ b/app/models/line_item.rb 0 → 100644
+class LineItem < ApplicationRecord
+  belongs_to :product, optional: true
+  belongs_to :order, optional: true
+
+  def create_line_items_from_cart(cart)