VietTH: Fix reviewcode and feedback

app/assets/stylesheets/layout.css.scss

@@ -22,6 +22,12 @@ label.error{
     }
   }
 
+  #message{
+    .alert{
+      margin-top: 20px;
+    }
+  }
+
   #content{
     .products-list-detail{
       .product-item{

app/controllers/carts_controller.rb

@@ -8,38 +8,21 @@ class CartsController < ApplicationController
   end
 
   def create
-    cart = current_user.carts.build(cart_params)
-
-    product_ids = []
-    quantites = {}
-    cart_params['cart_items_attributes'].each do |item|
-      id = item.last['product_id']
-      product_ids << id
-      quantites[id] = item.last['quantity']
-    end
-
-    products = Product.where(id: [product_ids]).select(:id, :price)
-    total = products.inject(0) do |sum, product|
-      sum + (product.price.to_i * quantites[product.id.to_s].to_i)
-    end
-    cart.total = total
-
-    if cart.save
+    if cart_service.create(cart_params)
       clear_cart
-      self.send_checkout_email(cart)
       redirect_to root_path
     else
       render :index
     end
   end
 
-  def send_checkout_email(cart)
-    CartMailer.send_checkout(current_user.email, cart).deliver_later
-  end
-
   private
   def cart_params
     params.require(:cart).permit(:total, cart_items_attributes: [:product_id, :quantity])
   end
 
+  def cart_service
+    @cart_service ||= CartService.new(current_user, params)
+  end
+
 end
\ No newline at end of file

app/controllers/categories_controller.rb

@@ -8,6 +8,7 @@ class CategoriesController < ApplicationController
   private
   def set_category
     @category = Category.find_by(id: params[:id])
+    redirect_to root_path, alert: "Category not found" if @category.blank?
   end
 
 end
\ No newline at end of file

app/controllers/products_controller.rb

@@ -33,6 +33,7 @@ class ProductsController < ApplicationController
   private
   def set_product
     @product = Product.find_by(id: params[:id])
+    redirect_to root_path, alert: "Product not found" if @product.blank?
   end
 
   def set_categories

app/services/base_service.rb

+class BaseService
+
+  attr_accessor :current_user, :params
+
+  def initialize user = nil, params = {}
+    @current_user = user
+    @params       = params
+  end
+
+end
\ No newline at end of file

app/services/cart_service.rb

+class CartService < BaseService
+
+  def create(cart_params)
+    cart = current_user.carts.build(cart_params)
+
+    product_ids = []
+    quantites = {}
+    cart_params['cart_items_attributes'].each do |item|
+      id = item.last['product_id']
+      product_ids << id
+      quantites[id] = item.last['quantity']
+    end
+
+    products = Product.where(id: [product_ids]).select(:id, :price)
+    total = products.inject(0) do |sum, product|
+      sum + (product.price.to_i * quantites[product.id.to_s].to_i)
+    end
+    cart.total = total
+
+    if cart.save
+      send_checkout_email(cart)
+      {status: true}
+    else
+      {status: false}
+    end
+  end
+
+  private
+  def send_checkout_email(cart)
+    CartMailer.send_checkout(current_user.email, cart).deliver_later
+  end
+
+end
\ No newline at end of file

app/views/layouts/_header.html.haml

@@ -20,4 +20,4 @@
       %li
         = link_to('Login', new_user_session_path)
       %li
-        = link_to 'Register', new_user_registration_path
\ No newline at end of file
+        = link_to 'Register', new_user_registration_path

app/views/layouts/_message.html.haml

+#message
+  - if notice
+    .alert.alert-success
+      = notice
+
+  - if alert
+    .alert.alert-danger
+      = alert
\ No newline at end of file

app/views/layouts/application.html.haml

@@ -11,6 +11,7 @@
         = render '/layouts/header'
 
     #wrapper.container-fluid
+      = render '/layouts/message'
 
       .row
         .col-md-6.search-wrapper

app/views/layouts/devise.html.haml

@@ -11,6 +11,7 @@
         = render '/layouts/header'
 
     #wrapper.container-fluid
+      = render '/layouts/message'
 
       .row
         .col-md-6.search-wrapper

config/application.rb

@@ -24,5 +24,7 @@ module VenShop
     config.active_record.raise_in_transactional_callbacks = true
 
     config.active_job.queue_adapter = :sidekiq
+
+    config.autoload_paths += Dir["#{config.root}/app/services/**/*.rb"]
   end
 end