Merge pull request #8 from KOH6/checkout

チェックアウト機能実装

app/controllers/admin/application_controller.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Admin
+  class ApplicationController < ApplicationController
+    before_action :basic_auth
+
+    private
+
+    def basic_auth
+      authenticate_or_request_with_http_basic do |username, password|
+        username == ENV['BASIC_AUTH_USER'] && password == ENV['BASIC_AUTH_PASSWORD']
+      end
+    end
+  end
+end

app/controllers/admin/orders_controller.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Admin
+  class OrdersController < Admin::ApplicationController
+    def index
+      @orders = Order.all.order(created_at: :desc)
+    end
+
+    def show
+      @order = Order.find(params[:id])
+      @ordered_cart_products = @order.cart.cart_products.order(created_at: :desc)
+      @total = @ordered_cart_products.inject(0) { |total, cart_product| total + cart_product.subtotal }
+    end
+  end
+end

app/controllers/admin/products_controller.rb

@@ -1,12 +1,11 @@
 # frozen_string_literal: true
 
 module Admin
-  class ProductsController < ApplicationController
-    before_action :basic_auth
+  class ProductsController < Admin::ApplicationController
     before_action :set_product, only: %i[show update destroy]
 
     def index
-      @products = Product.kept.order(updated_at: :desc)
+      @products = Product.kept.order(created_at: :desc)
     end
 
     def show; end

app/controllers/application_controller.rb

@@ -12,4 +12,8 @@ def set_session_cart_id
   def set_cart_size
     @cart_size = Cart.find(session[:cart_id]).cart_products.size
   end
+
+  def set_cart
+    @cart = Cart.find(session[:cart_id])
+  end
 end

app/controllers/cart_products_controller.rb

@@ -1,23 +1,23 @@
 # frozen_string_literal: true
 
 class CartProductsController < ApplicationController
-  before_action :set_cart_id
+  before_action :set_cart
 
   def index
-    @cart_products = Cart.find(@cart_id).cart_products.order(created_at: :desc)
+    @cart_products = Cart.find(@cart.id).cart_products.order(created_at: :desc)
     @total = @cart_products.inject(0) { |total, cart_product| total + cart_product.subtotal }
   end
 
   def create
     product_id = params[:product_id]
     quantity = params[:quantity].to_i
-    cart_product = CartProduct.find_by(product_id:, cart_id: @cart_id)
+    cart_product = CartProduct.find_by(product_id:, cart_id: @cart.id)
 
     if cart_product
       cart_product.increment(:quantity, quantity)
       cart_product.save
     else
-      CartProduct.create(product_id:, cart_id: @cart_id, quantity:)
+      CartProduct.create(product_id:, cart_id: @cart.id, quantity:)
     end
     redirect_to request.referer
   end
@@ -26,10 +26,4 @@ def destroy
     CartProduct.find(params[:id]).destroy
     redirect_to request.referer
   end
-
-  private
-
-  def set_cart_id
-    @cart_id = session[:cart_id]
-  end
 end

app/controllers/orders_controller.rb

@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+class OrdersController < ApplicationController
+  before_action :set_cart
+  before_action :set_cart_products, only: %i[index create]
+
+  def index
+    @order = Order.new
+  end
+
+  def create
+    @order = Order.new(order_params)
+    @order[:cart_id] = @cart.id
+
+    error_messages = @cart.set_validate_error_messages
+    if error_messages.size.positive?
+      flash.now['danger'] = error_messages.join('<br/>')
+      render :index
+      return
+    end
+
+    if @order.save
+      session[:cart_id] = nil
+      flash[:success] = '購入ありがとうございます'
+      redirect_to products_path
+    else
+      render :index
+    end
+  end
+
+  private
+
+  def order_params
+    params.require(:order).permit(%i[last_name first_name user_name email country prefecture zip_code address1 address2
+                                     credit_name credit_number credit_expiration credit_cvv])
+  end
+
+  def set_cart_products
+    @cart_products = @cart.cart_products.order(created_at: :desc)
+    @total = @cart_products.inject(0) { |total, cart_product| total + cart_product.subtotal }
+  end
+end

app/controllers/products_controller.rb

@@ -2,7 +2,7 @@
 
 class ProductsController < ApplicationController
   def index
-    @products = Product.kept.order(updated_at: :desc)
+    @products = Product.kept.order(created_at: :desc)
   end
 
   def show

app/mailers/application_mailer.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
 class ApplicationMailer < ActionMailer::Base
-  default from: '[email protected]'
+  default from: ENV['EMAIL']
   layout 'mailer'
 end

app/mailers/order_mailer.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class OrderMailer < ApplicationMailer
+  helper ApplicationHelper
+
+  def complete(order:)
+    @order = order
+    recipient = @order.email
+    @ordered_cart_products = @order.cart.cart_products.order(created_at: :desc)
+    @total = @ordered_cart_products.inject(0) { |total, cart_product| total + cart_product.subtotal }
+    mail(to: recipient, subject: '注文内容ご確認')
+  end
+end

app/models/cart.rb

@@ -3,4 +3,25 @@
 class Cart < ApplicationRecord
   has_many :cart_products, dependent: :destroy
   has_many :products, through: :cart_products
+
+  def set_validate_error_messages
+    messages = []
+    messages << 'カートに商品が入っていません。' if cart_products.empty?
+
+    cart_products
+      .select { |cart_product| cart_product.quantity > cart_product.product.stock }
+      .map do |cart_product|
+        product = cart_product.product
+        messages << "#{product.name}が注文可能数を超えています。最大注文可能数：#{product.stock}個"
+      end
+
+    messages
+  end
+
+  def decrease_product_stock
+    cart_products.each do |cart_product|
+      quantity = cart_product.quantity
+      Product.update(cart_product.product.id, stock: cart_product.product.stock - quantity)
+    end
+  end
 end

app/models/order.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class Order < ApplicationRecord
+  belongs_to :cart
+
+  with_options presence: true do
+    validates :last_name
+    validates :first_name
+    validates :user_name
+    validates :email
+    validates :country
+    validates :prefecture
+    validates :zip_code
+    validates :address1
+    validates :address2
+    validates :credit_name
+    validates :credit_number
+    validates :credit_expiration
+    validates :credit_cvv
+  end
+
+  before_create do
+    cart.decrease_product_stock
+    OrderMailer.complete(order: @order).deliver_later
+  end
+end

app/views/admin/orders/index.html.erb

@@ -0,0 +1,40 @@
+<!-- Navigation-->
+<%= render 'admin/shared/navigation' %>
+<!-- Header-->
+<header class="text-center py-5 my-5">
+  <h1 class="display-6 fw-bolder">購入明細一覧</h1>
+</header>
+<div class="container px-4 px-lg-5 mb-5">
+  <div class="table-responsive">
+    <table class="table table-striped ">
+      <thead>
+        <tr>
+          <th scope="col">ID</th>
+          <th scope="col">お名前</th>
+          <th scope="col">メールアドレス</th>
+          <th scope="col">お届け先</th>
+          <th scope="col">購入日時</th>
+        </tr>
+      </thead>
+      <tbody>
+        <% @orders.each do |order| %>
+          <tr>
+            <th scope="row"><%= order.id %></th>
+            <td>
+              <%= link_to "#{order.last_name} #{order.first_name}様", admin_order_path(order), class: "link-dark" %>
+            </td>
+            <td><%= order.email %></td>
+            <td><%= "#{order.address1} #{order.address2}" %></td>
+            <td><%= l order.created_at %></td>
+          </tr>
+        <% end %>
+      </tbody>
+    </table>
+  </div>
+</div>
+<!-- Footer-->
+<footer class="py-5 bg-dark">
+  <div class="container">
+    <p class="m-0 text-center text-white">Copyright &copy; KOH's Shop 2023</p>
+  </div>
+</footer>

app/views/admin/orders/show.html.erb

@@ -0,0 +1,23 @@
+<!-- Navigation-->
+<%= render 'admin/shared/navigation' %>
+<!-- Header-->
+<header class="text-center py-5 my-5">
+  <h1 class="display-6 fw-bolder">購入明細詳細</h1>
+</header>
+<div class="container px-4 px-lg-5 mb-5">
+  <div class="row gx-4 gx-lg-5 align-items-center">
+    <h1 class="display-5 fw-bolder"><%= "#{@order.last_name} #{@order.first_name}様" %></h1>
+    <p class="lead">メールアドレス：<%= @order.email %></p>
+    <p class="lead">お届け先：<%= "#{@order.address1} #{@order.address2}" %></p>
+    <h3 class="fw-bolder">クレジットカード情報</h3>
+    <p class="lead">名義：<%= @order.credit_name %></p>
+    <p class="lead">有効期限：<%= @order.credit_expiration %></p>
+  </div>
+  <%= render 'shared/ordered_cart_products', :ordered_cart_products => @ordered_cart_products, :total => @total %>
+</div>
+<!-- Footer-->
+<footer class="py-5 bg-dark">
+  <div class="container">
+    <p class="m-0 text-center text-white">Copyright &copy; KOH's Shop 2023</p>
+  </div>
+</footer>

app/views/admin/products/_product.html.erb

@@ -10,7 +10,13 @@
           <%= link_to product.name, admin_product_path(product), class: "link-dark" %>
         </h5>
         <!-- Product price-->
-        <%= convert_to_jpy(product.price) %>
+        <div>
+          <%= convert_to_jpy(product.price) %>
+        </div>
+        <!-- Product stock-->
+        <div>
+          在庫数<%= product.stock %>
+        </div>
       </div>
     </div>
     <!-- Product actions-->

app/views/admin/products/edit.html.erb

@@ -1,5 +1,5 @@
 <!-- Navigation-->
-<%= render 'navigation' %>
+<%= render 'admin/shared/navigation' %>
 <!-- ErrorMessages-->
 <% if @updated_product %>
   <%= render 'shared/error_messages', :resource => @updated_product %>

app/views/admin/products/index.html.erb

@@ -1,5 +1,5 @@
 <!-- Navigation-->
-<%= render 'navigation' %>
+<%= render 'admin/shared/navigation' %>
 <!-- Flash-->
 <%= render 'shared/flash' %>
 <!-- Header-->

app/views/admin/products/new.html.erb

@@ -1,5 +1,5 @@
 <!-- Navigation-->
-<%= render 'navigation' %>
+<%= render 'admin/shared/navigation' %>
 <!-- ErrorMessages-->
 <%= render 'shared/error_messages', :resource => @product %>
 <!-- Header-->

app/views/admin/products/show.html.erb

@@ -1,8 +1,8 @@
 <!-- Navigation-->
-<%= render 'navigation' %>
+<%= render 'admin/shared/navigation' %>
 <!-- Display alert if product is discarded-->
 <% if @product.discarded? %>
-  <p class="text-center alert alert-danger">削除済みの商品のため編集できません</p>
+  <p class="text-center alert alert-danger mt-5">削除済みの商品のため編集できません</p>
 <% end %>
 <!-- Product section-->
 <section class="py-5 my-5">

app/views/admin/products/_navigation.html.erb → app/views/admin/shared/_navigation.html.erb

@@ -2,7 +2,7 @@
   <div class="container px-4 px-lg-5">
     <%= link_to "管理者用設定", admin_products_path, class: "navbar-brand fw-bolder" %>
     <div class="justify-content-beetween">
-      <%= link_to "購入明細一覧", admin_products_path, class: "btn btn-primary mt-auto" %>
+      <%= link_to "購入明細一覧", admin_orders_path, class: "btn btn-primary mt-auto" %>
       <%= link_to "新規作成", new_admin_product_path, class: "btn btn-primary mt-auto" %>
     </div>
   </div>