checkout for all items in shopping cart

README.md

@@ -196,3 +196,18 @@ Items:
   <%= link_to "x", remove_from_cart_path(cart_item), method: :delete %>
 <% end %>
 ```
+
+## transform items from shopping cart into stripe line_items
+product.rb
+```
+def to_builder
+	Jbuilder.new do |product|
+	  product.price stripe_price_id
+	  product.quantity 1
+	end
+end
+```
+checkout_controller
+```
+@cart.collect { |item| item.to_builder.attributes! },
+```

app/controllers/checkout_controller.rb

@@ -1,14 +1,10 @@
 class CheckoutController < ApplicationController
 
   def create
-    product = Product.find(params[:id])
     @session = Stripe::Checkout::Session.create({
       customer: current_user.stripe_customer_id,
       payment_method_types: ['card'],
-      line_items: [{
-        price: product.stripe_price_id,
-        quantity: 1
-      }],
+      line_items: @cart.collect { |item| item.to_builder.attributes! },
       mode: 'payment',
       success_url: success_url + "?session_id={CHECKOUT_SESSION_ID}",
       cancel_url: cancel_url,

app/models/product.rb

@@ -6,6 +6,13 @@ def to_s
     name
   end
 
+  def to_builder
+    Jbuilder.new do |product|
+      product.price stripe_price_id
+      product.quantity 1
+    end
+  end
+
   after_create do
     product = Stripe::Product.create(name: name)
     price = Stripe::Price.create(product: product, unit_amount: self.price, currency: "usd")

app/views/layouts/application.html.erb

@@ -29,6 +29,10 @@
       <%= product.name %>
       <br>
     <% end %>
+    <% if @cart.present? %>
+      <%= @cart.collect { |item| item.to_builder.attributes! } %>
+      <%= button_to "Buy now!", checkout_create_path, remote: true, data: { disable_with: "validating..."} %>
+    <% end %>
     <hr>
     <%= yield %>
   </body>

app/views/products/index.html.erb

@@ -10,7 +10,6 @@
       <th>Stripe Product Id</th>
       <th>Stripe Price Id</th>
       <th>Shopping cart</th>
-      <th>PAYMENT</th>
       <th>Sales count</th>
       <th colspan="3"></th>
     </tr>
@@ -30,7 +29,6 @@
             <%= button_to "Add to cart", add_to_cart_path(product) %>
           <% end %>
         </td>
-        <td><%= button_to "Buy now!", checkout_create_path, params: {id: product.id}, remote: true, data: { disable_with: "validating..."} %></td>
         <td><%= product.sales_count %></td>
         <td><%= link_to 'Show', product %></td>
         <td><%= link_to 'Edit', edit_product_path(product) %></td>