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我很难实现一个结账过程，一旦在购物车，用户可以结帐并发送订单。也许我需要一个订单模型和交易控制器？Rails 4：无法创建结帐
我只是不知道如何设置这些。目前，购物车可以运作，并且可以清理以及添加物品，但我不确定如何实施结帐和订单系统。
想法是：用户在购物车点击结账按钮，然后被采取检查他/她可以输入付款信息，然后被带回到产品页面。问题是，我不确定如何将购物车与结帐和付款流程连接成一个简单易用的系统。
任何帮助将不胜感激，我仍然是非常新的。谢谢。
class CartController < ApplicationController
before_action :authenticate_user!, except: [:index]
def add
id = params[:id]
if session[:cart] then
cart = session[:cart]
else
session[:cart] = {}
cart = session[:cart]
end
if cart[id] then
cart[id] = cart[id] + 1
else
cart[id] = 1
end
redirect_to :action => :index
flash[:notice] = 'added to cart'
end
def clearCart
session[:cart] = nil
redirect_to :action => :index
flash[:notice] = 'cart cleared'
end
def index
if session[:cart] then
@cart = session[:cart]
else
@cart = {}
end
end
end
class ProductsController < ApplicationController
before_action :set_product, only: [:show, :edit, :update, :destroy]
def index
@products = Product.all
end
def show
end
def new
@product = Product.new
end
def edit
end
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
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
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
def set_product
@product = Product.find(params[:id])
end
def product_params
params.require(:product).permit(:title, :description, :price, :category, :subcategory)
end
end
class Product < ActiveRecord::Base
end
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
end
视图/购物车/ index.html.erb
<h1>Your Cart</h1>
<% if @cart.empty? %>
<p> Your cart is currently empty</p>
<% else %>
<%= link_to 'Empty your Cart', cart_clear_path %>
<br><br>
<% end %>
<% total = 0 %>
<ul>
<% @cart.each do | id, quantity | %>
<% product = Product.find_by_id(id) %>
<li>
<%= link_to product.title, product %>
<p><%= product.description %></p>
<p><%= number_to_currency product.price %></p>
<p>Quantity: <%= quantity %></p>
</li>
<% total += quantity * product.price %>
<% end %>
<p><b><%= number_to_currency total, :unit => '$' %> </b></p>
</ul>
我已经试过下面
order.rb
class Order < ActiveRecord::Base
belongs_to :cart
end
cart.rb
class Cart < ActiveRecord::Base
has_many :line_items
has_one :order
end
Orders_Controller.rb
class OrdersController < ApplicationController
before_action :set_order, only: [:show, :edit, :update, :destroy]
# GET /orders
# GET /orders.json
def index
@orders = Order.all
end
# GET /orders/1
# GET /orders/1.json
def show
end
# GET /orders/new
def new
@order = Order.new
end
# GET /orders/1/edit
def edit
end
# POST /orders
# POST /orders.json
def create
@order = Order.new(order_params)
respond_to do |format|
if @order.save
format.html { redirect_to @order, notice: 'Order was successfully created.' }
format.json { render :show, status: :created, location: @order }
else
format.html { render :new }
format.json { render json: @order.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /orders/1
# PATCH/PUT /orders/1.json
def update
respond_to do |format|
if @order.update(order_params)
format.html { redirect_to @order, notice: 'Order was successfully updated.' }
format.json { render :show, status: :ok, location: @order }
else
format.html { render :edit }
format.json { render json: @order.errors, status: :unprocessable_entity }
end
end
end
# DELETE /orders/1
# DELETE /orders/1.json
def destroy
@order.destroy
respond_to do |format|
format.html { redirect_to orders_url, notice: 'Order was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_order
@order = Order.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def order_params
params.require(:order).permit(:new, :cart_id, :ip_address, :first_name, :last_name, :user_id)
end
end
添加到结账的意见/车/ index.html.erb
<%= link_to "Checkout", new_order_path, class: "btn btn-primary" %>
我在这之后做什么？