Question

嘿伙计们，当我点击地方订单按钮到用户电子邮件ID时，我想在rails中发送电子邮件但是当我点击按钮undefined method 'items' for #<Order:0x6d83c48>时出现此错误这是我的邮件文件夹

中的order_mailer.rb

class OrderMailer < ActionMailer::Base
    default from: "gokuverma94@gmail.com"


    def order_confirmation order
        @order=order
        mail to: order.user.email, subject: "Your order (##{order.id})"
    end
end

这是我的orders_controller.rb

class OrdersController < ApplicationController

    def create
        @order_form=OrderForm.new(user: User.new(order_params[:user]),cart: @cart)
        if @order_form.save
            notify_user
            redirect_to root_path,notice:"Thank You for placing the order sir."
        else
        render "carts/checkout"
        end
    end

   private

    def notify_user
      OrderMailer.order_confirmation(@order_form.order).deliver  
    end

    def order_params
        params.require(:order_form).permit(
            user:[:name,:phone,:address,:city,:country,:postal_code,:email])
    end
end

最后是views / order_mailer文件夹中的order_confirmation.text.erb

<h2>Hello</h2><%=@order.user.name%>,
Thank you for placing an order. Here is a summary for order #<%=@order.id%>:
<% @order.items.each do |item|%>
*<%=item.quantity%><%=item.product.name%>($<%=item.total_price%>)
<%end%>
Total: $<%=@order.total_price%>

@ order.user.name工作正常，但是，我不知道为什么它找不到物品方法的顺序可以有人请告诉我它有什么问题因为我似乎无法弄清楚

cart.rb

class Cart
attr_reader :items

    def self.build_from_hash (hash)
        items= if hash["cart"] then 
            hash["cart"]["items"].map do |item_data|
            CartItem.new item_data["product_id"],item_data["quantity"]
            end
            else
            []
        end
        new items 
     end

    def initialize items=[]
        @items=items
    end

    def add_item (product_id)
        item=@items.find { |item| item.product_id == product_id}
        if item
            item.increment
        else
        @items << CartItem.new(product_id)
    end
    end

    def empty?
        @items.empty?
    end

    def count
        @items.length
    end

    def grand_total
        @items.inject(0){|sum,item| sum+item.total_price}
    end

    def serialize
        items = @items.map do |item|
            {
                "product_id" =>item.product_id,
                "quantity" => item.quantity
         }
        end
        {
                "items" => items
         }
    end
end

order_item.rb

class OrderItem < ApplicationRecord
  belongs_to :order
  belongs_to :product

    def total_price
        self.product.price*self.quantity
    end
end

cart_item.rb

 class CartItem
    attr_reader :product_id,:quantity
    def initialize (product_id,quantity=1)
        @product_id=product_id
        @quantity=quantity
    end
    def increment
        @quantity=@quantity+1
    end
    def product
        Product.find product_id
    end 
     def total_price
         product.price*quantity
     end
end

Answer 1

从您的模型数据订单中没有项目，因此您无法使用@order.items
将<% @order.items.each do |item|%>替换为<% @order.order_items.each do |item|%>

在rails

1 个答案: