我正在建立一個有每個用戶物品和訂單的商店。 現在我想將每個訂單與current_user相關聯。就是那個正在下訂單的人。 我想如何關聯模型,但我無法弄清楚在創建訂單時將user_id保存爲訂單模型的內容。我正在使用標準的Devise引擎。如何將訂單與current_user關聯?
這是我的模型:
Order.rb
belongs_to :order_status
belongs_to :user
has_many :order_items
before_create :set_order_status
before_save :update_subtotal
def subtotal
order_items.collect { |oi| oi.valid? ? (oi.quantity * oi.unit_price) : 0 }.sum
end
private
def set_order_status
self.order_status_id = 1
end
def update_subtotal
self[:subtotal] = subtotal
end
end
order_item.rb
class OrderItem < ActiveRecord::Base
belongs_to :product
belongs_to :order
validates :quantity, presence: true, numericality: { only_integer: true, greater_than: 0 }
validate :product_present
validate :order_present
before_save :finalize
def unit_price
if persisted?
self[:unit_price]
else
product.price
end
end
def total_price
unit_price * quantity
end
private
def product_present
if product.nil?
errors.add(:product, "is not valid or is not active.")
end
end
def order_present
if order.nil?
errors.add(:order, "is not a valid order.")
end
end
def finalize
self[:unit_price] = unit_price
self[:total_price] = quantity * self[:unit_price]
end
end
而在user.rb我:has_one :order
這是我的OrderItemsController:
class OrderItemsController < ApplicationController
def create
@order = current_order
@order_item = @order.order_items.new(order_item_params)
@order.save
session[:order_id] = @order.id
end
def update
@order = current_order
@order_item = @order.order_items.find(params[:id])
@order_item.update_attributes(order_item_params)
@order_items = @order.order_items
end
def destroy
@order = current_order
@order_item = @order.order_items.find(params[:id])
@order_item.destroy
@order_items = @order.order_items
end
private
def order_item_params
params.require(:order_item).permit(:quantity, :product_id)
end
end
好吧我允許的參數,但究竟應該寫在創建行動來設置user_id?因爲我已經在創建動作中聲明params:@order_item = @ order.order_items.new(order_item_params)所以它會讓我困惑。 –
您是試圖將它保存在order或order_items上嗎? – toddmetheny
是的,我想保存它在訂單... –