Ruby on rails Rails 4-BookingsController中的NoMethodError#使用嵌套资源时创建

我正在使用RubyonRails 4.1为我的示例项目创建一个机票预订应用程序。三是三种模式——活动、门票和预订。活动有许多门票和预订。门票有很多预订，属于活动。预订属于活动和门票

下面是嵌套管线的外观：

resources :events do
  resources :tickets
  resources :bookings
end

票务控制器工作正常，以下是控制器代码：

class TicketsController < ApplicationController
def index
    @event = Event.find(params[:event_id])
    @tickets = @event.tickets.all
end

def show
    @event = Event.find(params[:event_id])
    @ticket = @event.tickets.find(params[:id])
end

def new
    @event = Event.find(params[:event_id])
    @ticket = Ticket.new
end

def create
    @event = Event.find(params[:event_id])
    @ticket = @event.tickets.create(ticket_params)
    if @ticket.save
        redirect_to [@event, @ticket]
    else
        render 'new'
    end
end

def edit
    @event = Event.find(params[:event_id])
    @ticket= @event.tickets.find(params[:id])
end

def update
    @event = Event.find(params[:event_id])
    @ticket = @event.tickets.find(params[:id])

    if @ticket.update(ticket_params)
        redirect_to [@event, @ticket]
    else
        render 'edit'
    end
end

def destroy
    @event = Event.find(params[:event_id])
    @ticket = @event.tickets.find(params[:id])
    @ticket.destroy
    redirect_to event_tickets_path
end


private

def ticket_params
    params.require(:ticket).permit(:ticket_name, :booking_start_date, :booking_end_date, :ticket_price, :ticket_quantity, :minimum_quantity, :maximum_quantity, :terms_conditions, :more_information)
end

class ticketcontroller

结束

但是，当我按照步骤创建预订控制器时，会收到一条错误消息：

NoMethodError in BookingsController#create

undefined method `bookings' for #<Event:0x007f84dd6cc7a8>

BookingController中的命名错误#创建 未定义的方法“预订”# 预订控制器如下所示：

class BookingsController < ApplicationController
def new
 @event = Event.find(params[:event_id])
 @booking = Booking.new
end

def create
  @event = Event.find(params[:event_id])
  @booking = @event.bookings.create(booking_params)
  if @booking.save
    redirect_to [@event, @booking]
  else
    render 'new'
  end
end

def show
  @event = Event.find(params[:event_id])
  @booking = @event.bookings.find(params[:id])
end

private

def booking_params
  params.require(:booking).permit(:buyer_name, :email, :mobile, :address, :order_quantity)
end
end

class BookingsController

---

有人能告诉我我做错了什么吗

我认为您忘了声明活动和预订之间的关系，在活动方面：确保您有以下

多个
：

class Event < ActiveRecord::Base
  has_many :bookings
  # etc.

class事件
您是否在
活动
模型中定义了
有多少：预订
？非常感谢！我错过了那个。