如何修复order_form中的'wrong number of arguments (1 for 0)'

Question

我的应用程序在一个小时前工作得很好，然后我添加了两列，:pick_up和:send到'订单'表，之后我得到了这个错误

wrong number of arguments (1 for 0)

我不明白为什么会导致这个错误。

orders_controller.rb:

class OrdersController < ApplicationController
  include CurrentCart
  before_action :set_cart, only: [:new, :create]
  before_action :set_order, only: [:show, :edit, :destroy]
  def index
    @orders = Order.all? 
  end
  def new
    @images  = ["1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg"]
    @random_no = rand(5)
    @random_image = @images[@random_no]
    if @cart.product_items.empty?
      redirect_to root_url, notice: 'Your Cart is Empty'
      return
    end
    @order = Order.new
    @client_token = Braintree::ClientToken.generate
  end
  def create
    @order = Order.new(order_params)
    if @order.save
      charge
      if @result.success?
        @order.add_product_items_from_cart(@cart)
      Cart.destroy(session[:cart_id])
      session[:cart_id] = nil
      OrderNotifier.received(@order).deliver 
      redirect_to root_url, notice: 'Thank You for Your Order'
      else
        flash[:error] = 'Please Check Your Cart'
        redirect_to root_url, alert: @result.message
        @order.destroy
      end
    else
      @client_token = Braintree::ClientToken.generate
      render :new
    end
  end

  def show
  end

  def destroy
    @order.destroy
    redirect_to root_url, notice: 'Order deleted'
  end
  private
  def set_order
    @order = Order.find(params[:id])
  end
  def order_params
    params.require(:order).permit(:name, :email, :address, :city, :country, :pick_up, :send)
  end
  def charge
    @result = Braintree::Transaction.sale(
        amount: @cart.total_price_usd,
        payment_method_nonce: params[:payment_method_nonce] )
  end
end

这是_form.html。订单动词:

<%= form_for @order do |f| %>
  <%= render 'msg' %>
  <div class="container">
    <div class="col-md-10">
      <h3>Please Enter Your Details</h3>
    </div>

  <div class="form-group">
    <div class="col-md-10">
      <%= f.label :name %>
      <%= f.text_field :name, size: 40, class: 'form-control' %>
    </div>
  </div>  
  <div class="form-group">
    <div class="col-md-10">
      <%= f.label :email%>
      <%= f.email_field :email, size: 40, class: 'form-control' %>
    </div>
  </div>  
  <div class="form-group">
    <div class="col-md-10">
      <%= f.label :address %>
      <%= f.text_area :address, cols: 40, class: 'form-control' %>
    </div>
  </div>  
  <div class="form-group">
    <div class="col-md-10">
      <%= f.label :city %>
      <%= f.text_field :city, size: 40, class: 'form-control' %>
    </div>
  </div>  
  <div class="form-group">
    <div class="col-md-5">
      <%= f.label :country %>
      <%= f.country_select :country, { priority_countries: [ "IS", "US", "DE", "ES", "PT" ]}, { class: "form-control" }%>
    </div>

  </div>  

  <div class="form-group">
    <div id="payment-form"></div>
    <div class="col-md-10">
      <br>
      <%= f.submit 'Place Order', class: 'buttons' %>
    </div>
  </div>  
  </div>
<% end %>

schema.rb的顺序部分:

create_table "orders", force: :cascade do |t|
  t.string   "name"
  t.string   "email"
  t.text     "address"
  t.string   "city"
  t.string   "country"
  t.datetime "created_at",                 null: false
  t.datetime "updated_at",                 null: false
  t.boolean  "shipped",    default: false
  t.string   "pick_up"
  t.string   "send"
end

Answer 1

我担心send不是一个幸运的标识符名称，因为send方法。

http://ruby-doc.org/core-2.3.1/Object.html method-i-send