1個錯誤的多參數的分配從日期

Question

屬性我收到此錯誤

1 error(s) on assignment of multiparameter attributes 

而且我敢肯定它是從date_selector。

這裏是我的模型

class Order < ActiveRecord::Base 
    attr_accessor :card_type, :card_number, :card_verification, 
    :card_expires_on # I do not have these fields in my database 
    attr_accessible :cart_id, :card_expires_on, :card_type, :first_name, 
    :ip_address, :last_name,:card_number, :card_verification, :zip, :address, 
    :state, :city 

    def credit_card 
    @credit_card ||= ActiveMerchant::Billing::CreditCard.new(
     :brand    => card_type, 
     :number    => card_number, 
     :verification_value => card_verification, 
     :month    => card_expires_on.month, 
     :year    => card_expires_on.year, 
     :first_name   => first_name, 
     :last_name   => last_name 
    ) 
    end 
end 

，這是參與

def create 
    @user = current_user 
    @cart = current_cart 
    @order = @cart.build_order(params[:order]) # here is where the error is 
    @order.user_id = @user.id 
    @order.ip_address = request.remote_ip 
    ... 
end 

這裏控制器的部分是車型號

class Cart < ActiveRecord::Base 
    has_many :line_items, :dependent => :destroy 
    has_one :order 
    belongs_to :user 

    def add_product(product_id) 
    current_item = line_items.find_by_product_id(product_id) 
    if current_item 
     current_item.quantity += 1 
    else 
     current_item = line_items.build(:product_id => product_id) 
    end 
    current_item 
    end 

    def total_price 
    line_items.to_a.sum { |item| item.total_price} 
    end 

    def total_price_in_cents 
    return Integer(total_price * 100) 
    end 
end 

而且繼承人的訂單隨着order.rb ...再次感謝您的幫助！

<div class="field"> 
    <%= f.label :first_name %><br /> 
<%= f.text_field :first_name %> 
</div> 
<div class="field"> 
    <%= f.label :last_name %><br /> 
    <%= f.text_field :last_name %> 
</div> 
<div class="field"> 
    <%= f.label :address %> 
    <%= f.text_field :address %> 
</div> 
<div class="field"> 
    <%= f.label :city %> 
    <%= f.text_field :city %> 
</div> 
<div class="field"> 
    <%= f.label :state %> 
    <%= f.select :state, @order.us_states %> 
</div> 
<div class="field"> 
    <%= f.label :zip %> 
    <%= f.text_field :zip %> 
</div> 
<div class ="field"> 
    <%= f.label :card_type %> <br /> 
    <%= f.select :card_type, [["Visa", "visa"], ["MasterCard", "master"], ["Discover", "discover"], ["American Express", "american_express"]] %> 
</div> 
<div class="field"> 
    <%= f.label :card_number %><br /> 
    <%= f.text_field :card_number %> 
</div> 
<div class="field">ry 
    <%= f.label :card_verification, "Card Verification (CVV)" %><br /> 
    <%= f.text_field :card_verification %> 
</div> 
<div class="field"> 
    <%= f.label :card_expires_on %><br /> 
    <%= f.date_select :card_expires_on, :discard_day => true, :start_year => Date.today.year, :end_year => (Date.today.year+10), :add_month_numbers => true %> 
</div> 
<div class="actions"> 
    <%= f.submit %> 
</div> 

Answer 1

您是否試過@order = @ cart.orders.new（params [：order]）？

在訂單和車之間有一個一對一關係的情況下，這將是： @ cart.order.new（PARAMS [：爲了]）