Ruby on rails Rails验证jquery上的字段隐藏/显示

我有一个复选框来显示送货地址如果一个项目有

菜单类型='sunch'

，表单的这部分将使用jQuery隐藏，直到选中复选框为止，但是如果选中复选框，我如何验证这些字段

看法

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听起来你在找。看起来像

 validates :delivery_line_1, presence: true, if: :lunch_delivery

class Order < ActiveRecord::Base
  attr_accessible :billing_line_1, :billing_line_2, :billing_line_3, :billing_postcode, :delivery_line_1, :delivery_line_2, :delivery_line_3, :delivery_postcode, :phone_number, :email, :first_name, :last_name, :lunch_delivery

  validates :first_name, presence: true
  validates :last_name, presence: true
  validates :email, presence: true
  validates :billing_line_1, presence: true
  validates :billing_postcode, presence: true
  validates :phone_number, presence: true
end

$("#order_lunch_delivery").click ->
  if $(this).is(":checked")
    $("#deliveryAddress").show()
  else
    $("#deliveryAddress").hide()
  return

 validates :delivery_line_1, presence: true, if: :lunch_delivery