fohow_admin/app/models/order_base_detail.rb

# encoding:utf-8
class OrderBaseDetail < ActiveRecord::Base
  has_paper_trail
  self.table_name = "order_base_details"
  validates :order_no,:order_dt_id,:product_id, presence: true
  belongs_to :order, :foreign_key => :order_id


  def paid_shijian
    paidTime = 0
    order = Order.where("order_id = ?", self.order_no).first
    if !order.blank?
      paidTime=order.paied_at
    end
    return paidTime
  end

  rails_admin do
    navigation_label '订单基本明细'
    weight -300
    parent Order
    list do
      filters [:order_no,:product_id,:order_dt_id]
      # include_all_fields
      field :id
      field :order_no
      field :product_id
      field :title
      field :nums
      field :order_dt_id
      field :paid_time do
        filterable true
         formatted_value do
           #bindings[:object].order.paied_time
           (bindings[:object].order.paied_at == 0 || bindings[:object].order.paied_at == nil) ? Time.at(0) : Time.at(bindings[:object].order.paied_at)
         end
      end
      field :send
    end
    show do
      field :id
      field :order_no
      field :product_id
      field :title
      field :nums
      field :order_dt_id
      field :send
    end

    edit do
      field :id
      field :order_no
      field :product_id
      field :title
      field :nums
      field :order_dt_id
      field :send
    end

    export do
      include_all_fields
      field :wx_user_id do
        formatted_value do
          bindings[:object].order.wx_user_id
        end
      end
      field :order_state, :enum do
        filterable true
        enum do
          STATUS_ENUM
        end
      end
      field :paid_time
      field :pay_way, :enum do
        filterable true
        enum do
          PAY_WAY_ENUM
        end
      end
    end
  end
end