ruby-on-rails-3.1 - active_admin - 显示属于另一个项目的项目列表

Question

我试图以某种方式显示 line items为 order在 active_admin order show page ， 没运气..

以下是模型之间的关系:

order.rb

class Order < ActiveRecord::Base
  has_many :line_items, :dependent => :destroy
  # ...
  validates :name, :address, :email, :presence => true
  validates :pay_type, :inclusion => PAYMENT_TYPES
end

line_item.rb

class LineItem < ActiveRecord::Base
  belongs_to :order
  belongs_to :product
  belongs_to :cart

  def total_price
    product.price * quantity
  end

end

active_admin order.rb

ActiveAdmin.register Order do

  show do
    attributes_table :name, :email, :address, :pay_type, :created_at, :updated_at
  end
end

active_admin line_item.rb

class LineItem < ActiveRecord::Base
  belongs_to :order
  belongs_to :product
  belongs_to :cart

  def total_price
    product.price * quantity
  end

end

当我单击显示订单时，它必须显示此订单的项目.. 在应用程序的显示文件中，我是这样做的

<%= render @order.line_items %>

_line_items.html.erb

<!-- START_HIGHLIGHT -->
<% if line_item == @current_item %>
    <tr id="current_item">
  <% else %>
<tr>
<% end %>
<!-- END_HIGHLIGHT -->
  <td><%= line_item.quantity %>&times;</td>
  <td><%= line_item.product.title %></td>
  <td class="item_price"><%= number_to_currency(line_item.total_price) %></td>
</tr>

项目在页面中，但在 Active_Admin 中，我不知道如何使其工作.. 请帮忙。感谢您的时间。

已解决

感谢bruno077，我终于在ActiveAdmin中按照show_page的顺序获得了line_items

 show do |order|

  panel "Customer details" do
    attributes_table_for order, :first_name, :last_name, :card_type, :created_at, :ip_address
  end

  panel("Products for this order") do
    table_for(order.line_items) do
      column "Product" do |item| 
        item.product.title
      end
      column "Price" do |item| 
        item.product.price
      end
      column "Quantity" do |item| 
        item.quantity
      end
    end
  end
end

我现在得到了产品的 ID，但离我想要的东西不远了。干杯!

Answer 1

像这样的事情可能会奏效:

ActiveAdmin.register Order do
  show do |order|
    div do      
      panel("Items") do
        table_for(order.line_items) do
          column :quantity
          column "Title" do |i| 
            i.product.title
          end
          column "Price" do |i| 
            number_to_current(i.total_price)
          end
        end
      end
    end
  end
end

另一个不相关的例子可能会给你一个提示:

  # => Show
  show :title => :date do |gallery|
    panel "Galería" do
      attributes_table_for gallery, :name, :description, :date
    end

    panel "Fotos" do
      table_for(gallery.gallery_files) do
        column "Título", :title
        column "Fecha", :date
        column "Foto" do |image|
          image_tag image.file.url(:thumb).to_s
        end
      end
    end

  end