Ruby on rails rails无法在include关联上与每个应用程序一起工作_Ruby On Rails_Activerecord

Ruby on rails rails无法在include关联上与每个应用程序一起工作

ruby-on-rails activerecord

Ruby on rails rails无法在include关联上与每个应用程序一起工作,ruby-on-rails,activerecord,Ruby On Rails,Activerecord,我有以下资料： order.rb belongs_to :user belongs_to :property has_many :order_lines, :dependent => :destroy order_line.rb belongs_to :order belongs_to :service belongs_to :status, :class_name => "SettingsOption" orders_controller.rb de

我有以下资料：

order.rb

  belongs_to :user
  belongs_to :property
  has_many :order_lines, :dependent => :destroy

order_line.rb

  belongs_to :order
  belongs_to :service
  belongs_to :status, :class_name => "SettingsOption"

orders_controller.rb

  def index
    @orders = Order.active_w_property.find_all_by_user_id(current_user.id,
        :include => {:order_lines => [:service, :status]})
  end

index.html.erb

...
<%= render :partial => 'order', :collection => @orders %>
...

  ←[4;36;1mOrder Load (2.0ms)←[0m   ←[0;1mSELECT ""very long query""
  ←[4;35;1mOrderLine Load (1.0ms)←[0m   ←[0mSELECT `order_lines`.* FROM `order_lines` WHERE (`order_lines`.order_id IN (10134,1
  ←[4;36;1mOrderLine Columns (5.0ms)←[0m   ←[0;1mSHOW FIELDS FROM `order_lines`←[0m
  ←[4;35;1mService Columns (14.0ms)←[0m   ←[0mSHOW FIELDS FROM `services`←[0m
  ←[4;36;1mService Load (3.0ms)←[0m   ←[0;1mSELECT * FROM `services` WHERE (`services`.`id` IN (6,7,8,9,1,2,3,4,10,5)) ←[0m
  ←[4;35;1mSettingsOption Columns (4.0ms)←[0m   ←[0mSHOW FIELDS FROM `settings_options`←[0m
  ←[4;36;1mSettingsOption Load (3.0ms)←[0m   ←[0;1mSELECT * FROM `settings_options` WHERE (`settings_options`.`id` = 167) ←[0m
Rendering template within layouts/application
Rendering myimmonatie/orders/index

_order.html.erb的日志

...
<% order.order_lines.each do |line| %>
  <% total = total + line.price %>
  <tr>
    <td>
      <%= line.service.option.nil? ?
            t(line.service.name) :
            [t(line.service.name), t(line.service.option)].join(" ") %>
    </td>
    <td><%= t(line.description) %></td>
    <td class="align-right"><%= currencify_price(line.price) %></td>
    <td class="align-center"><%= t(line.status.value) %></td>
  </tr>
<% end %>
...

Rendered myimmonatie/orders/_order (8.0ms)
  ←[4;36;1mOrderLine Load (0.0ms)←[0m   ←[0;1mSELECT * FROM `order_lines` WHERE (`order_lines`.order_id = 10112) ←[0m
  ←[4;35;1mCACHE (0.0ms)←[0m   ←[0mSELECT * FROM `services` WHERE (`services`.`id` = 1) ←[0m
  ←[4;36;1mCACHE (0.0ms)←[0m   ←[0;1mSELECT * FROM `settings_options` WHERE (`settings_options`.`id` = 167) ←[0m
  ←[4;35;1mCACHE (0.0ms)←[0m   ←[0mSELECT * FROM `services` WHERE (`services`.`id` = 5) ←[0m
  ←[4;36;1mCACHE (0.0ms)←[0m   ←[0;1mSELECT * FROM `settings_options` WHERE (`settings_options`.`id` = 167) ←[0m
  ←[4;35;1mCACHE (0.0ms)←[0m   ←[0mSELECT * FROM `services` WHERE (`services`.`id` = 3) ←[0m
  ←[4;36;1mCACHE (0.0ms)←[0m   ←[0;1mSELECT * FROM `settings_options` WHERE (`settings_options`.`id` = 167) ←[0m
  ←[4;35;1mCACHE (0.0ms)←[0m   ←[0mSELECT * FROM `services` WHERE (`services`.`id` = 2) ←[0m
  ←[4;36;1mCACHE (0.0ms)←[0m   ←[0;1mSELECT * FROM `settings_options` WHERE (`settings_options`.`id` = 167) ←[0m

对于控制器索引方法，所有包含的表都按预期加载。但是对于分部中的每个订单行，订单行将再次加载，尽管它们以前已加载。此外，每次都会查询服务（尽管来自缓存）。我怎样才能让一切都在没有新查询的情况下呈现

更新：使用rails 2.3.11

好消息是，在缓存响应时，active record不会每次都命中数据库