Rails的管理 - 删除相关对象

问题描述

我用我的网站之一。这是伟大的，到目前为止，但我无法弄清楚如何从一个编辑页面中删除相关的对象。

I'm using Rails Admin on one of my sites. It's great so far, but I can't figure out how to remove a related object from an edit page.

例如：
我有两个型号财产和PropertyImage。

Example:I have two models Property and PropertyImage.

class Property
  has_many :property_images, :dependent => :destroy
end

class PropertyImage
  belongs_to :property
end

我可以去编辑屏幕无论是模型的实例，我可以删除他们的列表视图PropertyImages。但是，当我编辑属性，我希望能够删除与它相关的PropertyImage。有没有办法打开在rails_admin此功能？

I can go to the edit screen for an instance of either model, and I can delete PropertyImages from their list view. But when I edit a Property, I want to be able to delete a PropertyImage that's associated with it. Is there a way to turn on this functionality in rails_admin?

这是我可以看到。

请注意：删除图片按钮，是不是我要找的 - 它只是因为有一个上传关联像场。它只编辑PropertyImage。

Note: the "Delete Image" button isn't what I'm looking for - it's just because there's an upload association to the Image field. It only edits the PropertyImage.

推荐答案

我有同样的问题，并发现阅读您的问题后，对我的作品的答案。

I had this same question, and found an answer that works for me after reading your question.

为了正确设置了PropertyImage从所有制形式的编辑，你可能要指定它可以与嵌套形式工作：

In order to properly setup up the editing of PropertyImage from the Property form, you probably want to specify that it can work with the nested form:

# property.rb
class Property
  has_many :property_images, :dependent => :destroy
  accepts_nested_attributes_for :property_images, :allow_destroy => true
end

包括：allow_destroy 选项应该删除选项显示为嵌套的项目

Including the :allow_destroy option should make the delete option show up for the nested item.

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