如何更新深度嵌套模式，接受嵌套的属性？ [英] How to update deeply nested models that accept nested attributes?

问题描述

我有一个问题几乎等于<一个href="http://stackoverflow.com/questions/20653519/couldnt-find-model-with-id-14-for-property-with-id-1#comment38270153_20653519">this 之一。

我有三个型号叫他们父母，子女，孙子女。

 父
的has_many：儿童
的has_many：孙子，通过：儿童
 

在创建一个家长，我通过收集复选框分配的孩子吧。现在我需要更新父窗体上孙子关联。我设置了

  accepts_nested_attributes_for：儿童
 

和我能就像我需要更新的属性。

当我尝试更新父记录的问题就出现了。如果我删除一个孩子（通过unclicking它的复选框），我最终的误差

 的ActiveRecord :: RecordNotFound
找不到孩子与ID =＃为家长与ID =＃
 

尽管这种关联在数据库中明确界定。在进一步的调查，我发现了错误，从

未来

 的ActiveRecord（4.1.1）的lib / active_record / nested_attributes.rb：545：在'raise_nested_attributes_record_not_found！
 

有谁知道如何解决这个问题？

红宝石1.9.3，Rails的4.1.1

在我的控制器我有

  params.require（：家长）.permit（：姓名，child_attributes：[：ID，：grandchild_id]：child_ids =＆GT; []）
 

解决方案

显然，这源于与使用现有的IDS在HABTM关系的一个安全漏洞。参见：

https://groups.google.com/forum/#​​！主题/ ruby​​onrails核心/ uWQVCKqQMVU

的https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/-fkT0yja_gw

该功能将不会被重新

I have a problem mostly identical to this one.

I have three models call them Parent, Child, Grandchild.

Parent
has_many :children
has_many :grandchildren, through: children

When creating a parent, I assign children to it via collection check boxes. Now I need to update grandchildren association on the parent form. I set up

accepts_nested_attributes_for :children

and I am able to update the attributes just like I need to.

The problem arises when I attempt to update a parent record. If I remove a child (through unclicking it's checkbox) I end up with the error

ActiveRecord::RecordNotFound
Couldn't find Child with ID=# for Parent with ID=#

even though this association is well defined in the database. On further investigation I found out the error was coming from

activerecord (4.1.1) lib/active_record/nested_attributes.rb:545:in `raise_nested_attributes_record_not_found!'

Does anyone know how to solve this problem?

Ruby 1.9.3, Rails 4.1.1

In my controller I have

      params.require(:Parent).permit(:name, child_attributes: [:id, :grandchild_id],  :child_ids => [])

解决方案

Apparently this arises from a security hole related to using existing ids in HABTM relationships. See:

https://groups.google.com/forum/#!topic/rubyonrails-core/uWQVCKqQMVU

https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/-fkT0yja_gw

The functionality will not be reintroduced

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