序列化和反序列化ActiveRecord模型与孩子 [英] Serialize and deserialize ActiveRecord model with children

问题描述

表格有许多条目。序列化的形式和它的作品我用：

Form has many entries. To serialize form and it's entries I use:

json = @form.to_json( { :only => Form.accessible_attributes.to_a, :include => {:entries => {:only => Entry.accessible_attributes.to_a}}})

表和条目属性进行修改或删除，而他们在JSON。

Form and entries attributes can be modified or deleted while they are in JSON.

要反序列化我使用（但不工作）：

To deserialize I use (but not working) :

@form = @form.from_json(json)
@form.save

如何保存条目在一次与形式？

How to save entries at once with form?

推荐答案

只好项改为entries_attributes：

Had to change entries to entries_attributes:

json = @form.to_json( { :only => Form.accessible_attributes.to_a, :include => {:entries => {:only => Entry.accessible_attributes.to_a}}}).gsub('"entries":[{', '"entries_attributes":[{')

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