跳过 Rails 3 中嵌套属性的验证? [英] Skip validations for nested attributes in Rails 3?

问题描述

我目前正在使用嵌套的 forms/fields_for，我想知道是否有一种简单的方法可以跳过对嵌套属性的验证?

I'm currently working with nested forms/fields_for and I was wondering if there was an easy way to skip validations for nested attributes?

我可以在某处挤一个 object.nested_object.save(:validate => false) 吗?

Can I maybe squeeze a object.nested_object.save(:validate => false) in somewhere?

推荐答案

您只需要将保存分为两部分.第一部分关于父保存，第二部分关于嵌套

You just need do your save in two part. The first save about the parent saving and second part about nested

如果您在此嵌套字段上使用 accepts_nested_attributes_for

If you use an accepts_nested_attributes_for on this nested field

def create
  nested_params = params[:object].delete(:nested_attributes)
  if object = Object.create(params[:object]) && 
    object.update_attributes(nested_params, :validate => false)
    redirect_to object_url(object)
  else
    render :new
  end
end

根据 Cojones 的评论更新:

如果你不使用这个选项，你需要直接分配nested_attribute，比如注释上的解释:

If you don't use this option you need assign directly the nested_attribute like explain on comment :

def create
  nested_params = params[:object].delete(:nested_attributes)
  if object = Object.create(params[:object]) && 
    object.nested_object.update_attributes(nested_params, :validate => false)
    redirect_to object_url(object)
  else
    render :new
  end
end

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