有没有办法让Rails的ActiveRecord的属性私有？ [英] Is there a way to make Rails ActiveRecord attributes private?

问题描述

在默认情况下，ActiveRecord的需要从相应的数据库表中的所有领域，并创建公共属性全部。

By default, ActiveRecord takes all fields from the corresponding database table and creates public attributes for all of them.

我认为这是合理的没有的制作模型中公开的所有属性。更有甚者，揭露了旨在供内部使用杂波模型的接口，并违反了封装的原则。属性

I think that it's reasonable not to make all attributes in a model public. Even more, exposing attributes that are meant for internal use clutters the model's interface and violates the encapsulation principle.

那么，有没有一种方法，使一些属性字面上私人？

So, is there a way to make some of the attributes literally private?

或者，也许我应该转移到其他的ORM？

Or, maybe I should move on to some other ORM?

推荐答案

Jordini是最有路

Jordini was most of the way there

大多数active_record的发生在method_missing的。如果你前面定义的方法，也不会打的method_missing该方法，并使用你何不换一种活（有效覆盖，但不是真的）

Most of active_record happens in method_missing. If you define the method up front, it won't hit method_missing for that method, and use yours in stead (effectively overwriting, but not really)

class YourModel < ActiveRecord::Base

  private

  def my_private_attribute
    self[:my_private_attribute]
  end

  def my_private_attribute=(val)
    write_attribute :my_private_attribute, val
  end

end

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