从模型中获取验证 [英] get validations from model

问题描述

我如何获得模型中定义的验证列表

How cat I get list of validations defined in model

示例:

class ModelName
  validates_presence_of :field_name
  validates_inclusion_of :sex, :in => %w(M F)
end

我需要像这样的哈希:

{:field_name => 'required', :sex => 'Must be in: M, F'}

推荐答案

您不需要插件来满足基本需求.

You don't need a plugin for basic needs.

您可以这样做以获取所有验证器的哈希值.

You can do this to get a hash of all validators.

ModelName.validators

如果您想获取特定字段的验证器:

If you want to get the validators for a specific field :

ModelName.validators_on(:attribute)

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