Active Record Validations 4 Strict Validations 严格校验

version: Rails 4.1

 

严格校验

 

你也可以指定校验为严格的，当对象无效时，抛出异常 ActiveModel::StrictValidationFailed。

 

class Person < ActiveRecord::Base
  validates :name , presence: { strict: true }
end

Person. new .valid?  # => ActiveModel::StrictValidationFailed: Name can't be blank

也可以把定制化的异常传入到 :strict 选项中。

 

class Person < ActiveRecord::Base
  validates :token , presence: true , uniqueness: true , strict: TokenGenerationException
end

Person. new .valid?  # => TokenGenerationException: Token can't be blank

 

original url:  http://guides.rubyonrails.org/active_record_validations.html#strict-validations