Ruby on rails 设置验证规则的消息

我有以下验证规则：

  validates :email, :presence => {:message => 'Email cannot be blank.'}, :allow_blank => true, :format => {:with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => 'Email is not valid.'}, :uniqueness => true

我想为您建立自己的消息

validates :email, :presence => {:message => 'Email cannot be blank.'}, :allow_blank => true, :format => {:with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => 'Email is not valid.'}, :uniqueness => {message: 'This email address has already been taken.'}

但这只生成默认消息，而不是我在消息部分中定义的消息。如何定制

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谢谢

您使用的是什么版本的Rails？我在运行Ruby 1.9.3和Rails 3.2.16的Rails应用程序上测试了您的验证代码，它显示了所有定制的消息。