Question

class User < ActiveRecord::Base


  before_save { self.email = email.downcase }
  (validates :name,  presence: true, length: { maximum: 50 })
   VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, presence: true, length: { maximum: 255 };
    format: { with: VALID_EMAIL_REGEX };              
    uniqueness: { case_sensitive: false },
  has_secure_password:

  (validates :password, presence: true, length:{ minimum: 6 } )  
end

有人帮我弄清楚这种语法出错的地方

Answer 1

在User模型中试试这个：

class User < ActiveRecord::Base

  before_validation { self.email = email.downcase! }
  validates :name, presence: true, length: { maximum: 50 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+\z/i
  validates :email, presence: true, length: { maximum: 255 },
                                    format: { with: VALID_EMAIL_REGEX },
                                    uniqueness: { case_sensitive: false }

  has_secure_password

  validates :password, presence: true, length: { minimum: 6 }
end

Answer 2

您的模型应如下所示。

class User < ActiveRecord::Base
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

  before_save { self.email = email.downcase }
  validates :name,  presence: true, length: { maximum: 50 }
  validates :email, presence: true, length: { maximum: 255 },
            format: { with: VALID_EMAIL_REGEX },
            uniqueness: { case_sensitive: false }
  validates :password, presence: true, length:{ minimum: 6 }

  has_secure_password
end

Answer 3

您可能还想更改此行：

before_save { self.email = email.downcase }

进入这个：

before_validation { self.email = email.downcase }

这样做的方式是：

验证
保存回调之前
实际保存

因此，用户将在其电子邮件中使用大写字母，然后保存，并且由于使用大写字母，验证将失败。

因此，您希望在验证之前将其电子邮件设置为小写字母，而不是在以下情况之后： - ）

Ruby on Rails建模用户

3 个答案: