Question

虽然下面的代码段有效，但我已经开始探索更好的方法来干这个了。任何人都更好地了解如何构建这个？我感谢您的帮助。

class User < ActiveRecord::Base

  validates :remote_addr, :web_browser, :operating_system, presence: true

  validates :age_verification, presence: { message: "You must be at least 18 years old to register for this application" }

  validates :email_address,
    allow_nil: false,
    allow_blank: false,
    presence: { message: "A valid email address is required" },
    uniqueness: {
      case_sensitive: false,
      message: "This email address has been previously registered"
    },
    email_format: {
      check_mx: true,
      mx_message: "This email address has a bad domain",
      message: "This email address must be formatted properly"
    }

end

Answer 1

你可以：

将自定义消息移至I18n文件，更多info，例如：

配置/区域设置/ en.yml

en:
  errors:
    attributes:
      age_verification:
        blank: 'You must be at least 18 years old to register for this application'
      email_address:
        blank: 'A valid email address is required'

  activerecord:
    errors:
      messages:
        invalid_email_address: 'This email address must be formatted properly'
        email_address_not_routable: 'This email address has a bad domain'

  activemodel:
    errors:
      messages:
        invalid_email_address: 'This email address must be formatted properly'
        email_address_not_routable: 'This email address has a bad domain'

并加入状态验证，age_verification，电子邮件字段和其他

验证

email_address

2，确实需要检查 allow_nil 和 allow_blank 以及状态？因为验证电子邮件格式与它们重叠，即空白和零不被接受为有效值。对于数据一致性而是使用数据库索引和列约束。

所以我这样做：

validates_presence_of :remote_addr, :web_browser, :operating_system, :age_verification, :email_address validates :email_address, uniqueness: { case_sensitive: false }, email_format: { check_mx: true }

将错误消息移至en.yml文件（参见上文），并将create migration添加到表

change_column <tables>, :email, null: false add_index <tables>, :email, unique: true

干涸活跃的记录模型验证

1 个答案: