设计中具有子域范围的电子邮件唯一性验证

Question

我正在使用devise gem 进行注册 un My rails 5 API 现在我的问题是，如果子域不同，我想注册相同的电子邮件地址用户，所以我的步骤是

1) 更新用户索引

add_index :users, [:email, :subdomain], unique: true

2) 在 user.rb 中

devise :database_authenticatable, :registerable,
     :recoverable, :rememberable, :trackable, :validatable, :confirmable
validates :email, uniqueness: {:scope => :subdomain}

现在在控制台中

• User.last

#<User id: 111, email: "test@gmail.com", subdomain: "test">

• 使用相同的电子邮件和不同的子域创建新用户

User.create!(email: "test@gmail.com", subdomain: "test1")

错误

(0.2ms)  BEGIN
  User Exists (0.5ms)  SELECT  1 AS one FROM "users" WHERE 
 "users"."email" = $1 AND "users"."deleted_at" IS NULL AND 
 "users"."subdomain" = $2 LIMIT $3  [["email", 
 "test@gmail.com"], ["subdomain", "test1"], ["LIMIT", 1]]

  User Exists (0.3ms)  SELECT  1 AS one FROM "users" WHERE 
 "users"."email" = $1 AND "users"."deleted_at" IS NULL LIMIT $2  
 [["email", "test@gmail.com"], ["LIMIT", 1]]
 (0.1ms)  ROLLBACK
 ActiveRecord::RecordInvalid: Validation failed: Email has already been taken

我做错了什么？

Answer 1

既然您有validatable，请将以下内容添加到您的用户模型中：

validates :email, presence: true
validates :subdomain, presence: true
validates :email, uniqueness: {:scope => :subdomain}

def email_required?
  false
end

def email_changed?
  false
end

参考：https://github.com/plataformatec/devise/wiki/How-To%3a-Allow-users-to-sign-in-with-something-other-than-their-email-address