ruby-on-rails – 如何防止Rails Console在db事务上立即执行回滚

我不是沙箱模式.

以下是我在尝试创建用户时在控制台中获得的输出.它表示用户存在,然后立即回滚事务.然后我运行User.all只是为了表明事务确实被回滚.

>>> User.create(first_name: "derek",last_name: "harrington",email: "derek@gmail.com")
 (0.1ms)  begin transaction
 User Exists (0.2ms)  SELECT 1 FROM "users" WHERE "users"."email" = 'derek@gmail.com' LIMIT 1
 (0.1ms)  rollback transaction
 => #<User id: nil,first_name: "derek",email: "derek@gmail.com",password_digest: nil,credit_card_id: nil,address_id: nil,created_at: nil,updated_at: nil> 
>>> User.all
 User Load (0.3ms)  SELECT "users".* FROM "users" 
 => []

如何使这些更改永久化并防止回滚？

编辑：

这是我的用户模型的内容

class User < ActiveRecord::Base
  attr_accessible :first_name,:last_name,:email,:password,:password_confirmation
  has_secure_password

  validates :first_name,presence: true,length: { maximum: 50 }
  validates :last_name,length: { maximum: 50 }
  VALID_EMAIL_REGEX = /A[w+-.]+@[a-zd-.]+.[a-z]+z/i
  validates :email,presence:   true,format:     { with: VALID_EMAIL_REGEX },uniqueness: true
  validates :password,confirmation: true,length: { minimum: 6,maximum: 50 }
  validates :password_confirmation,presence: true
end