Question

我在Hartl教程结束时使用state_machine gem来设置注册电子邮件确认过程（我知道这对于这个简单的用例来说代码很重，但我做到了这一点学）。

我已将以下代码插入到我的用户模型中：

state_machine initial: :inactive do
    event :confirm do
      transition :inactive => :active 
    end
  end

当我进入rails控制台时，找到一个用户并尝试从非活动转换为活动它失败：

2.0.0-p481 :040 > u = User.find(1)
  User Load (2.5ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT 1  [["id", 1]]
 => #<User id: 1, name: "Example User", email: "example@railstutorial.org", created_at: "2014-09-09 08:28:20", updated_at: "2014-09-09 08:28:20", password_digest: "$2a$10$.Fhol/ebeFxVKT1HTvDTce/c.zC5D0MLMH.fTqPzMnNf...", remember_token: "bdfa52f05e2f8357ff95e6354af0565a6dca9a83", admin: true, state: "inactive"> 
2.0.0-p481 :041 > u.state
 => "inactive" 
2.0.0-p481 :042 > u.state_events
 => [:confirm] 
2.0.0-p481 :043 > u.confirm
   (0.3ms)  BEGIN
  User Exists (4.8ms)  SELECT 1 AS one FROM "users" WHERE (LOWER("users"."email") = LOWER('example@railstutorial.org') AND "users"."id" != 1) LIMIT 1
   (0.9ms)  ROLLBACK
 => false

我出错的任何想法？我怀疑它与此片段有关：

"users"."id" != 1

但我不知道sql查询为什么会这样做？

State_machine gem转换失败

0 个答案: