Question

当我尝试保存新密码时，出现用户用户名太长的错误（我正在使用username mechanism for Devise with Rails 3.2.x here）。如何增加用户名的长度？我在devise.rb中没有看到任何相关内容。

irb(main):002:0> u.password='resetpass'
=> "resetpass"
irb(main):003:0> u.password_confirmation='resetpass'
=> "resetpass"
irb(main):005:0> u.save!
   (0.9ms)  BEGIN
  User Exists (1.6ms)  SELECT 1 AS one FROM "users" WHERE (LOWER("users"."username") = LOWER('exterminator5000') AND "users"."id" != 128) LIMIT 1
   (0.7ms)  ROLLBACK
ActiveRecord::RecordInvalid: Validation failed: Username must have at most 15 characters

Answer 1

似乎问题出在您的User模型中。看看这个http://edgeguides.rubyonrails.org/active_record_validations.html#length。您应该更改此字段的length验证。

Answer 2

 validates :username, :length => { :maximum => 50 }

Add您的User Model中的这行代码会对至少50 characters进行验证。

用户名最大长度在Devise 3.2中

2 个答案: