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使用 Rails 3.2 和 Devise，我用自定义控制器覆盖了注册控制器。方法里的代码我完全没有改create，是Devise中的原版。

但奇怪的是，每当我尝试创建/注册新用户时，我都会收到此错误。

PG::Error: ERROR:  null value in column "email" violates not-null constraint
: INSERT INTO "users" ("created_at", "current_sign_in_at", "current_sign_in_ip", "email", "last_sign_in_at", "last_sign_in_ip", "payroll", "sign_in_count", "updated_at", "username") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10) RETURNING "id"

但在它下面，一切似乎都很好，因为用户正在收到一封有效的电子邮件。

{"utf8"=>"✓",
 "authenticity_token"=>"8/ZKW11lF22WYKV2K36zBkSk6DSU36/1/zU54a2IRmM=",
 "user"=>{"username"=>"someguy",
 "email"=>"email@yahoo.com",
 "password"=>"[FILTERED]",
 "password_confirmation"=>"[FILTERED]"},
 "commit"=>"Sign up",
 "format"=>"user"}

我不太确定要在此处粘贴哪些其他代码，因为一切显然都适合我。所以请询问任何可能有帮助的东西。

这是我的注册控制器，但create基本上具有相同的代码super。错误发生在具有resource.save.

class UserRegistrationsController < Devise::RegistrationsController
  def new
    super
  end

  def create
    build_resource

    if resource.save

      if resource.active_for_authentication?
        set_flash_message :notice, :signed_up if is_navigational_format?
        sign_up(resource_name, resource)
        respond_with resource, :location => after_sign_up_path_for(resource)
      else
        set_flash_message :notice, :"signed_up_but_#{resource.inactive_message}" if is_navigational_format?
        expire_session_data_after_sign_in!
        respond_with resource, :location => after_inactive_sign_up_path_for(resource)
      end
    else
      clean_up_passwords resource
      respond_with resource
    end
  end

  def update
    super
  end
end

显然，所有字段都是nil. 这是它执行的查询：

INSERT INTO "users" ("created_at", "current_sign_in_at", "current_sign_in_ip", "email", "first_name", "last_name", "last_sign_in_at", "last_sign_in_ip", "payroll", "sign_in_count", "updated_at", "username") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12) RETURNING "id"  [["created_at", Wed, 17 Apr 2013 19:34:22 BST +01:00], ["current_sign_in_at", nil], ["current_sign_in_ip", nil], ["email", nil], ["first_name", nil], ["last_name", nil], ["last_sign_in_at", nil], ["last_sign_in_ip", nil], ["payroll", nil], ["sign_in_count", 0], ["updated_at", Wed, 17 Apr 2013 19:34:22 BST +01:00], ["username", ""]]
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1 回答 1

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电子邮件是否可以在 User 类上批量分配？尝试在 User 类中声明 attr_accessible :email 。

于 2013-04-17T17:04:35.307 回答