我最近从 Devise 1.2 升级到 1.4.9，除了我的可确认模块之外，一切似乎都正常。电子邮件以及整个过程都有效。但确认页面始终是空白的。它可以工作并确认电子邮件帐户，但不会重定向用户并引发 406 错误。对于错误确认尝试，它也会执行相同的操作。

路线似乎工作正常，我在我的用户模型中指定了可确认的内容，并且没有其他任何变化。

有任何想法吗？我是否缺少某些设置或需要为 1.4.9 更新的内容？

UPDATE

看来是生成 URL 的问题。由于某种未知的原因，它在确认 URL 前面添加了用户名？这导致它破裂。但我仍然不确定如何解决它。

http://localhost:5000/users/confirmation.someusername?confirmation_token=R7apAPhC5c3rszvhsowp http://localhost:5000/users/confirmation.someusername?confirmation_token=R7apAPhC5c3rszvhsowp

上面 URL 中的用户名导致进程无法运行。

我检查了 1.2 中的控制器（可以工作）和新版本之间的差异。

1.2

  # GET /resource/confirmation?confirmation_token=abcdef
  def show
    self.resource = resource_class.confirm_by_token(params[:confirmation_token])

    if resource.errors.empty?
      set_flash_message :notice, :confirmed
      sign_in_and_redirect(resource_name, resource)
    else
      render_with_scope :new
    end
  end

1.4.9

  # GET /resource/confirmation?confirmation_token=abcdef
  def show
    self.resource = resource_class.confirm_by_token(params[:confirmation_token])

    if resource.errors.empty?
      set_flash_message(:notice, :confirmed) if is_navigational_format?
      sign_in(resource_name, resource)
      respond_with_navigational(resource){ redirect_to after_confirmation_path_for(resource_name, resource) }
    else
      respond_with_navigational(resource.errors, :status => :unprocessable_entity){ render_with_scope :new }
    end
  end

  protected

    # The path used after resending confirmation instructions.
    def after_resending_confirmation_instructions_path_for(resource_name)
      new_session_path(resource_name)
    end

    # The path used after confirmation.
    def after_confirmation_path_for(resource_name, resource)
      after_sign_in_path_for(resource)
    end

error

Started GET "/users/confirmation.sdfsdfsd?confirmation_token=vmxmx73xvM7sUfcvH9CX" for 127.0.0.1 at 2011-10-31 13:30:33 +0100
  Processing by Devise::ConfirmationsController#show as 
  Parameters: {"confirmation_token"=>"vmxmx73xvM7sUfcvH9CX"}
  SQL (1.1ms)   SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
 FROM pg_attribute a LEFT JOIN pg_attrdef d
 ON a.attrelid = d.adrelid AND a.attnum = d.adnum
 WHERE a.attrelid = '"users"'::regclass
 AND a.attnum > 0 AND NOT a.attisdropped
 ORDER BY a.attnum

  User Load (1.2ms)  SELECT "users".* FROM "users" WHERE "users"."confirmation_token" = 'vmxmx73xvM7sUfcvH9CX' LIMIT 1
  SQL (0.7ms)   SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
 FROM pg_attribute a LEFT JOIN pg_attrdef d
 ON a.attrelid = d.adrelid AND a.attnum = d.adnum
 WHERE a.attrelid = '"users"'::regclass
 AND a.attnum > 0 AND NOT a.attisdropped
 ORDER BY a.attnum

Completed 406 Not Acceptable in 28ms

其他人指出了我正确的方向，但这是我的确切解决方案。问题出在我从 1.2 复制过来的设计视图模板中？看来他们改变了链接助手user_confirmation_url() to simply confirmation_url().

旧的确认电子邮件

<p>Welcome <%= @resource.email %>!</p>

<p>You can confirm your account through the link below:</p>

<p><%= link_to 'Confirm my account', user_confirmation_url(@resource, :confirmation_token => @resource.confirmation_token) %></p>

新的确认模板

<p>Welcome <%= @resource.email %>!</p>

<p>You can confirm your account through the link below:</p>

<p><%= link_to 'Confirm my account', confirmation_url(@resource, :confirmation_token => @resource.confirmation_token) %></p>