Ruby on rails &引用；OmniAuthCallbackController#facebook中的命名错误：未定义的方法“utc'；2014年9月29日星期一：日期；从使用导轨和MongoMapper的设计

在过去的两周里，我一直在利用空闲时间尝试让VoteSquared.org（）的Facebook身份验证工作。_和_重定向中的符号_是发生错误的位置：

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
 def facebook
   # You need to implement the method below in your model (e.g. app/models/user.rb)
   @user = User.from_omniauth(request.env["omniauth.auth"])

   if @user
     sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated
     set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format?
     #redirect_to politicians_path
   else
     session["devise.facebook_data"] = request.env["omniauth.auth"]
     redirect_to new_user_registration_url
   end
 end
end

---

这是一个破解的解决方案，但它似乎让我通过了这次崩溃（又一次崩溃）。我将上述代码更改为以下代码：

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
  def facebook
    # You need to implement the method below in your model (e.g. app/models/user.rb)
    @user = User.from_omniauth(request.env["omniauth.auth"])

    if @user
      # The following line forces confirmed_at to be set so it doesn't crash in Devise's type conversion
      @user.confirmed_at = Time.now.utc
      sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated
      set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format?
      #redirect_to politicians_path
    else
      session["devise.facebook_data"] = request.env["omniauth.auth"]
      redirect_to new_user_registration_url
    end
  end
end

class OmniAuthCallbackController：authentication#如果未激活@user，将引发此错误
如果是导航格式，设置flash消息（：notice，：success，：kind=>“Facebook”）？
#重定向到路径
其他的
会话[“designe.facebook_data”]=request.env[“omniauth.auth”]
将\重定向到新\用户\注册\ url
结束
结束
结束

现在我将使用这个解决方案，但我希望有一个不需要手动设置值的解决方案。我认为最好让Desive做那项工作

  key :confirmed_at, Time

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
  def facebook
    # You need to implement the method below in your model (e.g. app/models/user.rb)
    @user = User.from_omniauth(request.env["omniauth.auth"])

    if @user
      # The following line forces confirmed_at to be set so it doesn't crash in Devise's type conversion
      @user.confirmed_at = Time.now.utc
      sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated
      set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format?
      #redirect_to politicians_path
    else
      session["devise.facebook_data"] = request.env["omniauth.auth"]
      redirect_to new_user_registration_url
    end
  end
end