Question

我在我的Rails 3应用中使用devise_invitable和devise。我想让我的用户能够邀请其他用户，并在被邀请者注册之前将这些受邀用户分组。

我的问题是，一旦被邀请者出现并注册（但不使用邀请URL），destroy_if_previously_invited around_filter会出现，销毁原始用户记录并为用户重新创建新记录，保留邀请数据但不传输user_groups记录。

我想通过搜索与最初邀请的user_id匹配的任何user_group并使用新创建的user_id保存它们来简单地覆盖此around_filter。

我一直收到错误：

LocalJumpError in Users::RegistrationsController#create

no block given (yield)

我的路线如下：

devise_for :users, :controllers => { :registrations => "users/registrations" }

我已将此设置为app / controllers / users / registrations_controller.rb中的覆盖：

class Users::RegistrationsController < Devise::RegistrationsController

  around_filter :destroy_if_previously_invited, :only => :create


  private    

  def destroy_if_previously_invited
    invitation_info = {}

    user_hash = params[:user]
    if user_hash && user_hash[:email]
      @user = User.find_by_email_and_encrypted_password(user_hash[:email], '')
      if @user
        invitation_info[:invitation_sent_at] = @user[:invitation_sent_at]
        invitation_info[:invited_by_id] = @user[:invited_by_id]
        invitation_info[:invited_by_type] = @user[:invited_by_type]
        invitation_info[:user_id] = @user[:id]
        @user.destroy
      end
    end

    # execute the action (create)
    yield
    # Note that the after_filter is executed at THIS position !

    # Restore info about the last invitation (for later reference)
    # Reset the invitation_info only, if invited_by_id is still nil at this stage:
    @user = User.find_by_email_and_invited_by_id(user_hash[:email], nil)
    if @user
      @user[:invitation_sent_at] = invitation_info[:invitation_sent_at]
      @user[:invited_by_id] = invitation_info[:invited_by_id]
      @user[:invited_by_type] = invitation_info[:invited_by_type]
      user_groups = UserGroup.find_all_by_user_id(invitation_info[:user_id])
      for user_group in user_groups do
        user_group.user_id = @user.id
        user_group.save!
      end
      @user.save!
    end
  end
end

我也可能只是将这一切都搞错了。任何想法都将不胜感激。

Answer 1

首先，没有必要再次设置around_filter，因为devise_invitable已经设置了这个。您需要做的就是重新定义UsersController中的方法，然后调用那些方法而不是devise_invitable方法。

其次，看起来你正在将这两种方法结合起来，它们应该保持独立和重写（我的基础是最新版本的devise_invitatable 1.1.1）

尝试这样的事情：

class Users::RegistrationsController < Devise::RegistrationsController
  protected

  def destroy_if_previously_invited
    hash = params[resource_name]
    if hash && hash[:email]
      resource = resource_class.where(:email => hash[:email], :encrypted_password => '').first
      if resource
        @old_id = resource.id #saving the old id for use in reset_invitation_info
        @invitation_info = Hash[resource.invitation_fields.map {|field|
          [field, resource.send(field)]
        }]
        resource.destroy
      end
    end
  end

  def reset_invitation_info
    # Restore info about the last invitation (for later reference)
    # Reset the invitation_info only, if invited_by_id is still nil at this stage:
    resource = resource_class.where(:email => params[resource_name][:email], :invited_by_id => nil).first
    if resource && @invitation_info
      resource.invitation_fields.each do |field|
        resource.send("#{field}=", @invitation_info[field])
      end
      ### Adding your code here
      if @old_id
        user_groups = UserGroup.find_all_by_user_id(@old_id)
        for user_group in user_groups do
          user_group.user_id = resource.id
          user_group.save!
        end
      end
      ### End of your code
      resource.save!
    end
  end

如何在devise_invitable中覆盖destroy_if_previously_invited？

1 个答案: