Ruby on rails Make_flaggable方法“flaggings”返回堆栈级别太深错误

我正试图根据本教程在我的应用程序中的集合/产品上创建一个“like”按钮：

我可以很好地理解它，它可以很好地满足用户对项目的喜好，并且可以通过按钮切换帮助器方法取消链接，等等

然而，我希望能够显示一个集合/产品有多少“喜欢”，并且基于自述文件，应该是“标记”方法。例如，对于第一个系列，它应该是：

Collection.first.flaggings

但是，我得到一个错误：

Collection Load (0.3ms)  SELECT "collections".* FROM "collections" LIMIT 1
SystemStackError: stack level too deep
    from /Users/Jeff/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/irb/workspace.rb:80
Maybe IRB bug!

我试着在谷歌上搜索stackoverflow等的答案，但没用。我知道堆栈级别太深的错误是由递归/循环调用引起的？但我不确定这是怎么回事

非常感谢您的帮助

使用应用程序中的代码编辑：

Routes.rb

showing collections and 'like'
  resources :collections do
    member do
     get 'like'
  end
end

Collection.rb

class Collection < ActiveRecord::Base
attr_accessible :name, :description, :image, :remote_image_url
belongs_to :user
has_many :products,     dependent: :destroy
has_many :events,       dependent: :destroy
mount_uploader :image, ImageUploader
make_flaggable :like


validates :name,        presence: true, length: { maximum: 100 }
validates :description, presence: true, length: { maximum: 200 }
validates :image,       presence: true 
validates :user_id,     presence: true
end

users.rb的部分部分部分

class User < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation, :user_bio, 
                :shop, :cover_photo, :avatar, :remote_image_url
has_secure_password
mount_uploader :cover_photo, ImageUploader
mount_uploader :avatar, ImageUploader

make_flagger

scope :shop, where(shop: true)

has_many :posts,                    dependent: :destroy
has_many :relationships,            dependent: :destroy,
                                    foreign_key: "follower_id"
has_many :reverse_relationships,    dependent: :destroy,
                                    foreign_key: "followed_id",
                                    class_name: "Relationship"

has_many :following, through: :relationships, source: :followed 
has_many :followers, through: :reverse_relationships, source: :follower 

has_many :collections,              dependent: :destroy 

Collections\u controller.rb

class CollectionsController < ApplicationController
before_filter :authenticate, only: [:create, :destroy]
before_filter :store_location, only: :show  
before_filter :current_collection, only: :show

def like
    @current_user = current_user
    @collection = Collection.find(params[:id])

    if @current_user.flagged?(@collection, :like)
        # User has liked it, let's UNlike it
        @current_user.unflag(@collection, :like)
        redirect_back_or root_path
        flash[:success] = "You have unliked this collection."           
    else
        # User has not like it yet, let's like it
        @current_user.flag(@collection, :like)
        redirect_back_or root_path
        flash[:success] = "You have liked this collection!"         
    end
end

def show
    @title = "Collection"
    collection_user_id = Collection.find(params[:id]).user_id
    @user = User.find(collection_user_id)
    @product = Product.new
    @products = Collection.find(params[:id]).products
    @collection = Collection.find(params[:id])
end

def create
    @collection = current_user.collections.build(params[:collection])
    if @collection.save
        flash[:success] = "New collection added."
        redirect_to shop_user_path(current_user)
    else
        flash[:error] = "Sorry, there seems to be an error adding your collection. Why don't you try again?"
        redirect_to shop_user_path(current_user)
    end
end

def destroy
    @collection = current_user.collections.find_by_id(params[:id])
    @collection.destroy
    flash[:success] = "Collection deleted."
    redirect_to shop_user_path(current_user)
end

private

    def current_collection
        session[:collection_id] = Collection.find(params[:id]).id.to_i
    end

end

---

如果你们还需要代码，一定要告诉我。提前感谢您的帮助

你能粘贴你的模型吗。您自己的代码中可能有一些内容，它返回的mysql语句没有问题。你重启了控制台等吗？@shingara:粘贴了模型。我只是按照说明在user.rb模型中添加make_flagger，并在可以标记的模型中添加make_flaggable，：属性。在本例中，使_可标记：与集合类似。谢谢你们的帮助@同位素：是的，我已经重新启动了服务器、控制台等。谢谢你们的帮助！我想您已经运行了bundle来获取make_的所有依赖项？好像有很多。你能粘贴你的模型吗。您自己的代码中可能有一些内容，它返回的mysql语句没有问题。你重启了控制台等吗？@shingara:粘贴了模型。我只是按照说明在user.rb模型中添加make_flagger，并在可以标记的模型中添加make_flaggable，：属性。在本例中，使_可标记：与集合类似。谢谢你们的帮助@同位素：是的，我已经重新启动了服务器、控制台等。谢谢你们的帮助！我想您已经运行了bundle来获取make_的所有依赖项？似乎有不少。