使用Mongoid和rspec測試named_scope

Question

我是RoR中的新手，我試圖爲我的模型測試一個簡單的named_scope。

但我不知道我的模型（我使用mongoid）是否有問題，在我的代碼測試中（我使用rspec）還是在我的工廠中。我得到這個錯誤

Mongoid::Errors::InvalidCollection: Access to the collection for Movement is not allowed since it is an embedded document, please access a collection from the root document.

我的模型

class Movement 
    include Mongoid::Document 
    field :description, :type => String 
    embedded_in :category 

    named_scope :top, lambda { |number| { :limit => (number.size > 0 ? number : 10) } }  
end 

class Category 
    include Mongoid::Document 
    field :name 
    embeds_many :movement 
end 

我廠，CON factory_girl

Factory.define :movement do |m| 
    m.amount 24 
    m.date "30/10/2011" 
    m.description "Beer" 
    m.association :category, :factory => :category 
end 

Factory.define :category do |c| 
    c.name "Drink" 
end 

我的測試

describe "when i have a movement list" do 
    it "recent method should return last 2 movements" do 
    @movements = (1..3).collect { Factory(:movement) } 
    recent_movements = Movement.top(2) 
    recent_movements.should have(2).entries 
    end 
end 

和錯誤：

Mongoid::Errors::InvalidCollection: Access to the collection for Movement is not allowed since it is an embedded >document, please access a collection from the root document.

我在我的工廠嘗試了一點變化。

Factory.define :movement do |m| 
     m.amount 24 
     m.date "30/10/2011" 
     m.description "Beer" 
     m.category { [ Factory.build(:category) ] } 
    end 

但後來我得到了不同的錯誤：

Failure/Error: @movements = (1..3).collect { Factory(:movement) } NoMethodError: undefined method `reflect_on_association' for #

有人能幫助我嗎？

謝謝

Answer 1

我剛剛在我的應用程序中有一個相同的錯誤。我最終在我的課堂上發生了錯誤，並解決了我的問題。