mongoid不能用鐵軌推HABTM關係

我在這個問題上堅持了幾天..請幫助，提前致謝。mongoid不能用鐵軌推HABTM關係

這是mongoid Rails項目，也就是2個車型項目，一個是用戶，另一個CustomSearchEngine：

class User 
    include Mongoid::Document 
    # Include default devise modules. Others available are: 
    ...... 
    # keep the CSEs 
    has_and_belongs_to_many :keeped_custom_search_engines, class_name: 'CustomSearchEngine', inverse_of: :consumers 

    # create or fork the CSEs 
    has_many :custom_search_engines, inverse_of: :author, dependent: :destroy 

    # Index 
    index({username: 1}, {unique: true, name: 'user_username'}) 
    index({email: 1}, {unique: true, name: 'user_email'}) 

    # Massive assignment for User.new 
    attr_accessible :email, :username, :agreement, :password, :password_confirmation 
    attr_accessor :agreement, :password_confirmation 
    validates :password_confirmation, presence: true 
    validates :agreement, presence: true 
end 

class CustomSearchEngine 
    include Mongoid::Document 
    include Mongoid::Timestamps 
    paginates_per 20 
... 
    belongs_to :author, class_name: 'User', inverse_of: :custom_search_engines 
    has_and_belongs_to_many :consumers, class_name: 'User', inverse_of: :keeped_custom_search_engines 
    belongs_to :node 

    # Index 
    index({author_id: 1}, {name: 'cse_author_id'}) 
    index({node_id: 1}, {name: 'cse_node_id'}) 

    # validations 
    validates :status, presence: true, inclusion: {in: ['draft', 'publish']} 
    validates :author_id, presence: true 
    validates :node_id, presence: true 

    scope :recent, ->(status) { where(status: status).desc(:created_at) } 
    ... 
end

在我CustomSearchEngine控制器：

current_user.keeped_custom_search_engines.push(@custom_search_engine)

那我走了到我的mongodb，我只看到用戶文件更新了：

keeped_custom_search_engine_ids: ["50a208092061c770190000df"]

但是自定義搜索引擎的文檔沒有改變：

consumer_ids: []

我得到一個錯誤：@messages={:consumers=>["is invalid"]}

東西我錯過了什麼？

來源

2012-11-14 firsthym

嘗試採取索引斷開CustomSearchEngine模型，看看它是否依然存在呢。當我遇到這樣的問題是因爲我聲明瞭相互矛盾的索引。不知道這是否會解決它，但很容易嘗試 – SporkInventor

我試過你的建議，但它沒有奏效。這個錯誤對我來說意味着驗證。但我沒有發現任何錯誤的驗證。 – firsthym

我覺得這個問題是你在消費者實例保存到數據庫之前推送消費者。

嘗試這樣的代碼：

def create 
@team = Team.new(params[:team]) 
@team.own = current_user 
respond_to do |format| 
    if @team.save 
    current_user.push_join_teams(@team.id) 
    format.html { redirect_to @team, notice: 'Team was successfully created.' } 
    format.json { render json: @team, status: :created, location: @team } 
    else 
    format.html { render action: "new" } 
    format.json { render json: @team.errors, status: :unprocessable_entity } 
    end 
end 
end 

#user.rb 
def push_join_teams(tid) 
return false if self.join_team_ids.include?(tid) 
self.push(:join_team_ids,tid) 
end

來源

2013-09-16 02:14:37

mongoid不能用鐵軌推HABTM關係

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