Rails有很多通過源協會找不到錯誤

Question

我目前正試圖在我的Rails應用程序中實現一個最喜歡的功能。但是，當我嘗試單擊「添加到收藏夾」鏈接時，我收到錯誤消息：

在模型FavoriteEvent中找不到源關聯：收藏夾或：收藏夾。試試'has_many：favorites，：through =>：favorite_events，：source =>'。是以下其中一項：事件還是：用戶？

我嘗試如下：

Event.rb

class Event < ActiveRecord::Base 
    belongs_to :user 
    has_many :favorite_events 
    has_many :favorited_by, through: :favorite_events, source: :user 
end 

User.rb

class User < ActiveRecord::Base 
    has_many :events 
    has_many :favorite_events 
    has_many :favorites, through: :favorite_events 
end 

Favorite_event.rb

class FavoriteEvent < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :event 
end 

event_controller

def favorite 
    type = params[:type] 
    if type == "add" 
     current_user.favorites << @event 
    else 
     redirect_to :back, notice: 'Event not added' 
    end 
end 

查看

<%= link_to "Add to calendar", 
    favorite_event_path(@event, type: "favorite"), 
    method: :put %> 

路線

resources :events do 
    put :favorite, on :member 
end 

Answer 1

class User < ActiveRecord::Base 
    has_many :favorite_events 
    has_many :events 
    has_many :favorites, through: :favorite_events, source: :event 
end 

Answer 2

你的模型結構S應該是這樣的。

event.rb

class Event < ActiveRecord::Base 
    belongs_to :user 
end 

user.rb

class User < ActiveRecord::Base 
    has_many :events 
    has_many :favorite_events 
    has_many :favorites, through: :favorite_events 
end 

favorite_event.rb

class FavoriteEvent < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :event 
end 

這表明THA t：用戶has_many事件 和用戶has_many favorite_event通過事件。

我認爲你想實現。 我對@adanot？