積極記錄通過煩惱

Question

我有三種模式。

class Location < ActiveRecord::Base 
    attr_accessible :description 
    belongs_to :user 
    has_many :zones 
    has_many :iteractions, :through => :zones 
end 

class Zone < ActiveRecord::Base 
    attr_accessible :description 
    belongs_to :location 
    has_many :iteractions 
end 

class Iteraction < ActiveRecord::Base 
    attr_accessible :count, :itime 
    belongs_to :zone 
    belongs_to :location, :through => :zone 
end 

所以我嘗試安裝rails_admin 是對我說：「未知鍵：通過（參數錯誤）」

哪裏是錯誤？

Answer 1

A belongs_to協會不能有:through選項。相反，您可以使用has_one :location, :through => :zone