Question

我试图设置两个模型，它们之间有一个关联表。我已经定义了我的模型关联：

class Homebase < ApplicationRecord
  has_many :homebase_addresses
  has_many :addresses, through: :homebase_address
end

class Address < ApplicationRecord
  has_one :homebase_address
  has_one :homebase, through: :homebase_address
end

我的协会：

 class HomebaseAddress < ApplicationRecord
   belongs_to :homebase
   belongs_to :address
 end

我的实例创建正常：

homebase = Homebase.create
address = Address.create
homebase_address = HomebaseAddress.create(homebase: homebase, address: address)

然而，

homebase.addresses

给出以下错误：

ActiveRecord::HasManyThroughAssociationNotFoundError:
       Could not find the association :homebase_address in model Homebase

我在这里缺少什么？谢谢你！

Answer 1

ActiveRecord :: HasManyThroughAssociationNotFoundError：找不到关联：homebase中的homebase_address

您的问题出在 Homebase 模型中的关联中。您有homebase_address而不是homebase_addresses

class Homebase < ApplicationRecord
  has_many :homebase_addresses
  has_many :addresses, through: :homebase_addresses
                                          #^^^^^
end

ActiveRecord Association for has_one＆amp; has_many关联表

1 个答案: