ActiveRecord Association for has_one & has_many associative table

Question

我正在尝试建立两个模型，它们之间有关联 table。我已经这样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

我的实例创建成功：

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

我在这里错过了什么？多谢！

Answer 1

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

您的问题出在您在 Homebase 模型中的关联中。你有 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 & has_many associative table

ActiveRecord Association for has_one & has_many associative table

ruby-on-rails

activerecord

associations

models