Question

我已经创建了简单的Rails应用，当我要发布图像时，在Rails管理员中显示了错误“ HasManyThroughCantAssociateThroughHasOneOrManyReflection”。

这是我的代码：

有人可以帮我解决吗？

class ProductInvest < ApplicationRecord
  belongs_to :product
  has_many :pictures, through: :product
end

class Product < ApplicationRecord
  has_many :pictures
  has_many :Product_invests
end

class Picture < ApplicationRecord
  belongs_to :product
  has_many :Product_invests, through: :product
end

Answer 1

您的关联设置不正确。尝试以下方法：

class ProductInvest < ApplicationRecord
  has_many :products
  has_many :pictures, through: :products
end

class Product < ApplicationRecord
  belongs_to :pictures
  belongs_to :product_invests
end

class Picture < ApplicationRecord
  has_many :products
  has_many :product_invests, through: :products
end

您可以在此处获取更多信息：RubyGuides

如何解决Rails 5中的错误“ HasManyThroughCantAssociateThroughHasOneOrManyReflection”？

1 个答案: