Postgresql 未为多态关联设置imageable type_Postgresql_Ruby On Rails 4_Activerecord

Postgresql 未为多态关联设置imageable type

postgresql ruby-on-rails-4 activerecord

Postgresql 未为多态关联设置imageable type,postgresql,ruby-on-rails-4,activerecord,Postgresql,Ruby On Rails 4,Activerecord,我的rails 4.2应用程序中有两个模型 class LandingPage < ActiveRecord::Base has_one :section2_photo, -> { where imageable_type: "Section2Photo"}, class_name: Image, foreign_key: :imageable_id, foreign_type: :imageable_type, dependent: :destroy, as: :im

我的rails 4.2应用程序中有两个模型

class LandingPage < ActiveRecord::Base

  has_one :section2_photo, -> { where imageable_type: "Section2Photo"},
    class_name: Image, foreign_key: :imageable_id, foreign_type: :imageable_type, dependent: :destroy, as: :imageable

  has_one :section3_photo, -> { where imageable_type: "Section3Photo"},
    class_name: Image, foreign_key: :imageable_id, foreign_type: :imageable_type, dependent: :destroy, as: :imageable
end

但当我这么做的时候

image.imageable_type

我明白了

而不是

"Section2Photo"

只是为我删除的其他人发帖

as: :imageable

现在工作很好

"LandingPage"

"Section2Photo"

as: :imageable