ruby-on-rails - ActiveAdmin 中的多态关联和 Formtastic

Question

我有一个简单的多态关联:

class Highlight < ActiveRecord::Base
  belongs_to :highlightable, polymorphic: true
end

class Property < ActiveRecord::Base
  has_many :highlights, as: :highlightable
end

class Destination < ActiveRecord::Base
  has_many :highlights, as: :highlightable
end

在 active_admin 表单中创建一个新的突出显示，我如何将它分配给属性或目标？

Answer 1

您可以将此添加到突出显示表单:

f.input : highlightable_type, as: :select, collection: {"Property" => "property", "Destination" => "destination"}