Ruby on rails 如何快速加载STI子类上的所有关联

我有这样一个模型层次结构：

class Activity
end

class HelloActivity < Activity
  has_one :hello_activity_details
end

class WorldActivity < Activity
  has_one :world_activity_details
end

屈服

Association named 'hello_activity_details' not found on WorldActivity; perhaps you misspelled it?

如何加载详细信息

我知道我可以手动调用预加载程序，但是有没有更惯用的方法呢

---

“谢谢”

如错误所述，看起来像是典型的打字错误

has_one

必须将类关联名称设置为单数

尝试：

类HelloActivity

Association named 'hello_activity_details' not found on WorldActivity; perhaps you misspelled it?

class HelloActivity < Activity
  has_one :hello_activity_detail
end

class WorldActivity < Activity
  has_one :world_activity_detail
end