与同一事物的多种关系 Rails
我对 Rails 很陌生，所以请原谅我的知识有限。
如果我想创建一个 Web 应用程序供飞行员记录航班，我可能有以下模型...
class Flight < ActiveRecord::Base
belongs_to :plane
belongs_to :pilot
end
class Plane < ActiveRecord::Base
has_many :flights
end
class Pilot < ActiveRecord::Base
has_many :flights
end
但是，如果我希望我的航班类别与机场类别相关两次，一次与始发机场相关，另一次与始发机场相关目的地机场，我该怎么做？
另外，我将如何在机场方面建立关系？...
对此的任何建议将不胜感激。
I'm very new to rails so please forgive my limited knowledge.
If I wanted to create a web app for pilots to log flights, I might have the following models...
class Flight < ActiveRecord::Base
belongs_to :plane
belongs_to :pilot
end
class Plane < ActiveRecord::Base
has_many :flights
end
class Pilot < ActiveRecord::Base
has_many :flights
end
However, if I wanted my Flight class to be related to an Airport class twice, one for the origin airport, and again for the destination airport, how would I do that?
Also how would I then set the relationship up on the airport side?...
Any advice on this would be much appreciated.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
您必须设置 class_name 和foreign_key 选项。你可以尝试这样的事情：
显然，命名取决于你。 文档中有一个示例。
You have to set the class_name and the foreign_key options. You could try something like:
Obviously, naming is up to you. There is an example in docs.