phoenix-framework - 脚手架应用程序时的多对多关系

Question

我想知道为 phoenix.gen.html 指定了多少对多关系或 phoenix.gen.json在搭建应用程序时。常用 references创建一对多关系，如下所示:

mix phoenix.gen.model Video videos name:string approved_at:datetime description:text likes:integer views:integer user_id:references:users

但是如何传递多对多字段呢？

Answer 1

跑

mix phoenix.gen.model UserVideo users_videos user_id:references:users video_id:references:videos

然后更新您的架构

alias MyApp.{User, UserVideo}
schema "videos" do
  ...
  many_to_many :users, User, join_through: UserVideo
end

alias MyApp.{Video, UserVideo}
schema "users" do
  ...
  many_to_many :videos, Video, join_through: UserVideo
end