Rails: 一对多参数

Question

我正在为我的运动队制作一个网站，球员们可以在上面发表博文。

class Player < ApplicationRecord

  has_many :blogs, dependent: :destroy

end


class Blog < ApplicationRecord

  belongs_to :player

end

我的问题是：

使用以下两个参数设置 route/controller 动作有什么区别？他们都给我完全一样的东西。

1)

路线：

get "players/:player_id/posts" => "blogs#show", as: "player_posts"

控制器动作：

class BlogsController < ApplicationController
    def show
        @player = Player.find(params[:player_id])
        @blogs = @player.blogs
    end
end

2)

路线：

get "players/:id/posts" => "blogs#show", as: "player_posts"

控制器动作：

class BlogsController < ApplicationController
    def show
        @player = Player.find(params[:id])
        @blogs = @player.blogs
    end
end

Answer 1

What is the difference between setting up the route/controller action with the following two params?

这两个命名路由之间没有区别，除了您使用的是不同键(:player_id & :id)。我建议第一条路线，因为您在 博客控制器 [ 中获取 players 实例 =25=].

get "players/:player_id/posts" => "blogs#show", as: "player_posts" #controller action: class BlogsController < ApplicationController def show @player = Player.find(params[:player_id]) #players instance @blogs = @player.blogs end end

Rails: 一对多参数

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