ruby on rails - 找不到用户'id'=

我正在创建一个博客，我想通过单击index.html.erb中的“uploader”链接来显示包含特定用户的所有帖子的配置文件第9行）。我使用了名为Pages的控制器并在其中定义了配置文件，并将其链接到“上传者”并传递了该帖子的用户。ruby on rails - 找不到用户'id'=

code screenshot

我收到错误

error screenshot

终端显示用户ID作为零

Started GET "/" for 127.0.0.1 at 2017-03-27 02:08:49 +0530 
Processing by PostsController#index as HTML 
    Post Load (0.5ms) SELECT "posts".* FROM "posts" ORDER BY created_at DESC 
    User Load (0.2ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", 4]] 
    User Load (0.2ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", 3]] 
    User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", 2]] 
    Rendered posts/index.html.erb within layouts/application (10.8ms) 
    User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT 1 [["id", 3]] 
Completed 200 OK in 84ms (Views: 81.4ms | ActiveRecord: 1.1ms) 


    Started GET "/pages/profile.3" for 127.0.0.1 at 2017-03-27 01:49:02 +0530 
    Processing by PagesController#profile as 
     User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", nil]] 
    Completed 404 Not Found in 1ms (ActiveRecord: 0.1ms) 

    ActiveRecord::RecordNotFound (Couldn't find User with 'id'=): 
     app/controllers/pages_controller.rb:3:in `profile'

什么时 “无法与 'ID'=查找用户”我做错了？任何更好的方法来做到这一点？

来源

2017-03-26 Hitesh kumar

你的问题是路线。这：

GET "/pages/profile.3"

真的应该是这样的：

GET "/pages/profile/3"

而这由你的路线导致缺少必要的参数。更改为

# routes.rb 
get 'pages/profile/:id

它应该工作。

来源

2017-03-26 21:13:41 Thilo

也一样。更新我的routes.rb以获得'pages/profile /：id'。现在我收到错误“Missing：controller key on routes definition，please check your routes。（ArgumentError）” –

经过一些Google搜索后，我发现这个链接（http://guides.rubyonrails.org/routing.html），我想通了我的路线应该是“get”pages/profile /：id'=>'pages＃profile'，如：'profile'“，我可以使用<％= link_to”user profile“，profile_path（user ）％> –

ruby​​ on rails - 找不到用户'id'=

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ruby on rails - 找不到用户'id'=