ruby on rails - 找不到用戶'id'=

我正在創建一個博客，我想通過單擊index.html.erb中的「uploader」鏈接來顯示包含特定用戶的所有帖子的配置文件第9行）。我使用了名爲Pages的控制器並在其中定義了配置文件，並將其鏈接到「上傳者」並傳遞了該帖子的用戶。ruby on rails - 找不到用戶'id'=

code screenshot

我收到錯誤

error screenshot

終端顯示用戶ID作爲零

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'

什麼時「無法與 'ID'=查找用戶」我做錯了？任何更好的方法來做到這一點？

來源

2017-03-26 Hitesh kumar

你的問題是路線。這：

GET "/pages/profile.3"

真的應該是這樣的：

GET "/pages/profile/3"

而這由你的路線導致缺少必要的參數。更改爲

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

它應該工作。

來源

2017-03-26 21:13:41 Thilo

也一樣。更新我的routes.rb以獲得'pages/profile /：id'。現在我收到錯誤「Missing：controller key on routes definition，please check your routes。（ArgumentError）」 –

經過一些Google搜索後，我發現這個鏈接（http://guides.rubyonrails.org/routing.html），我想通了我的路線應該是「get」pages/profile /：id'=>'pages＃profile'，如：'profile'「，我可以使用<％= link_to」user profile「，profile_path（user ）％> –

ruby​​ on rails - 找不到用戶'id'=

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ruby on rails - 找不到用戶'id'=