我希望当管理员登录时，他应该被重定向到“仪表板”页面，如果普通用户登录，则应该重定向应用程序的根目录，即“posts #index”。 普通用户注册时，它完美地工作意味着它将用户带到应用程序的根路径。 但是当管理员登录时，它显示“路由错误没有路由匹配{：action =＆gt;”show“，：controller =＆gt;”dashboard“}”错误。我在Admin表的User表中添加了is_Admin列。
ApplicationController.rb
class ApplicationController < ActionController::Base
protect_from_forgery
def after_sign_in_path_for(user)
if current_user.is_Admin?
redirect_to dashboard_path
else
:root
end
end
end
Dashboard_controller.rb
class DashboardController < ApplicationController
def index
@users = User.all
end
end
视图/仪表板/ index.html.erb
<h2>Admin Area</h2>
<table>
<tr>
<th> User Email </th>
<th> User Registered Time</th>
<th> Login Count</th>
</tr>
<% @users.each do |user| %>
<tr>
<td><%= user.email %></td>
<td><%= user.created_at %></td>
<td><%= user. sign_in_count %></td>
</tr>
<% end %>
</table>
的routes.rb
Infra::Application.routes.draw do
devise_for :users
resources :posts
root :to => "posts#index"
#match "dashboard" => "dashboard#index"
resources :dashboard
end
rake路由输出如下：
rake routes
new_user_session GET /users/sign_in(.:format) devise/sessions#new
user_session POST /users/sign_in(.:format) devise/sessions#create
destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy
user_password POST /users/password(.:format) devise/passwords#create
new_user_password GET /users/password/new(.:format) devise/passwords#new
edit_user_password GET /users/password/edit(.:format) devise/passwords#edit
PUT /users/password(.:format) devise/passwords#update
ancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
user_registration POST /users(.:format) devise/registrations#create
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
posts GET /posts(.:format) posts#index
POST /posts(.:format) posts#create
new_post GET /posts/new(.:format) posts#new
edit_post GET /posts/:id/edit(.:format) posts#edit
post GET /posts/:id(.:format) posts#show
PUT /posts/:id(.:format) posts#update
DELETE /posts/:id(.:format) posts#destroy
root / posts#index
dashboard_index GET /dashboard(.:format) dashboard#index
POST /dashboard(.:format) dashboard#create
new_dashboard GET /dashboard/new(.:format) dashboard#new
edit_dashboard GET /dashboard/:id/edit(.:format) dashboard#edit
dashboard GET /dashboard/:id(.:format) dashboard#show
PUT /dashboard/:id(.:format) dashboard#update
DELETE /dashboard/:id(.:format) dashboard#destroy
StackTree
Started POST "/users/sign_in" for 127.0.0.1 at 2013-03-31 01:28:36 +0530
Processing by Devise::SessionsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"j5KOmGDpI7Xwit4U7JUysB3EqhIogljjCDlSIK158/s=", "user"=>{"email"=>"vieenaysiingh@gmail.com", "password"=>"[FILTERED]", "remember_me"=>"0"}, "commit"=>"Sign in"}
[1m[36mUser Load (1.0ms)[0m [1mSELECT "users".* FROM "users" WHERE "users"."email" = 'vieenaysiingh@gmail.com' LIMIT 1[0m
[1m[35m (0.0ms)[0m begin transaction
[1m[36m (2.0ms)[0m [1mUPDATE "users" SET "last_sign_in_at" = '2013-03-30 19:44:14.252484', "current_sign_in_at" = '2013-03-30 19:58:37.089835', "sign_in_count" = 50, "updated_at" = '2013-03-30 19:58:37.091835' WHERE "users"."id" = 1[0m
[1m[35m (195.0ms)[0m commit transaction
Redirected to http://localhost:3000/dashboard
Completed 500 Internal Server Error in 423ms
AbstractController::DoubleRenderError (Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like "redirect_to(...) and return".):
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Rendered c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.12/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (103.0ms)
我在application_controller.rb中定义了“def after_sign_in_path_for（user）”，它决定了根据用户类型重定向的位置。我想，问题在这里。
答案 0 :(得分：2)
方法after_sign_in_path_for应该返回路径，而不是重定向。
class ApplicationController < ActionController::Base
protect_from_forgery
def after_sign_in_path_for(user)
if current_user.is_Admin?
dashboard_index_path
else
:root
end
end
end
答案 1 :(得分：0)
更改
resources :dashboard
到
resource :dashboard
答案 2 :(得分：0)
1） - 无论何时更改路线，您都应该重启轨道过程
然后我会尝试使用匹配仪表板的资源匹配（猜测你不需要所有的CRUD操作？）
match "dashboard" => "dashboard#index"
重定向应该是
redirect_to dashboard_path
如果你确实使用了资源，它将是redirect_to dashboards_path（索引操作的复数）
路线的顺序也很重要，也许你的比赛更接近路线的顶部？
答案 3 :(得分：0)
使用它来使其正常工作：
redirect_to main_app.root_path
将main_app添加到您的路径路径