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，他们应该被重定向到应用程序的根目录，即“posts#index”。当普通用户注册时，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=>"show", :controller=>"dashboard"}" 错误。我在管理员的用户表中添加了 is_Admin 列。
应用控制器.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>
路线.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
堆栈树
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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我在 application_controller.rb 中定义了“def after_sign_in_path_for(user)”，它根据用户类型决定重定向到哪里。我想，问题就在这里。