允许使用cancancan访问不同的视图和路由?

时间:2015-09-18 23:33:03

标签: ruby-on-rails cancan

我使用cancan管理用户和管理员角色。我希望用户能够访问某些视图(" Cursos"," Credenciales"),但cancan不允许。我怎样才能让他们访问?所以,正在发生的是它尝试访问路由但返回到根,因为我指定它在应用程序控制器中执行它。 (当然它应该通过那条路线访问控制器。)感谢您的帮助!!

index.html.erb

<% if current_user %>
  <% if can? :new, @user %>
    <% if can? :new, @empleado  %>
      <li><%= link_to "Lista de Empleados", empleados_path %></li>
      <li> <%= link_to "Agregar Empleado", new_empleado_path %></li>
    <% end %>
  <% end %>      
  <li><%= link_to "Cursos", cursovence_path %></li>
  <li><%= link_to "Credenciales", credencialvence_path %></li>
<% end %>

ability.rb

include CanCan::Ability
def initialize(user)
  user ||= User.new 
  if user.admin?
    can :manage, :all
  else
    can :read, :all
    can :display, :all
  end
end

的routes.rb

devise_for :users 
root 'empleados#index'
resources :empleados
resources :users
post '/empleados/:id' => 'empleados#display'
get '/cursovence' => 'empleados#indexCursoVence'
get '/credencialvence' => 'empleados#indexCredencialVence'
get '/proxvacas' => 'empleados#indexProxVacas'

empleados_controller.rb

class EmpleadosController < ApplicationController
  before_action :authenticate_user!
  # load_and_authorize_resource - It did not work with this validation
  load_resource  #So, I changed it for only this one

  def index
   ....
  end      

  def new
   ....
  end    

end                                                 

application_controller.rb

class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
   rescue_from CanCan::AccessDenied do |exception|
       flash[:error] = "Access denied."
       redirect_to root_url
   end
end

1 个答案:

答案 0 :(得分:1)

在康康舞中,你可以根据符号而不是类别来分配能力(如果你没有基于你的能力的模型)https://github.com/ryanb/cancan/wiki/Non-RESTful-Controllers

因此,在您的视图中,检查can? :index, :cursoscan? :index, :credenciales,因为您已在您的能力中添加了can :read, :all

<% if can? :index, :cursos %>
  <li><%= link_to "Cursos", cursovence_path %></li>
<% end %>
<% if can? :index, :credenciales %>
  <li><%= link_to "Credenciales", credencialvence_path %></li>
<% end %>