Question

我对Ruby on Rails很陌生，我正在努力学习，所以我尝试了一个新功能。

我现在得到的错误是：

ActionController::RoutingError (No route matches [POST] "/users/2"):

我正在尝试创建一个功能来将其他用户提升为管理员，这只能作为管理员使用。我的 users_controller.rb 包含：

  def promote
    if !User.find(params[:id]).admin?
      User.find(params[:id]).toggle!(:admin)
      flash[:success] = "User is promoted to admin."
      redirect_to users_url
    else
      flash[:danger] = "Admins can't demote other admins."
      redirect_to users_url
    end
  end

我的 _user.html.erb 包含：

<%= link_to user.name, user %>
  <% if current_user.admin? && !current_user?(user) %>
    <% if !user.admin? %> 
      <br /> <%= link_to "Delete User", user, method: :delete,
                                data: { confirm: "You sure?" } %>
       | <%= link_to "Promote to Admin", user, method: :promote, 
                                data: { confirm: "You sure?" } %>
    <% end %>
<% end %>

然后我们有 routes.rb ，其中包含：

Rails.application.routes.draw do
  get 'password_resets/new'
  get 'password_resets/edit'
  get 'sessions/new'
  get 'users/new'
  # The priority is based upon order of creation: first created -> highest priority.
  # See how all your routes lay out with "rake routes".
  # You can have the root of your site routed with "root"
  # root 'welcome#index'
  root 'static_pages#home'
  get 'help' => 'static_pages#help'
  get 'about' => 'static_pages#about'
  get 'contact' => 'static_pages#contact'
  get 'signup' => 'users#new'
  get 'login' => 'sessions#new'
  post 'login' => 'sessions#create'
  delete 'logout' => 'sessions#destroy'
  resources :users do
    member do
      get :following, :followers
    end
  end
  resources :users
  resources :account_activations, only: [:edit]
  resources :password_resets,     only: [:new, :create, :edit, :update]
  resources :microposts,          only: [:create, :destroy]
  resources :relationships,       only: [:create, :destroy]
end

我无法确切地发现出了什么问题。一些建议会很棒！

Answer 1

def promote @user = User.find(params[:id]) if @user.admin? @user.toggle!(:admin) flash[:success] = "User is promoted to admin." redirect_to users_path else flash[:notice] = "Admins can't demote other admins." redirect_to users_path end end

<%= link_to @user.name, @user %> <% if current_user.admin? && !current_user?(@user) %> <% if !@user.admin? %> <br /> <%= link_to "Delete User", @user, method: :delete, data: { confirm: "You sure?" } %> | <%= link_to "Promote to Admin", promote_users_path(user), method: :put, data: { confirm: "You sure?" } %> <% end %> <% end %>

路线

resources :users do member do get :following, :followers, put :promote end end

或

match '/users', to: 'users#promote', via: :put

Ruby on Rails，提升管理功能

1 个答案: