渲染名为路线的轨道

Question

如何从控制器正确渲染名为路线的轨道？

routes.rb：

get "logout" => "sessions#destroy", :as => "logout"
get "login" => "sessions#new", :as => "login"
get "signup" => "users#new", :as => "signup"

root :to => "home#index"

resources :users
resources :sessions
resources :likes

user_controller.rb：

def new
  @user = User.new
end

def create
  @user = User.new params[:user]
  if @user.save
    login(params[:user][:email], params[:user][:password])
    redirect_to root_url, :notice => "Welcome! You have signed up successfully."
  else
    render :new
  end
end

问题是：注册页面位于 /signup 上，并且当 @user 中的数据未正确填写且 render 时： new 被调用，而不是转到 url /signup，而是转到 /users。我会使用 redirect_to 但 id 不喜欢这样做，因为我希望将错误保存在页面上以告诉用户未提供哪些数据。

添加 match "signup" => 后更新“用户#创建”，：via => “帖子”

root             /                            {:controller=>"home", :action=>"index"}
users     GET    /users(.:format)             {:action=>"index", :controller=>"users"}
          POST   /users(.:format)             {:action=>"create", :controller=>"users"}
edit_user GET    /users/:id/edit(.:format)    {:action=>"edit", :controller=>"users"}
user      GET    /users/:id(.:format)         {:action=>"show", :controller=>"users"}
          PUT    /users/:id(.:format)         {:action=>"update", :controller=>"users"}
          DELETE /users/:id(.:format)         {:action=>"destroy", :controller=>"users"}
signup    GET    /signup(.:format)            {:action=>"new", :controller=>"users"}
          POST   /signup(.:format)            {:action=>"create", :controller=>"users"}

谢谢

Answer 1

还添加此路线：

match "signup" => "users#create", :via => "post"

Answer 2

在routes.rb中，您可以添加

get "signup", to: "users#new"
post "signup", to: "users#create"
put "signup", to: "users#update"

并在注册表表单中 - 检查signup_path

form_for(resource, as: resource_name, url: signup_path, html: {method: 'post'})

对于使用过其他读者 >devise_for :users，可以将路由定义为：

devise_scope :user do
  get "signup", to: "devise/registrations#new"
  post "signup", to: "devise/registrations#create"
  put "signup", to: "devise/registrations#update"
end

和注册表单如上。

通过添加此路由，即使用户填写注册表单时出现一些错误，您也可以使用命名路由，例如（注册，注册）。