Ruby on rails Rails 3-通过表单_在有效URL中生成嵌套资源？

我有以下表格_用于标记，配置文件包含它生成的URL，它无效，即标记如下：

<%= form_for([current_user,@profile], :html =>{:class => "contact_form",:multipart => true}) do |f| %>

用户模型

class User < ActiveRecord::Base
  has_one :profile, :inverse_of => :user
  accepts_nested_attributes_for :profile

---

我也有同样的问题。我的解决方案是，您必须像这样直接声明url：

<%= form_for([current_user,@profile], :url => user_profile_path, :html =>{:class => "contact_form",:multipart => true}) do |f| %>

user_profile_path，：html=>{:class=>“contact_form”，“multipart=>true}）do | f |%>

虽然我真的不知道为什么会发生这种事-也许任何人都可以解释

class Profile < ActiveRecord::Base
  belongs_to :user
  validates_presence_of :user

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
cancel_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
            user_profile POST   /users/:user_id/profile(.:format)      profiles#create
        new_user_profile GET    /users/:user_id/profile/new(.:format)  profiles#new
       edit_user_profile GET    /users/:user_id/profile/edit(.:format) profiles#edit
                         GET    /users/:user_id/profile(.:format)      profiles#show
                         PUT    /users/:user_id/profile(.:format)      profiles#update
                         DELETE /users/:user_id/profile(.:format)      profiles#destroy

<%= form_for([current_user,@profile], :url => user_profile_path, :html =>{:class => "contact_form",:multipart => true}) do |f| %>