Rails 4如何在出错时覆盖设计响应路径

Question

我一直在努力争取这个.我有一个Rails4/Devise 3.1应用程序,系统中有两个用户:

1. 毕业生
2. 雇主

和一个设计用户可以通过多态:profile关联成为研究生或雇主.我有毕业生通过/graduate/sign_up路径和雇主通过/employer/sign_up路径/views/devise/registrations/new.html.erb注册到同一个视图的路径(因为他们的注册表格几乎相同 - 电子邮件和密码).一切正常,除非有验证错误,RegistrationsController#create.respond_with resource总是将两种用户类型重定向到/users路径,我需要将它们重定向回原来的位置,例如/graduate/sign_up或/employer/sign_up分别.我试着更换respond_with用redirect_to,但我结束了相关的错误信息丢失的资源对象.任何人都知道如何做到这一点？

这些是我的模特:

class User < ActiveRecord::Base
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  belongs_to :profile, polymorphic: true
end

class Graduate < ActiveRecord::Base
  has_one :user, as: :profile 
end

class Employer < ActiveRecord::Base
  has_one :user, as: :profile
end

注册管理员:

class RegistrationsController < Devise::RegistrationsController

  def create
    build_resource sign_up_params

    user_type = params[:user][:user_type]
    # This gets set to either 'Graduate' or 'Employer'
    child_class_name = user_type.downcase.camelize
    resource.profile = child_class_name.constantize.new

    if resource.save
      if resource.active_for_authentication?
        set_flash_message :notice, :signed_up if is_navigational_format?
        sign_up(resource_name, resource)
        respond_with resource, :location => after_sign_up_path_for(resource)
      else
        set_flash_message :notice, :"signed_up_but_#{resource.inactive_message}" if is_navigational_format?
        expire_session_data_after_sign_in!
        respond_with resource, :location => after_inactive_sign_up_path_for(resource)
      end
    else
      clean_up_passwords(resource)
      respond_with resource
    end
  end
end

注册视图(同样适用于毕业生和雇主):

<h2>Sign up</h2>

<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
  <%= devise_error_messages! %>

  <div><%= f.label :email %><br />
  <%= f.email_field :email, :autofocus => true %></div>

  <div><%= f.label :password %><br />
  <%= f.password_field :password %></div>

  <div><%= f.label :password_confirmation %><br />
  <%= f.password_field :password_confirmation %></div>
  <%= hidden_field resource_name, :user_type, value: params[:user][:user_type] %>

  <div><%= f.submit "Sign up" %></div>
<% end %>

<%= render "devise/shared/links" %>

这些是我的路线:

 devise_for :users, :controllers => { :registrations => 'registrations' }

 devise_scope :user do
    match 'graduate/sign_up', to: 'registrations#new', user: { user_type: 'graduate' }, via: [:get]
    match 'employer/sign_up', to: 'registrations#new', user: { user_type: 'employer' }, via: [:get]
  end

  root to: 'home#index'

耙路线的输出;

$ rake routes
                  Prefix Verb     URI Pattern                    Controller#Action
        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
                         PATCH    /users/password(.:format)      devise/passwords#update
                         PUT      /users/password(.:format)      devise/passwords#update
cancel_user_registration GET      /users/cancel(.:format)        registrations#cancel
       user_registration POST     /users(.:format)               registrations#create
   new_user_registration GET      /users/sign_up(.:format)       registrations#new
  edit_user_registration GET      /users/edit(.:format)          registrations#edit
                         PATCH    /users(.:format)               registrations#update
                         PUT      /users(.:format)               registrations#update
                         DELETE   /users(.:format)               registrations#destroy
        graduate_sign_up GET /graduate/sign_up(.:format)    registrations#new {:user=>{:user_type=>"graduate"}}
        employer_sign_up GET /employer/sign_up(.:format)    registrations#new {:user=>{:user_type=>"employer"}}
                    root GET      /   

Answer 1

显然,:location如果您有一个现有模板,那么该参数将被忽略,在本例中为#index.我仍然不明白为什么当资源有错误时,Devise会重定向到#index或#show.

当我发现更多时,我会更新这个答案.