Rails&设计:覆盖SessionsController

时间:2011-05-24 11:59:18

标签: ruby-on-rails ruby-on-rails-3 devise

我正在尝试在我的主页上设置登录表单。我设法按照Wiki

进行操作

除非登录信息不正确,否则会呈现/devise/session/new.html.erb。 我不希望这样。我希望我的用户被重定向到root_url WITH 错误消息中的错误。

我能够覆盖registrations_controller.rb以获取其他功能,但覆盖sessions_controller.rb会给我带来很多麻烦。

我想改变做我想做的事情是什么?如果登录正确,我仍然希望将用户重定向到after_sign_in_path。 原始控制器为here

到目前为止,我知道我必须在我的routes.rb

中这样做

devise_for :users, :controllers => { :registrations => "registrations", :sessions => "sessions" }

我还设置了controller/sessions_controller.rb

class SessionsController < Devise::SessionsController

  # GET /resource/sign_in
  def new
    resource = build_resource
    clean_up_passwords(resource)
    respond_with_navigational(resource, stub_options(resource)){ render_with_scope :new }
  end

end

我觉得我必须改变render_with_scope :new但是......怎么样? 在该版本中,我收到错误undefined method 'users_url' for #<SessionsController:0x5072c88>

好吧,我会等你的宝贵帮助

PS:post帮助我处理订阅错误。也许这对登录错误有帮助吗?

====编辑====

根据第一个答案建议,我还添加到initializers/devise.rb

config.warden do |manager|
  manager.failure_app = CustomFailure
 end

当用户未登录并尝试访问“受限”区域时,他会被重定向到root_url但是当登录出错时,我现在出现以下错误:

The action 'devise/sessions#new' could not be found for Devise::SessionsController

(PS:我删除了使用会话控制器执行的所有操作,如果成功则登录工作)

===编辑2 ===

Wiki之后,重定向工作完美但是我没有任何错误通知。

我正在显示警告/通知flash消息,如果这改变了什么

<% flash.each do |name, msg| %>          
  <% if msg.class == Array %>
    <% msg.each do |message| %>
    <%= content_tag :p, message, :id => "flash_#{name}" %>
  <% end %>
  <% else %>          
    <%= content_tag :p, msg, :id => "flash_#{name}" %>          
  <% end %>
<% end %>

===最终更新===

接受的答案有效。只是不要忘记显示flash alerts

3 个答案:

答案 0 :(得分:14)

您必须覆盖自定义故障设计类。

在lib / custom_failure.rb

下添加此自定义失败类
class CustomFailure < Devise::FailureApp
  def respond
    if http_auth?
      http_auth
    elsif warden_options[:recall]
        recall
    else
      redirect
    end
  end

  def redirect
      store_location!
      flash[:alert] = i18n_message unless flash[:notice]
      redirect_to "/"
  end

  def recall
    env["PATH_INFO"] = attempted_path
    flash.now[:alert] = i18n_message(:invalid)
    self.response = recall_controller.action(warden_options[:recall]).call(env)
  end

  protected

  def i18n_message(default = nil)
    message = warden.message || warden_options[:message] || default || :unauthenticated

    if message.is_a?(Symbol)
      I18n.t(:"#{scope}.#{message}", :resource_name => scope,
             :scope => "devise.failure", :default => [message, message.to_s])
    else
      message.to_s
    end
  end

  def warden_options
    env['warden.options']
  end

  def warden
    env['warden']
  end

  def recall_controller
    "#{params[:controller].camelize}Controller".constantize
  end


  def attempted_path
    warden_options[:attempted_path]
  end

  def store_location!
    session[:"#{scope}_return_to"] = attempted_path if request.get? && !http_auth?
  end

  def attempted_path
    warden_options[:attempted_path]
  end

  def http_auth?
    !Devise.navigational_formats.include?(request_format) || (request.xhr? && Devise.http_authenticatable_on_xhr)
  end
end

在config / application.rb下写下

config.autoload_paths += %W(#{config.root}/lib)

_________________编辑__________________

你说当'注册出错'时,这意味着控件应该是registrations_controller create方法。我想有些东西肯定是错的。尝试添加这些路线。

devise_for :users

  devise_scope :user do
    root :to => "devise/sessions#new"
    get "sign_in", :to => "devise/sessions#new"
    get "sign_out", :to => "devise/sessions#destroy"
    get "sign_up", :to => "devise/registrations#new"
  end

________________编辑2 ________________

在views / devise / registrations / new.html.erb

中添加此内容
<%= devise_error_messages! %>

答案 1 :(得分:3)

如果在覆盖设计会话控制器时遇到错误undefined method 'users_url' for #<SessionsController:0x5072c88>,则可以提供如下路径名称。您错过的重要补充是, :as => :users

  devise_scope :user do
    root :to => "devise/sessions#new", :as => :users
    get "sign_in", :to => "devise/sessions#new"
    get "sign_out", :to => "devise/sessions#destroy"
    get "sign_up", :to => "devise/registrations#new"
  end

上述路由名称可能与现有或未来路由冲突。作为替代方案,我发现这种设置往往效果很好:

  devise_for :users,
    :path_names  => { :sign_out => 'logout', 
                      :sign_in  => 'login', 
                      :sign_up  => 'register' },
    :controllers => { :sessions => 'users/sessions' } do

      # Sessions
      post '/login'         => 'users/sessions#create',       :as => :user_session
      get  '/login'         => 'users/sessions#new',          :as => :new_user_session
      get  '/logout'        => 'users/sessions#destroy',      :as => :destroy_user_session

      # Passwords
      post '/password'      => 'devise/passwords#create',     :as => :user_password
      put  '/password'      => 'devise/passwords#update'
      get  '/password/new'  => 'devise/passwords#new',        :as => :new_user_password
      get  '/password/edit' => 'devise/passwords#edit',       :as => :edit_user_password

      # Registrations
      post   '/register'    => 'devise/registrations#create', :as => :user_registration
      get    '/register'    => 'devise/registrations#new',    :as => :new_user_registration
      get    '/account'     => 'devise/registrations#edit',   :as => :edit_user_registration
      put    '/account'     => 'devise/registrations#update'
      delete '/account'     => 'devise/registrations#destroy'

  end

答案 2 :(得分:0)

调试提示尝试删除任何记录(用户将是连贯的);如果你去show动作,它不是一个设计配置问题。对于这种情况,请继续(其他案例在这里回答)

我无法看到您在视图中调用根javascript文件的位置。

我在这个问题上几次使用不同的布局设置不同的javascript设置。无论你的标题是什么,通话

<%= javascript_include_tag 'my-differntly-fangled-application' %>

需要有相关的清单文件包括

//= require jquery
//= require jquery_ujs