ruby-on-rails-3 – Ruby on Rails更新设计用户属性而无需密码

我的应用程序中有两类帐户.我正在尝试更新其中一个(投资者)的属性.它们是通过设计使用一种形式创建的.因此,当投资者试图更新其帐户信息时,表单要求他们提供并确认其密码.我希望他们能够编辑(名字,姓氏等),而不必输入他们的密码,除非他们想要用这些字段更改他们的密码.

这是我在Investor控制器中的更新方法

def update

    session[:investor_params] ||= {}
    session[:investor_params].deep_merge!(params[:investor]) if params[:investor].present?

    @investor.attributes = session[:investor_params]

    params[:investor_params].delete(:password) if params[:investor_params][:password].blank?
    params[:investor_params].delete(:password_confirmation) if params[:investor_params][:password_confirmation].blank?
    respond_to do |format|
    if @investor.update_attributes(params[:investor_params]) 
      session[:investor_params] = nil
      sign_in(@investor.account,:bypass => true)
      format.html { redirect_to(projects_url,:notice => 'Investor was successfully updated.') }
      format.xml  { render :xml => @investor,:status => :created,:location => @investor }

    else
      format.html { render :action => "edit",:layout => "investor" }
      format.xml  { render :xml => @investor.errors,:status => :unprocessable_entity }
    end
    end
  end

这是我的注册控制器

class RegistrationsController < Devise::RegistrationsController

  layout "index"

  protected

  def after_sign_up_path_for(resource)
    new_user_url(:account => resource)
  end
end

这是我的routes.rb

devise_for :accounts,:controllers => { 
    :registrations => 'registrations',:passwords     => 'passwords',:sessions      => 'sessions' }
  devise_scope :account do
    root :to => 'registrations#new'

这是我的投资者模型的一部分,它引用了帐户模型的属性.

class Investor < ActiveRecord::Base

  has_one :account,:as => :profile

  accepts_nested_attributes_for :account

以下是引用的帐户模型部分

class Account < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable,:encryptable,:confirmable,:lockable,:timeoutable and :omniauthable
  devise :database_authenticatable,:registerable,:recoverable,:rememberable,:trackable,:validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email,:password,:password_confirmation,:remember_me,:invited_by,:invited_by_id

我尝试了关于设计github repo的建议,但我无法让它为我工作.

如果您有任何建议或者我遗失了什么,请告诉我！