Rails - Aug 2010 - Devise :current_password validations and checking (how???)

Hi Guys,

In my devise applications in Rails 3, I created a separate form under my
SettingsController class of which it handles the ''Change
Password'' of
the User Model, so i can manipulate the current_user in the
SettingsController.

Now, I followed the set-up in the Devise/Views on how to update the form
using ''Change password''  and either way update User for
current_password
change but I''ve no luck on the implementation.  I need you experties

My question is, how to check the my :current_password to the
params[:user][:current_password] I tried to submit in the form.  Meaning
how can the devise check the submitted params[:user][:current_password]
to match and validate on the current_user.pasword

This is my code, i''m using HAML
I''m also using   config.encryptor = :restful_authentication_sha1
since I migrated from auth_logic to devise authentication tool

"Views/Settings/change_password.haml" goes like this

***************************************************************
%aside#sidebar
  %nav.leftbar
    %ul
      %li.pwd= link_to "Password", change_password_path

%section#content.w.r
  = form_for(@user, :as => :user, :url => change_password_path(:user))
do |f|
    %h1 Change your password
    %fieldset
      %div
        = f.hidden_field :reset_password_token
      %div
        = f.label :current_password
        = f.password_field :current_password, :autofocus => true
      %div
        = f.label :password
        = f.password_field :password
      %div
        = f.label :password_confirmation
        = f.password_field :password_confirmation

      .action
        = f.submit "Change password"
        or
        = link_to "Cancel", settings_path
***************************************************************

"SettingsController" goes like this below using change_password method

***************************************************************
def change_password
    if params[:user]
      begin
        current_user.update_attributes!(:password =>
params[:user][:password])
        flash[:notice] = "Password successfully changed"
        redirect_to settings_path
      rescue Exception => msg
        flash[:notice] = msg
      end
    else
      @user = current_user
    end
  end
***************************************************************
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