Why does rails keep prompting me for post?

Rails
1

Hi, was tryin to do a restful method to allow users to change
password.

This is what i did:

  1. use restful authentication plugin.

  2. use the code here
    http://www.railslodge.com/plugins/75-restful-authentication/documentations/1-change-password

  3. realise that
    no1. i am using something funny like /v1/users/:permalink/
    change_password and not just /change_password

no2. i cant use html.erb for some reasons hence i resorted to
using .rhtml

  1. end up re writing the view code as such:
<% form_for (:url => change_password_update_user_path(current_user.permalink), :html => { :method => :put }) do |f| %>
Old Password <%= password_field_tag 'old_password', @old_password, :size => 45, :class => 'text' %>
New Password <%= password_field_tag 'password', {}, :size => 45, :class => 'text' %> Between 4 and 40 characters
Confirm new password <%= password_field_tag 'password_confirmation', {}, :size => 45, :class => 'text' %>

<%= submit_tag ‘Change password’ %>

<%end%>

wrote my routes.rb
base = ‘/v1’

map.resources :users, :path_prefix => base, :member =>
{:change_password => :get, :change_password_update => :put} do |users|
users.resources :orders, :path_prefix => ‘/v1/users/:permalink’

end

  1. got this error when i tried to attempt to change my password and
    press the submit button
    no route found to match “/v1/users/testuser1/change_password” with
    {:method=>:post}

why is it that after submitting the form, i will trigger a POST to
change_password_user_path?

please advise