Change password

<%= form_for(@user, url: {action: "updatepass"}, html: {class: 'form-horizontal'}) do |f| %> <%= render partial: 'form_errors', locals: { what: @user } %>
<%= f.label :oldpassword, "Current password", class: 'col-sm-2 control-label' %>
<%= f.password_field :oldpassword, class: 'form-control' %>
<%= f.label :password, "New password", class: 'col-sm-2 control-label' %>
<%= f.password_field :password, class: 'form-control' %>
<%= f.label :password_confirmation, "Confirm password", class: 'col-sm-2 control-label' %>
<%= f.password_field :password_confirmation, class: 'form-control' %>
<%= f.submit "Change", id: 'submit', class: 'btn btn-default' %>
<% end %>