Devise registration form, prepared for Bootstrap 3 (w/o Simple Form)

edit.html.haml

-# app/views/devise/registrations/edit.html.haml

%h1.page-header
  Edit
  = resource_name.to_s.humanize

= form_for resource, as: resource_name, url: registration_path(resource_name), html: { method: :put, class: 'form-horizontal' } do |f|
  = devise_error_messages!

  .form-group
    = f.label :email, class: 'col-sm-3 control-label'
    .col-sm-9
      = f.email_field :email, autofocus: true, class: 'form-control'

  - if devise_mapping.confirmable? && resource.pending_reconfirmation?
    Currently waiting confirmation for:
    = resource.unconfirmed_email

  .form-group
    = f.label :password, class: 'col-sm-3 control-label'
    .col-sm-9
      = f.password_field :password, autocomplete: "off", class: 'form-control'
      %span.help-block leave blank if you don't want to change it

  .form-group
    = f.label :password_confirmation, class: 'col-sm-3 control-label'
    .col-sm-9
      = f.password_field :password_confirmation, autocomplete: "off", class: 'form-control'

  .form-group
    = f.label :current_password, class: 'col-sm-3 control-label'
    .col-sm-9
      = f.password_field :current_password, autocomplete: "off", class: 'form-control'
      %span.help-block we need your current password to confirm your changes

  .form-group
    .col-sm-offset-3.col-sm-9
      = f.submit "Update", class: 'btn btn-primary', data: { wait: 'Updating…' }


%h3 Cancel my account

.row
  .col-sm-3.text-right
    %strong Unhappy?
  .col-sm-9
    = button_to "Cancel my account", registration_path(resource_name), data: { confirm: "Are you sure?" }, method: :delete, class: 'btn btn-danger'

%p= link_to "Back", :back