app/views/users/registrations/edit.html.haml
= simple_form_for(@user, url: user_registration_path, method: :put) do |f|
%fieldset
%legend Edit User
= f.input :email
= f.input :password, hint: "Leave blank if you don't want to change it."
= f.input :password_confirmation
= f.input :current_password
.form-actions
= f.button :submit, 'Update', class: 'btn-primary'
= link_to 'Cancel', :back, class: 'btn'
= render partial: 'users/shared/links'