tap/app/views/users/edit.html.erb

<%= render 'flash' %>

<div class="row">
  <%= render 'sidebar' %>
  <div class="col-sm-9">
    <h2>Edit your settings</h2>
    <%= f_form_for @user do |f| %>
      <%= f.error_messages %>

      <%= f.file_field :avatar %>
      <p>
        If you check this option, nobody will be able to order stuff for you through koelkast.
        Only on your account things can be ordered.
      <p>
      <%= f.check_box :private %>

      <%= f.submit "Update" %>
    <% end %>
  </div>
</div>