tap/app/views/devise/registrations/edit.html.erb

<h2>Edit <%= resource_name.to_s.humanize %></h2>
<%= render 'flash' %>

<%= f_form_for(resource, :as => resource_name, :url => registration_path(resource_name), :html => { :method => :put }) do |f| %>
  <%= f.error_messages %>

  <%= f.password_field :password %>
  <%= f.password_field :password_confirmation %>

  <%= f.password_field :current_password %>

  <%= f.file_field :avatar %>

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

<% if current_user.dagschotel.present? %>
  <h3>Current Dagschotel:</h3>
  <div>
    <%= image_tag current_user.dagschotel.avatar %>
  </div>
<% end %>

<h4>Choose new Dagschotel:</h4>
<% Product.all.each do |p| %>
  <%= link_to image_tag(p.avatar), user_dagschotel_path(current_user, p) %>
<% end %>