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

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

<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name), :html => { :method => :put }) do |f| %>
  <%= devise_error_messages! %>

  <% if devise_mapping.confirmable? && resource.pending_reconfirmation? %>
    <div>Currently waiting confirmation for: <%= resource.unconfirmed_email %></div>
  <% end %>

  <%= form_password_field f, :password %>
  <%= form_password_field f, :password_confirmation %>

  <%= form_password_field f, :current_password %>

  <%= f.label :avatar %>
  <%= f.file_field :avatar %>

  <%= f.submit "Update", class: 'btn btn-primary' %>
<% 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 %>