runosaari.net/lib/runosaari_web/templates/visitor/edit.html.eex

<section class="main">
    <h1>Muokkaa osallistujan tietoja</h1>

    <%= render "form.html", Map.put(assigns, :action, Routes.admin_visitor_path(@conn, :update, @visitor)) %>

    <span><%= link "Takaisin", to: Routes.admin_visitor_path(@conn, :index) %></span>
</section>