app/views/orders/index.html.erb
<h1>Liste des commandes</h1>
<ul>
<% @orders.each do |order| %>
<li>
<a href="/orders/<%= order.id %>">
Commande n°<%= order.id %> de <%= order.authentication.fullname %>
</a>
</li>
<% end %>
</ul>
<a href="/orders/new">
<input type="submit" value="Passer commande" class="mt-3" id="btns">
</a>
<%= paginate @orders %>