how to display total orders in django template within a loop - django

Question

hie i want to display the order for each customer within a loop this is my view
def clientes(request):
all_clientes = Utilizadores.objects.filter(user_type='cliente')
all_orders = Checkout.objects.all()
context={'all_clientes':all_clientes,'all_orders':all_orders}
return render(request,'todos-clientes.html',context)
my template:
{% for all_clientes in all_clientes %}
<div class="item_wrapp">
<div class="contxt _7000">
<div class="img-def-doc-2 _9090903">
{% if all_clientes.imagem%}
<div class="img_cliente"style="background-image: url({{ all_clientes.imagem.url }}");>
</div>
{% else %}
<div class="img_cliente"></div>
{% endif%}
</div>
<div class="main_name_do_wrapp">
<div class="nome_produto">{{all_clientes.nome}}</div>
</div>
</div>
<div class="extra_item_1_wrapp produto">
{% for all_orders in all_orders %}
{% if all_orders.user_id == all_clientes.id %}
<div class="data num_encomendas_cliente">{{
all_orders.user_id|length }} encomendas(here should be displayed the number of orders for this particular customer) </div>
{% endif %}
{% endfor %}
class Checkout(models.Model):
user_id = models.IntegerField(null=True)
order_number = models.CharField(max_length=200, null=True)
def __str__(self):
return self
class Utilizadores(models.Model): nome= models.CharField(max_length=100, null=True) def str(self): return self
`
any help i would appreciate thank you.