refactor to use django template string

musician/templates/musician/billing.html

@@ -27,7 +27,7 @@
   {% for bill in object_list %}
   <tr>
     <th scope="row">{{ bill.number }}</th>
-    <td>{{ bill.created_on }}</td>
+    <td>{{ bill.created_on|date:"d/m/Y" }}</td>
     <td>{{ bill.type }}</td>
     <td>{{ bill.total|floatformat:2|localize }}€</td>
     <td><a class="text-dark" href="{% url 'musician:bill-download' bill.id %}" target="_blank" rel="noopener noreferrer"><i class="fas fa-file-pdf"></i></a></td>

musician/views.py

@@ -183,7 +183,7 @@ class BillingView(ServiceListView):
         qs = super().get_queryset()
         qs = sorted(qs, key=lambda x: x.created_on, reverse=True)
         for q in qs:
-            q.created_on = datetime.datetime.strptime(q.created_on, "%Y-%m-%d").strftime("%d/%m/%Y")
+            q.created_on = datetime.datetime.strptime(q.created_on, "%Y-%m-%d")
         return qs