base of product-quota & list cities by province

apps/authentication/api/v1/api.py

@@ -161,6 +161,16 @@ class CityViewSet(ModelViewSet):
     queryset = City.objects.all()
     serializer_class = CitySerializer
 
+    def list(self, request, *args, **kwargs):
+        """ return list of cities by province """
+
+        serializer = self.serializer_class(
+            self.queryset.filter(
+                province_id=int(request.GET['province'])
+            ), many=True
+        )
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
 
 class ProvinceViewSet(ModelViewSet):
     """ Crud operations for province model """  #

apps/authentication/migrations/0021_city_province.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.0 on 2025-06-10 08:39
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0020_blacklistedaccesstoken'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='city',
+            name='province',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='cities', to='authentication.province'),
+        ),
+    ]

apps/authentication/models.py

@@ -59,6 +59,12 @@ class Province(BaseModel):  # noqa
 
 class City(BaseModel):
     name = models.CharField(max_length=50)
+    province = models.ForeignKey(
+        Province,
+        on_delete=models.CASCADE,
+        related_name='cities',
+        null=True
+    )
 
     def __str__(self):
         return f'{self.name}'