add: add login api

core/apps/orders/apps.py

@@ -6,4 +6,5 @@ class OrdersConfig(AppConfig):
     name = 'core.apps.orders'
 
     def ready(self):
-        from . import admin 
+        from . import admin 
+        from . import signals

core/apps/orders/migrations/0003_order_order_number.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2 on 2025-09-03 16:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orders', '0002_orderitem_product'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='order',
+            name='order_number',
+            field=models.PositiveBigIntegerField(default=1),
+        ),
+    ]

core/apps/orders/models/order.py

@@ -6,8 +6,17 @@ from core.apps.products.models import Product
 
 
 class Order(BaseModel):
+    # STATUS = (
+    #     ('', ''),
+    #     ('', ''),
+    #     ('', ''),
+    #     ('', ''),
+    #     ('', '')
+    # )
     total_price = models.PositiveBigIntegerField(default=0)
     user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='orders') 
+    order_number = models.PositiveBigIntegerField(default=1)
+    # status = models.CharField(max_length=20, choices=STATUS)
 
     def __str__(self):
         return f'{self.user} order'

core/apps/orders/signals/__init__.py

@@ -0,0 +1 @@
+from .order import *

core/apps/orders/signals/order.py

@@ -0,0 +1,12 @@
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from core.apps.orders.models import Order
+
+
+@receiver(post_save, sender=Order)
+def set_order_number(sender, instance, created, **kwargs):
+    if created:
+        last_order = Order.objects.order_by('order_number').last()
+        instance.order_number = (last_order.order_number + 1) if last_order else 1
+        instance.save(update_fields=["order_number"])