add: order model, order create api, order create serializer, order item model

core/apps/orders/migrations/0001_initial.py

@@ -0,0 +1,45 @@
+# Generated by Django 5.2 on 2025-08-29 16:13
+
+import django.db.models.deletion
+import uuid
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('total_price', models.PositiveBigIntegerField(default=0)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'verbose_name': 'Buyurtma',
+                'verbose_name_plural': 'Buyurtmalar',
+            },
+        ),
+        migrations.CreateModel(
+            name='OrderItem',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('quantity', models.PositiveIntegerField()),
+                ('price', models.PositiveBigIntegerField()),
+                ('order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='orders.order')),
+            ],
+            options={
+                'verbose_name': 'Buyurtma elementi',
+                'verbose_name_plural': 'Buyurtma elementlari',
+            },
+        ),
+    ]

core/apps/orders/migrations/0002_orderitem_product.py

@@ -0,0 +1,20 @@
+# Generated by Django 5.2 on 2025-08-29 16:17
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('orders', '0001_initial'),
+        ('products', '0002_category_name_ru_category_name_uz_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='orderitem',
+            name='product',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='items', to='products.product'),
+        ),
+    ]