feat: added creation endpoints

shop/models.py

@@ -1,4 +1,5 @@
 from decimal import Decimal
+from uuid import uuid4
 
 from django.db import models
 from django.utils import timezone
@@ -108,6 +109,12 @@ class Customer(models.Model):
 
 
 class OrderLine(models.Model):
+    order = models.ForeignKey(
+        "shop.Order",
+        on_delete=models.CASCADE,
+        related_name="lines",
+        verbose_name=_("Pedido"),
+    )
     product = models.ForeignKey(
         "shop.Product",
         on_delete=models.CASCADE,
@@ -163,7 +170,7 @@ class OrderLine(models.Model):
 
 
 class Order(models.Model):
-    lines = models.ManyToManyField("shop.OrderLine", verbose_name=_("Líneas"))
+    uuid = models.UUIDField(default=uuid4, verbose_name=_("UUID"), db_index=True)
     creation_date = models.DateTimeField(
         auto_now_add=True, verbose_name=_("Fecha de creación")
     )