feat: added creation endpoints

shop/utils.py

@@ -5,12 +5,15 @@ from shop.models import OrderLine, Tax, Product, Order, Customer
 from django.db.models import QuerySet
 
 
-def create_order_line_for_product(product: Product, quantity: Decimal, tax: Tax):
+def create_order_line_for_product(
+    product: Product, quantity: Decimal, tax: Tax, order: Order
+):
     price = product.prices.last().price
     base_total = round(price * quantity, 2)
     taxes = round(base_total * (tax.value / Decimal("100")), 2)
 
     return OrderLine.objects.create(
+        order=order,
         product=product,
         quantity=quantity,
         price=price,
@@ -23,7 +26,6 @@ def create_order_line_for_product(product: Product, quantity: Decimal, tax: Tax)
 
 def create_order(
     customer: Customer,
-    lines: Iterable,
     billing_address: str,
     billing_city: str,
     billing_state: str,
@@ -61,8 +63,4 @@ def create_order(
         shipping_zip=shipping_zip,
     )
 
-    for line in lines:
-        order.lines.add(line)
-
-    order.calculate_total_from_lines()
     return order