def on_update(self, instance: models.Product, new_validated_data: dict):
new_product_category = new_validated_data.get("category")
if new_product_category:
instance.increment_category()
new_product_subcategories = new_validated_data.get("subcategories")
if new_product_subcategories:
new_product_subcategory_names = [
product_subcategory["name"]
for product_subcategory in new_product_subcategories
]
instance.increment_subcategories(new_product_subcategory_names)
def on_create(self, instance: models.Product):
instance.increment_category()
instance.increment_subcategories()
