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Does more select_related and bulk_create calls

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This commit is contained in:
Christopher Neugebauer 2016-04-28 19:58:09 +10:00
parent fd5cf50fab
commit 4fb569d935
2 changed files with 20 additions and 3 deletions
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1
registrasion/controllers/cart.py
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@ -358,6 +358,7 @@ class CartController(object):
errors.append(ve)
items = commerce.ProductItem.objects.filter(cart=cart)
items = items.select_related("product", "product__category")
product_quantities = list((i.product, i.quantity) for i in items)
try:

22
registrasion/controllers/invoice.py
View file

@ -99,6 +99,10 @@ class InvoiceController(ForId, object):
)
product_items = commerce.ProductItem.objects.filter(cart=cart)
product_items = product_items.select_related(
"product",
"product__category",
)
if len(product_items) == 0:
raise ValidationError("Your cart is empty.")
@ -106,29 +110,41 @@ class InvoiceController(ForId, object):
product_items = product_items.order_by(
"product__category__order", "product__order"
)
discount_items = commerce.DiscountItem.objects.filter(cart=cart)
discount_items = discount_items.select_related(
"discount",
"product",
"product__category",
)
line_items = []
invoice_value = Decimal()
for item in product_items:
product = item.product
line_item = commerce.LineItem.objects.create(
line_item = commerce.LineItem(
invoice=invoice,
description="%s - %s" % (product.category.name, product.name),
quantity=item.quantity,
price=product.price,
product=product,
)
line_items.append(line_item)
invoice_value += line_item.quantity * line_item.price
for item in discount_items:
line_item = commerce.LineItem.objects.create(
line_item = commerce.LineItem(
invoice=invoice,
description=item.discount.description,
quantity=item.quantity,
price=cls.resolve_discount_value(item) * -1,
product=item.product,
)
line_items.append(line_item)
invoice_value += line_item.quantity * line_item.price
commerce.LineItem.objects.bulk_create(line_items)
invoice.value = invoice_value
invoice.save()