def create_invoice_for_subscription(self, subscription):
if subscription.is_trial:
# Don't create invoices for trial subscriptions
logger.info("[BILLING] Skipping invoicing for Subscription "
"%s because it's a trial." % subscription.pk)
return
if subscription.auto_generate_credits:
for product_rate in subscription.plan_version.product_rates.all():
CreditLine.add_credit(
product_rate.monthly_fee,
subscription=subscription,
product_type=product_rate.product.product_type,
permit_inactive=True,
)
if subscription.date_start > self.date_start:
invoice_start = subscription.date_start
else:
invoice_start = self.date_start
if (subscription.date_end is not None
and subscription.date_end <= self.date_end):
# Since the Subscription is actually terminated on date_end
# have the invoice period be until the day before date_end.
invoice_end = subscription.date_end - datetime.timedelta(days=1)
else:
invoice_end = self.date_end
invoice = Invoice(
subscription=subscription,
date_start=invoice_start,
date_end=invoice_end,
is_hidden=subscription.do_not_invoice,
)
invoice.save()
if subscription.subscriptionadjustment_set.count() == 0:
# record that the subscription was created
SubscriptionAdjustment.record_adjustment(
subscription,
method=SubscriptionAdjustmentMethod.TASK,
invoice=invoice,
)
self.generate_line_items(invoice, subscription)
invoice.calculate_credit_adjustments()
invoice.update_balance()
invoice.save()
total_balance = sum(invoice.balance for invoice in Invoice.objects.filter(
is_hidden=False,
subscription__subscriber__domain=invoice.get_domain(),
))
if total_balance > SMALL_INVOICE_THRESHOLD:
days_until_due = DEFAULT_DAYS_UNTIL_DUE
if subscription.date_delay_invoicing is not None:
td = subscription.date_delay_invoicing - self.date_end
days_until_due = max(days_until_due, td.days)
invoice.date_due = self.date_end + datetime.timedelta(days_until_due)
invoice.save()
record = BillingRecord.generate_record(invoice)
try:
if subscription.auto_generate_credits and not invoice.balance:
record.skipped_email = True
record.save()
else:
record.send_email()
except InvoiceEmailThrottledError as e:
if not self.logged_throttle_error:
logger.error("[BILLING] %s" % e)
self.logged_throttle_error = True
return invoice
