77 lines
3.1 KiB
Python
77 lines
3.1 KiB
Python
import datetime
|
|
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from orchestra.apps.bills.models import Invoice, Fee, ProForma
|
|
|
|
|
|
class BillsBackend(object):
|
|
def create_bills(self, account, lines, **options):
|
|
bill = None
|
|
bills = []
|
|
create_new = options.get('new_open', False)
|
|
proforma = options.get('proforma', False)
|
|
for line in lines:
|
|
service = line.order.service
|
|
# Create bill if needed
|
|
if bill is None or service.is_fee:
|
|
if proforma:
|
|
if create_new:
|
|
bill = ProForma.objects.create(account=account)
|
|
else:
|
|
bill = ProForma.objects.filter(account=account, is_open=True).last()
|
|
if not bill:
|
|
bill = ProForma.objects.create(account=account, is_open=True)
|
|
elif service.is_fee:
|
|
bill = Fee.objects.create(account=account)
|
|
else:
|
|
if create_new:
|
|
bill = Invoice.objects.create(account=account)
|
|
else:
|
|
bill = Invoice.objects.filter(account=account, is_open=True).last()
|
|
if not bill:
|
|
bill = Invoice.objects.create(account=account, is_open=True)
|
|
bills.append(bill)
|
|
# Create bill line
|
|
billine = bill.lines.create(
|
|
rate=service.nominal_price,
|
|
quantity=line.metric*line.size,
|
|
subtotal=line.subtotal,
|
|
tax=service.tax,
|
|
description=self.get_line_description(line),
|
|
|
|
order=line.order,
|
|
order_billed_on=line.order.old_billed_on,
|
|
order_billed_until=line.order.old_billed_until
|
|
)
|
|
self.create_sublines(billine, line.discounts)
|
|
return bills
|
|
|
|
def format_period(self, ini, end):
|
|
ini = ini.strftime("%b, %Y")
|
|
end = (end-datetime.timedelta(seconds=1)).strftime("%b, %Y")
|
|
if ini == end:
|
|
return ini
|
|
return _("{ini} to {end}").format(ini=ini, end=end)
|
|
|
|
def get_line_description(self, line):
|
|
service = line.order.service
|
|
if service.is_fee:
|
|
return self.format_period(line.ini, line.end)
|
|
description = line.order.description
|
|
if service.billing_period != service.NEVER:
|
|
description += " %s" % self.format_period(line.ini, line.end)
|
|
if service.metric and service.billing_period != service.NEVER and service.pricing_period == service.NEVER:
|
|
metric = format(line.metric, '.2f').rstrip('0').rstrip('.')
|
|
size = format(line.size, '.2f').rstrip('0').rstrip('.')
|
|
description += " (%s*%s)" % (metric, size)
|
|
return description
|
|
|
|
def create_sublines(self, line, discounts):
|
|
for discount in discounts:
|
|
line.sublines.create(
|
|
description=_("Discount per %s") % discount.type.lower(),
|
|
total=discount.total,
|
|
type=discount.type,
|
|
)
|