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