def cancel(self, issuer):
"""
Cancel the :class:`~invoicing.models.Invoice` with the creation of an
associated :class:`~invoicing.models.CreditNote`
"""
from invoicing.models import CreditNote, CreditNoteRevision
if not self.is_cancelable():
raise NotCancelableInvoice("Invoice is not cancelable.")
credit_note = CreditNote(full_init=False,
tenant=self.tenant,
account_type=self.account_type,
issuer=issuer,
organization=self.organization,
contact=self.contact,
related_to=self,
group=self.group)
cn_data = credit_note.add_revision(revision=CreditNoteRevision(
based_on=self.current_revision))
cn_data.issuer = issuer
cn_data.issue_date = datetime_now()
cn_data.credit_note_emission_date = datetime.date.today()
if self.is_down_payment_invoice():
# XXX should be removed in favor of translatable line items
cn_data.line_items = []
credit_note.save()
self.set_state(Invoice.STATES.CANCELLED)
return credit_note
def cancel(self, issuer):
"""
Cancel the :class:`~invoicing.models.Invoice` with the creation of an
associated :class:`~invoicing.models.CreditNote`
"""
from invoicing.models import CreditNote, CreditNoteRevision
if not self.is_cancelable():
raise NotCancelableInvoice("Invoice is not cancelable.")
credit_note = CreditNote(
full_init=False,
tenant=self.tenant,
account_type=self.account_type,
issuer=issuer,
organization=self.organization,
contact=self.contact,
related_to=self,
group=self.group
)
cn_data = credit_note.add_revision(revision=CreditNoteRevision(based_on=self.current_revision))
cn_data.issuer = issuer
cn_data.issue_date = datetime_now()
cn_data.credit_note_emission_date = datetime.date.today()
for item in cn_data.line_items:
if not isinstance(item.reference, basestring):
item.reference = unicode(item.reference)
item.unit_price = -item.unit_price
credit_note.save()
self.set_state(Invoice.STATES.CANCELLED)
return credit_note
