def payment_refund_supported(self, payment: OrderPayment) -> bool:
if not all(
payment.info_data.get(key)
for key in ("payer", "iban", "bic")):
return False
try:
IBANValidator()(self.norm(payment.info_data['iban']))
BICValidator()(self.norm(payment.info_data['bic']))
except ValidationError:
return False
else:
return True
def build_sepa_xml(refund_export: RefundExport, account_holder, iban, bic):
if refund_export.currency != "EUR":
raise ValueError(
"Cannot create SEPA export for currency other than EUR.")
config = {
"name": account_holder,
"IBAN": iban,
"BIC": bic,
"batch": True,
"currency": refund_export.currency,
}
sepa = SepaTransfer(config, clean=True)
for row in refund_export.rows_data:
payment = {
"name":
row['payer'],
"IBAN":
row["iban"],
"amount":
int(Decimal(row['amount']) * 100), # in euro-cents
"execution_date":
datetime.date.today(),
"description":
f"{_('Refund')} {refund_export.entity_slug} {row['id']} {row.get('comment') or ''}"
.strip()[:140],
}
if row.get('bic'):
try:
BICValidator()(row['bic'])
except ValidationError:
pass
else:
payment['BIC'] = row['bic']
sepa.add_payment(payment)
data = sepa.export(validate=True)
filename = _get_filename(refund_export) + ".xml"
return filename, 'application/xml', io.BytesIO(data)
def clean(self):
"""Clean and validate the form data."""
data = super().clean()
# When `bank account` is chosen as refund type, three additional fields must be validated:
# Bank account owner, IBAN and BIC.
if data.get("refund_type") == "bank_account":
if not data.get("bank_account_owner"):
self.add_error("bank_account_owner", _("This field is required."))
if data.get("bank_account_iban"):
iban_validator = IBANValidator()
try:
iban_validator(data.get("bank_account_iban"))
except ValidationError:
self.add_error("bank_account_iban", _("A valid IBAN is required."))
else:
self.add_error("bank_account_iban", _("This field is required."))
if data.get("bank_account_bic"):
bic_validator = BICValidator()
try:
bic_validator(data.get("bank_account_bic"))
except ValidationError:
self.add_error("bank_account_bic", _("A valid BIC is required."))
else:
self.add_error("bank_account_bic", _("This field is required."))
# Receipt validation
if not any([data.get("receipt_{}_picture".format(i)) for i in range(10)]):
self.add_error("receipt_0_picture", _("At least one receipt is required."))
for i in range(10):
if data.get(f"receipt_{i}_picture") and not data.get(f"receipt_{i}_amount"):
self.add_error(f"receipt_{i}_picture",
_("The amount for this receipt is required."))
elif data.get(f"receipt_{i}_amount") and not data.get(f"receipt_{i}_picture"):
self.add_error(f"receipt_{i}_amount", _("The receipt for this amount is required."))
