/usr/lib/python2.7/dist-packages/trytond/modules/purchase_invoice_line_standalone/invoice.py is in tryton-modules-purchase-invoice-line-standalone 3.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #This file is part of Tryton. The COPYRIGHT file at the top level
#of this repository contains the full copyright notices and license terms.
from trytond.pool import Pool, PoolMeta
__all__ = ['InvoiceLine']
__metaclass__ = PoolMeta
class InvoiceLine:
__name__ = 'account.invoice.line'
@classmethod
def __setup__(cls):
super(InvoiceLine, cls).__setup__()
cls._error_messages.update({
'delete_purchase_invoice_line': ('You can not delete '
'invoice lines that comes from a purchase.'),
})
@classmethod
def delete(cls, lines):
PurchaseLine = Pool().get('purchase.line')
if any(l for l in lines
if isinstance(l.origin, PurchaseLine) and l.type == 'line'):
cls.raise_user_error('delete_purchase_invoice_line')
super(InvoiceLine, cls).delete(lines)
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