nk20/apps/treasury/signals.py

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# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later
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from note.models import NoteSpecial
from treasury.models import SpecialTransactionProxy, RemittanceType
def save_special_transaction(instance, created, **kwargs):
"""
When a special transaction is created, we create its linked proxy
"""
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if created and isinstance(instance.source, NoteSpecial) \
and RemittanceType.objects.filter(note=instance.source).exists():
SpecialTransactionProxy.objects.create(transaction=instance, remittance=None).save()