from django.db import migrations, models import django.db.models.deletion class Migration(migrations.Migration): dependencies = [ ('accounting', '0010_voucher_regarding_invoiceline_event_name'), ] operations = [ migrations.AddField( model_name='voucherline', name='party', field=models.ForeignKey( blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='voucher_lines', to='accounting.party', ), ), ]