# Part of Odoo. See LICENSE file for full copyright and licensing details. from odoo import fields, models class AccountJournal(models.Model): _inherit = 'account.journal' invoice_reference_model = fields.Selection(selection_add=[ ('si', 'Slovenian 01 (SI01 25-1235-8403)') ], ondelete={'si': lambda recs: recs.write({'invoice_reference_model': 'odoo'})})