from odoo import _, api, fields, models class ProductTemplate(models.Model): _inherit = 'product.template' service_tracking = fields.Selection(selection_add=[ ('event_booth', 'Event Booth'), ], ondelete={'event_booth': 'set default'}) def _prepare_service_tracking_tooltip(self): if self.service_tracking == 'event_booth': return _("Mark the selected Booth as Unavailable.") return super()._prepare_service_tracking_tooltip() @api.onchange('service_tracking') def _onchange_type_event_booth(self): if self.service_tracking == 'event_booth': self.invoice_policy = 'order' def _service_tracking_blacklist(self): return super()._service_tracking_blacklist() + ['event_booth']