from odoo import api, fields, models class PosConfig(models.Model): _inherit = "pos.config" is_spanish = fields.Boolean(string="Company located in Spain", compute="_compute_is_spanish") l10n_es_simplified_invoice_journal_id = fields.Many2one( comodel_name='account.journal', domain=[('type', '=', 'sale')], check_company=True, ) simplified_partner_id = fields.Many2one( comodel_name="res.partner", string="Simplified invoice partner", compute="_compute_simplified_partner_id", ) @api.depends("company_id") def _compute_is_spanish(self): for pos in self: pos.is_spanish = pos.company_id.country_code == "ES" and pos.l10n_es_simplified_invoice_journal_id def _compute_simplified_partner_id(self): for config in self: config.simplified_partner_id = self.env.ref("l10n_es.partner_simplified").id def get_limited_partners_loading(self): # this function normally returns 100 partners, but we have to make sure that # the simplified partner is also loaded res = super().get_limited_partners_loading() if (self.simplified_partner_id.id,) not in res: res.append((self.simplified_partner_id.id,)) return res