from odoo import models, fields, api class ResPartner(models.Model): _inherit = 'res.partner' woo_customer_ids = fields.One2many('woo.customer', 'partner_id', string='WooCommerce Links') is_woo_customer = fields.Boolean(compute='_compute_is_woo_customer', string='Is WC Customer', store=True) @api.depends('woo_customer_ids') def _compute_is_woo_customer(self): for partner in self: partner.is_woo_customer = bool(partner.woo_customer_ids)