# -*- coding: utf-8 -*- # Part of Odoo. See LICENSE file for full copyright and licensing details. from odoo import fields, models class ResPartner(models.Model): _inherit = 'res.partner' issue_count = fields.Integer(compute='_compute_issue_count', string='# Issues') def _compute_issue_count(self): Issue = self.env['project.issue'] for partner in self: partner.issue_count = Issue.search_count([('partner_id', 'child_of', partner.commercial_partner_id.id)])