partner-contact/animal_owner/models/animal.py

# Copyright (C) 2020 Open Source Integrators
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
from odoo import fields, models


class Animal(models.Model):
    _inherit = "animal"

    partner_id = fields.Many2one(
        "res.partner", string="Owner", index=True, track_visibility="onchange"
    )