whatsapp_web_groups/whatsapp_web_mail/models/res_partner.py

from odoo import models, fields

class PartnerWhatsappNotification(models.Model):
    _name = 'partner.whatsapp.notification'
    _description = 'Preferencias de notificación WhatsApp por modelo'

    partner_id = fields.Many2one('res.partner', required=True, ondelete='cascade')
    model_id = fields.Many2one('ir.model', required=True, ondelete='cascade', domain="[('whatsapp_notifications_enabled','=',True)]")
    active = fields.Boolean(string="Activo", default=True)

    _sql_constraints = [
        ('partner_model_unique', 'unique(partner_id, model_id)', 'La preferencia ya existe para este contacto y modelo')
    ]

class ResPartner(models.Model):
    _inherit = 'res.partner'

    whatsapp_notification_ids = fields.One2many('partner.whatsapp.notification', 'partner_id', string="Notificaciones WhatsApp")