sis_stock_transfer/models/res_partner.py

# -*- encoding: utf-8 -*-

from openerp import models, fields, api, _

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

    appointment_count = fields.Integer(compute='_appointment_count', string='Consultas')

    @api.one
    def _appointment_count(self):
        appointment = self.env['sis.stock.transfer'].search([('partner_id', '=', self.id),('type','=','appointment')])
        self.appointment_count = len(appointment)