I have this code onchange

@api.onchange('the_geom')
    def _onchange_cor(self):
        if self.the_geom != False:
            self.env.cr.execute('SELECT the_geom from geolocalizacion_plot')
            self.cor2=self.env.cr.fetchone()[0]
            self.cor=self.id

but self.id returns <openerp.models.NewId object at 0x7f904b586e10>

how to get the id of self (the current record)