PY code

    def js_positions(self):

        vehicle_obj                             =self.env['fleet.vehicle']       

        vehicle_args                            =[]       

        return_positions                        ={}

        vehicle_data                            =vehicle_obj.search(vehicle_args, offset=0, limit=None, order=None)       

        if len(vehicle_data)>0:        

            for vehicle in vehicle_data:

                positions_arg                   =[]               

                positions_data                  =self.search_read(positions_arg, offset=0, limit=1, order='devicetime DESC')       

                if len(positions_data)>0:

                    return_positions[vehicle.id]    =positions_data[0]           

        return return_positions

JS Code

    rpc.query({

        model: 'MYMODEL',

        method: 'js_positions',

        fields: ['deviceid','devicetime'],

        limit:  10,        

    })

    .then(function (result)

    {     

        //console.log("Device  " + result);                   

    });

Odoo v11 Error

File "/usr/lib/python3/dist-packages/odoo/api.py", line 699, in call_kw return call_kw_multi(method, model, args, kwargs)

File "/usr/lib/python3/dist-packages/odoo/api.py", line 686, in call_kw_multi ids, args = args[0], args[1:]

IndexError: list index out of range