#mongodb: use #aggregate and match with not_in condition

db.user.aggregate(
    {
        $geoNear: {
            near: [
                long_var,
        lat_var
            ],
            distanceField: 'dist',
            distanceMultiplier: 6371000,
            spherical: true,
            minDistance: 0,
            maxDistance: maxDistance_var
        }
    },
    {
        $match : {
            user_id: { $nin: [228822] }
        }
    },
    {
        $limit : 10
    },
    {
        $skip : 0
    }
)