'boolean', 'last_latitude' => 'decimal:7', 'last_longitude' => 'decimal:7', 'last_location_at' => 'datetime', ]; public function user() { return $this->belongsTo(User::class, 'user_id'); } public function contact() { return $this->belongsTo(Contact::class, 'contact_id'); } public function shipments() { return $this->hasMany(Shipment::class, 'driver_id'); } }