*/ use HasFactory; protected $fillable = [ 'nama' ]; protected $appends = ['berat_total']; protected $hidden = ['created_at', 'updated_at', 'deleted_at']; public function items() { return $this->hasMany(Item::class, 'id_nampan'); } public function getBeratTotalAttribute() { return $this->items() ->join('produks', 'items.id_produk', '=', 'produks.id') ->sum('produks.berat'); } }