where(function ($q) use ($keyword) { $q->where('name', 'like', "%$keyword%") ->orWhere('unit', 'like', "%$keyword%"); }); } public function unitPrices() { return $this->belongsToMany(UnitPrice::class, 'unit_price_assets')->withPivot('qty'); } public function purchaseRequestMachineManuals() { return $this->hasMany(PurchaseRequestMachineManual::class); } }