Dynamic Filtering with Eloquent Local Scopes

// app/Models/Product.php
namespace App\Models;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Product extends Model
{
    use HasFactory;

    // Define a local scope for category filtering
    public function scopeCategory(Builder $query, string $categorySlug): void
    {
        $query->whereHas('category', function ($q) use ($categorySlug) {
            $q->where('slug', $categorySlug);
        });
    }

    // Define a local scope for price range filtering
    public function scopePriceRange(Builder $query, float $minPrice, float $maxPrice): void
    {
        $query->whereBetween('price', [$minPrice, $maxPrice]);
    }

    // Define a local scope for search term
    public function scopeSearch(Builder $query, string $searchTerm): void
    {
        $query->where('name', 'like', '%' . $searchTerm . '%')
              ->orWhere('description', 'like', '%' . $searchTerm . '%');
    }
}

// app/Http/Controllers/ProductController.php
namespace App\Http\Controllers;

use App\Models\Product;
use Illuminate\Http\Request;

class ProductController extends Controller
{
    public function index(Request $request)
    {
        $products = Product::query();

        if ($request->has('category')) {
            $products->category($request->input('category'));
        }

        if ($request->has(['min_price', 'max_price'])) {
            $products->priceRange($request->input('min_price'), $request->input('max_price'));
        }

        if ($request->has('search')) {
            $products->search($request->input('search'));
        }

        // Add ordering, pagination, etc.
        $products = $products->orderBy('created_at', 'desc')->paginate(10);

        return view('products.index', compact('products'));
    }
}