Use GroupBy and Having with Eloquent ORM in Laravel Framework

Create new database named laravel_db. In this database, create 2 tables named category and product as below:

  1. Download and install the latest version of Composer from https://getcomposer.org/download/

  2. Open Windows Terminal in Visual Studio Code install Laravel Installer with command as below:

    composer global require laravel/installer
  3. Create new folder named LearnLaravelWithRealApps. Use Visual Studio Code open to LearnLaravelWithRealApps foler. In this folder, create new project named LearnLaravelWithRealApps with command as below:

    laravel new LearnLaravelWithRealApps

  4. Run LearnLaravelWithRealApps project with command as below:

    php artisan serve
  5. Open LearnLaravelWithRealApps project with url as below:

    http://localhost:8000

Open .env file in root folder. Add values as below connect to database:

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=laravel_db
DB_USERNAME=root
DB_PASSWORD=

Open Windows Terminal in Visual Studio Code and clear config cache with command as below:

php artisan config:clear

In app/Models folder, create new models as below:

Create new PHP file named Category.php in app/Models folder as below:

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Category extends Model
{
    protected $primarykey = 'id';
    protected $table = 'category';
    public $timestamps = false;

    public function products()
    {
        return $this->hasMany(Product::class);
    } 
}

Create new PHP file named Product.php in app/Models folder as below:

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Product extends Model
{
    public $primarykey = 'id';
    protected $table = 'product';
    public $timestamps = false;

    public function category()
    {
        return $this->belongsTo(Category::class, 'category_id');
    }
}

Create new folder named Repositories. In Repositories folder, create new folder named Product. Create new PHP file named ProductRepository.php in app/Repositories/Product folder as below:

<?php

namespace App\Repositories\Category;

interface CategoryRepository
{
    public function groupByHaving($sumQuantity);
}

Create new PHP file named CategoryRepositoryImpl.php in app/Repositories/Category folder as below:

<?php

namespace App\Repositories\Product;

use App\Models\Product;
use Illuminate\Support\Facades\DB;

class ProductRepositoryImpl implements ProductRepository
{
    public function groupByHaving($sumQuantity)
    {
        return Product::select("category_id", DB::raw("count(*) as countProduct"), DB::raw("sum(quantity) as sumQuantity"), DB::raw("min(price) as minPrice"), DB::raw("max(price) as maxPrice"), DB::raw("avg(price) as avgPrice"))->groupBy('category_id')->havingRaw('sumQuantity > '.$sumQuantity)->get();
    }
}

Open AppServiceProvider.php file in app/Providers folder and add declare new repository to register method as below:

<?php

namespace App\Providers;

use App\Repositories\Category\CategoryRepository;
use App\Repositories\Category\CategoryRepositoryImpl;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    public function register()
    {
        $this->app->bind(CategoryRepository::class, CategoryRepositoryImpl::class);
    }

    public function boot()
    {
    }
}

Create new PHP file named DemoController.php in app/Http/Controllers folder as below:

<?php

namespace App\Http\Controllers;

use App\Repositories\Category\CategoryRepository;

class DemoController extends Controller
{
    protected $categoryRepository;

    public function __construct(CategoryRepository $categoryRepository)
    {
        $this->categoryRepository = $categoryRepository;
    }

    public function index()
    {
        $data = array(
            'groups' => $this->productRepository->groupByHaving(17)
        );
        return view('demo/index')->with($data);
    }
}

Create new folder named demo in resources/views folder. In this folder, create new Blade file named index.blade.php as below:

<html>

        <head>
        <title>Laravel</title>
    </head>

    <body>

        <h3>Index</h3>
        <table border="1">
            <tr>
                <th>Category Id</th>
                <th>Count Product</th>
                <th>Sum Quantity</th>
                <th>Min Price</th>
                <th>Max Price</th>
                <th>Avg Price</th>
            </tr>
            @foreach($groups as $group)
            <tr>
                <td>{{$group->category_id}}</td>
                <td>{{$group->countProduct}}</td>
                <td>{{$group->sumQuantity}}</td>
                <td>{{$group->minPrice}}</td>
                <td>{{$group->maxPrice}}</td>
                <td>{{$group->avgPrice}}</td>
            </tr>
            @endforeach
        </table>

    </body>

</html>

Open web.php file in routes folder, add new routes as below:

<?php
    
use Illuminate\Support\Facades\Route;

use App\Http\Controllers\DemoController;

Route::get('/', [DemoController::class, 'index']);
Route::get('/demo', [DemoController::class, 'index']);
Route::get('/demo/index', [DemoController::class, 'index']);

Access index action in Demo controller with urls as below:

  • http://localhost:8000
  • http://localhost:8000/demo
  • http://localhost:8000/demo/index

Output