Eloquent with

WhereHas site:https://laravel.com/docs/

use Illuminate\Database\Eloquent\Builder;

// Retrieve posts with at least one comment containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'code%');
})->get();

// Retrieve posts with at least ten comments containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'code%');
}, '>=', 10)->get();

Source: laravel.com

Laravel where has

use Illuminate\Database\Eloquent\Builder;

// Retrieve posts with at least one comment containing words like foo%...
$posts = App\Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'foo%');
})->get();

// Retrieve posts with at least ten comments containing words like foo%...
$posts = App\Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'foo%');
}, '>=', 10)->get();

Source: laravel.com

Laravel eloquent with

$books = Book::with(['author', 'publisher'])->get();

Source: laravel.com

Eloquent with

use App\Models\User;

$users = User::with(['posts' => function ($query) {
    $query->where('title', 'like', '%code%');
}])->get();

# Select columns

Post::query()
    ->with(['user' => function($query) {
        $query->select('id','username');
    }])
    ->get();

Source: laravel.com

Laravel eloquent with

$users = User::with('podcasts')->get();

foreach ($users->flatMap->podcasts as $podcast) {
    echo $podcast->subscription->created_at;
}

Source: laravel.com

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