Get Latest Related Record for Each Parent (Eloquent `latestOfMany`)

// app/Models/User.php
class User extends Model
{
    public function latestOrder()
    {
        return $this->hasOne(Order::class)->latestOfMany();
    }
}

// app/Models/Order.php
class Order extends Model
{
    protected $guarded = []; // For mass assignment example
    public function user()
    {
        return $this->belongsTo(User::class);
    }
}

// Usage Example
// Create some data for demonstration
$user1 = User::create(['name' => 'Alice']);
$user1->orders()->createMany([
    ['amount' => 100, 'created_at' => now()->subDays(5)],
    ['amount' => 150, 'created_at' => now()->subDays(2)],
]);

$user2 = User::create(['name' => 'Bob']);
$user2->orders()->createMany([
    ['amount' => 200, 'created_at' => now()->subDays(10)],
    ['amount' => 250, 'created_at' => now()->subDays(1)],
]);

// Retrieve users with their latest order
$usersWithLatestOrders = User::with('latestOrder')->get();

foreach ($usersWithLatestOrders as $user) {
    if ($user->latestOrder) {
        echo "User: {$user->name}, Latest Order Amount: {$user->latestOrder->amount}
";
    } else {
        echo "User: {$user->name}, No orders found.
";
    }
}