Atomcms-edit/app/Models/RadioContestEntry.php

<?php

declare(strict_types=1);

namespace App\Models;

use App\Models\Concerns\BelongsToUser;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class RadioContestEntry extends Model
{
    use BelongsToUser;

    #[\Override]
    protected $table = 'radio_contest_entries';

    #[\Override]
    protected $guarded = ['id', 'created_at', 'updated_at', 'user_id', 'contest_id'];

    /** @var array<string, string> */
    #[\Override]
    protected $casts = [
        'submitted_at' => 'datetime',
        'is_winner' => 'boolean',
    ];

    public function contest(): BelongsTo
    {
        return $this->belongsTo(RadioContest::class);
    }

    public function markAsWinner(): void
    {
        $this->update(['is_winner' => true]);
    }
}