Atomcms-edit/app/Models/RadioGiveawayParticipant.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 RadioGiveawayParticipant extends Model
{
    use BelongsToUser;

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

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

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

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

    public function hasJoined(User $user): bool
    {
        return $this->where('giveaway_id', $this->giveaway_id)
            ->where('user_id', $user->id)
            ->exists();
    }
}