iao_team/app/Models/SponsorContract.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class SponsorContract extends Model
{
    use HasFactory;

    protected $fillable = [
        'sponsor_id',
        'from_date',
        'to_date',
        'subscription_date',
        'amount',
        'file'
    ];
}