source: app/Models/OfferComment.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasOne;

class OfferComment extends Model
{
    use HasFactory;

    protected $table = 'offer_comments';

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'content',
        'author_id',
        'offer_id',
    ];

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

    public function author(): BelongsTo
    {
        return $this->belongsTo(User::class, 'author_id', 'id');
    }
}