ctrlpanel/app/Models/TicketComment.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class TicketComment extends Model {
protected $fillable = [
    'ticket_id', 'user_id', 'ticketcomment'
];

    public function ticketcategory(){
    return $this->belongsTo(TicketCategory::class);}

    public function ticket(){
    return $this->belongsTo(Ticket::class);}

    public function user(){
    return $this->belongsTo(User::class);}
}