stagfe2/app/Models/AccountInvite.php

<?php

namespace App\Models;

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

class AccountInvite extends Model
{

    protected $table = 'account_invite';

    public function getRouteKeyName()
    {
        return 'access_token';
    }

    public function client() {
        return $this->hasOne(Client::class, 'id', 'for_client_id');
    }

    public function displayName($_flat = true)
    {
        $result = '';
        if($_flat) {
            $result = $this->first_name . ' ' . $this->last_name;
        }
        else {
            $result = $this->last_name . ', ' . $this->first_name;
        }
        return $result;
    }
}