Ekstra Field Description

[einste12]

Hello how to ı added ekstra field in boostrap poppover ?

`
$events = [];
$data = Takvim::all();

    if($data->count())
    {
        foreach ($data as $key => $value)
        {
            $events[] = Calendar::event(
                $value->title,
                true,
                new \DateTime($value->start_date),
                new \DateTime($value->end_date.'+1 day'),
                null,
                // Add color
                [
                    'color' => '#000000',
                    'textColor' => '#ffffff',
                    'locale'=>'tr',
                ]
            );


        }
    }
    $calendar = \Calendar::addEvents($events)
        ->setOptions([

        ])
        ->setCallbacks([
            'eventRender'=>'function (event, element) {
        element.attr(\'data-toggle\', "tooltip");
        element.attr(\'data-placement\', "top");
        element.attr(\'description\', event.description);}',
        ]);

`

http://prntscr.com/s9px2f not working.