public function handle()
    {
        Deprecation::notice('5.0', 'handle() will be removed. Use addToCampaign or Form directly');
        $object = $this->getObject($this->data['ID'], $this->data['ClassName']);

        if (empty($this->data['Campaign'])) {
            return $this->Form($object)->forTemplate();
        } else {
            return $this->addToCampaign($object, $this->data['Campaign']);
        }
    }