nemmo\attachments\components\AttachmentsTable::init PHP Method

    public function init()
    {
        parent::init();
        if (empty($this->model)) {
            throw new InvalidConfigException("Property {model} cannot be blank");
        }
        $hasFileBehavior = false;
        foreach ($this->model->getBehaviors() as $behavior) {
            if (is_a($behavior, FileBehavior::className())) {
                $hasFileBehavior = true;
            }
        }
        if (!$hasFileBehavior) {
            throw new InvalidConfigException("The behavior {FileBehavior} has not been attached to the model.");
        }
    }