Magento load widget by title

Data.php

private function getWidgetByTitleFilter($filter)
    {
        $collection = Mage::getModel('widget/widget_instance')->getCollection();
        $collection->addStoreFilter(Mage::app()->getStore()->getId(), false)
            ->addFieldToFilter('title', $filter)->load();
        
        $widget = $collection->getFirstItem(); 

        if($widget && is_numeric($widget->getId())) {
            $widgetBlock = Mage::app()->getLayout()
                ->createBlock(
                    $widget->getType(),
                    $widget->getTitle(),
                    $widget->getWidgetParameters()
                );
            return $widgetBlock;
        }
        return false;
    }