    public function clearTags() {
        $this->_tags = array(); // clear tag cache

        return (bool) CActiveRecord::model('Tags')->deleteAllByAttributes(array(
            'type' => get_class($this->getOwner()),
            'itemId' => $this->getOwner()->id)
        );
    }
The product receives input or data, but it does
        not validate or incorrectly validates that the input has the
        properties that are required to process the data safely and
        correctly.