public function remove()
    {
        $returnValue = (bool) false;

        
        $db = core_kernel_classes_DbWrapper::singleton();
        if (false === $db->exec("DELETE FROM statements WHERE modelid = ?", array($this->getModelId()))){
        	$returnValue = false;
        }
        else{
        	if (false === $db->exec("DELETE FROM models WHERE modelid = ?", array($this->getModelId()))){
        		$returnValue = false;
        	}
        	else{
        		$returnValue = true;
        	}
        }
        
        

        return (bool) $returnValue;
    }