MetaModels\Attribute\Base::getFilterUrlValue PHP Method

    public function getFilterUrlValue($varValue)
    {
        // We are parsing as text here as this was the way before this method was implemented. See #216.
        $arrResult = $this->parseValue(array($this->getColName() => $varValue), 'text');
        return urlencode($arrResult['text']);
    }