TwbBundle\Form\View\Helper\TwbBundleFormElement::renderAddOn PHP Метод

    protected function renderAddOn($aAddOnOptions)
    {
        if (empty($aAddOnOptions)) {
            throw new InvalidArgumentException('Addon options are empty');
        }
        if ($aAddOnOptions instanceof ElementInterface) {
            $aAddOnOptions = array('element' => $aAddOnOptions);
        } elseif (is_scalar($aAddOnOptions)) {
            $aAddOnOptions = array('text' => $aAddOnOptions);
        } elseif (!is_array($aAddOnOptions)) {
            throw new InvalidArgumentException(sprintf('Addon options expects an array or a scalar value, "%s" given', is_object($aAddOnOptions) ? get_class($aAddOnOptions) : gettype($aAddOnOptions)));
        }
        $sMarkup = '';
        $sAddonTagName = 'span';
        $sAddonClass = '';
        if (!empty($aAddOnOptions['text'])) {
            if (!is_scalar($aAddOnOptions['text'])) {
                throw new InvalidArgumentException(sprintf('"text" option expects a scalar value, "%s" given', is_object($aAddOnOptions['text']) ? get_class($aAddOnOptions['text']) : gettype($aAddOnOptions['text'])));
            } elseif ($oTranslator = $this->getTranslator()) {
                $sMarkup .= $oTranslator->translate($aAddOnOptions['text'], $this->getTranslatorTextDomain());
            } else {
                $sMarkup .= $aAddOnOptions['text'];
            }
            $sAddonClass .= ' input-group-addon';
        } elseif (!empty($aAddOnOptions['element'])) {
            if (is_array($aAddOnOptions['element']) || $aAddOnOptions['element'] instanceof Traversable && !$aAddOnOptions['element'] instanceof ElementInterface) {
                $oFactory = new Factory();
                $aAddOnOptions['element'] = $oFactory->create($aAddOnOptions['element']);
            } elseif (!$aAddOnOptions['element'] instanceof ElementInterface) {
                throw new LogicException(sprintf('"element" option expects an instanceof Zend\\Form\\ElementInterface, "%s" given', is_object($aAddOnOptions['element']) ? get_class($aAddOnOptions['element']) : gettype($aAddOnOptions['element'])));
            }
            $aAddOnOptions['element']->setOptions(array_merge($aAddOnOptions['element']->getOptions(), array('disable-twb' => true)));
            $sMarkup .= $this->render($aAddOnOptions['element']);
            //Element is a button, so add-on container must be a "div"
            if ($aAddOnOptions['element'] instanceof Button) {
                $sAddonClass .= ' input-group-btn';
                $sAddonTagName = 'div';
            } else {
                $sAddonClass .= ' input-group-addon';
            }
        }
        return sprintf(self::$addonFormat, $sAddonTagName, trim($sAddonClass), $sMarkup, $sAddonTagName);
    }