Override TwbBundle\Form\View\Helper\TwbBundleFormElement

TwbBundleFormElement.php

<?php
namespace Test\Form\View\Helper;
class TestTwbBundleFormElement extends \TwbBundle\Form\View\Helper\TwbBundleFormElement
{

    /**
     * Render an element
     * @param \Zend\Form\ElementInterface $oElement
     * @return string
     */
    public function render(\Zend\Form\ElementInterface $oElement)
    {
        //Add form-controll class
        $sElementType = $oElement->getAttribute('type');

        if (!in_array($sElementType, array('file', 'checkbox', 'radio', 'submit', 'multi_checkbox', 'static', 'button'))) {
            if ($sElementClass = $oElement->getAttribute('class')) {
                if (!preg_match('/(\s|^)form-control(\s|$)/', $sElementClass)) $oElement->setAttribute('class', trim($sElementClass . ' form-control'));
            } else $oElement->setAttribute('class', 'form-control');
        }
        
        switch(true){
            case '\TwbBundle\Form\Element\StaticElement':
                $sMarkup = $this->getView()->formStatic()->render($oElement);
                break;
            case '\Test\Form\Element\MyElement':
                $sMarkup = $this->getView()->myElement()->render($oElement);
                break;
            default :
              $sMarkup = parent::render($oElement);
        }

        //Addon prepend
        if ($aAddOnPrepend = $oElement->getOption('add-on-prepend')) $sMarkup = $this->renderAddOn($aAddOnPrepend) . $sMarkup;

        //Addon append
        if ($aAddOnAppend = $oElement->getOption('add-on-append')) $sMarkup .= $this->renderAddOn($aAddOnAppend);

        if ($aAddOnAppend || $aAddOnPrepend) {
            $sSpecialClass = '';
            //Input size
            if ($sElementClass = $oElement->getAttribute('class')) {
                if (preg_match('/(\s|^)input-lg(\s|$)/', $sElementClass)) $sSpecialClass .= ' input-group-lg';
                elseif (preg_match('/(\s|^)input-sm(\s|$)/', $sElementClass)) $sSpecialClass .= ' input-group-sm';
            }
            return sprintf(
                self::$inputGroupFormat,
                trim($sSpecialClass),
                $sMarkup
            );
        }
        return $sMarkup;
    }
}