Nette Framework hack for getting controls and labels one by one

example.latte

<?php

Kdyby\Forms\RadioListExtension::register();

?>

{* @param Nette\Forms\Controls\RadioList $radio *}
{foreach $radio->items as $key => $value}

    {$radio->getOneControl($key)} {* Single control, instanceof HTML *}
    {$radio->getOneLabel($key)} {* Single label, instanceof HTML *}

{/foreach}

RadioListExtension.php

<?php

namespace Kdyby\Forms;

use Nette;
use Nette\Forms\Controls\RadioList;
use Nette\Utils\Html;
use Nette\Utils\Arrays;



class RadioListExtension extends Nette\Object
{


	/**
	 * @throws Nette\StaticClassException
	 */
	final public function __construct()
	{
		throw new Nette\StaticClassException;
	}



	/**
	 * Registers hack methods
	 */
	public static function register()
	{
		RadioList::extensionMethod('getOneControl', callback(__CLASS__, 'getOneControl'));
		RadioList::extensionMethod('getOneLabel', callback(__CLASS__, 'getOneLabel'));
	}



	/**
	 * @param RadioList $radio
	 * @param mixed $key
	 * @return Html
	 */
	public static function getOneControl(RadioList $radio, $key)
	{
		if (!isset($radio->items[$key])) {
			return NULL;
		}

		$control = self::callBaseControl($radio, 'getControl');
		$index = Arrays::searchKey($radio->items, $key);
		$id = $control->id;
		$value = $radio->getValue() === NULL ? NULL : (string) $radio->getValue();

		if ($index > 0) {
			$control->data('nette-rules', NULL);
		}

		$control->id = $id . '-' . $index;
		$control->checked = (string) $key === $value;
		$control->value = $key;

		return $control;
	}



	/**
	 * @param RadioList $radio
	 * @param mixed $key
	 * @return Html
	 */
	public static function getOneLabel(RadioList $radio, $key)
	{
		if (!isset($radio->items[$key])) {
			return NULL;
		}

		$control = self::callBaseControl($radio, 'getControl');
		$index = Arrays::searchKey($radio->items, $key);
		$id = $control->id;
		$val = $radio->items[$key];

		$label = Html::el('label', array('for' => $id . '-' . $index));
		if ($val instanceof Html) {
			$label->setHtml($val);
		} else {
			$label->setText($radio->translate((string) $val));
		}

		return $label;
	}



	/**
	 * @hack ugly one!
	 * @param object $object
	 * @param string $method
	 * @return mixed
	 */
	private static function callBaseControl($object, $method, $args = array())
	{
		return Nette\Reflection\Method::from('Nette\Forms\Controls\BaseControl', $method)->invokeArgs($object, $args);
	}

}