Mind you, most of this does absolutely nothing or could be rewritten in two lines.

GroupsRepository.php

<?php
	/**
	 * Explodes an XPath into an Array / only 2 Levels
	 * @param array $xpath
	 * @param boolean $utf8Encode
	 * @return array
	 */
	private function titleExploder($xpath, $utf8Encode = TRUE) {
		$exTitle = explode('/', $xpath);

		if ($utf8Encode) {
			foreach ($exTitle as $k => &$v) {
				$v = utf8_encode($v);
			}
		}

		if (count($exTitle) > 1) {
				// voodoo magic
			return array(array_shift($exTitle)) + array(0, implode(' / ', $exTitle));
		}
		return $exTitle;
	}