public function getItemsPerPageList()
	{
		if (empty($this->items_per_page_list)) {
			$this->setItemsPerPageList([10, 20, 50], true);
		}

		$list = array_flip($this->items_per_page_list);

		foreach ($list as $key => $value) {
			$list[$key] = $key;
		}

		if (array_key_exists('all', $list)) {
			$list['all'] = $this->getTranslator()->translate('ublaboo_datagrid.all');
		}

		return $list;
	}