<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_privacy
 *
 * @copyright   (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Privacy\Administrator\Helper;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\Helper\ContentHelper;
use Joomla\Component\Privacy\Administrator\Export\Domain;

/**
 * Privacy component helper.
 *
 * @since  3.9.0
 */
class PrivacyHelper extends ContentHelper
{
	/**
	 * Render the data request as a XML document.
	 *
	 * @param   Domain[]  $exportData  The data to be exported.
	 *
	 * @return  string
	 *
	 * @since   3.9.0
	 */
	public static function renderDataAsXml(array $exportData)
	{
		$export = new \SimpleXMLElement('<?xml version="1.0" encoding="utf-8"?><data-export />');

		foreach ($exportData as $domain)
		{
			$xmlDomain = $export->addChild('domain');
			$xmlDomain->addAttribute('name', $domain->name);
			$xmlDomain->addAttribute('description', $domain->description);

			foreach ($domain->getItems() as $item)
			{
				$xmlItem = $xmlDomain->addChild('item');

				if ($item->id)
				{
					$xmlItem->addAttribute('id', $item->id);
				}

				foreach ($item->getFields() as $field)
				{
					$xmlItem->{$field->name} = $field->value;
				}
			}
		}

		$dom = new \DOMDocument;
		$dom->loadXML($export->asXML());
		$dom->formatOutput = true;

		return $dom->saveXML();
	}

	/**
	 * Gets the privacyconsent system plugin extension id.
	 *
	 * @return  integer  The privacyconsent system plugin extension id.
	 *
	 * @since   3.9.2
	 */
	public static function getPrivacyConsentPluginId()
	{
		$db    = Factory::getDbo();
		$query = $db->getQuery(true)
			->select($db->quoteName('extension_id'))
			->from($db->quoteName('#__extensions'))
			->where($db->quoteName('folder') . ' = ' . $db->quote('system'))
			->where($db->quoteName('element') . ' = ' . $db->quote('privacyconsent'));

		$db->setQuery($query);

		return (int) $db->loadResult();
	}
}

• [F] PrivacyHelper.php
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