public function adjustPermissions($insertId)
	{
		// The oncreate_callback passes $insertId as second argument
		if (\func_num_args() == 4)
		{
			$insertId = func_get_arg(1);
		}

		if ($this->User->isAdmin)
		{
			return;
		}

		// Set root IDs
		if (empty($this->User->calendarfeeds) || !\is_array($this->User->calendarfeeds))
		{
			$root = array(0);
		}
		else
		{
			$root = $this->User->calendarfeeds;
		}

		// The calendar feed is enabled already
		if (\in_array($insertId, $root))
		{
			return;
		}

		/** @var Symfony\Component\HttpFoundation\Session\Attribute\AttributeBagInterface $objSessionBag */
		$objSessionBag = Contao\System::getContainer()->get('session')->getBag('contao_backend');

		$arrNew = $objSessionBag->get('new_records');

		if (\is_array($arrNew['tl_calendar_feed']) && \in_array($insertId, $arrNew['tl_calendar_feed']))
		{
			// Add the permissions on group level
			if ($this->User->inherit != 'custom')
			{
				$objGroup = $this->Database->execute("SELECT id, calendarfeeds, calendarfeedp FROM tl_user_group WHERE id IN(" . implode(',', array_map('\intval', $this->User->groups)) . ")");

				while ($objGroup->next())
				{
					$arrCalendarfeedp = Contao\StringUtil::deserialize($objGroup->calendarfeedp);

					if (\is_array($arrCalendarfeedp) && \in_array('create', $arrCalendarfeedp))
					{
						$arrCalendarfeeds = Contao\StringUtil::deserialize($objGroup->calendarfeeds, true);
						$arrCalendarfeeds[] = $insertId;

						$this->Database->prepare("UPDATE tl_user_group SET calendarfeeds=? WHERE id=?")
									   ->execute(serialize($arrCalendarfeeds), $objGroup->id);
					}
				}
			}

			// Add the permissions on user level
			if ($this->User->inherit != 'group')
			{
				$objUser = $this->Database->prepare("SELECT calendarfeeds, calendarfeedp FROM tl_user WHERE id=?")
										   ->limit(1)
										   ->execute($this->User->id);

				$arrCalendarfeedp = Contao\StringUtil::deserialize($objUser->calendarfeedp);

				if (\is_array($arrCalendarfeedp) && \in_array('create', $arrCalendarfeedp))
				{
					$arrCalendarfeeds = Contao\StringUtil::deserialize($objUser->calendarfeeds, true);
					$arrCalendarfeeds[] = $insertId;

					$this->Database->prepare("UPDATE tl_user SET calendarfeeds=? WHERE id=?")
								   ->execute(serialize($arrCalendarfeeds), $this->User->id);
				}
			}

			// Add the new element to the user object
			$root[] = $insertId;
			$this->User->calendarfeeds = $root;
		}
	}