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($this->User->newsletters) || !\is_array($this->User->newsletters))
		{
			$root = array(0);
		}
		else
		{
			$root = $this->User->newsletters;
		}

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

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

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

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

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

				$arrNewsletterp = Contao\StringUtil::deserialize($objUser->newsletterp);

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

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

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