code: private function adjustDatabaseTables(): ?RedirectResponse
      {
          $this->container->get('contao.install_tool')->handleRunOnce();
  
          $installer = $this->container->get('contao.installer');
  
          $this->context['sql_form'] = $installer->getCommands();
  
          $request = $this->container->get('request_stack')->getCurrentRequest();
  
          if (null === $request) {
              throw new \RuntimeException('The request stack did not contain a request');
          }
  
          if ('tl_database_update' !== $request->request->get('FORM_SUBMIT')) {
              return null;
          }
  
          $sql = $request->request->get('sql');
  
          if (!empty($sql) && \is_array($sql)) {
              foreach ($sql as $hash) {
                  $installer->execCommand($hash);
              }
          }
  
          return $this->getRedirectResponse();
      }
docs: Renders a form to adjust the database tables.
  
  @throws \RuntimeException