Очистка кеша при добавлении ресурсов из frontend

$modx->cacheManager->refresh();

<?php
/* @var array $scriptProperties */
/* @var ms2form $ms2form */

if (!$modx->user->isAuthenticated()) {
  return $modx->lexicon('ms2form_err_no_auth');
}

$ms2form = $modx->getService('ms2form', 'ms2form', $modx->getOption('ms2form_core_path', null, $modx->getOption('core_path') . 'components/ms2form/') . 'model/ms2form/', $scriptProperties);
$config = $ms2form->initialize($modx->context->key);

$data = $config;

if (empty($templates)) {
  $templates = 0;
}
if (empty($source)) {
  $source = $modx->getOption('ms2_product_source_default');
}
$ms2_product_thumbnail_size = $modx->getOption('ms2_product_thumbnail_size', $scriptProperties, $modx->getOption('ms2_product_thumbnail_size'));

if (empty($parent)) {
  $data['parent'] = '0';
} else {
  $data['parent'] = $parent;
}
$pid = !empty($_REQUEST['pid']) ? (integer)$_REQUEST['pid'] : 0;

// Update of msProduct
if (!empty($pid)) {
  $tplWrapper = $tplUpdate;
  /* @var msProduct $product */
  if ($product = $modx->getObject('msProduct', array('id' => $pid))) {
    if ($product->get('createdby') != $modx->user->id && !$modx->hasPermission('edit_document')) {
      return $modx->lexicon('ms2form_err_wrong_user');
    }
    $productData = $product->toArray();
    $charset = $modx->getOption('modx_charset');
    $allowedFields = array_map('trim', explode(',', $scriptProperties['allowedFields']));
    $allowedFields = array_unique(array_merge($allowedFields, array('parent', 'pagetitle', 'content')));

    $fields = $product->getAllFieldsNames();
    foreach ($allowedFields as $field) {
      if (in_array($field, $fields)) {
        $value = $productData[$field];
      } else {
        $tvId = (int)trim($field, 'tv');
        $value = $product->getTVValue($tvId);
      }
      if (is_string($value)) {
        $value = html_entity_decode($value, ENT_QUOTES, $charset);
        $value = str_replace(array('[^', '^]', '[', ']'), array('[^', '^]', '{{{{{', '}}}}}'), $value);
        $value = htmlentities($value, ENT_QUOTES, $charset);
      }
      $data[$field] = $value;
    }
    $data['id'] = $product->id;
    $data['published'] = $product->published;
    $data['alias'] = $product->alias;
    $data['context_key'] = $product->context_key;
    $data['tags'] = $scriptProperties['tags'];
    $data['template'] = $scriptProperties['template'];
  } else {
    return $modx->lexicon('ms2form_err_id', array('id' => $pid));
  }
} else {
  $tplWrapper = $tplCreate;
}
// todo-me Get available sections for msProduct create


// Get templates list
if(!$data['template']){
  $templates = explode(',', $data['templates']);
  if (count($templates) > 1) {
    foreach ($templates as $template) {
      $selected = '';
      if ($template = explode('==', $template)) {
        if (!empty($pid)) {
          if ($product->template == $template[0]) {
            $selected = 'selected';
          }
        }
        $data['templates'] .= "<option $selected value=\"$template[0]\">$template[1]</option>";
      } else {
        if (!empty($pid)) {
          if ($product->template == $template) {
            $selected = 'selected';
          }
        }
        $data['templates'] .= "<option $selected value=\"$template\">$template</option>";
      }
    }
  } else {
    if (!empty($pid)) {
      $data['template'] = $product->template;
    } else {
      $data['template'] = $templates[0];
    }
  }
}

// Get files list
if (!empty($allowFiles)) {
  /** @var modMediaSource $source */
  if ($source = $modx->getObject('sources.modMediaSource', $source)) {
    $sourceProperties = $source->getPropertyList();
  }
  $q = $modx->newQuery('msProductFile');
  if (empty($pid)) {
    $q->where(array(
      'product_id' => 0
      ,'parent' => 0
      ,'createdby' => $modx->user->id
    ));
  }else{
    $q->where(array(
      'product_id' => $pid
    , 'parent' => 0
    , 'createdby' => $modx->user->id
    ));
  }
  $q->sortby('createdon', 'ASC');
  $collection = $modx->getIterator('msProductFile', $q);
  $files = '';
  /** @var msProductFile $item */
  foreach ($collection as $item) {
      $item = $item->toArray();
      $item['size'] = round($item['size'] / 1024, 2);
      $item['thumb'] = '/'.$sourceProperties['baseUrl'].$item['path']. $ms2_product_thumbnail_size.'/'. $item['file'];
      $tpl = $item['type'] == 'image'
        ? $tplImage
        : $tplFile;
      $files .= $ms2form->getChunk($tpl, $item);
  }
  $data['files'] = $ms2form->getChunk($tplFiles, array(
    'files' => $files,
  ));
}

//output
$output = $ms2form->getChunk($tplWrapper, $data);

return $output;