public function createTextBlock(Folder $parent, $name, $text)
 {
     if (trim($name) == "") {
         throw new e\CreationErrorException(S_SPAN . c\M::EMPTY_BLOCK_NAME . E_SPAN);
     }
     if (trim($text) == "") {
         throw new e\CreationErrorException(S_SPAN . c\M::EMPTY_TEXT . E_SPAN);
     }
     $asset = AssetTemplate::getTextBlock();
     $asset->textBlock->name = $name;
     $asset->textBlock->parentFolderPath = $parent->getPath();
     $asset->textBlock->siteName = $parent->getSiteName();
     $asset->textBlock->text = $text;
     return $this->createAsset($asset, TextBlock::TYPE, $this->getPath($parent, $name), $parent->getSiteName());
 }