/**
  * Get the static instance.
  *
  * @static
  * @return MetaPalettes
  */
 public static function getInstance()
 {
     if (self::$objInstance == null) {
         self::$objInstance = new TableMetaModelFilterSetting();
     }
     return self::$objInstance;
 }
 /**
  * backend list display of fe-filter
  * @param array
  * @param string
  * @param object
  * @param string
  * @param string
  * @return string
  */
 public function infoCallback($arrRow, $strLabel, $objDC, $imageAttribute, $strImage)
 {
     $objDatabase = Database::getInstance();
     $this->objMetaModel = TableMetaModelFilterSetting::getInstance()->getMetaModel($objDC);
     $objAttributes = $objDatabase->prepare("SELECT textcombine_attributes FROM tl_metamodel_filtersetting Where id = ?")->limit(1)->execute($arrRow['id']);
     $arrAttributes = deserialize($objAttributes->textcombine_attributes);
     $strAttrName = '';
     if ($objAttributes->numRows > 0) {
         foreach ($arrAttributes as $attribute) {
             $objAttribute = $this->objMetaModel->getAttributeById($attribute);
             if ($objAttribute) {
                 $arrAttributeNames[] = $objAttribute->getName();
             } else {
                 $arrAttributeNames[] = $attribute;
             }
         }
         $strAttrName = implode(', ', $arrAttributeNames);
     }
     if (!empty($arrRow['comment'])) {
         $arrRow['comment'] = sprintf($GLOBALS['TL_LANG']['tl_metamodel_filtersetting']['typedesc']['_comment_'], $arrRow['comment']);
     }
     $strReturn = sprintf($GLOBALS['TL_LANG']['tl_metamodel_filtersetting']['typedesc']['fefilter'], '<a href="' . $this->addToUrl('act=edit&amp;id=' . $arrRow['id']) . '">' . $strImage . '</a>', $strLabel, $arrRow['comment'], $strAttrName, $arrRow['urlparam'] ? $arrRow['urlparam'] : 'textsearch_' . $arrRow['id']);
     return $strReturn;
 }