/**
  * Helps to cache method results
  * @see fActiveRecord::__call()
  */
 public function __call($methodName, $params)
 {
     // Call method only once
     if (strrpos($methodName, 'Once') !== false) {
         $methodName = str_replace('Once', '', $methodName);
         if (!isset($this->methodCallCache[$methodName])) {
             $this->methodCallCache[$methodName] = method_exists($this, $methodName) ? $this->{$methodName}($params) : parent::__call($methodName, $params);
         }
         return $this->methodCallCache[$methodName];
     }
     return parent::__call($methodName, $params);
 }