public function checkUniquePair($attribute, $params)
 {
     $configparameter = ConfigParameter::findOne(['ID' => $this->ID]);
     if (!isset($configparameter)) {
         $configparameter = ConfigParameter::findOne(['config_ID' => $this->config_ID, 'parameter_ID' => $this->parameter_ID]);
         if (isset($configparameter)) {
             $this->addError('parameter_ID', 'Parameter already exist in this Config-Set');
         }
     }
 }
 /**
  * Deletes an existing Parameter model.
  * If deletion is successful, the browser will be redirected to the 'index' page.
  * @param  integer $id
  * @return mixed
  */
 public function actionDeleteconfigparameter($id)
 {
     $configparameter = ConfigParameter::findOne(['ID' => $id]);
     $configsetid = $configparameter->config_ID;
     $configparameter->delete();
     return $this->redirect(['details', 'id' => $configsetid]);
 }