public function attributeLabels()
 {
     return array_merge(parent::attributeLabels(), array('tipo_codigo' => Yii::t('app', 'Asignación'), 'entidad_tipo' => Yii::t('app', 'Asignado a:'), 'entidad_id' => Yii::t('app', 'Nombre'), 'visitado' => Yii::t('app', 'Visitado'), 'fecha_creacion' => Yii::t('app', 'Creado')));
 }
 /**
  * Returns a peer instance associated with this om.
  *
  * Since Peer classes are not to have any instance attributes, this method returns the
  * same instance for all member of this class. The method could therefore
  * be static, but this would prevent one from overriding the behavior.
  *
  * @return     NotificacionPeer
  */
 public function getPeer()
 {
     if (self::$peer === null) {
         self::$peer = new NotificacionPeer();
     }
     return self::$peer;
 }