/// <summary>
 /// Return notifications for a specified user and category
 /// </summary>
 /// <param name="user"></param>
 /// <param name="category"></param>
 /// <returns></returns>
 public IList <CategoryNotification> GetByUserAndCategory(MembershipUser user, Category category)
 {
     return(_categoryNotificationRepository.GetByUserAndCategory(user, category));
 }
 /// <summary>
 /// Return notifications for a specified user and category
 /// </summary>
 /// <param name="user"></param>
 /// <param name="category"></param>
 /// <param name="addTracking"></param>
 /// <returns></returns>
 public IList <CategoryNotification> GetByUserAndCategory(MembershipUser user, Category category, bool addTracking = false)
 {
     return(_categoryNotificationRepository.GetByUserAndCategory(user, category, addTracking));
 }