public bool UpdateRatings(RatingsModel ratings) => (ratings.BookId > 0) ? updateItem(ratings) : false;
public bool AddRatings(RatingsModel ratings) => (ratings.BookId > 0) ? addItem(ratings) : false;
public bool UpdateRatings(RatingsModel ratings) => (ratings.BookId > 0) ? updateItem(ratings) : false;
public bool AddRatings(RatingsModel ratings) => (ratings.BookId > 0) ? addItem(ratings) : false;