/// <summary>
        /// Delete Author
        /// </summary>
        /// <param name="request">author request.</param>
        /// <returns>Author message.</returns>
        public AuthorMessage DeleteAuthor(AuthorRequest request)
        {
            AuthorMessage message = new AuthorMessage();

            try
            {
                _serviceAuthor.DeleteAuthor(request.ToPivot());
                message.OperationSuccess = true;
            }
            catch (Exception e)
            {
                message.ErrorType    = ErrorType.TechnicalError;
                message.ErrorMessage = e.Message;
            }
            return(message);
        }