public int AddAuthor(Author author)
{
AuthorValidation validation = new AuthorValidation(author);
validation.FirstNameIsValid = validation.AuthorFirstNameValidation();
validation.LastNameIsValid = validation.AuthorLastNameValidation();
if (!validation.exceptionList.Any())
{
return(_authorDao.AddAuthor(author));
}
else
{
StringBuilder sb = new StringBuilder();
foreach (var item in validation.exceptionList)
{
sb.Append(item + Environment.NewLine);
}
throw new AuthorValidationException(sb.ToString());
}
}