public void AddAuthor(author newAuthor)
{
using (var dbModel = new LMSDataModelEntities())
{
dbModel.authors.AddObject(newAuthor);
dbModel.ObjectStateManager.ChangeObjectState(newAuthor, System.Data.EntityState.Added);
var saveCount = dbModel.SaveChanges();
if (saveCount < 1)
{
throw new Exception("Fail to insert Author " + newAuthor.FirstName +" " +newAuthor.LastName + " into DB");
}
}
}
private void Fixupauthor(author previousValue)
{
if (previousValue != null && previousValue.bookauthors.Contains(this))
{
previousValue.bookauthors.Remove(this);
}
if (author != null)
{
if (!author.bookauthors.Contains(this))
{
author.bookauthors.Add(this);
}
if (AuthorId != author.Id)
{
AuthorId = author.Id;
}
}
}
