In a previous blog post I documented an undocumented breaking change in the DomainService wizard. It turns out that it is really a bug.
When you create a DomainService using the July .NET RIA Services you would get an update that looks like this:
public void UpdateMyEntity(MyEntity currentMyEntity)
{
this.ObjectContext.AttachAsModified(currentMyEntity, this.ChangeSet.GetOriginal(currentMyEntity));
}
The new version gives you a version that looks like this:
public void UpdateMyEntity(MyEntity currentMyEntity)
{
if ((currentMyEntity.EntityState == EntityState.Detached))
{
this.ObjectContext.AttachAsModified(currentMyEntity, this.ChangeSet.GetOriginal(currentMyEntity));
}
}
It turns out that the new version is a mistake, not a change that was undocumented in the breaking changes document, and it is causing major problems for people. The recommendation is that all Updates should be modified to remove the If check so that the resulting method looks like the original .NET RIA Services version.