public void OnSave(ChangeTracker tracker)
{
var entries = tracker.Entries <IExternalIdentifierBehaviour>();
foreach (var entry in entries)
{
var entity = entry.Entity;
if (entry.State == EntityState.Added && !ExternalId.TryParse(entity.ExternalId, out _))
{
entity.ExternalId = ExternalId.Create().ToString();
}
}
}
public void CreatesNewExternalIdentifierForNewEntities()
{
OnSaveHandler.Handler = ct =>
{
var entry = ct.Entries <IExternalIdentifierBehaviour>().First();
Assert.IsNotNull(entry.Entity.ExternalId, $"Expecting {entry.Entity.ExternalId} to be not null");
Assert.IsTrue(ExternalId.TryParse(entry.Entity.ExternalId, out var _), $"Expecting {nameof(entry.Entity.ExternalId)} to be a valid ExternalId");
};
var post = new Post {
Body = "ExternalId post"
};
Context.Posts.Add(post);
Context.SaveChanges();
Assert.IsTrue(OnSaveHandler.IsCalled, "OnSaveHandler has not been called");
}
