public void EFComprehendsMixedStatesWhenAddingUntrackedGraph()
{
var ninja = EF6Model.RichModels.Ninja.CreateIndependent("julie", true);
ninja.SpecifyClan(new EF6Model.RichModels.Clan {
Id = 1, ClanName = "Clan from database"
});
using (var context = new NinjaContext()) {
context.Ninjas.Add(ninja);
var entries = context.ChangeTracker.Entries();
OutputState(entries);
context.FixState();
OutputState(entries);
Assert.IsTrue(entries.Any(e => e.State == EntityState.Unchanged));
}
}
public void EFComprehendsMixedStatesWhenAddingUntrackedGraph()
{
var ninja = EF6Model.RichModels.Ninja.CreateIndependent("julie", true);
ninja.SpecifyClan(new EF6Model.RichModels.Clan {
Id = 1, ClanName = "Clan from database"
});
using (var context = new NinjaContext()) {
context.Ninjas.Add(ninja);
var entries = context.ChangeTracker.Entries();
entries.ToList().ForEach(e => Debug.WriteLine($"Before:{e.Entity.ToString()}:{e.State}"));
context.FixState();
entries.ToList().ForEach(e => Debug.WriteLine($"After:{e.Entity.ToString()}:{e.State}"));
Assert.IsTrue(entries.Any(e => e.State == EntityState.Unchanged));
}
}
public void MixedStatesWithExistingParentAndVaryingChildrenisUnderstood()
{
var ninja = EF6Model.RichModels.Ninja.CreateIndependent("julie", true);
var pNinja = new PrivateObject(ninja);
pNinja.SetProperty("Id", 1);
var originalOwnerId = 99;
var equip = EF6Model.RichModels.NinjaEquipment.Create(originalOwnerId, "arrow");
ninja.TransferEquipmentFromAnotherNinja(equip);
using (var context = new NinjaContext()) {
context.Ninjas.Attach(ninja);
var entries = context.ChangeTracker.Entries();
OutputState(entries); context.FixState();
entries.ToList().ForEach(e => Debug.WriteLine($"After:{e.Entity.ToString()}:{e.State}"));
Assert.IsTrue(entries.Any(e => e.State == EntityState.Modified));
}
}