/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual InternalEntityEntry TryGetEntry(object entity)
{
if (_entityReferenceMap.TryGetValue(entity, out InternalEntityEntry entry))
{
return(entry);
}
var type = entity.GetType();
var found = false;
foreach (var keyValue in _dietReferenceMap)
{
// ReSharper disable once CheckForReferenceEqualityInstead.2
if (Equals(keyValue.Key.ClrType, type) &&
keyValue.Value.TryGetValue(entity, out entry))
{
if (found)
{
throw new InvalidOperationException(CoreStrings.AmbiguousDelegatedIdentityEntity(
entity.GetType().ShortDisplayName(),
"." + nameof(EntityEntry.Reference) + "()." + nameof(ReferenceEntry.TargetEntry)));
}
found = true;
}
}
return(entry);
}
public void Can_get_owned_entity_entry()
{
using (var context = new FixupContext())
{
var principal = new ParentPN {
Id = 77
};
var dependent = new ChildPN {
Name = "1"
};
principal.Child1 = dependent;
principal.Child2 = dependent;
Assert.Equal(CoreStrings.UntrackedDelegatedIdentityEntity(
typeof(ChildPN).ShortDisplayName(),
"." + nameof(EntityEntry.Reference) + "()." + nameof(ReferenceEntry.TargetEntry)),
Assert.Throws <InvalidOperationException>(() => context.Entry(dependent)).Message);
var dependentEntry1 = context.Entry(principal).Reference(p => p.Child1).TargetEntry;
Assert.Same(dependentEntry1.GetInfrastructure(), context.Entry(dependent).GetInfrastructure());
var dependentEntry2 = context.Entry(principal).Reference(p => p.Child2).TargetEntry;
Assert.Equal(CoreStrings.AmbiguousDelegatedIdentityEntity(
typeof(ChildPN).ShortDisplayName(),
"." + nameof(EntityEntry.Reference) + "()." + nameof(ReferenceEntry.TargetEntry)),
Assert.Throws <InvalidOperationException>(() => context.Entry(dependent)).Message);
}
}
