private object TryFindPrincipal(StateManager stateManager, INavigation navigation, object dependentEntity)
{
if (navigation.PointsToPrincipal)
{
return(_getterSource.GetAccessor(navigation).GetClrValue(dependentEntity));
}
// TODO: Perf
foreach (var principalEntry in stateManager.StateEntries
.Where(e => e.EntityType == navigation.ForeignKey.ReferencedEntityType))
{
if (navigation.IsCollection())
{
if (_collectionAccessorSource.GetAccessor(navigation).Contains(principalEntry.Entity, dependentEntity))
{
return(principalEntry.Entity);
}
}
else if (_getterSource.GetAccessor(navigation).GetClrValue(principalEntry.Entity) == dependentEntity)
{
return(principalEntry.Entity);
}
}
return(null);
}
private void SetInverse(StateEntry entry, INavigation navigation, object entity)
{
var inverse = navigation.TryGetInverse();
if (inverse != null)
{
if (inverse.IsCollection())
{
var collectionAccessor = _collectionAccessorSource.GetAccessor(inverse);
if (!collectionAccessor.Contains(entity, entry.Entity))
{
collectionAccessor.Add(entity, entry.Entity);
}
}
else
{
var oldEntity = _getterSource.GetAccessor(inverse).GetClrValue(entity);
if (oldEntity != null && oldEntity != entry.Entity)
{
Unfixup(navigation, entry.StateManager.GetOrCreateEntry(oldEntity), entry.StateManager.GetOrCreateEntry(entity));
}
_setterSource.GetAccessor(inverse).SetClrValue(entity, entry.Entity);
}
entry.StateManager.GetOrCreateEntry(entity).RelationshipsSnapshot.TakeSnapshot(inverse);
}
}
public void Delegate_getter_is_cached_by_type_and_property_name()
{
var entityType = new Model().AddEntityType(typeof(Customer));
var idProperty = entityType.GetOrAddProperty("Id", typeof(int));
var source = new ClrPropertyGetterSource();
var accessor = source.GetAccessor(typeof(Customer), "Id");
Assert.Same(accessor, source.GetAccessor(typeof(Customer), "Id"));
Assert.Same(accessor, source.GetAccessor(idProperty));
}
public void Delegate_getter_is_cached_by_type_and_property_name()
{
var entityType = new Model().AddEntityType(typeof(Customer));
var idProperty = entityType.GetOrAddProperty("Id", typeof(int));
var source = new ClrPropertyGetterSource();
var accessor = source.GetAccessor(typeof(Customer), "Id");
Assert.Same(accessor, source.GetAccessor(typeof(Customer), "Id"));
Assert.Same(accessor, source.GetAccessor(idProperty));
}
public virtual object ReadValue([NotNull] object entity, [NotNull] IPropertyBase propertyBase)
{
Check.NotNull(entity, "entity");
Check.NotNull(propertyBase, "propertyBase");
return(_getterSource.GetAccessor(propertyBase).GetClrValue(entity));
}
public void Property_is_returned_if_it_implements_IClrPropertyGetter()
{
var getterMock = new Mock<IClrPropertyGetter>();
var propertyMock = getterMock.As<IProperty>();
var source = new ClrPropertyGetterSource();
Assert.Same(getterMock.Object, source.GetAccessor(propertyMock.Object));
}
public void Property_is_returned_if_it_implements_IClrPropertyGetter()
{
var getterMock = new Mock <IClrPropertyGetter>();
var propertyMock = getterMock.As <IProperty>();
var source = new ClrPropertyGetterSource();
Assert.Same(getterMock.Object, source.GetAccessor(propertyMock.Object));
}
private void ConditionallyClearInverse(StateEntry entry, INavigation navigation, object entity)
{
var inverse = navigation.TryGetInverse();
if (inverse != null)
{
if (inverse.IsCollection())
{
_collectionAccessorSource.GetAccessor(inverse).Remove(entity, entry.Entity);
}
else
{
if (ReferenceEquals(_getterSource.GetAccessor(inverse).GetClrValue(entity), entry.Entity))
{
_setterSource.GetAccessor(inverse).SetClrValue(entity, null);
}
}
entry.StateManager.GetOrCreateEntry(entity).RelationshipsSnapshot.TakeSnapshot(inverse);
}
}