/// <summary>
/// ctor takes an IHasId. Kacks if it isn't.
/// </summary>
public StoredObjectId(IHasId iHasId)
{
Condition.Requires(iHasId).IsNotNull();
//copy the id/type over
this._objectId = iHasId.Id;
this._objectType = iHasId.GetType();
}
/// <summary>
/// returns a search filter that finds other objects that have the same id but not the same type
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public static LogicOfTo <IHasId, bool> GetFindSameIdDiffTypeSearchFilter(IHasId obj)
{
LogicOfTo <IHasId, bool> filter = LogicOfTo <IHasId, bool> .New((item) =>
{
bool hasSameId = item.Id.Equals(obj.Id);
bool isSameType = item.GetType().Equals(obj.GetType());
return(hasSameId && (!isSameType));
});
return(filter);
}
/// <summary>
/// returns a search filter that finds other objects that have the same id but not the same type
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public static LogicOfTo<IHasId,bool> GetFindSameIdDiffTypeSearchFilter(IHasId obj)
{
LogicOfTo<IHasId, bool> filter = LogicOfTo<IHasId, bool>.New((item) =>
{
bool hasSameId = item.Id.Equals(obj.Id);
bool isSameType = item.GetType().Equals(obj.GetType());
return hasSameId && (!isSameType);
});
return filter;
}
private void ScanGraph(IHasId entity, HashSet <object> toAdd, HashSet <object> other)
{
if (!toAdd.Contains(entity) && !other.Contains(entity))
{
(entity.Id == 0 ? toAdd : other).Add(entity);
ObjectContext objContext = ((IObjectContextAdapter)_context).ObjectContext;
Type entityClrType = entity.GetType();
EntityType entityType = objContext.MetadataWorkspace.GetItems <EntityType>(DataSpace.CSpace).Single(t => t.Name == entityClrType.Name);
foreach (NavigationProperty prop in entityType.NavigationProperties)
{
string propertyName = prop.Name;
Type propertyType = entity.GetType().GetProperty(propertyName).PropertyType;
bool isCollection = typeof(IEnumerable).IsAssignableFrom(propertyType);
if (isCollection)
{
IEnumerable collection = (IEnumerable)_context.Entry(entity).Collection(propertyName).CurrentValue;
if (collection != null)
{
foreach (var item in collection)
{
if (item != null)
{
ScanGraph((IHasId)item, toAdd, other);
}
}
}
}
else
{
IHasId referenceEntity = (IHasId)_context.Entry(entity).Reference(propertyName).CurrentValue;
if (referenceEntity != null)
{
ScanGraph(referenceEntity, toAdd, other);
}
}
}
}
}