private IDictionary <ObjectID, ILoadedObjectData> CorrelateRelatedObjects(
IEnumerable <LoadedObjectDataWithDataSourceData> relatedObjects,
VirtualRelationEndPointDefinition relationEndPointDefinition)
{
var relatedObjectsWithForeignKey = GetForeignKeysForVirtualEndPointDefinition(relatedObjects, relationEndPointDefinition);
var dictionary = new Dictionary <ObjectID, ILoadedObjectData>();
foreach (var tuple in relatedObjectsWithForeignKey.Where(tuple => tuple.Item1 != null))
{
try
{
dictionary.Add(tuple.Item1, tuple.Item2.LoadedObjectData);
}
catch (ArgumentException ex)
{
var message = string.Format(
"Two items in the related object result set point back to the same object. This is not allowed in a 1:1 relation. "
+ "Object 1: '{0}'. Object 2: '{1}'. Foreign key property: '{2}'",
dictionary[tuple.Item1].ObjectID,
tuple.Item2.LoadedObjectData.ObjectID,
relationEndPointDefinition.GetOppositeEndPointDefinition().PropertyName);
throw new InvalidOperationException(message, ex);
}
}
return(dictionary);
}
protected IEnumerable <Tuple <ObjectID, LoadedObjectDataWithDataSourceData> > GetForeignKeysForVirtualEndPointDefinition(
IEnumerable <LoadedObjectDataWithDataSourceData> loadedObjectData,
VirtualRelationEndPointDefinition virtualEndPointDefinition)
{
ArgumentUtility.CheckNotNull("loadedObjectData", loadedObjectData);
ArgumentUtility.CheckNotNull("virtualEndPointDefinition", virtualEndPointDefinition);
var oppositeEndPointDefinition = (RelationEndPointDefinition)virtualEndPointDefinition.GetOppositeEndPointDefinition();
return(from data in loadedObjectData
where !data.IsNull
let dataContainer = CheckRelatedObjectAndGetDataContainer(
data,
virtualEndPointDefinition,
oppositeEndPointDefinition)
let originatingObjectID = (ObjectID)dataContainer.GetValueWithoutEvents(oppositeEndPointDefinition.PropertyDefinition, ValueAccess.Current)
select Tuple.Create(originatingObjectID, data));
}
private DataContainerCollection LoadOppositeDataContainers(
RelationEndPointID relationEndPointID, VirtualRelationEndPointDefinition virtualEndPointDefinition)
{
var oppositeEndPointDefinition = virtualEndPointDefinition.GetOppositeEndPointDefinition();
var oppositeProvider =
_storageProviderManager.GetMandatory(oppositeEndPointDefinition.ClassDefinition.StorageEntityDefinition.StorageProviderDefinition.Name);
var oppositeDataContainers = oppositeProvider.LoadDataContainersByRelatedID(
(RelationEndPointDefinition)oppositeEndPointDefinition,
virtualEndPointDefinition.GetSortExpression(),
relationEndPointID.ObjectID);
var oppositeDataContainerCollection = new DataContainerCollection();
foreach (var oppositeDataContainer in oppositeDataContainers)
{
CheckClassIDForVirtualEndPoint(relationEndPointID, oppositeDataContainer);
oppositeDataContainerCollection.Add(oppositeDataContainer);
}
return(oppositeDataContainerCollection);
}