public void RemoveRelation(IRelationById item, AbstractScopedCache repositoryScopedCache)
{
var sessionIdAsString = GetSessionId().ToString("n");
using (DisposableTimer.TraceDuration <NhSessionHelper>("In RemoveRelation for session " + sessionIdAsString, "End RemoveRelation for session " + sessionIdAsString))
{
var relationType = GetOrCreateNodeRelationType(item.Type.RelationName, repositoryScopedCache);
// Nh should handle this for us but got an error with mappings atm in SqlCe (APN 09/11/11)
// Clear session cache to make sure it loads all of the tags in order to delete them all
NhSession.Flush();
// Clear the repository cache of this relation in case one has been added and then removed in the same unit of work
var cacheKey = GenerateCacheKeyForRelation(item, relationType);
repositoryScopedCache.InvalidateItems(cacheKey);
var sourceIdValue = (Guid)item.SourceId.Value;
var destinationIdValue = (Guid)item.DestinationId.Value;
var existingRelation = GetDbRelation(relationType.Alias, sourceIdValue, destinationIdValue).ToArray();
if (existingRelation.Any())
{
existingRelation.ForEach(x => NhSession.Delete(x));
}
}
}
public void MapAndMerge <T>(Revision <T> entity, MappingEngineCollection mappers) where T : class, IVersionableEntity
{
HiveId hiveId = entity.MetaData != null ? entity.MetaData.Id : HiveId.Empty;
HiveId entityId = entity.Item != null ? entity.Item.Id : HiveId.Empty;
using (DisposableTimer.TraceDuration <NhSessionHelper>("Start MapAndMerge for revision " + hiveId + " entity " + entityId, "End MapAndMerge"))
using (NhProfilerLogging.Start(NhSession, "MapAndMerge<T> (Revision<T>)",
new OdbcParameter("entity", entity)))
{
var rdbmsEntity = mappers.MapToIntent <IReferenceByGuid>(entity);
// Track ID generation on the Rdbms object so that it can be pinged to the AbstractEntity upon Save/Update commit
rdbmsEntity = NhSession.Merge(rdbmsEntity) as IReferenceByGuid;
// 16th Jan 12 (APN) NH is not flushing if the above merged entity is queried before the transaction is committed, despite
// the flushmode being Auto. So, explicit call to Flush here pending a bugfix/ better solution
NhSession.Flush();
//InnerDataContext.NhibernateSession.SaveOrUpdate(rdbmsEntity);
mappers.Map(rdbmsEntity, entity, rdbmsEntity.GetType(), entity.GetType());
}
}