public void PersistSalesOrderSnapshot(SalesOrderSnapshot salesOrderSnapshot, SalesOrderSnapshot oldSnapshot
, List <Message> messages, TrackerEntitiesContainer tec)
{
#region Message references - create them and insert to collection
foreach (Message message in messages)
{
MessageReference reference = new MessageReference()
{
Id = Guid.NewGuid(), MessageId = message.Id, SalesOrderId = salesOrderSnapshot.Id
};
salesOrderSnapshot.MessageReferences.Add(reference);
}
#endregion
#region Related Events - delete old events and create ids for new events
if (oldSnapshot != null)
{
while (oldSnapshot.SalesOrderEvents.Count > 0)
{
tec.DeleteObject(oldSnapshot.SalesOrderEvents.Last());
}
}
foreach (SalesOrderEvent newEvent in salesOrderSnapshot.SalesOrderEvents)
{
newEvent.Id = Guid.NewGuid();
}
#endregion
#region Set all objects state before saving
object oldObject = null;
string entitySetName = tec.SalesOrderSnapshots.EntitySet.Name;
tec.TryGetObjectByKey(tec.CreateEntityKey(entitySetName, salesOrderSnapshot), out oldObject);
if (oldObject == null)
{
tec.AddObject(entitySetName, salesOrderSnapshot); //all related objects will be also added
}
else
{
tec.ApplyCurrentValues(entitySetName, salesOrderSnapshot);
//salesOrderSnapshot remains detached. Status of related objects must be set manualy.
oldSnapshot = (SalesOrderSnapshot)oldObject;
while (salesOrderSnapshot.MessageReferences.Count > 0)
{
oldSnapshot.MessageReferences.Add(salesOrderSnapshot.MessageReferences.Last());
}
//tec.AddObject(tec.MessageReferences.EntitySet.Name, messageReference);
while (salesOrderSnapshot.SalesOrderEvents.Count > 0)
{
oldSnapshot.SalesOrderEvents.Add(salesOrderSnapshot.SalesOrderEvents.Last());
}
//tec.AddObject(tec.SalesOrderEvents.EntitySet.Name, soEvent);
}
#endregion
tec.SaveChanges();
}
