/// <summary>
/// Generates the advisory.
/// </summary>
/// <param name="svc">The service that holds the data to generate the advisory for.</param>
/// <param name="changeSet">The subset of changes to generate the advisory for.</param>
/// <returns>The generated advisory.</returns>
public IAdvisory GenerateAdvisory(IChangeTrackingService svc, IChangeSet changeSet)
{
var result = new List <IAdvisedAction>();
var distinct = this.visitor.Visit(changeSet);
foreach (var kvp in distinct)
{
ProposedActions proposedAction = kvp.Value.GetAdvisedAction(kvp.Key);
EntityTrackingStates state = svc.GetEntityState(kvp.Key);
bool isTransient = (state & EntityTrackingStates.IsTransient) == EntityTrackingStates.IsTransient;
switch (proposedAction)
{
case ProposedActions.Create | ProposedActions.Update:
proposedAction = isTransient ? ProposedActions.Create : ProposedActions.Update;
break;
case ProposedActions.Delete | ProposedActions.Dispose:
proposedAction = isTransient ? ProposedActions.Dispose : ProposedActions.Delete;
break;
default:
throw new NotSupportedException();
}
var advisedAction = this.OnCreateAdvisedAction(kvp.Key, proposedAction);
result.Add(advisedAction);
}
IEnumerable transientEntities = svc.GetEntities(EntityTrackingStates.IsTransient, true);
foreach (Object te in transientEntities)
{
if (result.Any(a => a.Target == te))
{
/*
* An entity is created as Transient+Persistable, then is added to
* a MementoEntityCollection that tracks a change as "item-added" thus
* the advisory adds that entity (that is not AutoRemove) as something that
* must be created. so if we arrive here and we already have the transient
* entity in the advisory we skip it.
*/
continue;
}
var advisedAction = this.OnCreateAdvisedAction(te, ProposedActions.Create);
result.Add(advisedAction);
}
return(new Advisory(result));
}
/// <summary>
/// Generates the advisory.
/// </summary>
/// <param name="svc">The service that holds the data to generate the advisory for.</param>
/// <param name="changeSet">The subset of changes to generate the advisory for.</param>
/// <returns>The generated advisory.</returns>
public IAdvisory GenerateAdvisory( IChangeTrackingService svc, IChangeSet changeSet )
{
var result = new List<IAdvisedAction>();
var distinct = this.visitor.Visit( changeSet );
foreach( var kvp in distinct )
{
ProposedActions proposedAction = kvp.Value.GetAdvisedAction( kvp.Key );
EntityTrackingStates state = svc.GetEntityState( kvp.Key );
Boolean isTransient = ( state & EntityTrackingStates.IsTransient ) == EntityTrackingStates.IsTransient;
switch( proposedAction )
{
case ProposedActions.Create | ProposedActions.Update:
proposedAction = isTransient ? ProposedActions.Create : ProposedActions.Update;
break;
case ProposedActions.Delete | ProposedActions.Dispose:
proposedAction = isTransient ? ProposedActions.Dispose : ProposedActions.Delete;
break;
default:
throw new NotSupportedException();
}
var advisedAction = this.OnCreateAdvisedAction( kvp.Key, proposedAction );
result.Add( advisedAction );
}
IEnumerable transientEntities = svc.GetEntities( EntityTrackingStates.IsTransient, true );
foreach( Object te in transientEntities )
{
if ( result.Any( a => a.Target == te ) )
{
/*
* An entity is created as Transient+Persistable, then is added to
* a MementoEntityCollection that tracks a change as "item-added" thus
* the advisory adds that entity (that is not AutoRemove) as something that
* must be created. so if we arrive here and we already have the transient
* entity in the advisory we skip it.
*/
continue;
}
var advisedAction = this.OnCreateAdvisedAction( te, ProposedActions.Create );
result.Add( advisedAction );
}
return new Advisory( result );
}