Quintiq file version 2.0
#parent: #root
Method UnloadDatasetAllowed (
  structured[LibOpt_SnapshotReplannableCopyDataset] snapshots
) as Boolean id:Method_LibOpt_GlobalState_UnloadDatasetAllowed
{
  #keys: '[141860.2.581338533]'
  Body:
  [*
    // Precondition method for the UnloadDataset method
    feedbackobj := FeedbackObject::LocalFeedback();
                   
    hasLoadedDataset := exists( snapshots,
                                Elements,
                                snapshot,
                                snapshot.IsDatasetLoaded()
                                and not snapshot.IsDatasetDeleted()
                                );
                   
    hasCreatedAnyDataset := exists( snapshots,
                                    Elements,
                                    snapshot,
                                    snapshot.HasCreatedDataset()
                                    );                                
    
    if( not feedbackobj.CheckHard( hasCreatedAnyDataset ) )
    {
      feedbackobj.AddHard( Translations::LibOpt_SnapshotReplannable_Precondition_DatasetBeingCreated() );
    }
    else if( not feedbackobj.CheckHard( hasLoadedDataset ) )
    {
      feedbackobj.AddHard( Translations::LibOpt_SnapshotReplannable_Precondition_UnloadDataset() );
    }
    
    return feedbackobj.IsAllowed();
  *]
}