public IEnumerable <EntityWorkflowStageChange> GetStageChanges(EntityWorkflow workflow, Entity entity, IEnumerable <WorkflowStageChangeData> dataList)
{
if (HistoryConfiguration == null || !GetEntityStageId(entity, null, out _))
{
yield break;
}
EntitySet historySet = entity.Connection.GetEntitySet(HistoryConfiguration.EntitySetGuid)?.CreateEntitySet();
if (historySet != null)
{
EntityLoadParameters loadParameters = new EntityLoadParameters(historySet);
if (HistoryConfiguration.ResponsibleLinkGuid != Guid.Empty)
{
loadParameters.AddLink(HistoryConfiguration.ResponsibleLinkGuid);
}
loadParameters.Filter = new EntitySetFilter(historySet.GetInfo());
loadParameters.Filter.And(HistoryConfiguration.OwnerLinkGuid, "=", entity.Guid);
if (HistoryConfiguration.EntityTypeGuid != Guid.Empty)
{
loadParameters.Filter.And(SystemPropertyItem.Type, "=", HistoryConfiguration.EntityTypeGuid);
}
IEntityCollection <Entity> historyItems = historySet.GetEntities(loadParameters);
EntityCollection <LinkEntity> responsibleLinks = HistoryConfiguration.ResponsibleLinkGuid != Guid.Empty ?
historyItems.GetLinks(HistoryConfiguration.ResponsibleLinkGuid) : null;
foreach (Entity historyItem in historyItems)
{
EntityWorkflowStage stage = workflow.GetStage(historyItem[HistoryConfiguration.StagePropertyGuid]);
Guid userGuid = responsibleLinks == null ?
historyItem.CreatedBy : (responsibleLinks.FindOne <Entity>(historyItem.Guid)?.Guid ?? Guid.Empty);
DateTime changeTime = HistoryConfiguration.DateTimePropertyGuid == Guid.Empty ?
historyItem.Created.GetValueOrDefault() : (DateTime)historyItem[HistoryConfiguration.DateTimePropertyGuid];
string comment = HistoryConfiguration.CommentPropertyGuid == Guid.Empty ?
string.Empty : (historyItem[HistoryConfiguration.CommentPropertyGuid]?.ToString() ?? string.Empty);
yield return(new EntityWorkflowStageChange(workflow, stage, null, userGuid, changeTime, historyItem.Name, comment));
}
}
}