/// <summary>
/// 操作已经完成，事务未提交时触发：同步删除下游单据数据
/// </summary>
/// <param name="e"></param>
public override void EndOperationTransaction(EndOperationTransactionArgs e)
{
// 本单主键为字符串类型，略过
if (this.BusinessInfo.GetForm().PkFieldType == EnumPkFieldType.STRING)
{
return;
}
// 把单据数据包，展开为按实体Key为标识存储的数据字典
ExtendedDataEntitySet dataEntitySet = new ExtendedDataEntitySet();
dataEntitySet.Parse(e.DataEntitys, this.BusinessInfo);
// 对各单据体进行循环，分别扫描下游单据，逐单删除
foreach (var entity in this.BusinessInfo.Entrys)
{
// 判断此实体，是否需要扫描下游单据
if (this.IgnoreEntity(entity))
{
continue;
}
// 取实体数据集合
ExtendedDataEntity[] rows = dataEntitySet.FindByEntityKey(entity.Key);
if (rows == null)
{
// 容错
continue;
}
// 取实体的业务流程数据
HashSet <long> entityIds = new HashSet <long>();
foreach (var row in rows)
{
long entityId = Convert.ToInt64(row.DataEntity[0]);
entityIds.Add(entityId);
}
BusinessFlowInstanceCollection bfInstances = this.LoadBFInstance(entity.Key, entityIds);
if (bfInstances == null || bfInstances.Count == 0)
{
// 无关联的业务流程实例，略过
continue;
}
// 从业务流程实例中，分析出本单据体的下游单据内码：按目标单据体分好组
Dictionary <string, HashSet <long> > dctTargetEntityIds = this.GetTargetEntityIds(
entity, entityIds, bfInstances);
// 对各种下游单据进行循环，逐个删除
foreach (var targetBill in dctTargetEntityIds)
{
IOperationResult deleteResult = this.DeleteTargetBill(targetBill.Key, targetBill.Value);
if (CheckOpResult(deleteResult) == false)
{
// 删除失败，无需继续，退出
return;
}
}
}
}
/// <summary>
/// 分析业务流程实例，输出全部下游单据
/// </summary>
/// <param name="entity">上游单据体</param>
/// <param name="entityIds">上游单据体内码</param>
/// <param name="bfInstances">相关的业务流程实例</param>
/// <returns>Dictioanry(下游单据表格编码, 下游单据体内码集合)</returns>
private Dictionary <string, HashSet <long> > GetTargetEntityIds(
Entity entity, HashSet <long> entityIds,
BusinessFlowInstanceCollection bfInstances)
{
Dictionary <string, HashSet <long> > dctTargetEntityIds = new Dictionary <string, HashSet <long> >();
IBusinessFlowService bfService = ServiceHelper.GetService <IBusinessFlowService>();
TableDefine srcTableDefine = bfService.LoadTableDefine(
this.Context, this.BusinessInfo.GetForm().Id, entity.Key);
// 逐个实例查找本单的下游单据体内码
foreach (var instance in bfInstances)
{
// 首先找到业务流程实例中，本单所在的节点
List <RouteTreeNode> srcNodes = instance.SerarchTargetFormNodes(srcTableDefine.TableNumber);
foreach (RouteTreeNode srcNode in srcNodes)
{
if (entityIds.Contains(srcNode.Id.EId))
{
// 找到了本单所在的节点，按类别输出其下游节点：
foreach (RouteTreeNode targetNode in srcNode.ChildNodes)
{
if (dctTargetEntityIds.Keys.Contains(targetNode.Id.Tbl) == false)
{
dctTargetEntityIds.Add(targetNode.Id.Tbl, new HashSet <long>());
}
if (dctTargetEntityIds[targetNode.Id.Tbl].Contains(targetNode.Id.EId) == false)
{
dctTargetEntityIds[targetNode.Id.Tbl].Add(targetNode.Id.EId);
}
}
}
}
}
return(dctTargetEntityIds);
}
