单据自动转换并审核的方法示例

需求要点：在单据A的界面点击“自动转换”，则自动产生审核态的单据B；若单据B不满足审核条件，则维持“提交”态；若单据B不满足保存校验，则维持“暂存”态；若转换失败，给出界面提示。

实现思路：
1.通过转换规则来定义单据A到单据B的转换关系，便于扩展，也便于使用已有的插件和服务；
2.定义一个空操作“自动转换”，扩展AbstractOperationServicePlugIn，重写EndOperationTransaction方法，方便处理事务；
3.依次调用单据转换服务、暂存服务、保存服务、提交服务和审核服务，以保证当前服务失败时能维持前一服务的状态;
4.根据上述服务调用的结果构造“自动转换”的操作结果；
5.若需求变更，只能生成审核态的单据B，否则不予生成，就要调用删除服务将所有审核不通过的单据删除，再构造操作结果；也可以直接抛出异常throw new KDBusinessException("", string.Join("\n", innerResult.ValidationErrors.Select(o => o.Message)))。

代码示例：

    public override void EndOperationTransaction(BOS.Core.DynamicForm.PlugIn.Args.EndOperationTransactionArgs e)
    {
    base.EndOperationTransaction(e);
    ////////////////////////////// 转换 //////////////////////////////
    ConvertRuleElement ruleElement = AppServiceContext.ConvertService.GetConvertRules(this.Context, "srcFormId", "destFormId").Where(o => o.IsDefault == true).FirstOrDefault();
    ListSelectedRowCollection rows = new ListSelectedRowCollection();
    int i = 0;
    foreach (var srcData in e.DataEntitys)
    {
    ListSelectedRow row = new ListSelectedRow(srcData.GetDynamicObjectItemValue<string>("Id"), string.Empty, i++,"srcFormId");
    rows.Add(row);
    }
    OperateOption option = OperateOption.Create();
    option.SetVariableValue(BOSConst.CST_ConvertValidatePermission, true);
    PushArgs pushArgs = new PushArgs(ruleElement, rows.ToArray());
    // 转换生成目标单
    ConvertOperationResult convResult = AppServiceContext.ConvertService.Push(this.Context, pushArgs, option);
    DynamicObject[] destObjs = convResult.TargetDataEntities.Select(r => r.DataEntity).ToArray();
    // 目标单元数据
    FormMetadata destFormMetadata = AppMetadataContext.LoadWithNoVerCheck(this.Context, "destFormId") as FormMetadata;
    // 操作选项
    option = OperateOption.Create();
    option.SetIgnoreWarning(false);
    // 上一步操作成功的目标单
    List<object> lastSuccessIdLst = new List<object>();
    // 本操作成功的目标单
    List<object> successIdLst = new List<object>();
    // 操作失败的目标单
    List<DynamicObject> failedobjs = new List<DynamicObject>();
    // 操作结果
    IOperationResult result = new OperationResult();
    // 错误信息
    List<ValidationErrorInfo> errorLst = new List<ValidationErrorInfo>();
    ////////////////////////////// 暂存 //////////////////////////////
    IDraftService service = Kingdee.BOS.Contracts.ServiceFactory.GetService<IDraftService>(this.Context);
    IOperationResult innerResult = service.Draft(this.Context, destFormMetadata.BusinessInfo, destObjs);
    // 暂存成功的目标单
    successIdLst = innerResult.OperateResult.Select(o => o.PKValue).Distinct().ToList();
    // 暂存不通过的目标单
    failedobjs = destObjs.Where(o => !successIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))).ToList();
    if (failedobjs != null && !failedobjs.IsEmpty())
    {
    errorLst.Add(new ValidationErrorInfo("", "Id", 0, 0, "DraftError", string.Format("{0}暂存失败：{1}",
    string.Join(",", failedobjs.Select(o => o.GetDynamicObjectItemValue<string>("BillNo"))), string.Join("\n", innerResult.ValidationErrors.Select(o => o.Message))), "", ErrorLevel.Error));
    }
    // 暂存不通过，则操作失败
    if (successIdLst.IsEmpty())
    {
    result.IsSuccess = false;
    }
    e.DataEntitys = e.DataEntitys.Where(o => successIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))).ToArray();
    ////////////////////////////// 保存 //////////////////////////////
    if (!successIdLst.IsEmpty())
    {
    lastSuccessIdLst = successIdLst;
    innerResult = AppServiceContext.SaveService.Save(this.Context, destFormMetadata.BusinessInfo, destObjs.Where(o => successIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))).ToArray(), option);
    // 保存成功的目标单
    successIdLst = innerResult.OperateResult.Select(o => o.PKValue).Distinct().ToList();
    // 校验不通过的目标单
    failedobjs = destObjs.Where(o => lastSuccessIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))
    && !successIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))).ToList();
    if (failedobjs != null && !failedobjs.IsEmpty())
    {
    errorLst.Add(new ValidationErrorInfo("", "Id", 0, 0, "SaveError", string.Format("{0}保存失败，已暂存：{1}",
    string.Join(",", failedobjs.Select(o => o.GetDynamicObjectItemValue<string>("BillNo"))), string.Join("\n", innerResult.ValidationErrors.Select(o => o.Message))), "", ErrorLevel.Error));
    }
    }
    ////////////////////////////// 提交 //////////////////////////////
    if (!successIdLst.IsEmpty())
    {
    lastSuccessIdLst = successIdLst;
    innerResult = AppServiceContext.SubmitService.Submit(this.Context, destFormMetadata.BusinessInfo, successIdLst.ToArray(), "Submit", option);
    // 提交成功的目标单
    successIdLst = innerResult.OperateResult.Select(o => o.PKValue).Distinct().ToList();
    // 校验不通过的目标单
    failedobjs = destObjs.Where(o => lastSuccessIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))
    && !successIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))).ToList();
    if (failedobjs != null && !failedobjs.IsEmpty())
    {
    errorLst.Add(new ValidationErrorInfo("", "Id", 0, 0, "SubmitError", string.Format("{0}提交失败，已保存：{1}",
    string.Join(",", failedobjs.Select(o => o.GetDynamicObjectItemValue<string>("BillNo"))), string.Join("\n", innerResult.ValidationErrors.Select(o => o.Message))), "", ErrorLevel.Error));
    }
    }
    ////////////////////////////// 审核 //////////////////////////////
    if (!successIdLst.IsEmpty())
    {
    lastSuccessIdLst = successIdLst;
    List<KeyValuePair<object, object>> pkIds = new List<KeyValuePair<object, object>>();
    foreach (var o in successIdLst)
    {
    pkIds.Add(new KeyValuePair<object, object>(o, ""));
    }
    //审核
    List<object> paraAudit = new List<object>();
    //1审核通过
    paraAudit.Add("1");
    //审核意见
    paraAudit.Add("");
    innerResult = AppServiceContext.SetStatusService.SetBillStatus(this.Context, destFormMetadata.BusinessInfo, pkIds, paraAudit, "Audit", option);
    // 审核成功的目标单
    successIdLst = innerResult.OperateResult.Select(o => o.PKValue).Distinct().ToList();
    // 审核不通过的目标单
    failedobjs = destObjs.Where(o => lastSuccessIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))
    && !successIdLst.Contains(o.GetDynamicObjectItemValue<object>("Id"))).ToList();
    if (failedobjs != null && !failedobjs.IsEmpty())
    {
    errorLst.Add(new ValidationErrorInfo("", "Id", 0, 0, "AuditError", string.Format("{0}审核失败，已提交：{1}",
    string.Join(",", failedobjs.Select(o => o.GetDynamicObjectItemValue<string>("BillNo"))), string.Join("\n", innerResult.ValidationErrors.Select(o => o.Message))), "", ErrorLevel.Error));
    }
    }
    ////////////////////////////// 构造错误信息 //////////////////////////////
    if (!errorLst.IsNullOrEmpty())
    {
    result.ValidationErrors.AddRange(errorLst);
    }
    // 将操作结果合并到空操作结果中
    this.OperationResult.IsSuccess = result.IsSuccess;
    if (!this.OperationResult.IsSuccess)
    {
    this.OperationResult.ValidationErrors.Add(new ValidationErrorInfo("", "Id", 0, 0, "Error", string.Format("自动转换失败"), "", ErrorLevel.Error));
    }
    this.OperationResult.MergeResult(result);
    }

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