protected override void OnModifyWorkflow(WfExecutorDataContext dataContext)
{
(this.Assignees.Count > 0).FalseThrow <WfRuntimeException>("加签的用户数必须大于零");
IWfProcess process = this.TargetActivity.Process;
WfRuntime.ProcessContext.BeginChangeActivityChangingContext();
try
{
WfRuntime.ProcessContext.ActivityChangingContext.CreatorInstanceID = OperatorActivity.ID;
string clonedKey = TargetActivity.Descriptor.AssociatedActivityKey.IsNotEmpty() ?
TargetActivity.Descriptor.AssociatedActivityKey : TargetActivity.Descriptor.Key;
IWfActivity templateAct = process.Activities.FindActivityByDescriptorKey(clonedKey);
//不是仅添加审批人时
if ((this.AddApproverMode & WfAddApproverMode.AreAssociatedActivities) != WfAddApproverMode.OnlyAddApprover)
{
WfRuntime.ProcessContext.ActivityChangingContext.AssociatedActivityKey = clonedKey;
}
//生成加签的点
WfActivityDescriptor addActDesp = CreateAddApproverActivityDescriptor(templateAct.Descriptor);
IWfActivity addedActivity = this.TargetActivity.Append(addActDesp);
//当仅添加审批人时
if ((this.AddApproverMode & WfAddApproverMode.AreAssociatedActivities) == WfAddApproverMode.OnlyAddApprover)
{
//将指派人直接赋值给办理人
addedActivity.Candidates.CopyFrom(this.Assignees);
IWfActivityDescriptor mainStreamActDesp = templateAct.GetMainStreamActivityDescriptor();
if (mainStreamActDesp != null)
{
WfActivityDescriptor newMSActDesp = CreateAddApproverActivityDescriptor(mainStreamActDesp);
newMSActDesp.Resources.Clear();
foreach (IUser user in this.Assignees.ToUsers())
{
newMSActDesp.Resources.Add(new WfUserResourceDescriptor(user));
}
mainStreamActDesp.Append(newMSActDesp);
}
}
//不是仅添加审批人时
if ((this.AddApproverMode & WfAddApproverMode.AppendCurrentActivity) != WfAddApproverMode.OnlyAddApprover)
{
//Clone当前的点，在加签点后生成再添加当前活动
IWfActivity foundActivity = process.Activities.FindActivityByDescriptorKey(clonedKey);
WfActivityDescriptor clonedCurrentActDesp = ((WfActivityDescriptor)foundActivity.Descriptor).Clone() as WfActivityDescriptor;
//加签按照加签活动模板进行属性设置
WfActivityBase.ResetPropertiesByDefinedName(addActDesp, "DefaultAddApproverActivityTemplate");
//if (foundActivity.Descriptor.ActivityType == WfActivityType.InitialActivity)
// WfActivityBase.ResetPropertiesByDefinedName(clonedCurrentActDesp, "DefaultAddApproverActivityTemplate");
clonedCurrentActDesp.AssociatedActivityKey = WfRuntime.ProcessContext.ActivityChangingContext.AssociatedActivityKey;
clonedCurrentActDesp.ClonedKey = this.TargetActivity.Descriptor.Key;
clonedCurrentActDesp.IsReturnSkipped = true;
IWfActivity clonedActivity = addActDesp.Instance.Append(clonedCurrentActDesp);
clonedActivity.Candidates.CopyFrom(foundActivity.Candidates);
}
WfTransferParams tp = new WfTransferParams(addActDesp);
tp.Assignees.CopyFrom(this.Assignees);
process.MoveTo(tp);
}
finally
{
WfRuntime.ProcessContext.RestoreChangeActivityChangingContext();
}
}