public ActionResult deleteLine()
{
string templateId = Request.Form["templateId"];
string LineID = Request.Form["LineID"];
if (Session[templateId] != null)
{
MyDB mydb = Session[templateId] as MyDB;
/// 连接线可能有三种情况:来自于活动,表达式,或分支节点的缺省
WFNodeAction action = mydb.WFNodeActions.Find(LineID);
if (action != null)
{
mydb.WFNodeActions.Remove(action);
return(Json(new { success = true }));
}
WFNodeExpression expression = mydb.WFNodeExpressions.Find(LineID);
if (expression != null)
{
mydb.WFNodeExpressions.Remove(expression);
return(Json(new { success = true }));
}
WFNodeStart start = mydb.WFNodeStarts.Find(LineID);
if (start != null)
{
start.Next = null;
return(Json(new { success = true }));
}
return(Json(new { success = false }));
}
return(Json(new { success = false }));
}
//
public ActionResult addNodeAction()
{
string templateId = Request.Form["templateId"];
string from = Request.Form["from"];
string to = Request.Form["to"];
string Name = Request.Form["Name"];
string Code = Request.Form["Code"];
if (Session[templateId] != null)
{
MyDB mydb = Session[templateId] as MyDB;
WFTemplate template = mydb.WFTemplates.Find(templateId);
WFNodeAction action = new WFNodeAction
{
ID = Guid.NewGuid().ToString(),
Code = Code,
Name = Name,
WFNode = mydb.WFNodeHandles.Find(from),
NextNode = mydb.WFNodes.Find(to)
};
mydb.WFNodeActions.Add(action);
return(Json(new { success = true, data = action.ID }));
}
return(Json(new { success = false }));
}
public ActionResult modifyTemplate()
{
string id = Request.Params["templateId"];
string mode = Request.Params["mode"];
if (Session[id] == null)
{
Session[id] = new MyDB();
}
MyDB mydb = Session[id] as MyDB;
switch (mode)
{
case "select":
{
if (Request.Params["nodeID"] != null)
{
string nodeID = Request.Params["nodeID"];
int x = int.Parse(Request.Params["x"]);
int y = int.Parse(Request.Params["y"]);
WFNode node = mydb.WFNodes.Find(nodeID);
node.PositionX = x;
node.PositionY = y;
}
else if (Request.Params["lineID"] != null)
{
string LineID = Request.Params["lineID"];
if (string.IsNullOrEmpty(Request.Params["x"]) || string.IsNullOrEmpty(Request.Params["y"]))
{
WFNodeAction action = mydb.WFNodeActions.Find(LineID);
if (action != null)
{
action.PositionX = null;
action.PositionY = null;
}
WFNodeExpression expression = mydb.WFNodeExpressions.Find(LineID);
if (expression != null)
{
expression.PositionX = null;
expression.PositionY = null;
}
}
else
{
int x = int.Parse(Request.Params["x"]);
int y = int.Parse(Request.Params["y"]);
WFNodeAction action = mydb.WFNodeActions.Find(LineID);
if (action != null)
{
action.PositionX = x;
action.PositionY = y;
}
WFNodeExpression expression = mydb.WFNodeExpressions.Find(LineID);
if (expression != null)
{
expression.PositionX = x;
expression.PositionY = y;
}
}
}
}
break;
case "move":
{
int x = int.Parse(Request.Params["x"]);
int y = int.Parse(Request.Params["y"]);
WFTemplate t = mydb.WFTemplates.Find(id);
t.OffsetX = x;
t.OffsetY = y;
}
break;
default:
break;
}
return(Json(new { success = true }));
}
/// <summary>
/// 处理当前流程实例节点
/// 1.判断节点类型
/// 2.如果是处理节点,则取活动CODE,找到下一个节点,调用推入
/// 3.如果是分支节点,则计算表达式,找到下一个节点,调用推入
/// 4.如果是结束节点,完成结束必须的工作
/// </summary>
/// <param name="instNodeID">当前流程实例节点ID</param>
/// <param name="ctx">HTTP上下文</param>
private void process(string instNodeID, HttpContextBase ctx)
{
using (MyDB mydb = new MyDB())
{
WFInstNode current = mydb.WFInstNodes.Find(instNodeID);
WFInst inst = current.WFInst;
if (current.WFNode is WFNodeHandle)
{
string actionID = Request.Form["actionID"];
string UserID = ctx.User.Identity.Name;
WFNodeAction action = mydb.WFNodeActions.Find(actionID);
WFNode next = action.NextNode;
if (next != null)
{
Type t = getType(inst.WFTemplate);
PropertyInfo[] PropertyInfos = t.GetProperties().ToArray();
foreach (string key in Request.Form.Keys)
{
PropertyInfo pi = t.GetProperty(key);
if (pi != null)
{
DisplayAttribute[] attrs = pi.GetCustomAttributes(typeof(DisplayAttribute), true) as DisplayAttribute[];
if (attrs.Length > 0)
{
pi.SetValue(
inst,
//Request.Form[key],
Convert.ChangeType(Request.Form[key], pi.PropertyType.UnderlyingSystemType),
null);
}
}
}
// 当前节点处理完成,准备转入下一节点
current.State = "已处理";
current.LeaveTime = DateTime.Now;
current.Summary = string.Format("节点名称:{0},处理人:{1},动作:{2}", current.WFNode.Name, mydb.Subjects.Find(UserID).Name, action.Name);
// 节点处理人
WFInstNodeHandler handler = current.WFInstNodeHandlers.First(h => h.Handler.ID.Equals(UserID));
handler.HandleTime = DateTime.Now;
handler.Opinion = action.Name;
handler.State = "已处理";
// 其他的处理人置为失效
foreach (WFInstNodeHandler other in current.WFInstNodeHandlers.Where(h => !h.Handler.ID.Equals(UserID)))
{
handler.State = "已失效";
}
mydb.SaveChanges();
this.entry(inst.ID, next.ID, ctx);
return;
}
}
else if (current.WFNode is WFNodeXORSplit)
{
WFNodeXORSplit Split = current.WFNode as WFNodeXORSplit;
Type t = getType(inst.WFTemplate);
PropertyInfo[] PropertyInfos = t.GetProperties().ToArray();
IEnumerable <WFNodeExpression> exps = Split.WFNodeExpressions.OrderBy(exp => exp.OrderNO).Select(exp => exp);
foreach (WFNodeExpression exp in exps)
{
string expString = exp.Expression;
foreach (PropertyInfo pi in PropertyInfos)
{
DisplayAttribute[] attrs = pi.GetCustomAttributes(typeof(DisplayAttribute), true) as DisplayAttribute[];
if (attrs.Length > 0)
{
string Name = attrs[0].Name;
expString = expString.Replace(
string.Format("{{{0}}}", Name),
pi.Name
);
}
}
expString = string.Format("select count(*) as v from {2}s where ID=\"{0}\" and {1}", current.WFInst.ID, expString, inst.WFTemplate.BuizCode);
//int count = mydb.WFInsts.Where(expString).Count();
int count = mydb.Database.SqlQuery <int>(expString, new object[] { }).ToArray()[0];
if (count > 0)// 条件满足,短路,找下一节点
{
current.Summary = string.Format("节点名称:{0},满足条件:{1}", current.WFNode.Name, exp.Expression);
current.LeaveTime = DateTime.Now;
current.State = "已处理";
mydb.SaveChanges();
this.entry(inst.ID, exp.Next.ID, ctx);
return;
}
}
}
else if (current.WFNode is WFNodeFinish)
{
current.Summary = "流程结束";
current.LeaveTime = DateTime.Now;
current.State = "已处理";
inst.State = "已处理";
mydb.SaveChanges();
return;
}
else
{
}
}
}
