public static bool GoOn(int id, string performer, string toNodeName = null)
{
using (BasicWebContext context = new BasicWebContext())
{
FlowInstance inst = context.FlowInstances.Find(id);
FlowNode currentNode = context.FlowNodes.Include("ToNodes").Single(x => x.ID == inst.CurrentNodeID);
if (currentNode.ToNodes.Count > 0)
{
var fromNodeID = inst.CurrentNodeID;
var toNodeID = currentNode.ToNodes[0].ID;
if (!string.IsNullOrEmpty(toNodeName))
{
if (currentNode.ToNodes.Any(x => x.Name == toNodeName))
{
toNodeID = currentNode.ToNodes.First(x => x.Name == toNodeName).ID;
}
}
inst.CurrentNodeID = toNodeID;
inst.EndTime = DateTime.Now; // newly 20130708
FlowInstanceAction action = new FlowInstanceAction(id, fromNodeID, toNodeID, performer);
context.FlowInstanceActions.Add(action);
context.SaveChanges();
return(true);
}
else
{
inst.Completed = true;
inst.EndTime = DateTime.Now;
context.SaveChanges();
}
return(false);
}
}
public static void SetCurrentNode(int id, Guid nodeId)
{
using (BasicWebContext context = new BasicWebContext())
{
FlowInstance inst = context.FlowInstances.Find(id);
inst.CurrentNodeID = nodeId;
context.SaveChanges();
}
}
public static int NewInstance(Guid id, string instName, string number, string comment)
{
using (BasicWebContext context = new BasicWebContext())
{
var startNodeID = context.FlowNodes.Where(x => x.WorkflowID == id).Include("FromNodes").First(x => x.FromNodes.Count == 0).ID;
FlowInstance inst = new FlowInstance(instName, id, startNodeID)
{
Number = number, Comment = comment
};
context.FlowInstances.Add(inst);
context.SaveChanges();
return(context.FlowInstances.Max(x => x.ID));
}
}
public static void GoBack(int id, string performer) // newly 20130710 只支持回退一步，在最后两步之间来回跳转。
{
using (BasicWebContext context = new BasicWebContext())
{
FlowInstance inst = context.FlowInstances.Find(id);
FlowInstanceAction action = context.FlowInstanceActions.Where(x => x.FlowInstanceID == id).ToList().LastOrDefault();
if (action != null)
{
var currentID = action.ToNodeID;
var backToID = action.FromNodeID;
inst.CurrentNodeID = backToID;
inst.EndTime = DateTime.Now;
FlowInstanceAction newAction = new FlowInstanceAction(id, currentID, backToID, performer);
context.FlowInstanceActions.Add(newAction);
context.SaveChanges();
}
}
}
