public List <ProcessTaskTree> GetProcessTree(int id)
{
Guid processGuid = _context.Processes.SingleOrDefault(c => c.Id == id).ProcessGuid;
var processTasks = _context.ProcessTasks.Where(pt => pt.ProcessGuid == processGuid).ToList();
bool allNodesAdded = true;
List <ProcessTaskTree> ptree = new List <ProcessTaskTree>();
ProcessTaskTree root = new ProcessTaskTree();
foreach (var pt in processTasks)
{
if (pt.TaskTypeId == 5)
{
root.name = pt.TaskName;
root = updateTree(root, pt.ProcessTaskGuid);
}
}
ptree.Add(root);
return(ptree);
}
ProcessTaskTree updateTree(ProcessTaskTree node, Guid nodeGuid)
{
var children = _context.ProcessTaskTransition.Where(ptt => ptt.SourceTaskGuid == nodeGuid).ToList();
if (children.Count == 0)
{
return(node);
}
else
{
node.children = new List <ProcessTaskTree>();
foreach (var child in children)
{
ProcessTaskTree newNode = new ProcessTaskTree();
var destinationTask = _context.ProcessTasks
.Where(cd => cd.ProcessTaskGuid == child.DestinationTaskGuid)
.FirstOrDefault();
newNode.name = destinationTask.TaskName;
node.children.Add(newNode);
var destChildren = _context.ProcessTaskTransition.Where(ptt => ptt.SourceTaskGuid == destinationTask.ProcessTaskGuid)
.ToList();
if (destChildren.Count > 0)
{
newNode = updateTree(newNode, destinationTask.ProcessTaskGuid);
}
}
return(node);
}
}