public bool StoreActivity(ActivityObj acObj)
{
try
{
var ac =
(from a in Activities
where a.Name == acObj.Name && a.Version == ConvertVersion(acObj.Version)
select a).SingleOrDefault();
if (ac == null)
{
ac = new Activity
{
Name = acObj.Name,
Version = ConvertVersion(acObj.Version),
Description = acObj.Description,
Json = JsonConvert.SerializeObject(acObj)
};
Activities.InsertOnSubmit(ac);
}
ac.Json = JsonConvert.SerializeObject(acObj);
SubmitChanges(ConflictMode.FailOnFirstConflict);
return(true);
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// Create a task, its symbol data and shape when a Palette symbol is dropped on the diagram
/// </summary>
/// <param name="symbolType"></param>
/// <param name="datum"></param>
public TaskObj CreateTask(PaletteObj symbolType, Point datum)
{
var symbolTask = symbolType.Task;
if (symbolTask.ActivityName == "cleanup" && Model.Workflow.Tasks.Any(t => t.ActivityName == "cleanup"))
{
MessageBox.Show("No more than one Cleanup Start symbol permitted");
return(null);
}
ActivityObj activity = null;
if (symbolTask.HasActivity())
{
var json = RestClient.Get($"/activities/{symbolTask.ActivityName}/versions/{symbolTask.ActivityVersion}");
activity = JsonConvert.DeserializeObject <ActivityObj>(json);
if (activity == null)
{
MessageBox.Show($"Missing activity - {symbolTask.ActivityName} {symbolTask.ActivityVersion}", "Database error");
return(null);
}
}
var task = new TaskObj
{
TaskId = Guid.NewGuid().ToString().Substring(0, 8),
ActivityName = symbolTask.ActivityName,
ActivityVersion = symbolTask.ActivityVersion,
Outflows = (from f in symbolTask.Outflows
select new FlowObj {
Name = f.Name
}).ToArray(),
Symbol = CloneSymbol(symbolTask.Symbol),
FailOutflow = new FlowObj {
Name = "Err"
},
HiddenProperties = symbolTask.HiddenProperties
};
if (activity != null)
{
task.Inputs = new InputCollection(activity.Inputs);
if (task.Outflows.Length != 0)
{
task.Outputs = new OutputCollection(activity.Outputs);
}
}
// Override or add inputs with data from palette symbol
if (symbolTask.Inputs != null)
{
foreach (var input in symbolTask.Inputs)
{
task.Inputs[input.Key] = input.Value;
}
}
// Override or add outputs with data from palette symbol
if (symbolTask.Outputs != null)
{
foreach (var output in symbolTask.Outputs)
{
task.Outputs[output.Key] = output.Value;
}
}
task.Symbol.Shape = Shape.Create(task.Symbol.Style, task, datum);
if (symbolTask.HasFailOutflow())
{
task.FailOutflow = new FlowObj {
Name = "Err"
};
}
Model.Workflow.Tasks.Add(task);
task.TaskChanged += UpdateGraphics;
return(task);
}