/// <summary>
/// Create a list of tasks for a visit. A workorder can have multiple visits
/// Based on the WorkOrder.SelectedTasks a list is created with task attached to the actual visit it was executed
/// </summary>
/// <param name="visit">The visit for which the Tasks are requested</param>
/// <returns></returns>
public ICollection <Task> GetTasksForVisit(Visit visit)
{
// For a visit, all Tasks defined in WorkOrder.SelectedTasks have to be performed by a technician.
// In redo scenario's, it is possible that multiple Visits are created.
// Each Visit shows the same number of tasks (as defined by WorkOrder.SelectedTasks), with their corrsponding status
if (visit == null)
{
return(null);
}
var tasks = new List <Task>();
foreach (var taskInfo in TaskInfos)
{
//Only the last task from a certain specification is shown
var existingTask = Visits.SelectMany(v => v.Tasks).LastOrDefault(t => t.TaskInfo.TaskSpecificationId == taskInfo.TaskSpecificationId && !t.IsDeleted);
if (existingTask == null)
{
existingTask = Task.Create(taskInfo, null); //Task does not yet exist on visit => Create Virtual Task to show in list
existingTask.VisitId = visit.Id;
existingTask.Visit = visit;
existingTask.EndEdit();
existingTask.Delete();
}
else
{
//Task => set to unmodified (Task boundary)
existingTask.EndEdit();
}
tasks.Add(existingTask);
}
return(new ObservableCollection <Task>(tasks.OrderBy(t => t.TaskInfo.SeqNo)));
}