private void FixupPositionInformation(PositionInformation previousValue)
{
if (previousValue != null && ReferenceEquals(previousValue.ChecklistElement, this))
{
previousValue.ChecklistElement = null;
}
if (PositionInformation != null)
{
PositionInformation.ChecklistElement = this;
}
}
private void CheckIfNewBeginTimeAffectsPosInfo(Task taskToUpdate, HardSettings settings)
{
int numPosTrackedDays = settings.DaysOfHistoryToShow;
DateTime posTrackingStartDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month,
DateTime.Now.Day - numPosTrackedDays);
if (taskToUpdate.PositionInformation == null)
{
//BeginTime changed from non-pos-tracking timestamp to pos-tracking timestamp
if (taskToUpdate.BeginTime >= posTrackingStartDate && taskToUpdate.BeginTime <= DateTime.Now)
{
//need to add PositionInfo. Add task to end of Group.
PositionInformation pi = new PositionInformation();
ChecklistElement lastItemOfGroup = taskToUpdate.ParentGroup.ChecklistElements
.SingleOrDefault(ce => ce.PositionInformation != null && ce.PositionInformation.NextItem == null);
if (lastItemOfGroup != null)
{
lastItemOfGroup.PositionInformation.NextItem = taskToUpdate;
pi.PreviousItem = lastItemOfGroup;
}
//else the group is currently empty
taskToUpdate.PositionInformation = pi;
}
}
else
{
//BeginTime changed from pos-tracking timestamp to non-pos-tracking timestamp
//just remove PosInfo.
if (taskToUpdate.BeginTime < posTrackingStartDate || taskToUpdate.BeginTime > DateTime.Now)
{
RemovePosInfoFromLinkedList(taskToUpdate);
}
}
}
