private void setPreviousWeekliesToFalse()
{
TutorMasterDBEntities4 db = new TutorMasterDBEntities4(); //connect to the database
List <Commitment> cmtList = (from stucmt in db.StudentCommitments //get the commit list of the signed in student
where stucmt.ID == id
join cmt in db.Commitments on stucmt.CmtID equals cmt.CmtID
select cmt).ToList();
List <DateTime> searchList = new List <DateTime>(); //initialize search list
SortsAndSearches.QuickSort(ref cmtList, cmtList.Count());
searchList = getStartTimes(); //get the startTimes from the listview
for (int i = 0; i < cmtList.Count(); i++) //for each commitment in the commit list
{
if (DateTimeMethods.weeklyAndFound(cmtList[i], searchList)) //if the commitment is in the search list and weekly
{
DateTime startSemes = new DateTime(2017, 1, 1, 0, 0, 0);
DateTime weekBack = Convert.ToDateTime(cmtList[i].StartTime).AddDays(-7); //go a week back in time
while (DateTime.Compare(startSemes, weekBack) <= 0) //perform a binary search here
{
bool found = false;
int first = 0;
int last = cmtList.Count() - 1;
while (first <= last && !found)
{
int midpoint = (first + last) / 2;
if (DateTimeMethods.sameTime(cmtList[midpoint], weekBack)) //if you find the weekBack date time
{
if (cmtList[midpoint].Open == true) //if the commitment is open
{
cmtList[midpoint].Weekly = false; //set its weekly to false
db.SaveChanges(); //save the changes to the database
}
found = true;
}
else
{
if (DateTimeMethods.weekBackEarlier(weekBack, cmtList[midpoint])) //if weekback is earlier, search first half of list
{
last = midpoint - 1;
}
else //else, search the second half of the list
{
first = midpoint + 1;
}
}
}
weekBack = weekBack.AddDays(-7); //go a week back in time
}
}
}
}
private void deleteAvail(bool week)
{
TutorMasterDBEntities4 db = new TutorMasterDBEntities4(); //connect to the database
List <Commitment> cmtList = (from stucmt in db.StudentCommitments //get the student's commitments
where stucmt.ID == id
join cmt in db.Commitments on stucmt.CmtID equals cmt.CmtID
select cmt).ToList();
SortsAndSearches.QuickSort(ref cmtList, cmtList.Count()); //sort the list by DateTime
List <DateTime> searchList = new List <DateTime>();
searchList = getStartTimes(); //get the starttimes from the listview
if (week)
{
for (int i = 0; i < cmtList.Count(); i++)
{
if (SortsAndSearches.BinarySearch(searchList, Convert.ToDateTime(cmtList[i].StartTime)))
{
if (cmtList[i].Weekly == true)
{ //ask the user if they want to delete the weekly commitment through the end of the semester
DateTime endSemes = new DateTime(2017, 5, 1, 0, 0, 0); //get end of semester
DateTime weekForward = Convert.ToDateTime(cmtList[i].StartTime).AddDays(7); //go a week forward
while (DateTimeMethods.endOfSemesIsLater(endSemes, weekForward)) //if the end of the semester is later than our commitment start Time
{ //run a binary search
bool found = false;
int first = 0;
int last = cmtList.Count() - 1;
while (first <= last && !found)
{
int midpoint = (first + last) / 2;
if (DateTimeMethods.sameTime(cmtList[midpoint], weekForward)) //if commitment time and weekforward time are the same
{
if (cmtList[midpoint].Open == true) //and if the midpoint commitment is open
{
db.Commitments.DeleteObject(cmtList[midpoint]); //delete the commitment from the database
cmtList.Remove(cmtList[midpoint]); //remove it from the commit list as well
db.SaveChanges();
}
found = true; //say we found what we were looking for
break; //break out of the search
}
else
{
if (DateTimeMethods.forwardEarlierThanStart(weekForward, cmtList[midpoint]))
{
last = midpoint - 1;
}
else
{
first = midpoint + 1;
}
}
}
weekForward = weekForward.AddDays(7);
}
}
searchList.Remove(Convert.ToDateTime(cmtList[i].StartTime));
db.Commitments.DeleteObject(cmtList[i]);
i--;
db.SaveChanges();
}
}
MessageBox.Show("The checked 15 minute time blocks have been removed from your availability until the end of the semster.");
}
else
{
for (int i = 0; i < cmtList.Count(); i++)
{
if (SortsAndSearches.BinarySearch(searchList, Convert.ToDateTime(cmtList[i].StartTime)))
{
searchList.Remove(Convert.ToDateTime(cmtList[i].StartTime));
db.Commitments.DeleteObject(cmtList[i]);
i--;
db.SaveChanges();
}
}
MessageBox.Show("Only the checked 15 minute time blocks have been removed from your availability.");
}
}
