private bool saveSemesterInfo()
{
//ensure a semester name was entered
if (txtSemesterName.Text.Equals(""))
{
Util.displayRequiredFieldsError("Semester Name");
}
//ensure a semester with the same semester id does not already exist
else if (Database.attributeExists("semesterID = '" + ctrSemester.Value + "'", "Semester"))
{
Util.displayError("The Entered Semester Number Already Exists", "Invalid Semester Number");
}
//ensure the end semester date occurs on or after the start semester date
else if (dtSemesterEndDate.Value < dtSemesterStartDate.Value)
{
Util.displayError("The End Date Must Be Later Than The Start Date", "Invalid Semester Dates");
}
else
{
//update the semester fields in the database
Database.modifyDatabase("INSERT INTO Semester VALUES('" + ctrSemester.Value + "',"
+ Util.quote(txtSemesterName.Text) + ","
+ "DATE('" + Database.getDate(dtSemesterStartDate.Value) + "'),"
+ "DATE('" + Database.getDate(dtSemesterEndDate.Value) + "'))");
return(true);
}
return(false);
}
//a function that updates the list of all events based on the given criteria
private void updateEventList()
{
//clear all events
eventId.Clear();
cbEvent.Items.Clear();
StringBuilder query = new StringBuilder("SELECT e.EventID, Title FROM Event e");
if (cbClassFilter.SelectedIndex == -1)
{
query.Append(" LEFT OUTER JOIN GradedAssignment g ON e.EventID = g.EventID");
}
else
{
query.Append(" NATURAL JOIN GradedAssignment");
}
//convert the date value in the datetimepicker into SQLite format
string date = Database.getDate(dtFilterDate.Value);
if (chkDateFilter.Checked == true)
{
query.Append(" WHERE DATETIME('" + date + " 00:00:00') < StartDateTime AND DATETIME('" + date + " 23:59:59') > EndDateTime");
}
//determine if a class has been selected
if (cbClassFilter.SelectedIndex > 0)
{
if (query.ToString().Contains("WHERE"))
{
query.Append(" AND");
}
else
{
query.Append(" WHERE");
}
query.Append(" ClassID = '" + allClassId[cbClassFilter.SelectedIndex - 1] + "' ");
}
query.Append(" ORDER BY Title");
//dynamically add list of possible events to edit
SQLiteDataReader events = Database.executeQuery(query.ToString());
while (events.Read() == true)
{
eventId.Add(events.GetInt32(0));
cbEvent.Items.Add(events.GetString(1));
}
events.Close();
//update the save and delete buttons (will disable since no event will be choosen)
updateButtons();
}
private bool saveSemester()
{
//ensure a semester name was entered
if (txtSemesterName.Text.Equals(""))
{
Util.displayRequiredFieldsError("Semester Name");
}
//ensure a semester with the same semester id does not already exist
else if (semesterId[cbEditSemester.SelectedIndex] != ctrSemesterNum.Value && Database.attributeExists("semesterID = '" + ctrSemesterNum.Value + "'", "Semester"))
{
Util.displayError("The Entered Semester Number Already Exists", "Invalid Semester Number");
}
//ensure the end semester date occurs on or after the start semester date
else if (dtSemesterEndDate.Value < dtSemesterStartDate.Value)
{
Util.displayError("The End Date Must Be Later Than The Start Date", "Invalid Semester Dates");
}
else
{
//update the semester fields in the database
Database.modifyDatabase("UPDATE Semester SET Name = " + Util.quote(txtSemesterName.Text)
+ ", StartDate = DATE('" + Database.getDate(dtSemesterStartDate.Value) + "')"
+ ", StartDate = DATE('" + Database.getDate(dtSemesterEndDate.Value) + "')"
+ " WHERE SemesterID = '" + semesterId[cbEditSemester.SelectedIndex] + "';");
//update semester id if necessary
if (semesterId[cbEditSemester.SelectedIndex] != ctrSemesterNum.Value)
{
Database.modifyDatabase("UPDATE Semester SET SemesterID = '" + ctrSemesterNum.Value + "'"
+ " WHERE SemesterID = '" + semesterId[cbEditSemester.SelectedIndex] + "';");
}
//refresh values in semester combobox
int previousIndex = cbEditSemester.SelectedIndex;
Util.addSemesters(cbEditSemester, semesterId, false);
cbEditSemester.SelectedIndex = previousIndex;
return(true);
}
return(false);
}
private bool saveEvent()
{
//ensure user entered a title since it is a required field
if (txtEventTitle.Text.Equals("") == true)
{
Util.displayRequiredFieldsError("Event Title");
return(false);
}
//ensure start time is not later than end time (note this does not apply if an all day event)
if (chkAllDayEvent.Checked == false && dtEventStartTime.Value.TimeOfDay > dtEventEndTime.Value.TimeOfDay)
{
Util.displayError("Invalid Start and End Times", "Error");
return(false);
}
//ensure start date is not later than end date (note this does not apply if an all day event)
if (chkAllDayEvent.Checked == false && dtEventStartDate.Value > dtEventEndDate.Value)
{
Util.displayError("Invalid Start and End Dates", "Error");
return(false);
}
//get date in SQLite format
string startDate = Database.getDate(dtEventStartDate.Value);
string endDate = Database.getDate(dtEventEndDate.Value);
//begin transaction
Database.beginTransaction();
//add basic event details database
Database.modifyDatabase("INSERT INTO Event VALUES (null, " + Util.quote(txtEventTitle.Text) + ", " +
Util.quote(txtEventDescription.Text) + ", " + Util.quote(txtLocation.Text) + ", DATETIME('" + startDate + " " + dtEventStartTime.Value.TimeOfDay + "'), DATETIME('" +
endDate + " " + dtEventEndTime.Value.TimeOfDay + "'), '" + chkAllDayEvent.Checked + "', null);");
//check if the event is a graded assignment
if (chkGradedAssignment.Checked == true)
{
//get id of recently inserted event
object eventID = Database.getInsertedID();
double grade = Double.MaxValue;
double gradeTotal = Double.MaxValue;
//ensure an assignment name was given
if (txtAssignmentName.Text.Equals(""))
{
Util.displayRequiredFieldsError("Assignment Name");
return(false);
}
//if a graded assignment, force user to select class and category
if (cbEventClass.Text.Equals("") || cbEventType.Text.Equals(""))
{
Util.displayError("Please select a value for both the class and assignment type", "Error");
return(false);
}
//check that grade and total points are valid number (note that the grade can be empty)
if ((txtEventGrade.Text.Equals("") == false && double.TryParse(txtEventGrade.Text, out grade) == false) || (txtEventGradeTotalPoints.Text.Equals("") == false && double.TryParse(txtEventGradeTotalPoints.Text, out gradeTotal) == false))
{
Util.displayError("Grade and Total Points must be valid decimal numbers", "Invalid Number");
return(false);
}
//ensure grade and total points are positive
if (grade < 0 || gradeTotal < 0)
{
Util.displayError("Grade and Total Points must be positive", "Error");
return(false);
}
//if the grade was an empty string, we need to insert null in the database; otherwise add
// user specified value
string gradeVal = "null";
if (txtEventGrade.Text.Equals("") == false)
{
gradeVal = "'" + grade + "'";
}
//if the grade total was an empty string, we need to insert null into the database
string gradeTotalVal = "null";
if (txtEventGradeTotalPoints.Text.Equals("") == false)
{
gradeTotalVal = "'" + gradeTotal + "'";
}
//add event details to database including all grade information
Database.modifyDatabase("INSERT INTO GradedAssignment VALUES ('" + eventID + "', " + Util.quote(txtAssignmentName.Text) +
", " + gradeVal + ", " + gradeTotalVal + ", '" + classId[cbEventClass.SelectedIndex] + "', '" + cbEventType.Text + "');");
}
//add event to calendar view
newAppt = new Appointment();
newAppt.StartDate = new DateTime(dtEventStartDate.Value.Year, dtEventStartDate.Value.Month, dtEventStartDate.Value.Day, dtEventStartTime.Value.Hour, dtEventStartTime.Value.Minute, 0);
newAppt.EndDate = new DateTime(dtEventEndDate.Value.Year, dtEventEndDate.Value.Month, dtEventEndDate.Value.Day, dtEventEndTime.Value.Hour, dtEventEndTime.Value.Minute, 0);
newAppt.Subject = txtEventTitle.Text;
newAppt.Note = txtEventDescription.Text;
newAppt.Location = txtLocation.Text;
newAppt.AppointmentId = int.Parse(Database.getInsertedID().ToString()); //store unique event id in calendar appointment note
newAppt.Color = Color.Honeydew;
newAppt.BorderColor = Color.DarkBlue;
if (chkAllDayEvent.Checked == true)
{
newAppt.AllDayEvent = true;
newAppt.EndDate = newAppt.EndDate.AddDays(1);
newAppt.Color = Color.Coral;
}
else if (chkGradedAssignment.Checked == true)
{
newAppt.Color = AssignmentPlanner.classColors[classId[cbEventClass.SelectedIndex] % AssignmentPlanner.classColors.Length];
}
if (PlannerSettings.Default.SyncEvents == true)
{
GoogleCalendarSync.addEvent(newAppt);
}
return(true);
}
private bool saveEvent()
{
//current get event id
int currentEventId = eventId[cbEvent.SelectedIndex];
//ensure user entered a title since it is a required field
if (txtEventTitle.Text.Equals("") == true)
{
Util.displayRequiredFieldsError("Event Title");
return(false);
}
//ensure start time is not later than end time (note this does not apply if an all day event)
if (chkAllDayEvent.Checked == false && dtEventStartTime.Value.TimeOfDay > dtEventEndTime.Value.TimeOfDay)
{
Util.displayError("Invalid Start and End Times", "Error");
return(false);
}
//ensure start date is not later than end date (note this does not apply if an all day event)
if (chkAllDayEvent.Checked == false && dtEventStartDate.Value > dtEventEndDate.Value)
{
Util.displayError("Invalid Start and End Dates", "Error");
return(false);
}
//get date in SQLite format
string startDate = Database.getDate(dtEventStartDate.Value);
string endDate = Database.getDate(dtEventEndDate.Value);
//begin transaction
Database.beginTransaction();
//add basic event details database
Database.modifyDatabase("UPDATE Event SET Title = " + Util.quote(txtEventTitle.Text) + ", Description = " +
Util.quote(txtEventDescription.Text) + ", Location = " + Util.quote(txtLocation.Text) + ", StartDateTime = DATETIME('" + startDate + " " + dtEventStartTime.Value.TimeOfDay + "'), EndDateTime = DATETIME('" +
endDate + " " + dtEventEndTime.Value.TimeOfDay + "'), IsAllDay = '" + chkAllDayEvent.Checked + "' "
+ " WHERE EventID = '" + currentEventId + "';");
//check if the event is a graded assignment
if (chkGradedAssignment.Checked == true)
{
//ensure a valid assignment name has been entered
if (txtAssignmentName.Equals("") == true)
{
Util.displayRequiredFieldsError("Assignment Name");
Database.abort();
return(false);
}
double grade = Double.MaxValue;
double gradeTotal = Double.MaxValue;
//if a graded assignment, force user to select class and category
if (cbEventClass.Text.Equals("") || cbEventType.Text.Equals(""))
{
Util.displayError("Please select a value for both the class and assignment type", "Error");
Database.abort();
return(false);
}
//check that grade and total points are valid number (note that the grade can be empty)
if ((txtEventGrade.Text.Equals("") == false && double.TryParse(txtEventGrade.Text, out grade) == false) || (txtEventGradeTotalPoints.Text.Equals("") == false && double.TryParse(txtEventGradeTotalPoints.Text, out gradeTotal) == false))
{
Util.displayError("Grade and Total Points must be valid decimal numbers", "Invalid Number");
Database.abort();
return(false);
}
//ensure grade and total points are positive
if (grade < 0 || gradeTotal < 0)
{
Util.displayError("Grade and Total Points must be positive", "Error");
Database.abort();
return(false);
}
//if the graded assignment already exists, simply update database
if (Database.attributeExists("EventID = '" + currentEventId + "'", "GradedAssignment") == true)
{
//add event details to database including all grade information
Database.modifyDatabase("UPDATE GradedAssignment SET AssignmentName = " + Util.quote(txtAssignmentName.Text) +
", Grade = " + Util.quote(txtEventGrade.Text) + ", GradeTotalWorth = " + Util.quote(txtEventGradeTotalPoints.Text) + ", ClassId = '" + currentClassId[cbEventClass.SelectedIndex] + "', Type = '" + cbEventType.Text + "' " +
"WHERE EventID = '" + currentEventId + "';");
}
//otherwise insert into database
else
{
//add event details to database including all grade information
Database.modifyDatabase("INSERT INTO GradedAssignment VALUES ('" + currentEventId + "', " + Util.quote(txtAssignmentName.Text) +
", " + Util.quote(txtEventGrade.Text) + ", " + Util.quote(txtEventGradeTotalPoints.Text) + ", '" + currentClassId[cbEventClass.SelectedIndex] + "', '" + cbEventType.Text + "');");
}
}
else
{
//delete graded assignment portion of event
Database.modifyDatabase("DELETE FROM GradedAssignment WHERE EventID = '" + currentEventId + "';");
}
//get event in calendar that has the specified event id
bool containsEvent = eventsHash.ContainsKey(currentEventId);
Appointment appt;
if (containsEvent == true)
{
appt = eventsHash[currentEventId];
}
else
{
appt = new Appointment();
}
//update appointment information
appt.StartDate = new DateTime(dtEventStartDate.Value.Year, dtEventStartDate.Value.Month, dtEventStartDate.Value.Day, dtEventStartTime.Value.Hour, dtEventStartTime.Value.Minute, 0);
appt.EndDate = new DateTime(dtEventEndDate.Value.Year, dtEventEndDate.Value.Month, dtEventEndDate.Value.Day, dtEventEndTime.Value.Hour, dtEventEndTime.Value.Minute, 0);
appt.Subject = txtEventTitle.Text;
appt.Note = txtEventDescription.Text;
appt.Location = txtLocation.Text;
appt.Color = Color.Honeydew;
//determine whether event is an all day event and update appointment
if (chkAllDayEvent.Checked == true)
{
appt.AllDayEvent = true;
appt.EndDate = appt.EndDate.AddDays(1);
appt.Color = Color.Coral;
}
else if (chkGradedAssignment.Checked == true)
{
appt.AllDayEvent = false;
appt.Color = AssignmentPlanner.classColors[currentClassId[cbEventClass.SelectedIndex] % AssignmentPlanner.classColors.Length];
}
else
{
appt.AllDayEvent = false;
}
if (PlannerSettings.Default.SyncEvents == true)
{
GoogleCalendarSync.updateEvent(appt);
}
//commit changes to database (end transaction)
Database.commit();
return(true);
}
