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);
}
public void loadEvent(int eventNum)
{
//dynamically get information about the selected event
MySqlDataReader events = Database.executeQuery("SELECT * FROM Event WHERE EventID = '" + eventNum + "';");
//there should only be one event returned
while (events.Read() == true)
{
//populate form with information retrieved from database
txtEventTitle.Text = events.GetString(1);
txtEventDescription.Text = events.GetValue(2).ToString();
txtLocation.Text = events.GetValue(3).ToString();
dtEventStartDate.Value = events.GetDateTime(4);
dtEventStartTime.Value = events.GetDateTime(4);
dtEventEndDate.Value = events.GetDateTime(5);
dtEventEndTime.Value = events.GetDateTime(5);
chkAllDayEvent.Checked = Convert.ToBoolean(events.GetString(6));
chkAllDayEvent_CheckedChanged(null, null);
}
events.Close();
//query to get information if a graded assignment
MySqlDataReader graded = Database.executeQuery("SELECT * FROM GradedAssignment WHERE EventID = '"
+ eventNum + "';");
//clear the existing grade information
txtEventGrade.ResetText();
txtEventGradeTotalPoints.ResetText();
//get the grade information from the database (there should only be one result row returned)
if (graded.Read() == true)
{
chkGradedAssignment.Checked = true;
chkGradedAssignment_CheckedChanged(null, null);
//set the name and grade information for the event
txtAssignmentName.Text = graded.GetString(1);
txtEventGrade.Text = graded.GetValue(2).ToString();
txtEventGradeTotalPoints.Text = graded.GetValue(3).ToString();
//set the current class associated with the grade assignment
cbEventClass.SelectedIndex = currentClassId.IndexOf(graded.GetInt32(4));
//add possible types to choose from based on current class
Util.addTypes(cbEventType, currentClassId[cbEventClass.SelectedIndex].ToString(), false, null);
//set the current event type for the drop down list
cbEventType.Text = graded.GetString(5);
}
else
{
//reset all parts of the graded assignment portion of the event
chkGradedAssignment.Checked = false;
chkGradedAssignment_CheckedChanged(null, null);
txtAssignmentName.ResetText();
cbEventClass.SelectedIndex = -1;
cbEventType.SelectedIndex = -1;
}
graded.Close();
//set the selected event to the event with the given id (used if passing in event id
// into constructor when an event is double clicked)
cbEvent.SelectedIndex = eventId.IndexOf(eventNum);
//update save and delete buttons (will now be enabled since we have selected an event)
updateButtons();
}
