public static ExigoService.CalendarEvent SaveCalendarEvent(ExigoService.CalendarEvent model)
{
// Create our context
var context = Exigo.ODataCalendars();
// Convert our model to the event
var odataCalendarEvent = (CalendarContext.CalendarEvent)model;
// Check to see if we are creating a new event, or changing an existing
if (odataCalendarEvent.CalendarEventID == Guid.Empty)
{
odataCalendarEvent.CalendarEventID = Guid.NewGuid();
context.AddToCalendarEvents(odataCalendarEvent);
}
else
{
context.AttachTo("CalendarEvents", odataCalendarEvent);
context.UpdateObject(odataCalendarEvent);
}
// Save the event
context.SaveChanges();
// Set the new calendar event ID
model.CalendarEventID = odataCalendarEvent.CalendarEventID;
return(model);
}
private static IEnumerable <ExigoService.CalendarEvent> GetCalendarRecurringEventInstances(List <ExigoService.CalendarEvent> instances, ExigoService.CalendarEvent recurringEvent, GetCalendarEventsRequest request, int instanceAttempts = 0)
{
// Set some variables for easier access
if (recurringEvent.CalendarEventRecurrenceTypeID == null)
{
return(instances);
}
var recurrenceTypeID = (int)recurringEvent.CalendarEventRecurrenceTypeID;
var recurrenceInterval = (int)recurringEvent.CalendarEventRecurrenceInterval;
// Before we do anything, validate that our start date is valid based on its recurrence settings
// Weekly recurrence validations
if (recurrenceTypeID == 2)
{
var indexInList = recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek.IndexOf(recurringEvent.StartDate.DayOfWeek);
// If the start date's day of week doesn't match any of the available days in the week,
// we need to make an adjustment to the start date and restart the method.
if (indexInList == -1)
{
instanceAttempts--;
var daysToAdjust = 0;
foreach (var day in recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek)
{
if ((int)day > (int)recurringEvent.StartDate.DayOfWeek)
{
daysToAdjust = (int)day - (int)recurringEvent.StartDate.DayOfWeek;
recurringEvent.StartDate = recurringEvent.StartDate.AddDays(daysToAdjust);
recurringEvent.EndDate = recurringEvent.EndDate.AddDays(daysToAdjust);
break;
}
}
// If we didn't find a day in the week that follows the current day, advance to the first available day in the next week
if (daysToAdjust == 0)
{
daysToAdjust = 7 - ((int)recurringEvent.StartDate.DayOfWeek - (int)recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek.First());
recurringEvent.StartDate = recurringEvent.StartDate.AddDays(daysToAdjust);
recurringEvent.EndDate = recurringEvent.EndDate.AddDays(daysToAdjust);
}
return(GetCalendarRecurringEventInstances(instances, recurringEvent, request, instanceAttempts));
}
}
// Add an instance of this recurring event if applicable
if (recurringEvent.StartDate >= request.StartDate && recurringEvent.StartDate < request.EndDate)
{
// Create and add the instance
var instance = GlobalUtilities.Extend(recurringEvent, new ExigoService.CalendarEvent());
instance.IsRecurringEventInstance = true;
instances.Add(instance);
}
// Increment the amount of instances attempted
instanceAttempts++;
// If we have the maximum number of instances, stop creating instances and return the collection
if (recurringEvent.CalendarEventRecurrenceMaxInstances != null && instanceAttempts >= (int)recurringEvent.CalendarEventRecurrenceMaxInstances)
{
return(instances);
}
// Increment the period of time based on the recurrence type.
switch (recurrenceTypeID)
{
// Daily
case 1:
recurringEvent.StartDate = recurringEvent.StartDate.AddDays(1 * recurrenceInterval);
recurringEvent.EndDate = recurringEvent.EndDate.AddDays(1 * recurrenceInterval);
break;
// Weekly
case 2:
// Determine if we are repeating this event more than once per week.
// If this event only occurs once per week, just add another week.
if (recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek.Count == 1)
{
recurringEvent.StartDate = recurringEvent.StartDate.AddDays(7 * recurrenceInterval);
recurringEvent.EndDate = recurringEvent.EndDate.AddDays(7 * recurrenceInterval);
}
// If this event occurs more than once in a week, let's ensure that we advance the dates appropriately.
else
{
var indexInList = recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek.IndexOf(recurringEvent.UtcStartDate.DayOfWeek);
// If we are on the last day in the list, skip ahead to the front of the list
var daysToAdvance = 0;
if (indexInList == (recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek.Count - 1))
{
daysToAdvance = (7 - ((int)recurringEvent.StartDate.DayOfWeek - (int)recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek.First())) + (7 * (recurrenceInterval - 1));
}
// Otherwise, add the number of days between the current start date and the next day in the week.
else
{
daysToAdvance = ((int)recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek[indexInList + 1]) - ((int)recurringEvent.WeeklyCalendarEventRecurrenceDaysInWeek[indexInList]);
}
recurringEvent.StartDate = recurringEvent.StartDate.AddDays(daysToAdvance);
recurringEvent.EndDate = recurringEvent.EndDate.AddDays(daysToAdvance);
}
break;
// Monthly
case 3:
var monthlyRecurringTypeID = (int)recurringEvent.MonthlyCalendarEventRecurrenceTypeID;
switch (monthlyRecurringTypeID)
{
// Day of the month
case 1:
recurringEvent.StartDate = recurringEvent.StartDate.AddMonths(1 * recurrenceInterval);
recurringEvent.EndDate = recurringEvent.EndDate.AddMonths(1 * recurrenceInterval);
break;
// Day of the week (ie. second Tuesday of the month)
case 2:
// Determine which week and day the current start date is in
var dayOfWeek = recurringEvent.StartDate.DayOfWeek;
var nthWeek = 1;
var checkingDate = recurringEvent.StartDate.BeginningOfMonth().Next(dayOfWeek);
while (recurringEvent.StartDate != checkingDate)
{
checkingDate.AddDays(7);
nthWeek++;
}
var nextMonth = recurringEvent.StartDate.AddMonths(1 * recurrenceInterval).BeginningOfMonth();
var timeDifference = recurringEvent.EndDate.Subtract(recurringEvent.StartDate);
recurringEvent.StartDate = GlobalUtilities.GetNthWeekofMonth(nextMonth, nthWeek, dayOfWeek);
recurringEvent.EndDate = recurringEvent.StartDate.Add(timeDifference);
break;
}
break;
// Yearly
case 4:
recurringEvent.StartDate = recurringEvent.StartDate.AddYears(1 * recurrenceInterval);
recurringEvent.EndDate = recurringEvent.EndDate.AddYears(1 * recurrenceInterval);
break;
}
// If we have exceeded the maximum recurrence end date, stop creating instances and return the collection
if (recurringEvent.CalendarEventRecurrenceEndDate != null && (DateTime)recurringEvent.CalendarEventRecurrenceEndDate < recurringEvent.StartDate)
{
return(instances);
}
// If our new start date has exceeded the range of the original request, stop creating instances and return the collection
if (recurringEvent.StartDate > request.EndDate)
{
return(instances);
}
return(GetCalendarRecurringEventInstances(instances, recurringEvent, request, instanceAttempts));
}
