private List <int?> GetNextEditionStartDateDifferences(EditionEntity edition)
{
var nextEdition = _editionServices.GetNextEdition(edition, Utility.Constants.ValidEventTypesForCed);
if (nextEdition == null)
{
return new List <int?> {
null, null
}
}
;
var weekDiff = edition.StartDate.GetValueOrDefault().WeekOfYearDiff(nextEdition.StartDate.GetValueOrDefault());
var dayDiff = edition.StartDate.GetValueOrDefault().DayOfYearDiff(nextEdition.StartDate.GetValueOrDefault());
return(new List <int?> {
weekDiff, dayDiff
});
}