public IActionResult UpdateNewsletter(int newsletterId, string oldMemo, string memo, string oldDisplayDate, string displayDate)
{
// handle possible nulls.
oldMemo = string.IsNullOrEmpty(oldMemo) ? "" : oldMemo.Trim();
memo = string.IsNullOrEmpty(memo) ? "" : memo.Trim();
oldDisplayDate = string.IsNullOrEmpty(oldDisplayDate) ? "" : oldDisplayDate.Trim();
displayDate = string.IsNullOrEmpty(displayDate) ? "" : displayDate.Trim();
bool memoChanged = (oldMemo.Equals(memo) == false);
bool displayDateChanged = (oldDisplayDate.Equals(displayDate) == false);
if (memoChanged || displayDateChanged)
{
NewsletterModel oldNewsletter = _newsletter.GetNewsletterById(newsletterId);
if (memoChanged)
{
oldNewsletter.Memo = memo;
}
if (displayDateChanged)
{
oldNewsletter.DisplayDate = displayDate;
}
bool successfulUpdate = _newsletter.UpdateNewsletter(oldNewsletter);
}
return(RedirectToAction("EditNewsletter", new { newsletterId = newsletterId }));
}
