/// <summary>
/// Creates a view-model for the announcement
/// </summary>
/// <param name="announcement"></param>
public AnnouncementViewModel(Announcement announcement)
{
Id = announcement.Id;
Title = announcement.Title;
Description = announcement.Description;
CreatedOn = announcement.CreatedOn;
Class = new ClassViewModel(announcement.Class);
}
/// <summary>
/// Creates a new announcement from the given model
/// </summary>
/// <param name="cam"></param>
/// <returns></returns>
public async Task<Announcement> CreateAnnouncement(CreateAnnouncementModel cam)
{
var @class = await _db.Classes.FindAsync(cam.ClassId);
if(@class == null)
{
return null;
}
Announcement announcement = new Announcement
{
Title = cam.Title,
CreatedOn = DateTime.UtcNow,
Description = cam.Description,
Class = @class
};
_db.Announcements.Add(announcement);
await _db.SaveChangesAsync();
return announcement;
}