public bool Create(ViewModels.EventClassViewModel eventClassViewModel)
{
bool ret = false;
try
{
EventClass eventClass = new EventClass();
eventClass.Class = eventClassViewModel.Class;
eventClass.Name = eventClassViewModel.Name;
db.EventClass.Add(eventClass);
db.SaveChanges();
ret = true;
}
catch
{
}
return ret;
}
public bool Update(ViewModels.EventClassViewModel eventClassViewModel)
{
bool ret = false;
try
{
if (eventClassViewModel.Class == eventClassViewModel.OldClass)
{
EventClass e = db.EventClass.Find(eventClassViewModel.OldClass);
e.Name = eventClassViewModel.Name;
db.SaveChanges();
ret = true;
}
else
{
EventClass e = new EventClass();
e.Class = eventClassViewModel.Class;
e.Name = eventClassViewModel.Name;
db.EventClass.Add(e);
db.SaveChanges();
var qry = db.WBSEventC.Where(x => x.EventClass == eventClassViewModel.OldClass);
foreach (WBSEventC o in qry)
{
o.EventClass = eventClassViewModel.Class;
}
db.SaveChanges();
EventClass e2 = db.EventClass.Find(eventClassViewModel.OldClass);
db.EventClass.Remove(e2);
db.SaveChanges();
ret = true;
}
}
catch (DbUpdateConcurrencyException ex)
{
// Update the values of the entity that failed to save from the store
ex.Entries.Single().Reload();
}
catch (DbEntityValidationException ex)
{
var errorMessages = ex.EntityValidationErrors
.SelectMany(x => x.ValidationErrors)
.Select(x => x.ErrorMessage);
// Join the list to a single string.
var fullErrorMessage = string.Join("; ", errorMessages);
// Combine the original exception message with the new one.
var exceptionMessage = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage);
// Throw a new DbEntityValidationException with the improved exception message.
throw new DbEntityValidationException(exceptionMessage, ex.EntityValidationErrors);
}
return ret;
}