/// <summary>
/// Returns state of calendar.
/// </summary>
/// <param name="calendar">Calendar dummy.</param>
/// <returns>Success of operation.</returns>
protected virtual StoringObjectState GetCalendarState(T calendar)
{
Entity entity = GetCalendarEntity();
StoringObjectState state = StoringObjectState.New;
if (entity.FetchFromDB(calendar.Id))
{
state = StoringObjectState.Changed;
}
return(state);
}
/// <summary>
/// Applies change.
/// </summary>
/// <param name="state">Calendar state.</param>
/// <param name="calendar">Calendar dummy.</param>
/// <returns>Success of operation.</returns>
protected virtual bool ApplyChange(StoringObjectState state, T calendar)
{
bool result;
switch (state)
{
case StoringObjectState.New: {
result = InsertCalendar(calendar);
break;
}
case StoringObjectState.Changed: {
result = UpdateCalendar(calendar);
break;
}
default:
return(false);
}
return(result);
}
/// <summary>
/// Saves changes of calendar.
/// </summary>
/// <param name="calendar">Calendar dummy.</param>
/// <returns>Success of operation.</returns>
public bool Save(T calendar)
{
if (calendar == null)
{
throw new ArgumentNullException("calendar");
}
StoringObjectState state = GetCalendarState(calendar);
using (DBExecutor dbExecutor = _userConnection.EnsureDBConnection()) {
dbExecutor.StartTransaction();
try {
if (ApplyChange(state, calendar))
{
dbExecutor.CommitTransaction();
return(true);
}
} catch {
dbExecutor.RollbackTransaction();
throw;
}
dbExecutor.RollbackTransaction();
return(false);
}
}
