internal static void Restore(T entity, NavigationBackupSet backup)
{
if (entity == null || backup == null || backup.Values == null ||
backup.Values.Length == 0 || backup.Values.Length != PropertiesToBackup.Count)
{
return;
}
for (int index = 0; index < PropertiesToBackup.Count; index++)
{
var propInfo = PropertiesToBackup[index];
propInfo.SetValue(entity, backup.Values[index], null);
}
}
protected virtual void DeleteEntity <T>(T entity) where T : class
{
NavigationBackupSet backupSet = null;
try
{
backupSet = NavigationBackup <T> .BackupAndReset(entity);
Context.Write <T>().Attach(entity);
Context.Write <T>().Remove(entity);
Context.SaveChanges();
}
finally
{
NavigationBackup <T> .Restore(entity, backupSet);
}
}
protected virtual void UpdateEntity <T>(T entity) where T : class
{
NavigationBackupSet backupSet = null;
try
{
backupSet = NavigationBackup <T> .BackupAndReset(entity);
Context.Entry(entity).State = EntityState.Modified;
Context.SaveChanges();
Context.Entry(entity).State = EntityState.Detached;
}
finally
{
NavigationBackup <T> .Restore(entity, backupSet);
}
}
