public SystemDeleteResult Delete(int id)
{
var system = _itSystemRepository.GetSystem(id);
if (system == null)
{
return(SystemDeleteResult.NotFound);
}
if (_authorizationContext.AllowDelete(system) == false)
{
return(SystemDeleteResult.Forbidden);
}
if (system.Usages.Any())
{
return(SystemDeleteResult.InUse);
}
if (system.Children.Any())
{
return(SystemDeleteResult.HasChildren);
}
if (system.ItInterfaceExhibits.Any())
{
return(SystemDeleteResult.HasInterfaceExhibits);
}
using (var transaction = _transactionManager.Begin(IsolationLevel.Serializable))
{
try
{
var deleteReferenceResult = _referenceService.DeleteBySystemId(system.Id);
if (deleteReferenceResult.Ok == false)
{
_logger.Error($"Failed to delete external references of it system with id: {system.Id}. Service returned a {deleteReferenceResult.Error}");
transaction.Rollback();
return(SystemDeleteResult.UnknownError);
}
_itSystemRepository.DeleteSystem(system);
transaction.Commit();
return(SystemDeleteResult.Ok);
}
catch (Exception e)
{
_logger.Error(e, $"Failed to delete it system with id: {system.Id}");
transaction.Rollback();
return(SystemDeleteResult.UnknownError);
}
}
}
