public async Task<BlResult<NodeModel>> SaveAsync(NodeModel nodeModel)
{
BlResult<NodeModel> blResult = new BlResult<NodeModel>();
try
{
if (nodeModel is null)
{
throw new ArgumentNullException(nameof(NodeModel));
}
EnsureTransaction();
var fetchedEntity = await _nodeRepository.GetByIdAsync(nodeModel.Id);
fetchedEntity = _mapper.Map(nodeModel, fetchedEntity);
var attributesToDelete = fetchedEntity.NodeAttributes.
Where(x => !nodeModel.NodeAttributes.Any(y => y.Id == x.Id)).ToList();
var attributesToAdd = nodeModel.NodeAttributes.
Where(x => !fetchedEntity.NodeAttributes.Any(y => y.Id == x.Id)).Select(z => z.Id);
if (nodeModel.Id > 0)
{
_nodeRepository.Edit(fetchedEntity);
}
else
{
fetchedEntity = _nodeRepository.Add(fetchedEntity);
}
await SaveChangesAsync(false);
if (attributesToDelete != null && attributesToDelete.Count() > 0)
{
foreach (var item in attributesToDelete)
{
fetchedEntity.NodeAttributes.Remove(item);
}
await SaveChangesAsync(false);
}
if (attributesToAdd != null && attributesToAdd.Count() > 0)
{
await _nodeRepository.AddAttribuets(fetchedEntity, attributesToAdd);
await SaveChangesAsync(false);
}
await SaveChangesAsync();
blResult.Success(_mapper.Map<NodeModel>(fetchedEntity));
}
catch (ArgumentNullException)
{
blResult.Fail(BLErrorCodeTypeEnum.ArgumentIsNull);
}
catch (Exception ex)
{
blResult.Fail(BLErrorCodeTypeEnum.Unknown, ex.Message, ex);
}
return blResult;
}