Base solution for your next web application
Starts in:
01 DAYS
01 HRS
01 MIN
01 SEC
Open Closed

Master / slave is storing a negative value in foreign key #4645


User avatar
0
Homam created

Hi,

I am trying to save two records together (parent / child) in one transaction. However, the second record foreign key value is not getting the generated Id of parent and has a negative value.

My code:

public async Task<FieldDto> Create(Guid listId, CreateFieldInput input)
        {
            await CheckParentIfExists(listId);
            await CheckIfAlreadyExists(listId, input.Name);

            using (var uow = _unitOfWorkManager.Begin(TransactionScopeOption.RequiresNew))
            {
                var list = _listRepository.Get(listId);
                var record = ObjectMapper.Map<Field>(input);
                record.ListId = listId;

                var insertedRecord = await _repository.InsertAsync(record);

                if (input.LinkedListId.HasValue)
                {
                    // If a link is created between two entities,
                    // a new field is automatically added to the other entity
                    Field slaveField = new Field
                    {
                        ListId = input.LinkedListId.Value,
                        MasterFieldId = insertedRecord.Id,
                        DataType = (int)FieldDataType.LinkList,
                        IsPrimary = false,
                        IsVisible = true,
                        IsRequired = false,
                        Name = list.Name,
                        Description = list.Name,
                    };

                   // HERE THE insertedRecord.Id, IS A WRONG NEGATIVE VALUE IN THE DATABASE  :roll: 
                    await _repository.InsertAsync(slaveField);
                }

                await uow.CompleteAsync();

                return ObjectMapper.Map<FieldDto>(insertedRecord);
            }
        }

How can I fix it?


1 Answer(s)
  • User Avatar
    0
    aaron created
    Support Team

    You need a navigation property:

    MasterFieldId = insertedRecord.Id, // Doesn't work in a single transaction
    MasterField   = insertedRecord,    // Works