Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

SaveChangesAsync is not working for different contexts

See original GitHub issue

https://github.com/Arch/UnitOfWork/blob/594a381dce2f6c55904967a6ea10b5a92ed0aeb7/src/Microsoft.EntityFrameworkCore.UnitOfWork/UnitOfWork.cs#L155

This SavecCangesAsync method is not convenient for multiple different contexts beacuse of casting issue.

Startup services.AddUnitOfWork<BlogContext, BlogLogContext>();

Service

public class UserService : IUserService
{
    private readonly IUnitOfWork<BlogContext> _blogUnitOfWork;
    private readonly IUnitOfWork<BlogLogContext> _blogLogUnitOfWork;

    public UserService(IUnitOfWork<BlogContext> blogUnitOfWork, IUnitOfWork<BlogLogContext> blogLogUnitOfWork) {
        _blogUnitOfWork = blogUnitOfWork;
        _blogLogUnitOfWork = blogLogUnitOfWork;
    }

    public async Task<bool> DeleteAuthorWithEntireStuff(int id)
    {
        try
        {
            var userRepo = _blogUnitOfWork.GetRepository<User>();
            var postRepo = _blogUnitOfWork.GetRepository<Post>();
            var commentRepo = _blogUnitOfWork.GetRepository<Comment>();

            var logRepo = _blogLogUnitOfWork.GetRepository<Log>();

            var postList = postRepo.GetAll().Where(p => p.AuthorId == id).ToList();
            var commentList = commentRepo.GetAll().Where(c => c.UserId == id).ToList();

            userRepo.Delete(id);
            commentRepo.Delete(commentList);
            postRepo.Delete(postList);

            logRepo.Create(new Log
            {
                Message = $"All stuff of userId:{ id } has been deleted",
                Level = "Information",
                MessageTemplate = "Information",
                TimeStamp = DateTime.UtcNow.ToString(),
                Exception = null,
                LogEvent = null,
                Properties = null
            });

            // or await vice versa
            return await _blogUnitOfWork.SaveChangesAsync(_blogLogUnitOfWork)!=0;

        }
        catch (Exception)
        {
            throw;
        }
    }
}

UnitOfWork

foreach (var item in unitOfWorks)
                    {
                        var uow = item as UnitOfWork<DbContext>;
                        uow.Context.Database.UseTransaction(tran.GetDbTransaction());
                        count += await uow.SaveChangesAsync();
                    }

Here when I call SaveChangesAsync in UnitOfWork<BlogContext>, as TContext is BlogContext casting from BlogContext to BlogLogContext is not available, also from DbContext to BlogLogContext is not available as well.