Improving.Highway.Data.Scope

A scoped DataContext implementation for Highway.Data and Entity Framework

The idea for this code comes from http://mehei.me. We were wanting to add scopes to the DbContext, and he had already done the work. He has a great blog post about it here. Managing DbContext the right way with Entity Framework 6: an in-depth guide

I adapted the DbContextScope to work with HighwayData. Since I am often using multiple databases in the same application, I integrated DbContexScope into Highways DomainRepository.

Assuming you have a DomainRepository

private readonly IRepository<ITestDomain> _repository;

##Read Write Scope

  using (var scope = _repository.Scopes.Create())  
  {
      var verse = Map(new Verse(), message.Resource);
      verse.Created = _now;

       _repository.Context.Add(verse);

      var result = new VerseData();
      await scope.SaveChangesAsync((s, c) =>
      {
          result.Id         = verse.Id;
          result.RowVersion = verse.RowVersion;
      });

      return result;
  }

##ReadOnly Scope

    using (_repository.Scopes.CreateReadOnly())
    {
         var data = (await _repository.FindAsync(new GetBooksById(message.Ids)))
           ?.Select(x => Map(new BookData(), x))
           .ToArray();

         return new BookResult
         {
             Books = data
         };
    }