public async Task Delete(string id)
{
int _id = int.Parse(id);
Problem item = await _context.Problems.FindAsync(_id);
if (item != null)
{
ProblemProvider prov = new ProblemProvider(_workspace, _context, item);
await prov.Samples.Clear();
await prov.Tests.Clear();
{
int[] submis = (from x in _context.Submissions where x.ProblemId == item.Id select x.Id).ToArray();
foreach (int s in submis)
{
await _workspace.Submissions.Delete(s.ToString());
}
}
_context.Problems.Remove(item);
await _context.SaveChangesAsync();
}
}
public async Task <IProblemProvider> Create(ProblemMetadata metadata)
{
Problem empty = new Problem();
_context.Add(empty);
await _context.SaveChangesAsync();
ProblemProvider res = new ProblemProvider(_workspace, _context, empty);
await res.SetMetadata(metadata);
return(res);
}