public async Task <bool> Link(IImmutableSet <string> userIds)
{
List <LinkedAccount> linkedAccountEntries = await _collection
// .Find(l => l.UserIds.Intersect(userIds).Any())
.Find(Builders <LinkedAccount> .Filter.AnyIn(l => l.UserIds, userIds))
.ToListAsync();
ImmutableHashSet <string> existingUserIds = linkedAccountEntries
.SelectMany(l => l.UserIds)
.ToImmutableHashSet();
ImmutableHashSet <string> allUserIds = existingUserIds.Union(userIds);
if (existingUserIds.Count == allUserIds.Count)
{
return(false); // already marked as linked
}
// don't bother patching existing documents, just delete all old ones and make a new one
await _collection.InsertOneAsync(new LinkedAccount(string.Empty, allUserIds.ToHashSet()));
foreach ((string id, _) in linkedAccountEntries)
{
await _collection.DeleteOneAsync(l => l.Id == id);
}
return(true);
}
public DataNode Write(ISerializationManager serializationManager, ImmutableHashSet <T> value,
bool alwaysWrite = false,
ISerializationContext?context = null)
{
return(Write(serializationManager, value.ToHashSet(), alwaysWrite, context));
}
