.NET Core Web Api Loading Nested Entities

Question

I have a db model that looks like:

    public CallTrackers()
    {
        CallTrackerCallerTelns = new HashSet<CallTrackerCallerTelns>();
        CallTrackerClients = new HashSet<CallTrackerClients>();
        CallTrackerFlwups = new HashSet<CallTrackerFlwups>();
        CallTrackerHistory = new HashSet<CallTrackerHistory>();
    }

With my GetAll() I am loading everything fine except for CallTrackerClients has 3 nested objects that I can't retrieve:

    public CallTrackerClients()
    {
        CallTrackerClientAdvice = new HashSet<CallTrackerClientAdvice>();
        CallTrackerClientOffences = new HashSet<CallTrackerClientOffences>();
        CallTrackerClientSureties = new HashSet<CallTrackerClientSureties>();
    }

I am trying:

    [HttpGet]
    public IEnumerable<CallTrackers> GetAll()
    {
        return _context.CallTrackers
            .Include(log => log.CallTrackerClients)
                .ThenInclude(c => c.CallTrackerClientAdvice)
            .Include(log => log.CallTrackerCallerTelns)
            .Include(log => log.CallTrackerFlwups)
            .Include(log => log.CallTrackerHistory)
            .ToList();
    }

The above works but I need to get the Sureties and Offences as well. When I try .ThenInclude(c => c.CallTrackerClientOffences) I get some 'does not contain definition' error.

Any ideas how to get the two remaining collections that are part of CallTrackerClients?

Answer 1

You always have to start from the parent entity.

    return _context.CallTrackers
        .Include(log => log.CallTrackerClients)
            .ThenInclude(c => c.CallTrackerClientAdvice)
        // this
        .Include(log => log.CallTrackerClients)
            .ThenInclude(c => c.CallTrackerClientOffences)
        // and this
        .Include(log => log.CallTrackerClients)
            .ThenInclude(c => c.CallTrackerClientSureties)
        .Include(log => log.CallTrackerCallerTelns)
        .Include(log => log.CallTrackerFlwups)
        .Include(log => log.CallTrackerHistory)
        .ToList();