1👍
✅
I found the solution.
Literally since Conversation_Deal has a foreignkey to DealStatus class. It needs to know about it during serialization.
all = list(Conversation_Deal.objects.filter(conversation_id__in=call_id)) + list(DealStatus.objects.all())
return HttpResponse(simplejson.dumps(to_json), mimetype='application/json')
Hope this helps somebody else.
Source:stackexchange.com