new_contents: """
  Middleware to automatically set the schema (namespace).
  
  if request.user.is_superuser, then look for a ?schema=XXX and set the schema to that.
  
  Otherwise, set the schema to the one associated with the logged in user.
  
  
  """
  from models import Schema
  
  class SchemaMiddleware:
      def process_request(self, request):
          if request.user.is_anonymous():
              return None
          if request.user.is_superuser and '__schema' in request.GET:
              request.session['schema'] = request.GET['__schema']
          if request.user.is_superuser and 'schema' in request.session:
              Schema.objects.get(pk=request.session['schema']).activate()
          else:
              request.user.schema.schema.activate()
      
      def process_response(self, request):
          pass
subject: Add middleware for setting the schema when the request comes in.