add faker helper method

pairent_backend/pairent_app/factories.py

@@ -135,3 +135,13 @@ class UserFactory(factory.django.DjangoModelFactory):
     openid_addr = OpenID_Address();
     openid_id = UUID();
     photo_provider = Random(0,0,0, ['VVSU', 'GRAVATAR']);
+
+def fake(size: int):
+    """
+        This method is designed to be conveniently used within a
+        django shell, like this:
+        >>> from pairent_app.factories import fake;
+        >>> fake(42);
+    """
+    ApartmentFactory.create_batch(size);
+    UserFactory.create_batch(size);