Add very basic API views to expose customer, user tables

just so we can populate an "index grid table" in the UI, for now..

tailbone/api/users.py

@@ -0,0 +1,48 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2018 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Tailbone Web API - User Views
+"""
+
+from __future__ import unicode_literals, absolute_import
+
+import six
+
+from rattail.db import model
+
+from tailbone.api import APIMasterView
+
+
+class UserView(APIMasterView):
+
+    model_class = model.User
+
+    def normalize(self, user):
+        return {
+            'username': user.username,
+            'person': six.text_type(user.person or ''),
+        }
+
+
+def includeme(config):
+    UserView.defaults(config)