GoogleCloudPlatform · theacodes · Apr 19, 2016 · Apr 19, 2016
diff --git a/appengine/ndb/entities/snippets.py b/appengine/ndb/entities/snippets.py
@@ -283,3 +283,12 @@ def construct_keys_from_range_of_reserved_ids(first, last):
 def reserve_model_ids_up_to(N):
     first, last = MyModel.allocate_ids(max=N)
     return first, last
+
+
+class ModelWithUser(ndb.Model):
+    user_id = ndb.StringProperty()
+    color = ndb.StringProperty()
+
+    @classmethod
+    def get_by_user(cls, user):
+        return cls.query().filter(cls.user_id == user.user_id()).get()
diff --git a/appengine/ndb/entities/snippets_test.py b/appengine/ndb/entities/snippets_test.py
@@ -14,6 +14,7 @@
 
 import inspect
 
+from google.appengine.api import users
 from google.appengine.ext import ndb
 from google.appengine.ext.ndb.google_imports import datastore_errors
 import pytest
@@ -227,3 +228,10 @@ def test_construct_keys_from_range_of_reserved_ids(client):
 def test_reserve_model_ids_up_to(client):
     first, last = snippets.reserve_model_ids_up_to(5)
     assert last - first >= 4
+
+
+def test_model_with_user(client):
+    user = users.User(email='[email protected]', _user_id='123')
+    item = snippets.ModelWithUser(user_id=user.user_id())
+    item.put()
+    assert snippets.ModelWithUser.get_by_user(user) == item
diff --git a/appengine/users/app.yaml b/appengine/users/app.yaml
@@ -0,0 +1,7 @@
+runtime: python27
+threadsafe: yes
+api_version: 1
+
+handlers:
+- url: .*
+  script: main.app
diff --git a/appengine/users/main.py b/appengine/users/main.py
@@ -0,0 +1,60 @@
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Sample Google App Engine application that demonstrates using the Users API
+
+For more information about App Engine, see README.md under /appengine.
+"""
+
+# [START all]
+
+from google.appengine.api import users
+import webapp2
+
+
+class MainPage(webapp2.RequestHandler):
+    def get(self):
+        user = users.get_current_user()
+        if user:
+            nickname = user.nickname()
+            logout_url = users.create_logout_url('/')
+            greeting = 'Welcome, {}! (<a href="{}">sign out</a>)'.format(
+                nickname, logout_url)
+        else:
+            login_url = users.create_login_url('/')
+            greeting = '<a href="{}">Sign in</a>'.format(login_url)
+
+        self.response.write(
+            '<html><body>{}</body></html>'.format(greeting))
+
+
+class AdminPage(webapp2.RequestHandler):
+    def get(self):
+        user = users.get_current_user()
+        if user:
+            if users.is_current_user_admin():
+                self.response.write('You are an administrator.')
+            else:
+                self.response.write('You are not an administrator.')
+        else:
+            self.response.write('You are not logged in.')
+
+
+app = webapp2.WSGIApplication([
+    ('/', MainPage),
+    ('/admin', AdminPage)
+], debug=True)
+
+# [END all]
diff --git a/appengine/users/main_test.py b/appengine/users/main_test.py
@@ -0,0 +1,43 @@
+# Copyright 2016 Google Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import main
+import webtest
+
+
+def test_index(testbed, login):
+    app = webtest.TestApp(main.app)
+
+    response = app.get('/')
+    assert 'Login' in response.body
+
+    login()
+    response = app.get('/')
+    assert 'Logout' in response.body
+    assert '[email protected]' in response.body
+
+
+def test_admin(testbed, login):
+    app = webtest.TestApp(main.app)
+
+    response = app.get('/admin')
+    assert 'You are not logged in' in response.body
+
+    login()
+    response = app.get('/admin')
+    assert 'You are not an administrator' in response.body
+
+    login(is_admin=True)
+    response = app.get('/admin')
+    assert 'You are an administrator' in response.body