Merge pull request #131 from buckensl/master

do not ignore 'False' connection settings (fixes #127)

Author: itsnauman

AUTHORS

@@ -25,4 +25,5 @@ that much better:
 * Marcus Carlsson - https://github.com/xintron
 * RealJTG - https://github.com/RealJTG
 * Peter D. Gray
-* Massimo Santini
+* Massimo Santini
+* Len Buckens - https://github.com/buckensl

flask_mongoengine/__init__.py

@@ -31,7 +31,7 @@ def _create_connection(conn_settings):
             connections[conn.get('alias')] = _create_connection(conn)
         return connections
 
-    conn = dict([(k.lower(), v) for k, v in conn_settings.items() if v])
+    conn = {k.lower(): v for k, v in conn_settings.items() if v is not None}
 
     if 'replicaset' in conn:
         conn['replicaSet'] = conn.pop('replicaset')

tests/test_json_app.py

@@ -74,6 +74,17 @@ def test_connection_kwargs(self):
         db.init_app(self.app)
         self.assertFalse(db.connection.tz_aware)
 
+    def test_connection_kwargs_with_false_values(self):
+        self.app.config['MONGODB_SETTINGS'] = {
+            'DB': 'testing',
+            'alias': 'test',
+            'use_greenlets': False
+        }
+        self.app.config['TESTING'] = True
+        db = MongoEngine()
+        db.init_app(self.app)
+        self.assertFalse(db.connection.use_greenlets)
+
     def test_with_id(self):
         c = self.app.test_client()
         resp = c.get('/show/38783728378090/')