Added a Django storage backend.

- New GridFSStorage storage backend
- New FileDocument document for storing files in GridFS
- Whitespace cleaned up in various files

tests/connnection.py

@@ -0,0 +1,44 @@
+import unittest
+import datetime
+import pymongo
+
+import mongoengine.connection
+from mongoengine import *
+from mongoengine.connection import _get_db, _get_connection
+
+
+class ConnectionTest(unittest.TestCase):
+
+    def tearDown(self):
+        mongoengine.connection._connection_settings = {}
+        mongoengine.connection._connections = {}
+        mongoengine.connection._dbs = {}
+    
+    def test_connect(self):
+        """Ensure that the connect() method works properly.
+        """
+        connect('mongoenginetest')
+
+        conn = _get_connection()
+        self.assertTrue(isinstance(conn, pymongo.connection.Connection))
+
+        db = _get_db()
+        self.assertTrue(isinstance(db, pymongo.database.Database))
+        self.assertEqual(db.name, 'mongoenginetest')
+
+    def test_register_connection(self):
+        """Ensure that connections with different aliases may be registered.
+        """
+        register_connection('testdb', 'mongoenginetest2')
+
+        self.assertRaises(ConnectionError, _get_connection)
+        conn = _get_connection('testdb')
+        self.assertTrue(isinstance(conn, pymongo.connection.Connection))
+
+        db = _get_db('testdb')
+        self.assertTrue(isinstance(db, pymongo.database.Database))
+        self.assertEqual(db.name, 'mongoenginetest2')
+
+
+if __name__ == '__main__':
+    unittest.main()

tests/fields.py

@@ -693,7 +693,7 @@ class FieldTest(unittest.TestCase):
         testfile.name = "Hello, World!"
         testfile.file.put('Hello, World!')
         testfile.save()
-        
+
         # Second instance
         testfiledupe = TestFile()
         data = testfiledupe.file.read() # Should be None