Fix changelog

docs/changelog.rst

@@ -11,7 +11,6 @@ Changes in 0.10.7
 - Dropped Python 3.2 support #1390
 - Fixed the bug where dynamic doc has index inside a dict field #1278
 - Fixed: ListField minus index assignment does not work #1128
-- Fixed not being able to specify `use_db_field=False` on `ListField(EmbeddedDocumentField)` instances
 - Fixed cascade delete mixing among collections #1224
 - Add `signal_kwargs` argument to `Document.save`, `Document.delete` and `BaseQuerySet.insert` to be passed to signals calls #1206
 - Raise `OperationError` when trying to do a `drop_collection` on document with no collection set.
@@ -28,7 +27,7 @@ Changes in 0.10.7
 - Fixed connecting to a list of hosts #1389
 - Fixed a bug where accessing broken references wouldn't raise a DoesNotExist error #1334
 - Fixed not being able to specify use_db_field=False on ListField(EmbeddedDocumentField) instances #1218
-- Improvements to the dictionary fields docs # 1383
+- Improvements to the dictionary fields docs #1383
 
 Changes in 0.10.6
 =================

mongoengine/queryset/base.py

@@ -1271,10 +1271,9 @@ class BaseQuerySet(object):
         :param field: the field to sum over; use dot notation to refer to
             embedded document fields
         """
-        db_field = self._fields_to_dbfields([field]).pop()
         pipeline = [
             {'$match': self._query},
-            {'$group': {'_id': 'sum', 'total': {'$sum': '$' + db_field}}}
+            {'$group': {'_id': 'sum', 'total': {'$sum': '$' + field}}}
         ]
 
         # if we're performing a sum over a list field, we sum up all the
@@ -1301,10 +1300,9 @@ class BaseQuerySet(object):
         :param field: the field to average over; use dot notation to refer to
             embedded document fields
         """
-        db_field = self._fields_to_dbfields([field]).pop()
         pipeline = [
             {'$match': self._query},
-            {'$group': {'_id': 'avg', 'total': {'$avg': '$' + db_field}}}
+            {'$group': {'_id': 'avg', 'total': {'$avg': '$' + field}}}
         ]
 
         # if we're performing an average over a list field, we average out

tests/queryset/queryset.py

@@ -2838,34 +2838,6 @@ class QuerySetTest(unittest.TestCase):
             sum([a for a in ages if a >= 50])
         )
 
-    def test_sum_over_db_field(self):
-        """Ensure that a field mapped to a db field with a different name
-        can be summed over correctly.
-        """
-        class UserVisit(Document):
-            num_visits = IntField(db_field='visits')
-
-        UserVisit.drop_collection()
-
-        UserVisit.objects.create(num_visits=10)
-        UserVisit.objects.create(num_visits=5)
-
-        self.assertEqual(UserVisit.objects.sum('num_visits'), 15)
-
-    def test_average_over_db_field(self):
-        """Ensure that a field mapped to a db field with a different name
-        can have its average computed correctly.
-        """
-        class UserVisit(Document):
-            num_visits = IntField(db_field='visits')
-
-        UserVisit.drop_collection()
-
-        UserVisit.objects.create(num_visits=20)
-        UserVisit.objects.create(num_visits=10)
-
-        self.assertEqual(UserVisit.objects.average('num_visits'), 15)
-
     def test_embedded_average(self):
         class Pay(EmbeddedDocument):
             value = DecimalField()