queryset-refactor: Fixed the case of calling update() on a model manager.

git-svn-id: http://code.djangoproject.com/svn/django/branches/queryset-refactor@7146 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/manager.py

@@ -102,7 +102,7 @@ class Manager(object):
         return self.get_query_set().values(*args, **kwargs)
 
     def update(self, *args, **kwargs):
-        return self.get_query_set().updated(*args, **kwargs)
+        return self.get_query_set().update(*args, **kwargs)
 
     def _insert(self, *args, **kwargs):
         return self.get_query_set()._insert(*args, **kwargs)

django/db/models/sql/query.py

@@ -1240,7 +1240,8 @@ class UpdateQuery(Query):
                 values.append('%s = NULL' % qn(name))
         result.append(', '.join(values))
         where, params = self.where.as_sql()
-        result.append('WHERE %s' % where)
+        if where:
+            result.append('WHERE %s' % where)
         return ' '.join(result), tuple(update_params + params)
 
     def clear_related(self, related_field, pk_list):

tests/modeltests/update/models.py

@@ -56,5 +56,12 @@ Multiple fields can be updated at once
 >>> d.value, d.another_value
 (u'fruit', u'peaches')
 
+In the rare case you want to update every instance of a model, update() is also
+a manager method.
+
+>>> DataPoint.objects.update(value='thing')
+>>> DataPoint.objects.values('value').distinct()
+[{'value': u'thing'}]
+
 """
 }