openstack/deb-python-cassandra-driver
Code Issues Proposed changes

Possible fix to PYTHON-785

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This commit is contained in:
bjmb
2017-07-05 11:33:07 -04:00
parent a83f3dd191
commit 366880d9d7
1 changed files with 5 additions and 3 deletions
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8
cassandra/cqlengine/query.py
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@@ -941,6 +941,8 @@ class AbstractQuerySet(object):
"Can't resolve fields {0} in {1}".format(
', '.join(missing_fields), self.model.__name__))
fields = [self.model._columns[field].db_field_name for field in fields]
if action == 'defer':
clone._defer_fields.update(fields)
elif action == 'only':
@@ -1068,18 +1070,18 @@ class ModelQuerySet(AbstractQuerySet):
def _select_fields(self):
if self._defer_fields or self._only_fields:
fields = self.model._columns.keys()
fields = [columns.db_field_name for columns in self.model._columns.values()]
if self._defer_fields:
fields = [f for f in fields if f not in self._defer_fields]
# select the partition keys if all model fields are set defer
if not fields:
fields = self.model._partition_keys
fields = [columns.db_field_name for columns in self.model._partition_keys.values()]
if self._only_fields:
fields = [f for f in fields if f in self._only_fields]
if not fields:
raise QueryException('No fields in select query. Only fields: "{0}", defer fields: "{1}"'.format(
','.join(self._only_fields), ','.join(self._defer_fields)))
return [self.model._columns[f].db_field_name for f in fields]
return fields
return super(ModelQuerySet, self)._select_fields()
def _get_result_constructor(self):