[FIX] read_group cannot aggregate non-stored field

diff --git a/openerp/models.py b/openerp/models.py
index abe36b3..afcdef9 100644 (file)
--- a/openerp/models.py
+++ b/openerp/models.py
@@ -2105,6 +2105,7 @@ class BaseModel(object):
             f for f in fields
             if f not in ('id', 'sequence')
             if f not in groupby_fields
+            if f in self._all_columns
             if self._all_columns[f].column._type in ('integer', 'float')
             if getattr(self._all_columns[f].column, '_classic_write')]