explain nicety

zopefoundation · Apr 7, 2012 · 00bbe19 · 00bbe19
1 parent 7e3d42f
commit 00bbe19
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/Products/ZCatalog/Catalog.py b/src/Products/ZCatalog/Catalog.py
@@ -903,6 +903,9 @@ def _getSortIndex(self, args):
             if len(sort_indexes) > 2:
                 raise CatalogError('Two sort indexes are supported at max, '
                     'got: %s' %repr(name))
+            if len(sort_indexes) == 1:
+                # be nice and keep the old API intact for single sort_on's
+                return sort_indexes[0]
             return sort_indexes
         return None