Set cache_ok=True for CIText type

Fixes mahmoudimus#25, an SAWarning when performing queries with CIText columns
evrys · Jun 1, 2022 · 02e37ed · 02e37ed
1 parent ac2215c
commit 02e37ed
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/citext/__init__.py b/citext/__init__.py
@@ -10,6 +10,10 @@
 
 
 class CIText(types.Concatenable, types.UserDefinedType):
+    # Tell SQLAlchemy that CIText strings are safe to use as cache keys (like regular strings)
+    # https://docs.sqlalchemy.org/en/14/core/custom_types.html#sqlalchemy.types.TypeDecorator.cache_ok
+    cache_ok = True
+
     # This is copied from the `literal_processor` of sqlalchemy's own `String`
     # type.
     def literal_processor(self, dialect):