Added a special case to the unique validator for null/None

nightkr · Oct 21, 2012 · ee18734 · ee18734
1 parent 820c75b
commit ee18734
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/flask_admin/contrib/sqlamodel/validators.py b/flask_admin/contrib/sqlamodel/validators.py
@@ -25,6 +25,9 @@ def __init__(self, db_session, model, column, message=None):
 
     def __call__(self, form, field):
         try:
+            if field.data is None:  # Most RDMBS treat all nulls as unique
+                return
+
             obj = (self.db_session.query(self.model)
                        .filter(self.column == field.data).one())