Merge pull request #3147 from jwalgran/jcw/handle-null-multichoice-value

Handle null multichoice value
OpenTreeMap · Jun 15, 2017 · 01a460b · 01a460b
2 parents 92495b7 + c3a8683
commit 01a460b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/opentreemap/treemap/udf.py b/opentreemap/treemap/udf.py
@@ -974,6 +974,8 @@ def _validate(val):
                     raise complaint(
                         '%(fieldname)s must be valid JSON',
                         fieldname=self.name)
+                if values is None:
+                    return None
                 if isinstance(values, basestring):
                     # A single string is valid JSON. Wrap as a list for
                     # consistency