Made format_undertitle() Jinja filter None-safe

2016-09-22 10:33:51 +02:00
parent 7f9f89853d
commit cd8707207b
1 changed files with 4 additions and 0 deletions
--- a/pillar/web/jinja.py
+++ b/pillar/web/jinja.py
@@ -22,6 +22,10 @@ def format_undertitle(s):
    Replaces underscores with spaces, and then applies Jinja2's own title filter.
    """

+    # Just keep empty strings and Nones as they are.
+    if not s:
+        return s
+
    return jinja2.filters.do_title(s.replace('_', ' '))