Add script that changes Markdown links to use identifiers

[zzz-pokedex.git] / pokedex / db / markdown.py

diff --git a/pokedex/db/markdown.py b/pokedex/db/markdown.py
index 09f8067..c82ce68 100644 (file)
--- a/pokedex/db/markdown.py
+++ b/pokedex/db/markdown.py
@@ -112,6 +112,9 @@ class MarkdownColumn(sqlalchemy.types.TypeDecorator):
     impl = sqlalchemy.types.Unicode
 
     def process_bind_param(self, value, dialect):
+        if value is None:
+            return None
+
         if not isinstance(value, basestring):
             # Can't assign, e.g., MarkdownString objects yet
             raise NotImplementedError
@@ -119,4 +122,7 @@ class MarkdownColumn(sqlalchemy.types.TypeDecorator):
         return unicode(value)
 
     def process_result_value(self, value, dialect):
+        if value is None:
+            return None
+
         return MarkdownString(value)