Check value is not None before inserting into forward index

zopefoundation · Aug 20, 2015 · d1f299a · d1f299a
1 parent 126d950
commit d1f299a
Showing 1 changed file with 7 additions and 6 deletions.
diff --git a/src/zope/index/field/index.py b/src/zope/index/field/index.py
@@ -61,12 +61,13 @@ def index_doc(self, docid, value):
             # unindex doc if present
             self.unindex_doc(docid)
 
-        # Insert into forward index.
-        set = self._fwd_index.get(value)
-        if set is None:
-            set = self.family.IF.TreeSet()
-            self._fwd_index[value] = set
-        set.insert(docid)
+        if value is not None:
+                # Insert into forward index.
+                set = self._fwd_index.get(value)
+                if set is None:
+                    set = self.family.IF.TreeSet()
+                    self._fwd_index[value] = set
+                set.insert(docid)
 
         # increment doc count
         self._num_docs.change(1)