* Do not try to hash None values

* force conversion into string for Pdata objects (File, Image, OOoDocument, ...).


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@34914 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/mixin/cached_convertable.py

@@ -178,4 +178,6 @@ class CachedConvertableMixin:
               it general or related to caching only ?
     """
     data = self.getData()
-    self._setContentMd5(md5.new(data).hexdigest()) # Reindex is useless
+    if data is not None:
+      data = str(data) # Usefull for Pdata
+      self._setContentMd5(md5.new(data).hexdigest()) # Reindex is useless