Umesh Soni <u.soni@cs.ucl.ac.uk> wrote:

Hi I am trying to use ZTopics to create a visual hierarchy. I've got ZTopics installed ok but I am having problems with using them.

If I create a top level ZTopic all is well and the ztopic will filter my catalog fine. However, if I try to create a hierarchy -even if only one level deep, I get the following error.

Error Type: AttributeError Error Value: Vocabulary

Traceback (innermost last): File /usr/local/Zope-2.2.4b1-src/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/local/Zope-2.2.4b1-src/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/Zope-2.2.4b1-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File /usr/local/Zope-2.2.4b1-src/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/Zope-2.2.4b1-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /usr/local/Zope-2.2.4b1-src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: index_html) File /usr/local/Zope-2.2.4b1-src/lib/python/OFS/DTMLMethod.py, line 172, in __call__ (Object: index_html) File /usr/local/Zope-2.2.4b1-src/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: index_html) File /usr/local/Zope-2.2.4b1-src/lib/python/Products/ZTopic/Topic.py, line 180, in contents (Object: Traversable) File /usr/local/Zope-2.2.4b1-src/lib/python/Products/ZTopic/Topic.py, line 228, in _contentsSet (Object: Traversable) File /usr/local/Zope-2.2.4b1-src/lib/python/SearchIndex/UnTextIndex.py, line 401, in _apply_index File /usr/local/Zope-2.2.4b1-src/lib/python/SearchIndex/UnTextIndex.py, line 476, in query File /usr/local/Zope-2.2.4b1-src/lib/python/SearchIndex/UnTextIndex.py, line 196, in getLexicon AttributeError: (see above)

I haven't a clue if the problem is with ZTopics or the lexicon stuff within zope.

Anyone know what's going on here?

Chris McDonough <chrism@digicool.com> responded:

From what I remember, the TextIndex code wants to acquire the catalog's Vocabulary subobject. If you created your catalog without a Vocabulary (I think this is an option during the instantiation of a catalog), this can occur. This is arguably a bug. The vocabulary object should probably not be acquired. Do you think you can submit this to the "Collector" at Zope.org (http://classic.zope.org:8080/Collector)?

Umesh replied:

The catalog in question is the portal_catalog from the PTK which has an accompaning Vocabulary object.

I will do as you requested and submit this to the Collector.

umesh

btw. I had to apply the following patch to ZTopic to rectify a mis-behaving user interface.

--- topicEdit.dtml.old Wed Nov 29 10:49:53 2000 +++ topicEdit.dtml Wed Nov 29 09:16:02 2000 @@ -35,8 +35,8 @@

<TR> <TD align="left" COLSPAN="2"> - <input type="submit" name="../editSearchForm:method" value="Edit"> - <input type="submit" name="../deleteSearch:method" value="Delete"> + <input type="submit" name="editSearchForm:method" value="Edit"> + <input type="submit" name="deleteSearch:method" value="Delete"> </TD> </TR> </table>

The 'portal_catalog' object is actually a wrapper around a standard ZCatalog instance. I would look at 'ZTopics.Topic._contentsSet()' to see what it is trying to do with the catalog. I would log also log this as a PTK issue: http://www.zope.org/Products/PTK/Tracker rather than in the Collector (I don't believe it is a Zope issue, per se). Tres. -- =============================================================== Tres Seaver tseaver@digicool.com Digital Creations "Zope Dealers" http://www.zope.org