Re: [Zope-dev] Keyword Indexes causing Keyerrors
Here's what was causing my KeyErrors, and how I solved it, and why I think KeywordIndexes broke. I have a keyword index on the "categories" property of my CatalogAware object. "categories" is a list. def manage_removeItems(self, ids=[]): """ Remove listed items from this category """ for id in ids: ob = getattr(self.Items, id) categories = ob.categories # -- this is the problem categories.remove(self.uid) ob.manage_changeProperties(categories=categories) ob.reindex_object() I solved the problem by switching the problem line to say "categories = ob.categories[:]". What does this mean? I was mutating the same list that was attached to the object. Doing this caused the Keyword Index to break. I assume the reason then is that the index somewhere stored a reference to the "categories" property, not a copy. This means that when I mutated ob.categories, I was also mutating the contents of the index, causing it to get screwed up. The solution would be that keyword indexes store a *copy* of the property they are indexing, not a reference to it. If I'm not mistaken, that means changing line 42 in UnKeywordIndex.py (2.2.4 version) from: unindex[i] = kws to: unindex[i] = kws[:] Although use of deepcopy may be a better idea? -- Email: itamar(at)shtull-trauring.org Web: http://itamarst.org ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Keyword Indexes causing Keyerrors
On 12/20/00 11:33 AM, "Itamar Shtull-Trauring" [EMAIL PROTECTED] wrote: I'm getting tons and tons of keyerrors when making changes to a catalogaware object's keyword index and then reindex_object() it. Alternatively, the Catalog doesn't get updated at all. Is there any way to prevent this from happening, other than upgrading to 2.3? Are you getting KeyErrors or are you getting log messages complaining about keyts not existing? Chris -- | Christopher Petrilli Digital Creations | [EMAIL PROTECTED]Where Zope comes from ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Keyword Indexes causing Keyerrors
On 12/20/00 11:52 AM, "Itamar Shtull-Trauring" [EMAIL PROTECTED] wrote: KeyErrors - the logging says: 2000-12-20T16:33:00 ERROR(200) UnKeywordIndex unindex_object could not remove 3 from set This is not the "KeyError" in the sense that it's not propogated up to the top level, but it is a lookup error lower down. I will look into this, but it seems to continue to work correctly, even with the log messages (these are all due to trying to make sure things get unindexed correctly before reindexing). Are you getting incorrect data after reindexing the object? Chris -- | Christopher Petrilli Digital Creations | [EMAIL PROTECTED]Where Zope comes from ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] keyword indexes
Josh Zeidner wrote: Hi, Currently I am wrestling with "keyword" indexes in ZCatalogs. How do I query the ZCatalog for all records of objects indexed on a particular keyword. For instance if my index is named MediaKeyword ive tried: dtml-in "Catalog.searchResults( MediaKeywords = ['ouch'] )" That should work. this has completely unpredictable results. dtml-in "Catalog.searchResults( MediaKeywords in ['ouch'] )" this returns all indexed objects! That won't work. The python MediaKeywords in ['ouch'] will be evaluated first, and will give a calue of 0 or 1. If MediaKeywords is a list, then it will always give 0, because there is only one item in ['ouch'], and that is the string 'ouch'. What am I doing wrong? Is there a special ZCatalog function for querying keyword indexes? I need some insight into this problem. Are you sure that the keywords are being indexed in your catalog? A good trick is to index the keyword attribute, and also store it as metadata. That way, you can look through your search results at the keywords the Catalog thinks you have. Also, check that you declared MediaKeywords as a keyword index, and that the MediaKeywords attribute in your objects is (or returns) a sequence type such as a tuple or a list. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] keyword indexes
Josh Zeidner writes: dtml-in "Catalog.searchResults( MediaKeywords = ['ouch'] )" This should work. Alternatively: "MediaKeywords = 'ouch'". dtml-in "Catalog.searchResults( MediaKeywords in ['ouch'] )" This calls the catalog without any keyword arguments and with a single positional parameter 0. The catalog interprets this as "no search criteria" and returns all objects. Dieter ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] keyword indexes
Hi, Currently I am wrestling with "keyword" indexes in ZCatalogs. How do I query the ZCatalog for all records of objects indexed on a particular keyword. For instance if my index is named MediaKeyword ive tried: dtml-in "Catalog.searchResults( MediaKeywords = ['ouch'] )" this has completely unpredictable results. dtml-in "Catalog.searchResults( MediaKeywords in ['ouch'] )" this returns all indexed objects! What am I doing wrong? Is there a special ZCatalog function for querying keyword indexes? I need some insight into this problem. Thanks! Josh Zeidner ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
