[Zope-dev] Re: [Zope] CatalogAware
Excellent, thanks so much Toby. Maybe some feedback will come in... - C Toby Dickenson wrote: Chris McDonough [EMAIL PROTECTED] wrote: I actually think this about sums it up. If you have time to look at it Toby, it would be much appreciated. I don't think it's a very complicated set of fixes, its just not on the radar at the moment, and might require some thought about backwards-compatibility. Not a patch, but Ive fixed all three known CatalogAware problems in a separate product; a new base class that derives from CatalogAware: http://www.zope.org/Members/htrd/BetterCatalogAware/ The techniques used in this product have been thoroughly stressed in several other production systems, but this is the first time they have been collected together in one place so bugs are possible. That makes CatalogAware much saner and will produce less bloat. Actually, maybe I should just go make that change in the trunk and the 2.4 branch, although I'm a little afraid of what (if anything) it will break for everybody. To be honest, I really don't have much time to spend thinking about this, and my fears are probably just FUD. Im not sure how many people are using CatalogAware; I think many serious users have been scared off by the problem reports in the list archives. IMO fixing this may be worth a little breakage. Toby Dickenson [EMAIL PROTECTED] ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev ) ___ 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] Re: [Zope] CatalogAware
I actually think this about sums it up. If you have time to look at it Toby, it would be much appreciated. I don't think it's a very complicated set of fixes, its just not on the radar at the moment, and might require some thought about backwards-compatibility. - C Toby Dickenson wrote: On Tue, 26 Jun 2001 09:31:02 -0400, Chris McDonough [EMAIL PROTECTED] wrote: Right.. if you don't use CatalogAware, however, and don't unindex before reindexing an object, you should see a huge bloat savings, because the only things which are supposed to be updated then are indexes and metadata which have data that has changed. CatalogAware has been blamed for alot of problems. Its three weaknesses I am aware of are: a. Unindexing before ReIndexing causes bloat by defeating the catalogs change-detection tricks. b. It uses URLs not paths, and so doesnt play right with virtual hosting c. It uses the same hooks as ObjectManager to detect that it has been added/removed from a container ObjectManager, and therefore the two cant be easily mixed together as base classes. All of these are fixable, and I feel a patch coming on. Are there some deeper problems I am not aware of? Toby Dickenson [EMAIL PROTECTED] ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev ) ___ 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] Re: [Zope] CatalogAware
Subject: [Zope] CatalogAware CatalogAware has been blamed for alot of problems. Its three weaknesses I am aware of are: snip b. It uses URLs not paths, and so doesnt play right with virtual hosting * I ran into this problem using VHMonster with my EventFolder product and found a work-around, just for anyone who might be struggling with this See http://www.netkook.com/Members/jeff/ef/faq/document_view#vhost This article discusses how to use _vh_ with VHM. (boy does that sound cryptic...) Jeff Sasmor [EMAIL PROTECTED] www.netkook.com ___ 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] Re: [Zope] CatalogAware does not work?
John Morton wrote: Why couldn't CatalogAware do this? If nobody has a good reason, I might push forth a patch to CatalogAware to implement this. A simple case for the present flexibility is that you don't need to reindex for every property change, just the ones that are actually indexed. Agreed, CatalogAware should ideally check this to make sure reindexing is necessary. A more complicated case would be an operation that changes several instances at once. It's expensive to reindex for every instance you change, so it would be useful to pass a flag to the ZClass's change method to tell it not to do a reindex, and reindex the lot once the operation over all the instances is completed. I have actually done this for a Product I am developing. It allows you to accumulate property changes and reindex only once. Supposedly, the Catalog is more efficient in this regard anyway as of 2.3. I guess that you could build this kind of functionality into CatalogAware, but I'm generally in favour of having flexible and optional rather than automatic reindexing, and just adding documentation to discuss some of the different cases. You could hack Property Sheet Interface to add a call to reindex if the ZClass is catalog aware. I would not want to make PropertyManager directly aware of CatalogAware if I could get away with it. Perhaps the way to deal with this is to have PropertyManager call a hookable method afterChangeProperties or some such, passing a list of properties changed. Then your ZClass could simply call reindex_object if it feels it is necessary. That would give full disclosure and behavior control back to your specific implementation. But it would simultaneously cover property changes made in the management screens and everywhere else. I am moving this discussion over to zope-dev to see if anyone else there has any ideas. -- | Casey Duncan | Kaivo, Inc. | [EMAIL PROTECTED] `-- ___ 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] Catalogaware ZClass
Hello,
usually I'm more patient but this time it's a very
important feature(I have to build an archive).
That's my question from yesterday:
---
I try to delete a Catalogware ZClass with subobjects that are
also ZClasses.
That's my method to delete a Class:
dtml-in "objectValues('ZClassPage')"
dtml-let x=sequence-item
dtml- if "in_work"
dtml-call "manage_delObjects([x.id])"
/dtml-if
/dtml-let
/dtml-in
But Zope answers:
An exception occurred in a DTML method or document.
Error type: BadRequest
Error value: 980785769 does not exist
But '980785769' EXISTS in the management-interface !! :-((
---
It would be very nice if someone could give me a hint.Thanks!
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[Zope] Catalogaware ZCLass and deleting
Hello,
I try to delete a Catalogware ZClass with subobjects that are
also ZClasses.
That's my method to delete a Class:
--
dtml-in "objectValues('ZClassPage')"
dtml-let x=sequence-item
dtml- if "in_work"
dtml-call "manage_delObjects([x.id])"
/dtml-if
/dtml-let
/dtml-in
But Zope answers:
An exception occurred in a DTML method or document.
Error type: BadRequest
Error value: 980785769 does not exist
But '980785769' EXISTS in the management-interface !! :-((
Thanks!
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[Zope] CatalogAware
Hi ! I useobjects from a class which inherits from CatalogAware. The objects index themselves into the ZCatalog but I get strange results when I try to search in this ZCatalog... The problem is solved after reindexing the object via the reindex_object() method but this works only for manage_edit ... I can't index my object properly in the manage_add method (I get the same problem) Newlyindexed objects seem to be added to the ZCatalog with the indexes from the previous cataloged object (or something like that) Is there a bug I should be 'awared' to or am I doing something the wrong way ? SY
[Zope] CatalogAware Problems?
Yapo Sébastien wrote: Is there a bug I should be 'awared' to or am I doing something the wrong way ? Maybe if you said what the bug was and included a traceback, more people would be able to help? Also, posting in HTML means a lot of people can't read what you post... cheers, Chris ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] CatalogAware Problems?
Chris Withers wrote: Yapo Sébastien wrote: Is there a bug I should be 'awared' to or am I doing something the wrong way ? Maybe if you said what the bug was and included a traceback, more people would be able to help? Also, posting in HTML means a lot of people can't read what you post... And of those of us who can, many won't. -- Do not meddle in the affairs of sysadmins, for they are easy to annoy, and have the root password. ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] CatalogAware
Yapo =?ISO-8859-1?Q?S=E9bastien?= writes: I use objects from a class which inherits from CatalogAware. The objects index themselves into the ZCatalog but I get strange results = when I try to search in this ZCatalog... The problem is solved after = reindexing the object via the reindex_object() method but this works = only for manage_edit ... I can't index my object properly in the = manage_add method (I get the same problem) This is a bug, I recently found in "GlobbingLexicon". It may be, too, in a normal "Lexicon". The collector (URL:http://classic.zope.org/Collector) contains a patch for "GlobbingLexicon". The patch is applied in Zope 2.2.1. Dieter ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
