ZoPe's zCatalog is a way of creating indexes to improve performance.

ZWiki:HowToInstallAZwikiCatalog describes the manual process

• it's not clear to me why many of those properties need to be indexed. For instance, lastEditTime is what it seems, but last_edit_time is its string representation, which seems unlikely to be searched or sorted on.

I want an automated process so I can do it on customer sites. Also my Get Slice problem makes it impossible to do it the manual way.

ZWiki:SetupIssueTracker has an External Method to do the job.

I didn't think an External Method was was great approach, because

• it doesn't seem to use acquisition for context, so you need to either pass a location as a parameter or set up the method within the target folder (which is how its written there) which gets back to my Get Slice problem

• if you need to tweak it you have to work outside Zope, then get the [ZMI] to re-recognize the new version, which didn't seem automatic when I tried it.

But I tried it that way anyway just to avoid confusion. Hah.

Jun26 2003

Copied external method. Ripped out the pieces specific to the Issue Tracker.

• but I did leave some of the properties. Maybe that was a bad idea?

Ran external method. Got error message "index already exists" (not the exact phrasing). No catalog created. Tried a couple times with the same result.

Tried creating a catalog by hand. Noticed that it added some index and Meta Data tables automatically.

Tried deleting that catalog, removing the automatically-added indexes from the external method, then running it again. No go.

Tried adding the catalog by hand, then tweaking the method so that it wouldn't create a new catalog, but just add indexes, etc. It gave me the same error message! But on inspection all the right stuff had been added to the catalog!

Unfortunately:

• the code was designed for an empty folder, so I have to figure out how to automate the manage_findObjects function. There doesn't seem to be much documentation around for this.

• still buried back in that Get Slice problem.

Unless I find a problem, I'll try and convert this to a [Python Script] and figure out the manage_findObjects piece to add. Or maybe I'll give a last try with the external method after ripping out the Issue Tracker properties.

June30

Here's the list of commands. Here are some samples.

tried a one-line script to create a catalog --Bill Seitz, 2003/06/30 20:41 [GMT]
'catalog = [Z Catalog](catalog,container=self)'

But get You are not allowed to access ZCatalog in this context - 90% sure this is because [Python Script] can't do so many things because of the [SandBox].

I wonder whether this approach will get me around the problem? Ugh, it looks like that would still require mucking around outside [ZMI].

Haven't gotten a response re [Python Script] --Bill Seitz, 2003/07/01 18:10 [GMT]
So maybe I'll face reality and get back to the Zope Get Slice Bug.

Yay, can get back to this - Zope Get Slice Bug solved --Bill Seitz, 2003/07/16 22:09 [GMT]
Jon Udell article notes that acquisition applies to [External Methods], too.

or another [Python Script] approach --Bill Seitz, 2003/07/16 22:35 [GMT]
[Dieter Maurer] says use 'destinationFolder.manage_addProduct[[ Product Name]].constructor(args)'

just do it manually for now --Bill Seitz, 2003/07/17 15:54 [GMT]
My priority is to improve performance of the whole server by getting my big wiki indexed. I can play with other methods later.

hmm, it's still slow --Bill Seitz, 2003/07/17 15:58 [GMT]
Apparently still not using the catalog - DTML code shows a bruteforce flag, don't know where that's set, or whether it's obsolete.

just rip out pieces for now --Bill Seitz, 2003/07/17 16:46 [GMT]
to force it to use the Catalog.

Unfortunately, references to src for the contents of the blogbit pages kicks out garbage. I have an ugly feeling they'd need to be included in the Catalog. Unless maybe I do some sort of lookup from the page id that's in the cache to the page contents that's not in the cache?

use [Principia Search Source]? --Bill Seitz, 2003/07/17 21:54 [GMT]
When I created the catalog this was included as a default Index and Metadata column, and I didn't delete it.

So I thought - hey, maybe I can use that instead of src.

But it has the same weird effect - it sucks in the Front Page contents instead of the indexed-page contents. Weird.

• duh, just realized it has an index but not a metadata column

• also, after deciding not to work with it for now, dumped its index to cut that overhead.

if add src to metadata --Bill Seitz, 2003/07/17 23:21 [GMT]
Don't do it directly, but make a [Python Method] to return just some subset of it (first 2000 chars).

Hmm, if done right could use this for non-blog pages, too. Or, maybe prefer to render canonicalLinks for those? Or both?

got response --Bill Seitz, 2003/07/18 00:24 [GMT]
needed to use getObject() and text()

see ZWiki:ZwikiBlog

• also there are other things to look at there

remember to fix test for catalog --Bill Seitz, 2003/07/18 00:26 [GMT]
Ripped that out before.

And ZWiki:ZwikiBlog doesn't test - it just assumes there's a catalog.

other places to reference catalog --Bill Seitz, 2003/07/18 21:52 [GMT]
Did it for:

• Recent Changes

• rss.xml

Not for:

• Web Log History, Wiki History

• Search, Backlinks

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