Catalog Query Feature Request, was: RE: [Zope-dev] An idea for Un iqueValuesFor

[sean.upton@uniontrib.com]

I could definitely see the value of a unique-values query into ZCatalog,
especially for creating things using <dtml-tree> using keywords, etc...

On a slightly related (well, not really) note, CatalogQuery looks like it
would solve a lot of problems I have had with a very Catalog-intensive
application.  One thought I had - I might suggest the possibility of adding
a fuzzy matching operator to CatalogQuery that performs the function of
wrapping wildcard searches on search terms for Text Indexes, supposing the
Catalog is using a globbing vocabulary:

~=	as an operator would mean an approximate (substring) match

So a search for 'title ~= "engineer"' would perform a search for
'*engineer*' and return results containing words like engineer, engineers,
engineering, etc.

Right now, I attempt to safely rewrite REQUEST['someFieldThatIamSearching']
with a Python class method that uses a zillion re.sub() calls to wrap search
terms in * characters; I wonder if there is a way to alternately implement
something like this at a lower level, perhaps in CatalogQuery; I get the
feeling it would be quicker and much more simple.

If something like that were implemented as well as some equivalent to
sort_on, I'd stop pulling my hair out with traditional workarounds and
definitely switch all my stuff to use CatalogQuery instead...

Thoughts?

Sean

-----Original Message-----
From: Casey Duncan [mailto:cduncan@kaivo.com]
Sent: Monday, July 30, 2001 8:20 AM
To: Chris Withers
Cc: zope-dev@zope.org; Anthony Baxter
Subject: Re: [Zope-dev] An idea for UniqueValuesFor


Chris Withers wrote:
> 
> Casey Duncan wrote:
> >
> > possibly, yes. I'll look to add this to my CatalogQuery product. I
> > believe the btrees can be pressed into service here...
> 
> Hadn't heard of this CatalogQuery product... where can I find out more?
> 
> I think I may have been about to develop something similar, so maybe we
can help
> each otehr out?
> 
> cheers,
> 
> Chris
> 

http://www.zope.org/Members/Kaivo/CatalogQuery

This is my first stab at this. I forsee a much more general query
mechanism in the future, but this works better than the stock stuff (for
me) and it works today!

Let me know what your ideas are...

-- 
| Casey Duncan
| Kaivo, Inc.
| cduncan@kaivo.com
`------------------>

_______________________________________________
Zope-Dev maillist  -  Zope-Dev@zope.org
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 )