[Zope3-dev] hurry.query in Zope 3.2?

[Jeff Shell]

I love hurry.query. Whether it's in the core or not doesn't phase me,
but it is really really helpful. We got bit by not realizing that
FieldIndex queries passed directly to the catalog/index had a low and
high range. It was a small bite. But it took us a while to figure out
why searching for 'summer' pages included 'winter' ones, but searching
for 'winter' pages only returned winter. So we put in hurry.query. And
were able to do it without depending on zc.catalog. It made the
catalog experience a lot nicer.

I'd put my vote behind inclusion. While the catalog is certainly
cleaner and easier to understand than the Zope 2 catalog, querying it
is still kindof a pain, which is mentioned in
zope.index.interfaces.IIndexSearch

        TODO
            This is somewhat problemetic. It means that application
            code that calls apply has to be aware of the
            expected query type. This isn't too much of a problem now,
            as we have no more general query language nor do we have
            any sort of automatic query-form generation.

            It would be nice to have a system later for having
            query-form generation or, perhaps, sme sort of query
            language. At that point, we'll need some sort of way to
            determine query types, presumably through introspection of
            the index objects.

hurry.query seems to fill in this hole.

On 10/24/05, Martijn Faassen <faassen at infrae.com> wrote:
> Hi there,
>
> Would there be any interest in merging hurry.query into Zope 3.2?
>
> What it does:
>
> hurry.query - higher level query system built on top of the Zope 3
>                catalog. Some inspiration came from Dieter Maurer's
>                AdvancedQuery. See src/hurry/query/query.txt for
>                documentation.
>
> Here's the code:
>
> http://codespeak.net/svn/z3/hurry/trunk/src/hurry/query/
>
> And here's a doctest:
>
> http://codespeak.net/svn/z3/hurry/trunk/src/hurry/query/query.txt
>
> Of course, it probably needs a review and adaptations before it's
> accepted, and time until the feature freeze in november is short. It
> would be a very useful addition to Zope 3's featureset, however. It
> exposes features of various indexes that the normal catalog API does not
> expose, or if so, only very obscurely. :) Now that I think of it,
> exposing the ZCTextIndex properly with the various features involved may
> need the most work.
>
> If there's interest, I'd really appreciate volunteers for putting up a
> proposal on the wiki and integrating it into the codebase. This way it'd
> get a review by that person. If it'd be up to myself I likely won't have
> time...
>
> By the way, is zc.catalog up for merging with Zope 3.2, or won't this
> happen yet? hurry.query has a dependency on zc.catalog, though I believe
>   I succeeded in keeping this optional.
>
> Regards,
>
> Martijn
> _______________________________________________
> Zope3-dev mailing list
> Zope3-dev at zope.org
> Unsub: http://mail.zope.org/mailman/options/zope3-dev/eucci.group%40gmail.com
>
>