[ckan-dev] Solr schema adjustements

Wed Aug 12 07:28:12 UTC 2015

Hi Dan,

Just to add to Joe's excellent suggestion, I'll quickly point that the best
place to tweak the search internally is the `before_search` extension
point, that allows you to modify what gets sent to Solr:

http://docs.ckan.org/en/latest/extensions/plugin-interfaces.html?highlight=interfaces#ckan.plugins.interfaces.IPackageController.before_search

Cheers,

Adrià

On 12 August 2015 at 08:00, Dan Mihaila <danmihaila at gmail.com> wrote:

> Hi Joe,
> This is an excellent idea and it will be good to have it in docs. We will
> give a try and will let you know our results.
>
> Thanks for quick reply.
>
> Cheers,
>   Dan Mihaila
>
>
> > On 12 Aug 2015, at 03:03, Joe Tsoi <joe.tsoi at okfn.org> wrote:
> >
> > Hi Dan,
> >
> > This is the sort of are that I've been meaning to add to the docs for
> > a while. You shouldn't need to mess around with the schema to do what
> > you require, as the schema already contains the tags the dataset has.
> > Although I may be misreading what you require.
> >
> > I would use use boosting to improve the search relevency of the alpha
> > datasets. For example I can search for datasets containing a "test"
> > tag or a "economics" tag, but also boost the search relevency of any
> > dataset with the tag economics by typing  "(tags:Test) OR
> > (tags:economics)^2.0" into the default search box. You can see and
> > example of this on demo.ckan.org
> >
> > http://demo.ckan.org/dataset?q=(tags%3ATest)+OR+(tags%3Aeconomics)^2.0
> >
> > The economics results will appear above the test tag results as we've
> > boosted their relevency. I recommend you take a look at some of the
> > solr tutorials out there if you want to know more
> >
> > http://www.solrtutorial.com/solr-search-relevancy.html
> >
> > anything passed to q will be passed along to the q parameter in solr.
> > You could probably mess around with the front end templates to help
> > users construct this query instead of having users have to know solr
> > syntax, but as I said this is an area I've been meaning to add to the
> > docs for a while.
> >
> > hope that helps a bit.
> >
> > Joe
> >
> >> On 11 August 2015 at 15:28, Dan Mihaila <danmihaila at gmail.com> wrote:
> >> Hello,
> >> In our CKAN project (http://data.rwlabs.org) we would like to boost
> tags in search results. For example if an user searches "alpha" we would
> like to see in search results datasets that don't contain "alpha" in title
> or description,etc. but they have a tag named "alpha".
> >> My question is if it safe to play with SOLR schema (what could be the
> impact on other searches) and if there are any recommendations about this?
> >>
> >> Regards,
> >> Dan Mihaila
> >>
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