Hi,
Instead of all the facet queries, you can also make use of range facets
(http://wiki.apache.org/solr/SimpleFacetParameters#Facet_by_Range),
which is in trunk afaik, it should also be patchable into older versions
of Solr, although that should not be necessary.
We make use of it (http://www.mysecondhome.co.uk/search.html) to create
the nice sliders Geert-Jan describes. We've also used it to add the
sparklines above the sliders which give a nice indication of how the
current selection is spread out.
Regards,
gwk
On 11/9/2010 3:33 PM, Geert-Jan Brits wrote:
Just to add to this, if you want to allow the user more choice in his option
to select ranges, perhaps by using a 2-sided javasacript slider for the
pricerange (ala kayak.com) it may be very worthwhile to discretize the
allowed values for the slider (e.g: steps of 5 dolllar) Most js-slider
implementations allow for this easily.
This has the advantages of:
- having far fewer possible facetqueries and thus a far greater chance of
these facetqueries hitting the cache.
- a better user-experience, although that's debatable.
just to be clear: for this the Solr-side would still use:
&facet=on&facet.query=price:[50
TO *]&facet.query=price:[* TO 100] and not the optimized pre-computed
variant suggested above.
Geert-Jan
2010/11/9 jayant<jayan...@hotmail.com>
That was very well thought of and a clever solution. Thanks.
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