Thank you for your answer. I sure will implement something in that direction.
But couldn't multiple tokens be used instead of multiple values?
<fieldType name="hier" class="solr.TextField">
<analyzer type="index">
// some tokenizer and filters that generates "0//Europe",
"1//Europe//Norway", "2//Europe//Norway//Oslo"
</analyzer>
</fieldType>
<field name="country_facet" type="hier" indexed="true" stored="true"/>
Wouldn't that work in just the same way? Or is it some difference
between multiple tokens and multiple values that I'm missing?
--
Regards,
Mats Bolstad
On Fri, Aug 13, 2010 at 2:21 AM, Jayendra Patil
<jayendra.patil....@gmail.com> wrote:
> We were able to get the hierarchy faceting working with a work around
> approach.
>
> e.g. if you have Europe//Norway//Oslo as an entry
>
> 1. Create a new multivalued field with string type
>
> <field name="country_facet" type="string" indexed="true" stored="true"
> multiValued="true"/>
>
> 2. Index the field for "Europe//Norway//Oslo" with values
>
> 0//Europe
> 1//Europe//Norway
> 2//Europe//Norway//Oslo
>
> 3. The Facet can now be used in the Queries :-
>
> 1st Level - Would return all entries @ 1st level e.g. 0//USA, 0//Europe
>
> fq=
>
> f.country_facet.facet.prefix=0//
>
> facet.field=country_facet
>
>
> 2nd Level - Would return all entries @ second level in Europe
> 1//Europe//Norway, 1//Europe//Sweden
>
> fq=country_facet:0//Europe
>
> f.country_facet.facet.prefix=1//Europe
>
> facet.field=country_facet
>
>
>
> 3rd Level - Would return 1//Europe//Norway entries
>
> fq=country_facet:1//Europe//Norway
>
> f.country_facet.facet.prefix=2//Europe//Norway
>
> facet.field=country_facet
>
> Increment the facet.prefix by 1 so that you limit the facet results to to
> that prefix.
> Also works for any depth.
>
> Regards,
> Jayendra
>
>
> On Thu, Aug 12, 2010 at 6:01 PM, Mats Bolstad <mat...@stud.ntnu.no> wrote:
>
>> Hey all,
>>
>> I am doing a search on hierarchical data, and I have a hard time
>> getting my head around the following problem.
>>
>> I want a result as follows, in one single query only:
>>
>> USA (3)
>> > California (2)
>> > Arizona (1)
>> Europe (4)
>> > Norway (3)
>> >> Oslo (3)
>> > Sweden (1)
>>
>> How it looks in the XML/JSON response is not really important, this is
>> more a presentation issue. I guess I could store the values "USA",
>> "USA/California", "Europe/Norway/Oslo" as strings for each document,
>> and do some JavaScript-ing to show the hierarchies appropriately. When
>> a specific item in the facet is selected, for example "Norway", Solr
>> could be queries with a filter query on "Europe/Norway*"?
>>
>> Do anyone have some experiences they could please share with me?
>>
>> I have tried out SOLR-64, and it gives me the results I look for.
>> However, I do not have the opportunity to use a patch in the
>> production environment ...
>>
>> --
>> Thanks,
>> Mats Bolstad
>>
>
