Hi Simon,
I came across your post to the solr users list about using facet
prefixes, shown below. I was wondering if you were still using your
modified version of SimpleFacets.java, and if so -- if you could send me
a copy. I'll need to implement something similar, and it never hurts to
start from existing material.
Thanks,
Peter
Simon Hu wrote:
I also need the exact same feature. I was not able to find an easy solution
and ended up modifying class SimpleFacets to make it accept an array of
facet prefixes per field. If you are interested, I can email you the
modified SimpleFacets.java.
-Simon
steve berry-2 wrote:
Question: Is it possible to pass complex queries to facet.prefix?
Example instead of facet.prefix:foo I want facet.prefix:foo OR
facet.prefix:bar
My application is for browsing business records that fall into
categories. The user is only allowed to see businesses falling into
categories which they have access to.
I have a series of documents dumped into the following basic structure
which I was hoping would help me deal with this:
<doc>
<field name="id">123</field>
<field name="name">Business Corp.</field>
<field name="zip">28255-0001</field>
.....
<field name="market_category">charlotte_2006 Banks</field>
<field name="market_category">charlotte_2007 Banks</field>
<field name="market_category">sanfrancisco_2006 Banks</field>
<field name="market_category">sanfrancisco_2007 Banks</field>
... (lots more market_category entries) ...
</doc>
<doc>
<field name="id">124</field>
<field name="name">Factory Corp.</field>
<field name="zip">28205-0001</field>
.....
<field name="market_category">charlotte_2006 Banks</field>
<field name="market_category">charlotte_2007 Banks</field>
<field name="market_category">austin_2006 Banks</field>
<field name="market_category">austin_2007 Banks</field>
... (lots more market_category entries) ...
</doc>
.....
The multivalued market_category fields are flattened relational data
attributed to that business and I want to use those values for facted
navigation /but/ I want the facets to be restricted depending on what
products the user has access to. For example a user may have access to
sanfrancisco_2007 and sanfrancisco_2006 data but nothing else.
So I've created a request using facet.prefix that looks something like
this:
http://SOLRSERVER:8080/solr/select?q.op=AND&q=docType:gen&facet.field=market_category&facet.prefix=charlotte_2007
This ends up producing perfectly suitable facet results that look like
this:
......
<lst name="facet_queries"/>
<lst name="facet_fields">
<lst name="market_category">
<int name="charlotte_2007 Banks/Financial Institutions">1</int>
<int name="charlotte_2007 Employers">1</int>
<int name="charlotte_2007 Highest-Paid Executives/Public
Officials/Athletes">1</int>
<int name="charlotte_2007 Mergers Acquisitions">1</int>
<int name="charlotte_2007 Miscellaneous">1</int>
<int name="charlotte_2007 Public Companies">1</int>
<int name="charlotte_2007">0</int>
</lst>
.....
Bingo! facet.prefix does exactly what I want it to.
Now I want to go a step further and pass a compound statement to the
facet.prefix along the lines of "facet.prefix:charlotte_2007 OR
sanfrancisco_2007" or "facet.prefix:charlotte_2007 OR charlotte_2006" to
return more complex facet sets. As far as I can tell looking at the docs
this won't work.
Is this possible using the existing facet.prefix functionality? Anyone
have a better idea of how I should accomplish this?
Thanks,
steve berry
American City Business Journals
