Solr 4.0 will introduce a new feature called "Pivot Facets" that may help with this; hopefully VuFind 2.0 will be upgraded soon (still waiting for some SolrMarc issues to get sorted out first).  More on the subject here: http://wiki.apache.org/solr/HierarchicalFaceting

Additionally, there's a JIRA ticket that might be relevant here:

http://vufind.org/jira/browse/VUFIND-599

I haven't had time to look at this closely, though!

- Demian

From: Bryon Czoch [bczoch@uchicago.edu]
Sent: Friday, March 01, 2013 3:40 PM
To: vufind-tech@lists.sourceforge.net
Subject: [VuFind-Tech] Vufind and Nested/Hierarchical Multi-select

Whats the best way to create a something like this:

 

         Audio

  Audio cassette

  CD

  LP

  Music recording

  Spoken word recording

         Video

  Blue-ray disc

  DVD

  Laserdisc

  Videocassette

         Image

  Photograph

 

 

Thanks,

Bryon