[xwiki-devs] Support for custom facets in Solr search

Hello there, I'd like to try to limit/customize the shown facets in the refinement panel for the Solr search. This would allow for a custom search page with different facet fields than the standard search (e.g. the facet "page" or "date" might not be useful in every case) or the addition of custom facet fields, for example "tags". Instead of modifying the global defaults in solrconfig.xml, I'd want to name the desired facet fields in the concrete solr query. Like documented for example in http://wiki.apache.org/solr/SimpleFacetParameters#Examples, if I want both fields "cat" and "inStock", I need to add both fieldnames to the query for the parameter "facet.field". On the Solr side, the set(String, String[]) method (http://lucene.apache.org/solr/4_2_1/solr-solrj/org/apache/solr/common/param…) could be used for this. However, the current SolrQueryExecutor implementation does not support this "multiple arguments" case, so for example a $query.bindValue('facet.field', ["cat", "inStock"])) doesn't work. To solve this problem, I suggest that SolrQueryExecutor.execute() checks each value of the named parameters for a list and optionally calls set(String, String[]) instead of set(String, String). I'd gladly supply a patch for this issue. Is there any interest in this? Sincerely, Martin Kresse -- Martin Kresse Anwendungsentwicklung EsPresto AG Breite Str. 30-31 10178 Berlin/Germany Tel: +49.(0)30.90 226.750 Fax: +49.(0)30.90 226.760 m.kresse(a)espresto.com HRB 77554 B - Berlin-Charlottenburg Vorstand: Maya Biersack, Peter Biersack Vorsitzender des Aufsichtsrats: Dipl.-Wirtsch.-Ing. Winfried Weber Zertifiziert nach ISO 9001:2008