Add a group sort field (group.sort parameter).
$field
$order
Allow sorting group documents, using group sort field (group.sort parameter).
field
Field name
order
Order ASC/DESC, utilizes SolrQuery::ORDER_* constants
Example #1 SolrQuery::addGroupSortField example
<?php$solrQuery = new SolrQuery('*:*');$solrQuery ->setGroup(true) ->addGroupSortField('price', SolrQuery::ORDER_ASC); echo $solrQuery; ?>
The above example will output something similar to:
q=*:*&group=true&group.sort=price asc