Chris@0: /**
Chris@0:  * Implements hook_ranking().
Chris@0:  */
Chris@0: function {{ machine_name }}_ranking() {
Chris@0:   // If voting is disabled, we can avoid returning the array, no hard feelings.
Chris@0:   if (variable_get('vote_node_enabled', TRUE)) {
Chris@0:     return array(
Chris@0:       'vote_average' => array(
Chris@0:         'title' => t('Average vote'),
Chris@0:         // Note that we use i.sid, the search index's search item id, rather than
Chris@0:         // n.nid.
Chris@0:         'join' => array(
Chris@0:           'type' => 'LEFT',
Chris@0:           'table' => 'vote_node_data',
Chris@0:           'alias' => 'vote_node_data',
Chris@0:           'on' => 'vote_node_data.nid = i.sid',
Chris@0:         ),
Chris@0:         // The highest possible score should be 1, and the lowest possible score,
Chris@0:         // always 0, should be 0.
Chris@0:         'score' => 'vote_node_data.average / CAST(%f AS DECIMAL)',
Chris@0:         // Pass in the highest possible voting score as a decimal argument.
Chris@0:         'arguments' => array(variable_get('vote_score_max', 5)),
Chris@0:       ),
Chris@0:     );
Chris@0:   }
Chris@0: }