Adapt code to new Solr config

NetBiblio.php

@@ -533,7 +533,7 @@ class NetBiblio extends WebService
      * @param string $query Text to search
      * @param int $start
      * @param int $limit
-     * @return array
+     * @return array an array of books
      * @throws WebException
      */
     public function Search($query, $start, $limit)
@@ -574,6 +574,16 @@ class NetBiblio extends WebService
      * ° category : synonym for 'genre' (see above)
      * ° producer : synonym for 'producerCode' (see above)
      *
+     * Return value :
+     *
+     * The return value start with two keys :
+     *
+     * ° 'count' : which is the total number of available results
+     * ° 'facets' : which contains all other relevent information (facets, spellchecking,
+     *              highlighting, etc). This name is used for compatibility reasons.
+     *
+     * Then, the books come right after.
+     *
      * @param string $values JSON encoded object
      * @return array
      * @throws WebException
@@ -601,17 +611,6 @@ class NetBiblio extends WebService
 
         $bs = new BookSearch();
 
-        if (isset($queryArray['queryType'])) {
-            $bs->addSortField('author', \SolrQuery::ORDER_ASC);
-            $bs->addSortField('title', \SolrQuery::ORDER_ASC);
-            $bs->addSortField('producerCode');
-            $bs->addSortField('mediaType', \SolrQuery::ORDER_ASC);
-        } else {
-            $bs->addSortField('availabilityDate');
-            $bs->addSortField('author', \SolrQuery::ORDER_ASC);
-            $bs->addSortField('title', \SolrQuery::ORDER_ASC);
-        }
-
         if (isset($queryArray['queryText']) && strlen($queryArray['queryText']) > 0) {
             $type = isset($queryArray['queryType']) ? $queryArray['queryType'] : null;
 
@@ -729,8 +728,13 @@ class NetBiblio extends WebService
         } else {
             $s->addQuery($genre, 'genre');
         }
+        // this is not strictly speaking needed since we boost
+        // more recent books anyway, but let be on the safe side
         $s->addSortField('availabilityDate');
 
+        // we only want visible books
+        $s->addQuery(1, 'visible');
+
         $results = $s->getResults(0, $number);
         $books = $this->AddBookData($results['books']);