factorize solr results formatting in BookSearch

lib/BookSearch.php

@@ -51,7 +51,8 @@ class BookSearch
     /**
      * @param int $start
      * @param int $count
-     * @return SolrObject
+     * @return array
+     * @throws WebException
      */
     public function getResults($start = 0, $count = 15)
     {
@@ -64,6 +65,20 @@ class BookSearch
         $this->query->setStart($start);
         $this->query->setRows($count);
 
-        return $this->client->query($this->query)->getResponse();
+        try {
+            $results = $this->client->query($this->query)->getResponse();
+        } catch(SolrClientException $e) {
+            throw new WebException ("SolrError", $e->getMessage(), -700);
+        }
+
+        $books = isset($results['response']['docs']) ?
+            array_map(function($o) { return (array) $o; }, $results['response']['docs']) :
+            false;
+
+        return array(
+            'count' => $results['response']['numFound'],
+            'facets' => $results['facet_counts']['facet_fields'],
+            'books' => $books,
+        );
     }
 }

mobile.netbiblio.php

@@ -357,12 +357,7 @@ class NetBiblio extends WebService
         $bs = new BookSearch();
         $bs->addSortField('random_'.$seed);
         $results = $bs->getResults(0, $number);
-
-        if($results['response']['docs']) {
-            $books = array_map(function($o) { return (array) $o; }, $results['response']['docs']);
-            return $this->AddBookData($books);
-        }
-        return array();
+        return $results['books'] ? $this->AddBookData($results['books']) : array();
     }
 
     public function Search($query, $start, $limit)
@@ -444,21 +439,14 @@ class NetBiblio extends WebService
         $count = isset($queryArray['count']) ? (int) $queryArray['count'] : Configuration::get('solr.result_count');
         $start = isset($queryArray['page']) ? $queryArray['page'] * $count : 0;
 
-        try {
-            $results = $bs->getResults($start, $count);
-        } catch(SolrClientException $e) {
-            throw new WebException ("SolrError", $e->getMessage(), -700);
-        }
-
+        $results = $bs->getResults($start, $count);
         $data = array(
-            'count' => $results['response']['numFound'],
-            'facets' => $results['facet_counts']['facet_fields'],
+            'count' => $results['count'],
+            'facets' => $results['facets'],
         );
 
-        if($results['response']['docs']) {
-            $books = array_map(function($o) { return (array) $o; }, $results['response']['docs']);
-            $books = $this->AddBookData($books);
-            $data = array_merge($data, $books);
+        if($results['books']) {
+            $data = array_merge($data,  $this->AddBookData($results['books']));
         }
 
         return $data;