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,
+        );
     }
 }