Page computation doesn't fail if query size = 0 - #19

Author: mguillermin

module/app/com/github/cleverage/elasticsearch/IndexQuery.java

@@ -311,7 +311,12 @@ private IndexResults<T> toSearchResults(SearchResponse searchResponse) {
             pageCurrent = ((int) (from / pageSize))+1;
         }
 
-        long pageNb = (long)Math.ceil(new BigDecimal(count).divide(new BigDecimal(pageSize), 2, RoundingMode.HALF_UP).doubleValue());
+        long pageNb;
+        if (pageSize == 0) {
+            pageNb = 1;
+        } else {
+            pageNb = (long)Math.ceil(new BigDecimal(count).divide(new BigDecimal(pageSize), 2, RoundingMode.HALF_UP).doubleValue());
+        }
 
         // Return Results
         return new IndexResults<T>(count, pageSize, pageCurrent, pageNb, results, facetsResponse);