Added _sum and _count built-in functions

sagivmalihi · Jul 23, 2015 · 84a7b94 · 84a7b94
1 parent d9a24f2
commit 84a7b94
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/lib/get_view.js b/lib/get_view.js
@@ -76,6 +76,28 @@ module.exports = function (self) {
       return false;
     }
 
+    if (typeof view.reduce === 'string') {
+      switch (view.reduce) {
+      case '_sum':
+        /*jslint unparam:true*/
+        view.reduce = function (keys, values, rereduce) {
+          return values.reduce(function (a, b) { return a + b; });
+        };
+        /*jslint unparam:false*/
+        break;
+      case '_count':
+        /*jslint unparam:true*/
+        view.reduce = function (keys, values, rereduce) {
+          if (rereduce) {
+            return values.reduce(function (a, b) { return a + b; });
+          }
+          return values.length;
+        };
+        /*jslint unparam:false*/
+        break;
+      }
+    }
+
     if (useReduce && !useGroup) {
       // Reduce and no group
       (function () {