diff --git a/addons/web_graph/static/src/js/utility.js b/addons/web_graph/static/src/js/utility.js
new file mode 100644
index 00000000000..9f4ab2bb6a3
--- /dev/null
+++ b/addons/web_graph/static/src/js/utility.js
@@ -0,0 +1,38 @@
+
+function removeFromArray(array, element) {
+    var index = array.indexOf(element);
+    if (index > -1) {
+        array.splice(index, 1);
+    }
+}
+
+/**
+ * Query the server and return a deferred which will return the data
+ * with all the groupbys applied (this is done for now, but the goal
+ * is to modify read_group in order to allow eager and lazy groupbys
+ */
+function query_groups (model, fields, domain, groupbys) {
+    return model.query(fields)
+        .filter(domain)
+        .group_by(groupbys)
+        .then(function (results) {
+            var non_empty_results = _.filter(results, function (group) {
+                return group.attributes.length > 0;
+            });
+            if (groupbys.length <= 1) {
+                return non_empty_results;
+            } else {
+                var get_subgroups = $.when.apply(null, _.map(non_empty_results, function (result) {
+                    var new_domain = result.model._domain;
+                    var new_groupings = groupbys.slice(1);
+                    return query_groups(model, fields,new_domain, new_groupings).then(function (subgroups) {
+                        result.subgroups_data = subgroups;
+                    });
+                }));
+                return get_subgroups.then(function () {
+                    return non_empty_results;
+                });
+            }
+        });
+}
+