Initial fix.

Author: adiroiban

src/select2.js

@@ -43,6 +43,15 @@ angular.module('ui.select2', []).value('uiSelect2Config', {}).directive('uiSelec
 
         if (controller) {
           // Watch the model for programmatic changes
+           scope.$watch(tAttrs.ngModel, function(current, old) {
+            if (!current) {
+              return
+            }
+            if (current == old) {
+              return
+            }
+            controller.$render()
+          }, true)
           controller.$render = function () {
             if (isSelect) {
               elm.select2('val', controller.$viewValue);

test/select2Spec.js

@@ -328,5 +328,19 @@ describe('uiSelect2', function () {
       // TODO: programmactically select an option
       // expect(scope.foo).toBe(/*  selected val  */) ;
     });
+
+    it('updated the view when model changes with complex object', function(){
+      scope.foo = [{'id': '0', 'text': '0'}];
+      scope.options['multiple'] = true
+      var element = compile('<input ng-model="foo" ui-select2="options">');
+      scope.$digest()
+
+      scope.foo.push({'id': '1', 'text': '1'})
+      scope.$digest()
+
+      expect(element.select2('data')).toEqual(
+        [{'id': '0', 'text': '0'}, {'id': '1', 'text': '1'}]);
+    });
+
   });
 });