deferred validation

framework/assets/yii.activeForm.js

@@ -280,24 +280,25 @@
     var validate = function ($form, successCallback, errorCallback) {
         var data = $form.data('yiiActiveForm'),
             needAjaxValidation = false,
-            messages = {};
+            messages = {},
+            deferreds = [];
 
         $.each(data.attributes, function () {
             if (data.submitting || this.status === 2 || this.status === 3) {
                 var msg = [];
+                messages[this.id] = msg;
                 if (!data.settings.beforeValidate || data.settings.beforeValidate($form, this, msg)) {
                     if (this.validate) {
-                        this.validate(this, getValue($form, this), msg);
+                        this.validate(this, getValue($form, this), msg, deferreds);
                     }
-                    if (msg.length) {
-                        messages[this.id] = msg;
-                    } else if (this.enableAjaxValidation) {
+                    if (this.enableAjaxValidation) {
                         needAjaxValidation = true;
                     }
                 }
             }
         });
 
+        $.when.apply(this, deferreds).always(function() {
             if (needAjaxValidation && (!data.submitting || $.isEmptyObject(messages))) {
                 // Perform ajax validation when at least one input needs it.
                 // If the validation is triggered by form submission, ajax validation
@@ -344,6 +345,7 @@
             } else {
                 successCallback(messages);
             }
+        });
     };
 
     /**