Release 1.0.5

dist/Q.js

@@ -1,5 +1,5 @@
 /*!
- * Q.js v1.0.4
+ * Q.js v1.0.5
  * Inspired from vue.js
  * (c) 2015 Daniel Yang
  * Released under the MIT License.
@@ -975,8 +975,12 @@ return /******/ (function(modules) { // webpackBootstrap
 	    /**
 	     * get the parent of the data
 	     */
-	    $up: function () {
-	        return this._up;
+	    $up: function (num) {
+	        num = num || 1;
+	        for (var src = this; num--;) {
+	            src = src['_up'];
+	        }
+	        return src;
 	    },
 	    /**
 	     * set the value of the key

dist/Q.native.js

@@ -1,5 +1,5 @@
 /*!
- * Q.js v1.0.4
+ * Q.js v1.0.5
  * Inspired from vue.js
  * (c) 2015 Daniel Yang
  * Released under the MIT License.
@@ -1048,8 +1048,12 @@ return /******/ (function(modules) { // webpackBootstrap
 	    /**
 	     * get the parent of the data
 	     */
-	    $up: function () {
-	        return this._up;
+	    $up: function (num) {
+	        num = num || 1;
+	        for (var src = this; num--;) {
+	            src = src['_up'];
+	        }
+	        return src;
 	    },
 	    /**
 	     * set the value of the key

dist/Q.zepto.js

@@ -1,5 +1,5 @@
 /*!
- * Q.js v1.0.4
+ * Q.js v1.0.5
  * Inspired from vue.js
  * (c) 2015 Daniel Yang
  * Released under the MIT License.
@@ -998,8 +998,12 @@ return /******/ (function(modules) { // webpackBootstrap
 	    /**
 	     * get the parent of the data
 	     */
-	    $up: function () {
-	        return this._up;
+	    $up: function (num) {
+	        num = num || 1;
+	        for (var src = this; num--;) {
+	            src = src['_up'];
+	        }
+	        return src;
 	    },
 	    /**
 	     * set the value of the key

package.json

@@ -1,6 +1,6 @@
 {
   "name": "Q.js",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "fake-MVVM library",
   "main": "dist/Q.js",
   "scripts": {

src/core/data.js

@@ -101,8 +101,12 @@ _.extend(Data.prototype, {
     /**
      * get the parent of the data
      */
-    $up: function () {
-        return this._up;
+    $up: function (num) {
+        num = num || 1;
+        for (var src = this; num--;) {
+            src = src['_up'];
+        }
+        return src;
     },
     /**
      * set the value of the key

tests/spec/data.js

@@ -190,6 +190,54 @@ module.exports = function (Q) {
                 }
             });
         });
+
+        it('should able to use .$up to get the up data', function () {
+            var vm = new Q({
+                el: null,
+                data: {
+                    a: {
+                        b: {
+                            c: 'hello'
+                        }
+                    }
+                }
+            });
+
+            vm.a.b.$up().should.equal(vm.a);
+            vm.a.b.$up().should.equal(vm.a.b.$up(1));
+            vm.a.b.$up(2).should.equal(vm);
+        });
+
+        it('should able to use .$key to get a data key', function () {
+            var vm = new Q({
+                el: null,
+                data: {
+                    a: {
+                        b: {
+                            c: 'hello'
+                        }
+                    }
+                }
+            });
+
+            vm.a.b.$key().should.equal('b');
+            vm.a.$key().should.equal('a');
+        });
+
+        it('should able to use .$namespace to get a namespace in the model', function () {
+            var vm = new Q({
+                el: null,
+                data: {
+                    a: {
+                        b: {
+                            c: 'hello'
+                        }
+                    }
+                }
+            });
+
+            vm.a.b.$namespace().should.equal('a.b');
+        });
     });
 
 };