v-bind: update v-model on same element when value bindings change

Author: yyx990803

src/directives/attr.js

@@ -86,6 +86,11 @@ module.exports = {
     var modelProp = modelProps[attr]
     if (modelProp) {
       this.el[modelProp] = value
+      // update v-model if present
+      var model = this.el.__v_model
+      if (model) {
+        model.listener()
+      }
     }
   }
 }

src/directives/model/radio.js

@@ -27,9 +27,10 @@ module.exports = {
       return val
     }
 
-    this.on('change', function () {
+    this.listener = function () {
       self.set(self.getValue())
-    })
+    }
+    this.on('change', this.listener)
 
     if (el.checked) {
       this._initValue = this.getValue()

src/directives/model/select.js

@@ -27,15 +27,16 @@ module.exports = {
     this.multiple = el.hasAttribute('multiple')
 
     // attach listener
-    this.on('change', function () {
+    this.listener = function () {
       var value = getValue(el, self.multiple)
       value = self.number
         ? _.isArray(value)
           ? value.map(_.toNumber)
           : _.toNumber(value)
         : value
       self.set(value)
-    })
+    }
+    this.on('change', this.listener)
 
     // check initial value (inline selected attribute)
     checkInitialValue.call(this)