fix(v-model): prevent double v-model update on functional components

prevent double v-model update on functional components by not transforming model when Ctor.options.functional is true fix vuejs#8436
wildan2711 · Jul 31, 2018 · 4165efc · 4165efc
1 parent 21112ec
commit 4165efc
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
@@ -150,8 +150,9 @@ export function createComponent (
   // component constructor creation
   resolveConstructorOptions(Ctor)
 
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
+  // transform component v-model data into props & events.
+  // make sure to transform model only once in functional components.
+  if (isDef(data.model) && !isTrue(Ctor.options.functional)) {
     transformModel(Ctor.options, data)
   }