Fixed custom widget validation (#12629) (#12632)

framework/CHANGELOG.md

@@ -4,6 +4,7 @@ Yii Framework 2 Change Log
 2.0.10 under development
 ------------------------
 
+- Bug #12629: Fixed `ActiveField::widget()` to call `adjustLabelFor()` for `InputWidget` descendants (coderlex)
 - Bug #7670: Added `UrlNormalizer` for normalizing requests with and without trailing slashes (rob006, cronfy, klimov-paul)
 - Bug #9027: Fixed descendant class of `yii\web\UploadedFile` returns parent instances in case invoked after it (andrewnester)
 - Bug #12428: Fixed `yii\db\mysql\QueryBuilder` causes warning when insert default rows into a table without primary key (DrmagicE)

framework/widgets/ActiveField.php

@@ -697,6 +697,9 @@ class ActiveField extends Component
         $config['model'] = $this->model;
         $config['attribute'] = $this->attribute;
         $config['view'] = $this->form->getView();
+        if (in_array('yii\widgets\InputWidget', class_parents($class)) && isset($config['options'])) {
+            $this->adjustLabelFor($config['options']);
+        }
         $this->parts['{input}'] = $class::widget($config);
 
         return $this;