fixing bugs

lib/User/Widget/AssignmentsWidget.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Da\User\Widget;
+
+use dektrium\rbac\components\DbManager;
+use dektrium\rbac\models\Assignment;
+use Yii;
+use yii\base\InvalidConfigException;
+use yii\base\Widget;
+
+class AssignmentsWidget extends Widget
+{
+    /** @var integer ID of the user to whom auth items will be assigned. */
+    public $userId;
+
+    /** @var DbManager */
+    protected $manager;
+
+    /** @inheritdoc */
+    public function init()
+    {
+        parent::init();
+        $this->manager = Yii::$app->authManager;
+        if ($this->userId === null) {
+            throw new InvalidConfigException('You should set ' . __CLASS__ . '::$userId');
+        }
+    }
+
+    /** @inheritdoc */
+    public function run()
+    {
+        $model = Yii::createObject([
+            'class'   => Assignment::className(),
+            'user_id' => $this->userId,
+        ]);
+
+        if ($model->load(\Yii::$app->request->post())) {
+            $model->updateAssignments();
+        }
+
+        return $this->render('form', [
+            'model' => $model,
+        ]);
+    }
+}