开发alert提示

backend/views/layouts/main.php

@@ -1,3 +1,4 @@
+
 <?php
 /* @var $this \yii\web\View */
 /* @var $content string */
@@ -5,6 +6,7 @@
 use backend\assets\AppAsset;
 use yii\helpers\Html;
 use yii\widgets\Breadcrumbs;
+use common\widgets\Alert;
 
 AppAsset::register($this);
 ?>
@@ -27,6 +29,11 @@ AppAsset::register($this);
             <?= $this->render('sidebar') ?>
 
             <div class="content-wrapper">
+                <?php
+                if (Yii::$app->session->hasFlash('error') || Yii::$app->session->hasFlash('success')) {
+                    echo Alert::widget();
+                }
+                ?>
                 <section class="content-header">
                     <?= $this->render('breadcrumb') ?>
                 </section>

backend/views/layouts/sidebar.php

@@ -21,8 +21,8 @@ use iron\widgets\Menu;
                 ]
                 ],
                 ['label' => '商品管理', 'url' => '#', 'icon' => 'far fa-archive', 'items' => [
-                    ['label' => '规格管理', 'url' => ['/antgoods/attribute/index']],
                     ['label' => '后台商品分类', 'url' => ['/antgoods/category/index']],
+                    ['label' => '规格管理', 'url' => ['/antgoods/attribute/index']],
                     ['label' => '前端商品分类', 'url' => ['/antgoods/shop-category/index']],
                     ['label' => '品牌管理', 'url' => ['/antgoods/brand/index']],
                     ['label' => '供应商管理', 'url' => ['/antgoods/supplier/index']],

common/widgets/Alert.php

@@ -2,6 +2,7 @@
 namespace common\widgets;
 
 use Yii;
+use yii\bootstrap4\Widget;
 
 /**
  * Alert widget renders a message from session flash. All flash messages are displayed
@@ -22,7 +23,7 @@ use Yii;
  * @author Kartik Visweswaran <kartikv2@gmail.com>
  * @author Alexander Makarov <sam@rmcreative.ru>
  */
-class Alert extends \yii\bootstrap\Widget
+class Alert extends Widget
 {
     /**
      * @var array the alert types configuration for the flash messages.
@@ -59,7 +60,7 @@ class Alert extends \yii\bootstrap\Widget
             }
 
             foreach ((array) $flash as $i => $message) {
-                echo \yii\bootstrap\Alert::widget([
+                echo \yii\bootstrap4\Alert::widget([
                     'body' => $message,
                     'closeButton' => $this->closeButton,
                     'options' => array_merge($this->options, [