- Добавлено формирование таблицы файлов через GridView

common/modules/analyticsSchool/views/lesson-admin/_files.php

 <?php
 use \common\modules\analyticsSchool\models\AnalyticsSchoolLesson;
+use \yii\grid\GridView;
+use \yii\data\ActiveDataProvider;
+use \yii\bootstrap\Html;
 
 /**
  * @var AnalyticsSchoolLesson $model
+ * @var ActiveDataProvider $dataProvider
  */
-?>
 
-<table>
-    <thead>
+echo GridView::widget([
+    'dataProvider' => $dataProvider,
+    'options' => [
+        'id' => 'lesson-file'
+    ],
+    'columns' => [
+        'title:string',
+        'file:string',
 
-    </thead>
-</table>
+        ['class' => 'yii\grid\ActionColumn'],
+    ],
+]);
+echo Html::button('Добавить файл', ['id' => 'add_file', 'class' => 'btn btn-primary pull-right']);
+?>