public function actionEdit($id)
 {
     $model = Products::findOne(['id' => $id]);
     $all_cats = ModArendaTree::find()->asArray()->all();
     if ($model->load(Yii::$app->request->post())) {
         $model->imageFile = UploadedFile::getInstance($model, 'imageFile');
         if ($model->validate()) {
             if (!empty($model->imageFile)) {
                 $model->upload();
                 $model->image = md5($model->imageFile->baseName . date("Y-m-d-H-i-s")) . '.' . $model->imageFile->extension;
             }
             if ($model->save()) {
                 $last_id = $_GET['id'];
                 foreach (Yii::$app->request->post('character') as $key => $value) {
                     $model1 = CharacteristicsProducts::findOne(['product_id' => $last_id, 'character_id' => $key]);
                     if (!$model1) {
                         $model1 = new CharacteristicsProducts();
                         $model1->product_id = $last_id;
                     }
                     $model1->character_id = $key;
                     $model1->value = empty($value) ? 'none' : $value;
                     $model1->save();
                 }
             }
             // form inputs are valid, do something here
         }
     }
     $result = CharacteristicsForCats::find()->select(['characteristics_for_cats.*', 'characteristics.name AS characteristic_name'])->where(['cat_id' => $model->cat_id])->leftJoin('characteristics', 'characteristics_for_cats.character_id=characteristics.id')->leftJoin('characteristics_products', 'characteristics_for_cats.character_id=characteristics_products.character_id')->asArray()->all();
     if (empty($result)) {
         $cat = ModArendaTree::findOne(['id' => $model->cat_id]);
         while ($cat->parent_id != 0) {
             $result = CharacteristicsForCats::find()->select(['characteristics_for_cats.*', 'characteristics.name AS characteristic_name', 'characteristics_products.value AS VALUE'])->where(['cat_id' => $cat->parent_id])->leftJoin('characteristics', 'characteristics_for_cats.character_id=characteristics.id')->leftJoin('characteristics_products', 'characteristics_for_cats.character_id=characteristics_products.character_id AND characteristics_products.product_id="' . $_GET['id'] . '"')->asArray()->all();
             if (!empty($result)) {
                 break;
             }
             $cat = ModArendaTree::findOne(['id' => $cat->parent_id]);
         }
     } else {
     }
     $html = '';
     if (!empty($result)) {
         foreach ($result as $key => $value) {
             $VAL = !empty($value['VALUE']) ? $value['VALUE'] : '';
             $html .= '
             <div class="form-group">
                 <label><p>' . $value['characteristic_name'] . '</p>
                 <input value="' . $VAL . '" type="text" class="form-control" name="character[' . $value['character_id'] . ']" >
                 </label>
             </div>
             ';
         }
     }
     return $this->render('edit', ['model' => $model, 'all_cats' => $all_cats, 'html' => $html]);
 }