diff --git a/packages/Webkul/Admin/src/DataGrids/SliderDataGrid.php b/packages/Webkul/Admin/src/DataGrids/SliderDataGrid.php
index 6e97d66a5..c4b911d5b 100755
--- a/packages/Webkul/Admin/src/DataGrids/SliderDataGrid.php
+++ b/packages/Webkul/Admin/src/DataGrids/SliderDataGrid.php
@@ -2,30 +2,55 @@
 
 namespace Webkul\Admin\DataGrids;
 
+use Illuminate\Support\Facades\DB;
 use Webkul\Core\Models\Channel;
 use Webkul\Ui\DataGrid\DataGrid;
-use Illuminate\Support\Facades\DB;
 
 class SliderDataGrid extends DataGrid
 {
+    /**
+     * Set index columns, ex: id.
+     *
+     * @var int
+     */
     protected $index = 'id';
 
+    /**
+     * Default sort order of datagrid.
+     *
+     * @var string
+     */
     protected $sortOrder = 'desc';
 
+    /**
+     * Locale.
+     *
+     * @var string
+     */
     protected $locale = 'all';
 
+    /**
+     * Channel.
+     *
+     * @var string
+     */
     protected $channel = 'all';
 
     /**
      * Contains the keys for which extra filters to render.
      *
      * @var string[]
-     **/
+     */
     protected $extraFilters = [
         'channels',
         'locales',
     ];
 
+    /**
+     * Create datagrid instance.
+     *
+     * @return void
+     */
     public function __construct()
     {
         parent::__construct();
@@ -43,16 +68,23 @@ class SliderDataGrid extends DataGrid
         }
     }
 
+    /**
+     * Prepare query builder.
+     *
+     * @return void
+     */
     public function prepareQueryBuilder()
     {
+        $dbPrefix = DB::getTablePrefix();
+
         $queryBuilder = DB::table('sliders as sl')
-          ->select('sl.id', 'sl.title', 'sl.locale', 'ct.channel_id', 'ct.name', 'ch.code')
-          ->leftJoin('channels as ch', 'sl.channel_id', '=', 'ch.id')
-          ->leftJoin('channel_translations as ct', 'ch.id', '=', 'ct.channel_id')
-          ->where('ct.locale', app()->getLocale());
+            ->select('sl.id', 'sl.title', 'sl.locale', 'ct.channel_id', 'ct.name', 'ch.code')
+            ->leftJoin('channels as ch', 'sl.channel_id', '=', 'ch.id')
+            ->leftJoin('channel_translations as ct', 'ch.id', '=', 'ct.channel_id')
+            ->where('ct.locale', app()->getLocale());
 
         if ($this->locale !== 'all') {
-            $queryBuilder->whereRaw("find_in_set(?, sl.locale)", [$this->locale]);
+            $queryBuilder->whereRaw("find_in_set(?, {$dbPrefix}sl.locale)", [$this->locale]);
         }
 
         if ($this->channel !== 'all') {
@@ -68,6 +100,11 @@ class SliderDataGrid extends DataGrid
         $this->setQueryBuilder($queryBuilder);
     }
 
+    /**
+     * Add columns.
+     *
+     * @return void
+     */
     public function addColumns()
     {
         $this->addColumn([
@@ -107,6 +144,11 @@ class SliderDataGrid extends DataGrid
         ]);
     }
 
+    /**
+     * Prepare actions.
+     *
+     * @return void
+     */
     public function prepareActions()
     {
         $this->addAction([
@@ -123,4 +165,4 @@ class SliderDataGrid extends DataGrid
             'icon'   => 'icon trash-icon',
         ]);
     }
-}
\ No newline at end of file
+}
diff --git a/packages/Webkul/Core/src/Http/Controllers/SliderController.php b/packages/Webkul/Core/src/Http/Controllers/SliderController.php
index d57db8a57..a1a1314a7 100755
--- a/packages/Webkul/Core/src/Http/Controllers/SliderController.php
+++ b/packages/Webkul/Core/src/Http/Controllers/SliderController.php
@@ -7,20 +7,22 @@ use Webkul\Core\Repositories\SliderRepository;
 class SliderController extends Controller
 {
     /**
-     * Contains route related configuration
+     * Contains route related configuration.
      *
      * @var array
      */
     protected $_config;
 
     /**
-     * SliderRepository
+     * Slider repository instance.
      *
      * @var \Webkul\Core\Repositories\SliderRepository
      */
     protected $sliderRepository;
 
     /**
+     * Channels.
+     *
      * @var array
      */
     protected $channels;
@@ -61,7 +63,7 @@ class SliderController extends Controller
     }
 
     /**
-     * Creates the new sider item.
+     * Creates the new slider item.
      *
      * @return \Illuminate\Http\Response
      */
@@ -75,6 +77,7 @@ class SliderController extends Controller
         ]);
 
         $data = request()->all();
+
         $data['expired_at'] = $data['expired_at'] ?: null;
 
         if (isset($data['locale'])) {
@@ -120,13 +123,14 @@ class SliderController extends Controller
         ]);
 
         $data = request()->all();
+        
         $data['expired_at'] = $data['expired_at'] ?: null;
 
         if (isset($data['locale'])) {
             $data['locale'] = implode(',', $data['locale']);
         }
 
-        if ( is_null(request()->image)) {
+        if (is_null(request()->image)) {
             session()->flash('error', trans('admin::app.settings.sliders.update-fail'));
 
             return redirect()->back();
@@ -144,14 +148,14 @@ class SliderController extends Controller
     }
 
     /**
-     * Delete a slider item and preserve the last one from deleting
+     * Delete the slider item and preserve the last one from deleting.
      *
      * @param  int  $id
      * @return \Illuminate\Http\Response
      */
     public function destroy($id)
     {
-        $slider = $this->sliderRepository->findOrFail($id);
+        $this->sliderRepository->findOrFail($id);
 
         try {
             $this->sliderRepository->delete($id);
@@ -159,10 +163,10 @@ class SliderController extends Controller
             session()->flash('success', trans('admin::app.response.delete-success', ['name' => 'Slider']));
 
             return response()->json(['message' => true], 200);
-        } catch(\Exception $e) {
+        } catch (\Exception $e) {
             session()->flash('error', trans('admin::app.response.delete-failed', ['name' => 'Slider']));
         }
 
         return response()->json(['message' => false], 400);
     }
-}
\ No newline at end of file
+}