Update DownloadController.php (#1267)

* Update DownloadController.php

* StyleFix

* Another StyleFix !

* Update DownloadController.php

* Last StyleFix and Update

* Apply StyleCI fix

Co-authored-by: Nabeel Shahzad <nabeel@nabeel.sh>

app/Http/Controllers/Frontend/DownloadController.php

@@ -41,6 +41,8 @@ class DownloadController extends Controller
             $klass = new $class();
             $obj = $klass->find($id);
 
+            // Check if the object is there first
+            if (isset($obj)) {
                 $category = explode('\\', $class);
                 $category = end($category);
 
@@ -58,6 +60,7 @@ class DownloadController extends Controller
 
                 $regrouped_files[$group_name] = $files;
             }
+        }
 
         ksort($regrouped_files, SORT_STRING);
 

resources/lang/zh/aircraft.php

@@ -0,0 +1 @@
+        'stored'   => '保存',