Upgrade export function to new version of "Maatwebsite\Excel"

src/controllers/ExportImportController.php

@@ -4,25 +4,18 @@
 
 use Illuminate\Routing\Controller;
 use Illuminate\Support\Facades\Input;
+use Maatwebsite\Excel\Facades\Excel;
 
 class ExportImportController extends Controller {
 
     protected $failed = false;
 
     public function export($entity, $fileType) {
-
-        $appHelper = new libs\AppHelper();
-
-	$className = $appHelper->getModel($entity);
-	$data      = $className::get();
-	if (strcmp($fileType, "excel") == 0) {
-		$excel = \App::make('Excel');
-		\Excel::create($entity, function($excel) use ($data) {
-			$excel->sheet('Sheet1', function($sheet) use ($data) {
-				$sheet->fromModel($data);
-			});
-		})->export('xls');
-	}
+        if (strcmp($fileType, "excel") == 0) {
+            $export = new EntityExport($entity);
+            return Excel::download($export, $entity.'.xlsx');
+        }
+        return \Redirect::to('panel/' . $entity . '/all')->with('export_message', "File type is not excel");
     }
 
     public function import($entity) {

src/models/EntityExport.php

@@ -0,0 +1,26 @@
+<?php
+
+
+namespace Serverfireteam\Panel;
+
+use Maatwebsite\Excel\Concerns\FromArray;
+use Serverfireteam\Panel\libs\AppHelper;
+
+class EntityExport implements FromArray
+{
+    protected $entity;
+
+    public function __construct($entity)
+    {
+        $this->entity = $entity;
+    }
+
+    public function array(): array
+    {
+        $appHelper = new libs\AppHelper();
+        $className = $appHelper->getModel($this->entity);
+        $data      = $className::all()->ToArray();
+        $data= json_decode( json_encode($data), true);
+        return $data;
+    }
+}