fix dummy crud in demo

Author: pxpm

app/Http/Controllers/Admin/DummyCrudController.php

@@ -73,7 +73,7 @@ protected function setupCreateOperation()
                 'type'     => 'repeatable',
                 'fake'     => true,
                 'store_in' => 'extras',
-                'fields'   => $groupFields,
+                'subfields'   => $groupFields,
             ]);
         }
     }

app/Models/Dummy.php

@@ -76,6 +76,11 @@ public function articles()
         return $this->belongsToMany(\Backpack\NewsCRUD\app\Models\Article::class, 'monster_article', 'monster_id', 'article_id');
     }
 
+    public function categorySelect2()
+    {
+        return $this->belongsTo(\Backpack\NewsCRUD\app\Models\Category::class, 'select2');
+    }
+
     /*
     |--------------------------------------------------------------------------
     | SCOPES