new: add `duplicate` button for articles

app/Http/Controllers/Admin/Shop/ArticleController.php

@@ -63,6 +63,17 @@ class ArticleController extends Controller
         return view('Admin.Shop.Articles.edit', $data);
     }
 
+    public function duplicate($id)
+    {
+        $data = Articles::getFull($id);
+        // Prepare for creation: blank id/slug, tweak name to indicate copy
+        $data['article']['id'] = null;
+        $data['article']['slug'] = null;
+        $data['article']['name'] = ($data['article']['name'] ?? '').' (copie)';
+
+        return view('Admin.Shop.Articles.create', $data);
+    }
+
     public function destroy($id)
     {
         return Articles::destroy($id);