pre version 2

app/Http/Controllers/EventoController.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Http\Controllers;
 
 use App\Models\Evento;
@@ -630,4 +632,39 @@ class EventoController extends Controller
 
         return redirect('/eventi')->with('success', $message);
     }
+
+    public function massTag(Request $request)
+    {
+        $this->authorizeWrite('eventi');
+        $idsInput = $request->input('ids', '');
+        $ids = is_array($idsInput) ? $idsInput : (is_string($idsInput) ? explode(',', $idsInput) : []);
+
+        if (empty($ids)) {
+            return back()->with('error', 'Nessun evento selezionato.');
+        }
+
+        $data = $request->validate([
+            'tags' => 'required|array',
+            'tags.*' => 'exists:tags,id',
+            'mode' => 'required|in:assign,remove',
+        ]);
+
+        $tagIds = $data['tags'];
+        $mode = $data['mode'];
+        $count = 0;
+
+        Evento::whereIn('id', $ids)->chunk(100, function ($eventi) use ($tagIds, $mode, &$count) {
+            foreach ($eventi as $evento) {
+                if ($mode === 'assign') {
+                    $evento->tags()->syncWithoutDetaching($tagIds);
+                } else {
+                    $evento->tags()->detach($tagIds);
+                }
+                $count++;
+            }
+        });
+
+        $actionLabel = $mode === 'assign' ? 'assegnati' : 'rimossi';
+        return back()->with('success', "Tag $actionLabel per $count eventi.");
+    }
 }