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app/Http/Controllers/Post/PostController.php

@@ -166,7 +166,7 @@ class PostController extends Controller
             'video' => 'required_if:type,video|string|url',
             'video_id' => 'required_if:type,video|string',
             'topic_ids' => 'required|string|max:64',
-            'title' => 'nullable|string|max:20',
+            'title' => 'required_if:type,html|string|max:20',
             'content' => 'required|string',
             'location' => 'nullable|string|max:20',
             'imgs' => 'required_if:type,image|array|max:9',