排序

backend/community/admin.py

@@ -202,16 +202,16 @@ class TopicAdmin(OrderableAdminMixin, ModelAdmin):
     inlines = [TopicMediaInline, ReplyInline]
     actions = ['reset_ordering']
 
-    @admin.action(description="重置排序 (按ID顺序)")
+    @admin.action(description="重置排序 (按发布时间倒序)")
     def reset_ordering(self, request, queryset):
         """
-        将所有帖子按ID顺序重新分配order值
+        将所有帖子按时间倒序重新分配order值（order = -id）
         """
-        all_objects = Topic.objects.all().order_by('id')
-        for index, obj in enumerate(all_objects, start=1):
-            obj.order = index
+        all_objects = Topic.objects.all().order_by('-id')
+        for obj in all_objects:
+            obj.order = -obj.id
             obj.save(update_fields=['order'])
-        self.message_user(request, f"成功重置了 {all_objects.count()} 个帖子的排序权重。")
+        self.message_user(request, f"成功重置了 {all_objects.count()} 个帖子的排序权重（新帖子在前）。")
     
     fieldsets = (
         ('帖子内容', {