启用嵌套回复和帖子投票时发生错误

cuo_wu · 2026 年5 月 23 日 14:15

当我启用嵌套回复和帖子投票，并将帖子转换为嵌套回复视图时，出现了 500 错误。

NoMethodError (undefined method 'post_number' for nil) lib/nested_replies/post_tree_serializer.rb:88:in 'NestedReplies::PostTreeSerializer#topic_view_json' lib/nested_replies/post_tree_serializer.rb:2

NoMethodError (undefined method 'post_number' for nil)
lib/nested_replies/post_tree_serializer.rb:88:in 'NestedReplies::PostTreeSerializer#topic_view_json'
lib/nested_replies/post_tree_serializer.rb:20:in 'NestedReplies::PostTreeSerializer#serialize_topic'
app/services/nested_topic/list_roots.rb:124:in 'NestedTopic::ListRoots#enrich_with_topic_metadata'
lib/service/base/step.rb:43:in 'BasicObject#instance_exec'
lib/service/base/step.rb:43:in 'Service::Base::Step#run_step'
lib/service/base/step.rb:21:in 'block in Service::Base::Step#call'
lib/service/base/step.rb:52:in 'Service::Base::Step#with_runtime'
lib/service/base/step.rb:21:in 'Service::Base::Step#call'
lib/service/base/only_if_step.rb:19:in 'block in Service::Base::OnlyIfStep#run_step'
lib/service/base/only_if_step.rb:19:in 'Array#each'
lib/service/base/only_if_step.rb:19:in 'Service::Base::OnlyIfStep#run_step'
lib/service/base/step.rb:21:in 'block in Service::Base::Step#call'
lib/service/base/step.rb:52:in 'Service::Base::Step#with_runtime'
lib/service/base/step.rb:21:in 'Service::Base::Step#call'
lib/service/base.rb:260:in 'block in Service::Base#run!'
lib/service/base.rb:260:in 'Array#each'
lib/service/base.rb:260:in 'Service::Base#run!'
lib/service/base.rb:253:in 'Service::Base#run'
lib/service/base.rb:226:in 'Service::Base::ClassMethods#call'
lib/service/runner.rb:152:in 'Service::Runner#result'
lib/service/runner.rb:137:in 'Service::Runner#call'
lib/service/runner.rb:132:in 'Service::Runner.call'
lib/service/base.rb:227:in 'Service::Base::ClassMethods#call'
app/controllers/nested_topics_controller.rb:146:in 'NestedTopicsController#list_roots_response'
app/controllers/nested_topics_controller.rb:23:in 'NestedTopicsController#show'
app/controllers/application_controller.rb:452:in 'block in ApplicationController#with_resolved_locale'
app/controllers/application_controller.rb:452:in 'ApplicationController#with_resolved_locale'
app/controllers/application_controller.rb:1101:in 'ApplicationController#ensure_d...

plugins/discourse-post-voting/extensions/topic_view_extension.rb:88:in 'PostVoting::TopicViewExtension#next_page'
plugins/discourse-ai/lib/embeddings/entry_point.rb:41:in 'block (2 levels) in TopicViewSerializer#inject_into'
(eval at active_model_serializers-0.8.4/lib/active_model/serializer.rb:467):89:in 'TopicViewSerializer#_fast_attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:468:in 'ActiveModel::Serializer#attributes'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:480:in 'ActiveModel::Serializer#_serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:359:in 'ActiveModel::Serializer#serializable_hash'
active_model_serializers (0.8.4) lib/active_model/serializer.rb:347:in 'ActiveModel::Serializer#as_json'
lib/nested_replies/post_tree_serializer.rb:88:in 'NestedReplies::PostTreeSerializer#topic_view_json'
lib/nested_replies/post_tree_serializer.rb:20:in 'NestedReplies::PostTreeSerializer#serialize_topic'
app/services/nested_topic/list_roots.rb:124:in 'NestedTopic::ListRoots#enrich_with_topic_metadata'
lib/service/base/step.rb:43:in 'BasicObject#instance_exec'
lib/service/base/step.rb:43:in 'Service::Base::Step#run_step'
lib/service/base/step.rb:21:in 'block in Service::Base::Step#call'
lib/service/base/step.rb:52:in 'Service::Base::Step#with_runtime'
lib/service/base/step.rb:21:in 'Service::Base::Step#call'
lib/service/base/only_if_step.rb:19:in 'block in Service::Base::OnlyIfStep#run_step'
lib/service/base/only_if_step.rb:19:in 'Array#each'
lib/service/base/only_if_step.rb:19:in 'Service::Base::OnlyIfStep#run_step'
lib/service/base/step.rb:21:in 'block in Service::Base::Step#call'
lib/service/base/step.rb:52:in 'Service::Base::Step#with_runtime'
lib/service/base/step.rb:21:in 'Service::Base::Step#call'
lib/service/base.rb:260:in 'block in Service::Base#run!'
lib/service/base.rb:260:in 'Array#each'
lib/service/base.rb:260:in 'Service::Base#run!'
lib/service/base.rb:253:in 'Service::Base#run'
<internal:kernel>:91:in 'Kernel#tap'
lib/service/base.rb:226:in 'Service::Base::ClassMethods#call'
lib/service/runner.rb:152:in 'Service::Runner#result'
lib/service/runner.rb:137:in 'Service::Runner#call'
lib/service/runner.rb:132:in 'Service::Runner.call'
lib/service/base.rb:227:in 'Service::Base::ClassMethods#call'
app/controllers/nested_topics_controller.rb:146:in 'NestedTopicsController#list_roots_response'
app/controllers/nested_topics_controller.rb:23:in 'NestedTopicsController#show'
actionpack (8.0.5) lib/action_controller/metal/basic_implicit_render.rb:8:in 'ActionController::BasicImplicitRender#send_action'
actionpack (8.0.5) lib/abstract_controller/base.rb:215:in 'AbstractController::Base#process_action'
actionpack (8.0.5) lib/action_controller/metal/rendering.rb:193:in 'ActionController::Rendering#process_action'
actionpack (8.0.5) lib/abstract_controller/callbacks.rb:261:in 'block in AbstractController::Callbacks#process_action'
activesupport (8.0.5) lib/active_support/callbacks.rb:120:in 'block in ActiveSupport::Callbacks#run_callbacks'
app/controllers/application_controller.rb:452:in 'block in ApplicationController#with_resolved_locale'
i18n (1.14.8) lib/i18n.rb:354:in 'I18n::Base#with_locale'
app/controllers/application_controller.rb:452:in 'ApplicationController#with_resolved_locale'
activesupport (8.0.5) lib/active_support/callbacks.rb:129:in 'block in ActiveSupport::Callbacks#run_callbacks'
app/controllers/application_controller.rb:1101:in 'ApplicationController#ensure_dont_cache_page'
activesupport (8.0.5) lib/active_support/callbacks.rb:129:in 'block in ActiveSupport::Callbacks#run_callbacks'
activesupport (8.0.5) lib/active_support/callbacks.rb:140:in 'ActiveSupport::Callbacks#run_callbacks'
actionpack (8.0.5) lib/abstract_controller/callbacks.rb:260:in 'AbstractController::Callbacks#process_action'
actionpack (8.0.5) lib/action_controller/metal/rescue.rb:27:in 'ActionController::Rescue#process_action'
actionpack (8.0.5) lib/action_controller/metal/instrumentation.rb:76:in 'block in ActionController::Instrumentation#process_action'
activesupport (8.0.5) lib/active_support/notifications.rb:210:in 'block in ActiveSupport::Notifications.instrument'
activesupport (8.0.5) lib/active_support/notifications/instrumenter.rb:58:in 'ActiveSupport::Notifications::Instrumenter#instrument'
activesupport (8.0.5) lib/active_support/notifications.rb:210:in 'ActiveSupport::Notifications.instrument'
actionpack (8.0.5) lib/action_controller/metal/instrumentation.rb:75:in 'ActionController::Instrumentation#process_action'
actionpack (8.0.5) lib/action_controller/metal/params_wrapper.rb:259:in 'ActionController::ParamsWrapper#process_action'
activerecord (8.0.5) lib/active_record/railties/controller_runtime.rb:39:in 'ActiveRecord::Railties::ControllerRuntime#process_action'
actionpack (8.0.5) lib/abstract_controller/base.rb:152:in 'AbstractController::Base#process'
actionview (8.0.5) lib/action_view/rendering.rb:40:in 'ActionView::Rendering#process'
rack-mini-profiler (4.0.1) lib/mini_profiler/profiling_methods.rb:90:in 'block in ActionController::Base#profile_method' 
actionpack (8.0.5) lib/action_controller/metal.rb:252:in 'ActionController::Metal#dispatch'
actionpack (8.0.5) lib/action_controller/metal.rb:335:in 'ActionController::Metal.dispatch'
actionpack (8.0.5) lib/action_dispatch/routing/route_set.rb:67:in 'ActionDispatch::Routing::RouteSet::Dispatcher#dispatch'
actionpack (8.0.5) lib/action_dispatch/routing/route_set.rb:50:in 'ActionDispatch::Routing::RouteSet::Dispatcher#serve'
actionpack (8.0.5) lib/action_dispatch/journey/router.rb:53:in 'block in ActionDispatch::Journey::Router#serve'
actionpack (8.0.5) lib/action_dispatch/journey/router.rb:133:in 'block in ActionDispatch::Journey::Router#find_routes'
actionpack (8.0.5) lib/action_dispatch/journey/router.rb:126:in 'Array#each'
actionpack (8.0.5) lib/action_dispatch/journey/router.rb:126:in 'ActionDispatch::Journey::Router#find_routes'
actionpack (8.0.5) lib/action_dispatch/journey/router.rb:34:in 'ActionDispatch::Journey::Router#serve'
actionpack (8.0.5) lib/action_dispatch/routing/route_set.rb:908:in 'ActionDispatch::Routing::RouteSet#call'
lib/middleware/omniauth_bypass_middleware.rb:35:in 'Middleware::OmniauthBypassMiddleware#call'
lib/middleware/crawler_hooks.rb:13:in 'Middleware::CrawlerHooks#call'
rack (2.2.23) lib/rack/tempfile_reaper.rb:15:in 'Rack::TempfileReaper#call'
rack (2.2.23) lib/rack/conditional_get.rb:27:in 'Rack::ConditionalGet#call'
rack (2.2.23) lib/rack/head.rb:12:in 'Rack::Head#call'
actionpack (8.0.5) lib/action_dispatch/http/permissions_policy.rb:38:in 'ActionDispatch::PermissionsPolicy::Middleware#call'
lib/content_security_policy/middleware.rb:12:in 'ContentSecurityPolicy::Middleware#call'
lib/middleware/anonymous_cache.rb:417:in 'Middleware::AnonymousCache#call'
lib/middleware/csp_script_nonce_injector.rb:12:in 'Middleware::CspScriptNonceInjector#call'
lib/middleware/track_view_session_id_injector.rb:12:in 'Middleware::TrackViewSessionIdInjector#call'
config/initializers/008-rack-cors.rb:26:in 'Discourse::Cors#call'
rack (2.2.23) lib/rack/session/abstract/id.rb:266:in 'Rack::Session::Abstract::Persisted#context'
rack (2.2.23) lib/rack/session/abstract/id.rb:260:in 'Rack::Session::Abstract::Persisted#call'
actionpack (8.0.5) lib/action_dispatch/middleware/cookies.rb:706:in 'ActionDispatch::Cookies#call'
actionpack (8.0.5) lib/action_dispatch/middleware/callbacks.rb:31:in 'block in ActionDispatch::Callbacks#call'
activesupport (8.0.5) lib/active_support/callbacks.rb:100:in 'ActiveSupport::Callbacks#run_callbacks'
actionpack (8.0.5) lib/action_dispatch/middleware/callbacks.rb:30:in 'ActionDi

Lilly · 2026 年5 月 23 日 15:36

嵌套回复和帖子投票可能尚不兼容

markvanlan · 2026 年5 月 26 日 13:11

是的——我认为目前最好的解决方案是在帖子投票插件中添加一些检查，以便在话题启用嵌套回复时跳过相关逻辑。本质上，就是明确让该插件与嵌套回复不兼容。

另外，如果能有一个“转换为嵌套回复”的模式用于帖子投票那就太好了。我猜会有一部分使用帖子投票的用户希望直接切换到嵌套回复。

markvanlan · 2026 年5 月 26 日 14:03

@Falco 已为嵌套主题禁用帖子投票 DEV: Disable post voting plugin on nested replies topics · Pull Request #40305 · discourse/discourse

Falco · 2026 年5 月 26 日 15:59

你看到这个了吗？

github.com/discourse/discourse

FIX: post-voting topics failed to load in nested view (#40187)

main ← small-lovely-cat:fix-post-voting-nested

opened 08:10AM - 20 May 26 UTC

small-lovely-cat

+42 -4

When posting a post-voting topic using `discourse-post-voting` plugin, and openi…ng it in nested view, the page render failed. In devcontainer, the page throw an unrecoverable render error. And in production, the server returned 500 error. This issue stems from the `shouldRender` reading `topicPageQueryParams` unguarded, in nested view, the connector failed. This commit solved this by adding a guard to that. Also add some specs to avoid regression. Before: <img width="1917" height="912" alt="image" src="https://github.com/user-attachments/assets/1ebb901f-a3c6-43a5-8a72-76cb7bae13be" /> After: <img width="1917" height="926" alt="image" src="https://github.com/user-attachments/assets/a35ef924-5481-475b-8ca1-88557fe437b6" /> Also solved an issue preventing the textarea triggered by clicking `Add a comment` button from focusing in nested view.

markvanlan · 2026 年5 月 26 日 16:06

我还没有，不！我仍然倾向于禁用嵌套回复的帖子投票功能，因为它们非常相似，这样可以确保不会出现进一步的兼容性问题：

small-lovely-cat · 2026 年5 月 26 日 21:29

它们似乎有一个相似的功能……

但帖子投票具有对帖子表示同意或反对的功能。如果用户默认使用嵌套视图，打开一个帖子投票主题后却发现无法投票，而其他使用平铺视图的用户却可以，这可能会让他们感到困惑。

也许，添加支持是一个更好的主意？对此我也不太确定。

markvanlan · 2026 年5 月 27 日 13:22

目前我将为嵌套回复禁用该功能。未来我们可以考虑在嵌套回复中直接构建点赞/点踩功能，使其成为帖子投票更直接、更优质的替代方案。

cuo_wu · 2026 年5 月 27 日 15:25

这是更好的方法，在嵌套回复中加 vote 功能，这样 top 排序也更有意义。

cuo_wu · 2026 年5 月 27 日 15:34

是的，其实不管是不是嵌套回复，都应该有vote 功能才对。我目前对 post vote 和 nest view 做了一些改动。

话题		回复	浏览量
Introducing nested replies Announcements nested-replies	37	1461	2026 年5 月 30 日
Testing Nested Replies on Meta Nested Replies Testing	117	1660	2026 年5 月 28 日
Some posts land as embedded replies, not answers Bug post-voting	10	752	2023 年9 月 11 日
Discourse Post Voting Plugin included-in-core , official , post-voting	39	20693	2026 年1 月 12 日
Nested comments feature Support	4	219	2025 年10 月 31 日

启用嵌套回复和帖子投票时发生错误

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