"Needs Approval" page giving Server Error : 500

Support
1

Hi! We use Discourse over at https://discuss.erpnext.com

We’re getting an issue since several days, updating won’t fix it :

NoMethodError (undefined method `trust_level' for nil:NilClass)
/var/www/discourse/app/serializers/queued_post_serializer.rb:33:in `include_can_delete_user?'

Traceback:

/var/www/discourse/app/serializers/queued_post_serializer.rb:33:in `include_can_delete_user?'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/serializer.rb:374:in `include?'
(eval):14:in `_fast_attributes'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/serializer.rb:467:in `rescue in attributes'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/serializer.rb:455:in `attributes'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/serializer.rb:479:in `_serializable_hash'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/serializer.rb:361:in `serializable_hash'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/array_serializer.rb:89:in `block in _serializable_array'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/array_serializer.rb:79:in `map'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/array_serializer.rb:79:in `_serializable_array'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/array_serializer.rb:73:in `serializable_array'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/active_model_serializers-0.8.3/lib/active_model/array_serializer.rb:49:in `as_json'
/var/www/discourse/app/controllers/application_controller.rb:258:in `serialize_data'
/var/www/discourse/app/controllers/application_controller.rb:269:in `render_serialized'
/var/www/discourse/app/controllers/queued_posts_controller.rb:12:in `index'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/abstract_controller/base.rb:198:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/rendering.rb:10:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/abstract_controller/callbacks.rb:20:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:117:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:117:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:81:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/abstract_controller/callbacks.rb:19:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/rescue.rb:29:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/notifications.rb:164:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/notifications.rb:164:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.6/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/abstract_controller/base.rb:137:in `process'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionview-4.2.6/lib/action_view/rendering.rb:30:in `process'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-mini-profiler-0.9.9.2/lib/mini_profiler/profiling_methods.rb:76:in `block in profile_method'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal.rb:196:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_controller/metal.rb:237:in `block in action'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:74:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:43:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/mapper.rb:49:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:43:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:30:in `each'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:30:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:817:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-protection-1.5.3/lib/rack/protection/frame_options.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:186:in `call!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:164:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:186:in `call!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:164:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:186:in `call!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:164:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:186:in `call!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:164:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:186:in `call!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:164:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:186:in `call!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/strategy.rb:164:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/omniauth-1.3.1/lib/omniauth/builder.rb:63:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/conditionalget.rb:25:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/head.rb:13:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:129:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/flash.rb:260:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/session/abstract/id.rb:225:in `context'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/session/abstract/id.rb:220:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/cookies.rb:560:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.6/lib/active_record/query_cache.rb:36:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:88:in `__run_callbacks__'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:81:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/logster-1.2.3/lib/logster/middleware/reporter.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/railties-4.2.6/lib/rails/rack/logger.rb:38:in `call_app'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/railties-4.2.6/lib/rails/rack/logger.rb:22:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:13:in `call_with_quiet_assets'
/var/www/discourse/config/initializers/100-silence_logger.rb:26:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionpack-4.2.6/lib/action_dispatch/middleware/request_id.rb:21:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/methodoverride.rb:22:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/runtime.rb:18:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/sendfile.rb:113:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-mini-profiler-0.9.9.2/lib/mini_profiler/profiler.rb:167:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/message_bus-2.0.0.beta.8/lib/message_bus/rack/middleware.rb:62:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:73:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/railties-4.2.6/lib/rails/engine.rb:518:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/railties-4.2.6/lib/rails/application.rb:165:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/railties-4.2.6/lib/rails/railtie.rb:194:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/railties-4.2.6/lib/rails/railtie.rb:194:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/urlmap.rb:66:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/urlmap.rb:50:in `each'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/urlmap.rb:50:in `call'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:562:in `process_client'
/var/www/discourse/lib/scheduler/defer.rb:85:in `process_client'
/var/www/discourse/lib/middleware/unicorn_oobgc.rb:95:in `process_client'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:658:in `worker_loop'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:508:in `spawn_missing_workers'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:519:in `maintain_worker_count'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:283:in `join'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/bin/unicorn:126:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.0.0/bin/unicorn:22:in `load'
/var/www/discourse/vendor/bundle/ruby/2.0.0/bin/unicorn:22:in `<main>'

I’m not well versed with Ruby on Rails / Ruby, but it seems the user object is is not being passed / is null?

2

Can you repro this @techapj?

1 Like
3

I am unable to repro this issue. Approved posts are going though just fine, and rejecting the post also works.

@vjFaLk is this issue happening for specific user? Is that user still active on your forum?

3 Likes
4

None of the mods / admins (including me) are able to access the page, it seems.

5

@techAPJ

Perhaps you can point me in the right direction with what could possibly be causing this issue?

7

So that means the user is deleted? If that’s the case, we should delete user’s queued posts as well.

1 Like
8

How can I find out which user is causing this issue and remove the queued posts for that user?

9

When you said:

Which page are you talking about? Is that user page that you are not able to access?

If you are unable to access user Admin page, then it means user is deleted and we should amend the code to delete user’s queued post to prevent this issue in future.

I want to troubleshoot this issue first, please answer this question:

Are you unable to delete all queued posts or just queued posts for a specific user?

1 Like
10

Oh I’m sorry if I wasn’t specific enough. The page we can’t access is the one where it’s supposed to show a list of posts that are pending for approval. Refer to the image below.

Image 2

3 Likes
12

Okay, I see your issue now. I will try to repro this issue locally by deleting a user and verifying if the queued posts gets deleted or not.

Thanks for clarifying.

3 Likes
13

I just verified that deleting a user does delete user’s queued posts.

@vjFaLk to resolve your issue, I pushed a fix that will not raise server error when opening “Needs Approval” page:

https://github.com/discourse/discourse/commit/e2df79ee9e8d93dd1af25a0b360ddbd352ef3232

Updating your instance to latest should fix this issue.

I am still interested in knowing how your instance got into this state, see if you see anything odd on “Needs Approval” page. A post without user sounds strange.

3 Likes
14

Awesome, thanks!

I am still interested in knowing how your instance got into this state, see if you see anything odd on “Needs Approval” page. A post without user sounds strange.

Yea, it’s strange. But, before you replied, we did a fix ourselves and removed all the queued posts without much scrutiny (all of them were spam). So, it’s a little too late for that :sweat_smile:

1 Like
15

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