Getting NameError (uninitialized constant DataExplorer::Poll) while enabling Data explorer plugin

Hi Team,

Getting NameError (uninitialized constant DataExplorer::Poll) while enabling Data explorer plugin.

We are using bitnami discourse image for running forum, And trying to install discourse-data-explorer. Plugin data-explorer got enabled but on clicking the tab “Data Explorer” (which exactly below the plugins tab after we enabled the discourse-data-explorer) it is giving 500 error for path “/admin/plugins/explorer/schema.json” followed by name error in above screenshot.

More Details:

  1. Used image and discourse versions: from discourse:2.8.3-debian-10-r24 till discourse:2.8.13-debian-11-r2 (tried on all versions in given range but faced similar error)

  2. Image source: “/hub.docker.com/layers/bitnami/discourse/2.8.13-debian-11-r2/images/sha256-f0b848d6fa20b1faac282a85a929e8b45dadcfbd44f3b764a136d538a6dcf9cf?context=explore”

  3. Backtrace logs of */logs/

plugins/discourse-data-explorer/plugin.rb:384:in `enums'
plugins/discourse-data-explorer/plugin.rb:435:in `enum_info'
plugins/discourse-data-explorer/plugin.rb:332:in `block in schema'
plugins/discourse-data-explorer/plugin.rb:301:in `each'
plugins/discourse-data-explorer/plugin.rb:301:in `schema'
/bitnami/discourse/plugins/discourse-data-explorer/app/controllers/data_explorer/query_controller.rb:114:in `schema'
actionpack (6.1.6.1) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
actionpack (6.1.6.1) lib/abstract_controller/base.rb:228:in `process_action'
actionpack (6.1.6.1) lib/action_controller/metal/rendering.rb:30:in `process_action'
actionpack (6.1.6.1) lib/abstract_controller/callbacks.rb:42:in `block in process_action'
activesupport (6.1.6.1) lib/active_support/callbacks.rb:117:in `block in run_callbacks'
app/controllers/application_controller.rb:387:in `block in with_resolved_locale'
i18n (1.8.11) lib/i18n.rb:314:in `with_locale'
app/controllers/application_controller.rb:387:in `with_resolved_locale'
activesupport (6.1.6.1) lib/active_support/callbacks.rb:126:in `block in run_callbacks'
activesupport (6.1.6.1) lib/active_support/callbacks.rb:137:in `run_callbacks'
actionpack (6.1.6.1) lib/abstract_controller/callbacks.rb:41:in `process_action'
actionpack (6.1.6.1) lib/action_controller/metal/rescue.rb:22:in `process_action'
actionpack (6.1.6.1) lib/action_controller/metal/instrumentation.rb:34:in `block in process_action'
activesupport (6.1.6.1) lib/active_support/notifications.rb:203:in `block in instrument'
activesupport (6.1.6.1) lib/active_support/notifications/instrumenter.rb:24:in `instrument'
activesupport (6.1.6.1) lib/active_support/notifications.rb:203:in `instrument'
actionpack (6.1.6.1) lib/action_controller/metal/instrumentation.rb:33:in `process_action'
actionpack (6.1.6.1) lib/action_controller/metal/params_wrapper.rb:249:in `process_action'
activerecord (6.1.6.1) lib/active_record/railties/controller_runtime.rb:27:in `process_action'
actionpack (6.1.6.1) lib/abstract_controller/base.rb:165:in `process'
actionview (6.1.6.1) lib/action_view/rendering.rb:39:in `process'
rack-mini-profiler (2.3.3) lib/mini_profiler/profiling_methods.rb:85:in `block in profile_method'
actionpack (6.1.6.1) lib/action_controller/metal.rb:190:in `dispatch'
actionpack (6.1.6.1) lib/action_controller/metal.rb:254:in `dispatch'
actionpack (6.1.6.1) lib/action_dispatch/routing/route_set.rb:50:in `dispatch'
actionpack (6.1.6.1) lib/action_dispatch/routing/route_set.rb:33:in `serve'
actionpack (6.1.6.1) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (6.1.6.1) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (6.1.6.1) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (6.1.6.1) lib/action_dispatch/routing/route_set.rb:842:in `call'
railties (6.1.6.1) lib/rails/engine.rb:539:in `call'
railties (6.1.6.1) lib/rails/railtie.rb:207:in `public_send'
railties (6.1.6.1) lib/rails/railtie.rb:207:in `method_missing'
actionpack (6.1.6.1) lib/action_dispatch/routing/mapper.rb:20:in `block in <class:Constraints>'
actionpack (6.1.6.1) lib/action_dispatch/routing/mapper.rb:49:in `serve'
actionpack (6.1.6.1) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (6.1.6.1) lib/action_dispatch/journey/router.rb:32:in `each'
actionpack (6.1.6.1) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (6.1.6.1) lib/action_dispatch/routing/route_set.rb:842:in `call'
lib/middleware/omniauth_bypass_middleware.rb:71:in `call'
rack (2.2.3) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.3) lib/rack/conditional_get.rb:27:in `call'
rack (2.2.3) lib/rack/head.rb:12:in `call'
actionpack (6.1.6.1) lib/action_dispatch/http/permissions_policy.rb:22:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:361:in `call'
rack (2.2.3) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.3) lib/rack/session/abstract/id.rb:260:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/cookies.rb:689:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
activesupport (6.1.6.1) lib/active_support/callbacks.rb:98:in `run_callbacks'
actionpack (6.1.6.1) lib/action_dispatch/middleware/callbacks.rb:26:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/actionable_exceptions.rb:18:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/debug_exceptions.rb:29:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
logster (2.10.1) lib/logster/middleware/reporter.rb:43:in `call'
railties (6.1.6.1) lib/rails/rack/logger.rb:37:in `call_app'
railties (6.1.6.1) lib/rails/rack/logger.rb:28:in `call'
config/initializers/100-quiet_logger.rb:23:in `call'
config/initializers/100-silence_logger.rb:31:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/request_id.rb:26:in `call'
lib/middleware/enforce_hostname.rb:23:in `call'
rack (2.2.3) lib/rack/method_override.rb:24:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/executor.rb:14:in `call'
rack (2.2.3) lib/rack/sendfile.rb:110:in `call'
actionpack (6.1.6.1) lib/action_dispatch/middleware/host_authorization.rb:142:in `call'
rack-mini-profiler (2.3.3) lib/mini_profiler/profiler.rb:249:in `call'
message_bus (4.0.0) lib/message_bus/rack/middleware.rb:60:in `call'
lib/middleware/request_tracker.rb:198:in `call'
railties (6.1.6.1) lib/rails/engine.rb:539:in `call'
railties (6.1.6.1) lib/rails/railtie.rb:207:in `public_send'
railties (6.1.6.1) lib/rails/railtie.rb:207:in `method_missing'
rack (2.2.3) lib/rack/urlmap.rb:74:in `block in call'
rack (2.2.3) lib/rack/urlmap.rb:58:in `each'
rack (2.2.3) lib/rack/urlmap.rb:58:in `call'
passenger (6.0.15) src/ruby_supportlib/phusion_passenger/rack/thread_handler_extension.rb:107:in `process_request'
passenger (6.0.15) src/ruby_supportlib/phusion_passenger/request_handler/thread_handler.rb:149:in `accept_and_process_next_request'
passenger (6.0.15) src/ruby_supportlib/phusion_passenger/request_handler/thread_handler.rb:110:in `main_loop'
passenger (6.0.15) src/ruby_supportlib/phusion_passenger/request_handler.rb:419:in `block (3 levels) in start_threads'
passenger (6.0.15) src/ruby_supportlib/phusion_passenger/utils.rb:113:in `block in create_thread_and_abort_on_exception'
  1. Info of */logs/
NameError (uninitialized constant DataExplorer::Poll)
app/controllers/application_controller.rb:387:in `block in with_resolved_locale'
app/controllers/application_controller.rb:387:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:71:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:361:in `call'
config/initializers/100-quiet_logger.rb:23:in `call'
config/initializers/100-silence_logger.rb:31:in `call'
lib/middleware/enforce_hostname.rb:23:in `call'
lib/middleware/request_tracker.rb:198:in `call'
  1. FYI Using older commit of discourse-data-explorer i.e. 92bdea38b2af1b4e04f4c52d1bd34550d553f66b. When we used the latest commit got error, mentioned in “Unable to install Data Explorer Plugin last version”!

Here all other apis are working fine like */admin/plugins/explorer/groups.json and */admin/plugins/explorer/queries only */admin/plugins/explorer/schema.json is giving 500!

Does anyone faced similar kind of issue or Can anyone help on this?

Thanks…

I think you might need to get the plugin on the stable branch. I don’t know how to do that with Bitnami.

1 Like

I can render admin/plugins/explorer/schema.json without error on the latest version of the plugin. As Jay mentioned, I would recommend using the main branch.

1 Like