Ошибка регистрации: PG::UniqueViolation (ОШИБКА: дубликат ключа нарушает уникальное ограничение

Здравствуйте! На сайте никаких изменений не вносилось.

Новые пользователи начали сообщать об этой ошибке:

PG::UniqueViolation (ERROR: duplicate key value violates unique constraint "idx_category_users_category_id_user_id" DETAIL: Key (category_id, user_id)=(55, 1691) already exists. ) app/models/user.rb

Подробности:

Сообщение (2 копии)

PG::UniqueViolation (ERROR:  duplicate key value violates unique constraint "idx_category_users_category_id_user_id"
DETAIL:  Key (category_id, user_id)=(55, 1691) уже существует.
)
app/models/user.rb:1499:in `set_default_categories_preferences'
app/controllers/users_controller.rb:629:in `create'
app/controllers/application_controller.rb:358:in `block in with_resolved_locale'
app/controllers/application_controller.rb:358:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:68:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:354: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:22:in `call'
lib/middleware/request_tracker.rb:176:in `call'

Трассировка стека

rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:110:in `exec'
rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:110:in `async_exec'
mini_sql (0.3) lib/mini_sql/postgres/connection.rb:201:in `run'
mini_sql (0.3) lib/mini_sql/postgres/connection.rb:173:in `exec'
app/models/user.rb:1499:in `set_default_categories_preferences'
activesupport (6.0.3.3) lib/active_support/callbacks.rb:428:in `block in make_lambda'
activesupport (6.0.3.3) lib/active_support/callbacks.rb:238:in `block in halting_and_conditional'
activesupport (6.0.3.3) lib/active_support/callbacks.rb:517:in `block in invoke_after'
activesupport (6.0.3.3) lib/active_support/callbacks.rb:517:in `each'
activesupport (6.0.3.3) lib/active_support/callbacks.rb:517:in `invoke_after'

Окружение
rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:110:in `exec'

rack-mini-profiler (2.2.0) lib/patches/db/pg.rb:110:in `async_exec'

mini_sql (0.3) lib/mini_sql/postgres/connection.rb:201:in `run'

mini_sql (0.3) lib/mini_sql/postgres/connection.rb:173:in `exec'

app/models/user.rb:1499:in `set_default_categories_preferences'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:428:in `block in make_lambda'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:238:in `block in halting_and_conditional'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:517:in `block in invoke_after'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:517:in `each'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:517:in `invoke_after'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:136:in `run_callbacks'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:825:in `_run_create_callbacks'

activerecord (6.0.3.3) lib/active_record/callbacks.rb:331:in `_create_record'

activerecord (6.0.3.3) lib/active_record/timestamp.rb:110:in `_create_record'

activerecord (6.0.3.3) lib/active_record/persistence.rb:905:in `create_or_update'

activerecord (6.0.3.3) lib/active_record/callbacks.rb:327:in `block in create_or_update'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:135:in `run_callbacks'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:825:in `_run_save_callbacks'

activerecord (6.0.3.3) lib/active_record/callbacks.rb:327:in `create_or_update'

activerecord (6.0.3.3) lib/active_record/timestamp.rb:128:in `create_or_update'

activerecord (6.0.3.3) lib/active_record/persistence.rb:470:in `save'

activerecord (6.0.3.3) lib/active_record/validations.rb:47:in `save'

activerecord (6.0.3.3) lib/active_record/transactions.rb:314:in `block in save'

activerecord (6.0.3.3) lib/active_record/transactions.rb:375:in `block in with_transaction_returning_status'

activerecord (6.0.3.3) lib/active_record/connection_adapters/abstract/database_statements.rb:280:in `block in transaction'

activerecord (6.0.3.3) lib/active_record/connection_adapters/abstract/transaction.rb:280:in `block in within_new_transaction'

activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in synchronize'

activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'

activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'

activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'

activesupport (6.0.3.3) lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'

activerecord (6.0.3.3) lib/active_record/connection_adapters/abstract/transaction.rb:278:in `within_new_transaction'

activerecord (6.0.3.3) lib/active_record/connection_adapters/abstract/database_statements.rb:280:in `transaction'

activerecord (6.0.3.3) lib/active_record/transactions.rb:212:in `transaction'

activerecord (6.0.3.3) lib/active_record/transactions.rb:366:in `with_transaction_returning_status'

activerecord (6.0.3.3) lib/active_record/transactions.rb:314:in `save'

activerecord (6.0.3.3) lib/active_record/suppressor.rb:44:in `save'

app/controllers/users_controller.rb:629:in `create'

actionpack (6.0.3.3) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'

actionpack (6.0.3.3) lib/abstract_controller/base.rb:195:in `process_action'

actionpack (6.0.3.3) lib/action_controller/metal/rendering.rb:30:in `process_action'

actionpack (6.0.3.3) lib/abstract_controller/callbacks.rb:42:in `block in process_action'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:112:in `block in run_callbacks'

app/controllers/application_controller.rb:358:in `block in with_resolved_locale'

i18n (1.8.5) lib/i18n.rb:313:in `with_locale'

app/controllers/application_controller.rb:358:in `with_resolved_locale'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:121:in `block in run_callbacks'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:139:in `run_callbacks'

actionpack (6.0.3.3) lib/abstract_controller/callbacks.rb:41:in `process_action'

actionpack (6.0.3.3) lib/action_controller/metal/rescue.rb:22:in `process_action'

actionpack (6.0.3.3) lib/action_controller/metal/instrumentation.rb:33:in `block in process_action'

activesupport (6.0.3.3) lib/active_support/notifications.rb:180:in `block in instrument'

activesupport (6.0.3.3) lib/active_support/notifications/instrumenter.rb:24:in `instrument'

activesupport (6.0.3.3) lib/active_support/notifications.rb:180:in `instrument'

actionpack (6.0.3.3) lib/action_controller/metal/instrumentation.rb:32:in `process_action'

actionpack (6.0.3.3) lib/action_controller/metal/params_wrapper.rb:245:in `process_action'

activerecord (6.0.3.3) lib/active_record/railties/controller_runtime.rb:27:in `process_action'

actionpack (6.0.3.3) lib/abstract_controller/base.rb:136:in `process'

actionview (6.0.3.3) lib/action_view/rendering.rb:39:in `process'

rack-mini-profiler (2.2.0) lib/mini_profiler/profiling_methods.rb:85:in `block in profile_method'

actionpack (6.0.3.3) lib/action_controller/metal.rb:190:in `dispatch'

actionpack (6.0.3.3) lib/action_controller/metal.rb:254:in `dispatch'

actionpack (6.0.3.3) lib/action_dispatch/routing/route_set.rb:50:in `dispatch'

actionpack (6.0.3.3) lib/action_dispatch/routing/route_set.rb:33:in `serve'

actionpack (6.0.3.3) lib/action_dispatch/journey/router.rb:49:in `block in serve'

actionpack (6.0.3.3) lib/action_dispatch/journey/router.rb:32:in `each'

actionpack (6.0.3.3) lib/action_dispatch/journey/router.rb:32:in `serve'

actionpack (6.0.3.3) lib/action_dispatch/routing/route_set.rb:834:in `call'

lib/middleware/omniauth_bypass_middleware.rb:68:in `call'

rack (2.2.3) lib/rack/tempfile_reaper.rb:15:in `call'

rack (2.2.3) lib/rack/conditional_get.rb:40:in `call'

rack (2.2.3) lib/rack/head.rb:12:in `call'

lib/content_security_policy/middleware.rb:12:in `call'

lib/middleware/anonymous_cache.rb:354: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 (6.0.3.3) lib/action_dispatch/middleware/cookies.rb:648:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'

activesupport (6.0.3.3) lib/active_support/callbacks.rb:101:in `run_callbacks'

actionpack (6.0.3.3) lib/action_dispatch/middleware/callbacks.rb:26:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/debug_exceptions.rb:32:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'

logster (2.9.4) lib/logster/middleware/reporter.rb:43:in `call'

railties (6.0.3.3) lib/rails/rack/logger.rb:37:in `call_app'

railties (6.0.3.3) 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 (6.0.3.3) lib/action_dispatch/middleware/remote_ip.rb:81:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/request_id.rb:27:in `call'

lib/middleware/enforce_hostname.rb:22:in `call'

rack (2.2.3) lib/rack/method_override.rb:24:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/executor.rb:14:in `call'

rack (2.2.3) lib/rack/sendfile.rb:110:in `call'

actionpack (6.0.3.3) lib/action_dispatch/middleware/host_authorization.rb:76:in `call'

rack-mini-profiler (2.2.0) lib/mini_profiler/profiler.rb:246:in `call'

message_bus (3.3.4) lib/message_bus/rack/middleware.rb:61:in `call'

lib/middleware/request_tracker.rb:176:in `call'

railties (6.0.3.3) lib/rails/engine.rb:527:in `call'

railties (6.0.3.3) lib/rails/railtie.rb:190:in `public_send'

railties (6.0.3.3) lib/rails/railtie.rb:190: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'

unicorn (5.7.0) lib/unicorn/http_server.rb:632:in `process_client'

unicorn (5.7.0) lib/unicorn/http_server.rb:728:in `worker_loop'

unicorn (5.7.0) lib/unicorn/http_server.rb:548:in `spawn_missing_workers'

unicorn (5.7.0) lib/unicorn/http_server.rb:144:in `start'

unicorn (5.7.0) bin/unicorn:128:in `<top (required)>'

vendor/bundle/ruby/2.7.0/bin/unicorn:23:in `load'

vendor/bundle/ruby/2.7.0/bin/unicorn:23:in `<main>'

Я использую последнюю версию Discourse.

Пожалуйста, помогите исправить это.

Похоже, в ваших автоматических группах наблюдения есть дубликат. Не совсем понятно, как это возможно, но попробуйте сбросить настройку сайта для автоматического наблюдения.

Привет, Сэм, ты великолепен!

Я сам создал эту проблему. Я установил категорию наблюдения по умолчанию для пользователей с уровнем доверия 0. Это вызвало проблему, и регистрация не удалась. Поэтому я удалил категорию наблюдения для этой группы, и теперь регистрация работает.

Я сделал то же самое и столкнулся с той же проблемой. Новые регистрации невозможны.

Но разве мы не используем функцию по назначению? Я хочу, чтобы новые пользователи сразу подписывались на определённую категорию.
Как это реализовать?

Нет, у меня не получилось узнать, как это сделать. Возможно, это можно реализовать через группы? Автоматически добавлять новых пользователей в определённую группу по умолчанию и настроить эту группу на отслеживание определённого тега или категории.

Для меня странно, что это нельзя сделать через уровни доверия.

Дайте знать, если у вас получится это реализовать через группу.

Проблема теперь исправлена следующими коммитами