Ruby & Rails Ruby on Rails

Rails Basics

• https://guides.rubyonrails.org/getting_started.html#creating-the-blog-application (Novice)
• https://martinfowler.com/eaaCatalog/modelViewController.html (Novice)
• https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller (Novice)
• https://en.wikipedia.org/wiki/Representational_state_transfer (Novice)
• https://guides.rubyonrails.org/routing.html#resources-on-the-web (Novice)

Rails Models

• https://guides.rubyonrails.org/active_record_basics.html (Novice)
• https://ru.wikipedia.org/wiki/ActiveRecord (Novice)
• https://www.martinfowler.com/eaaCatalog/activeRecord.html (Novice)
• https://guides.rubyonrails.org/active_record_basics.html#naming-conventions (Novice)
• https://guides.rubyonrails.org/active_record_basics.html#crud-reading-and-writing-data (Novice)
• https://guides.rubyonrails.org/association_basics.html (Novice)
• https://guides.rubyonrails.org/active_record_querying.html (Novice)
• https://guides.rubyonrails.org/active_record_querying.html (Intermediate)
• https://bigbinary.com/blog/rails-6-1-adds-strict_loading-to-warn-lazy-loading-associations (Intermediate)
• https://guides.rubyonrails.org/active_record_querying.html#scopes (Intermediate)
• https://guides.rubyonrails.org/association_basics.html#polymorphic-associations (Intermediate)
• https://guides.rubyonrails.org/association_basics.html#single-table-inheritance-sti (Intermediate)
• https://blog.capsens.eu/why-you-should-avoid-nested-sti-activerecord-rails-6-b180f1bcc029 (Intermediate)
• https://martinfowler.com/eaaCatalog/singleTableInheritance.html (Intermediate)
• https://martinfowler.com/eaaCatalog/concreteTableInheritance.html (Intermediate)
• https://martinfowler.com/eaaCatalog/classTableInheritance.html (Intermediate)
• https://github.com/rails/rails/pull/39341 (Intermediate)
• https://api.rubyonrails.org/classes/ActiveRecord/Aggregations/ClassMethods.html (Intermediate)
• https://guides.rubyonrails.org/association_basics.html#controlling-association-scope (Advanced)
• https://guides.rubyonrails.org/active_record_querying.html#locking-records-for-update (Advanced)
• https://api.rubyonrails.org/classes/ActiveRecord/Locking/Optimistic.html (Advanced)
• https://api.rubyonrails.org/classes/ActiveRecord/Locking/Pessimistic.html (Advanced)
• https://www.postgresql.org/docs/current/sql-select.html#SQL-FOR-UPDATE-SHARE (Advanced)
• https://www.postgresql.org/docs/current/explicit-locking.html#LOCKING-ROWS (Advanced)
• https://martinfowler.com/eaaCatalog/coarseGrainedLock.html (Advanced)
• https://guides.rubyonrails.org/active_record_querying.html#running-explain (Advanced)
• https://guides.rubyonrails.org/active_model_basics.html (Advanced)
• https://www.digitalocean.com/community/tutorials/understanding-database-sharding (Advanced)
• https://guides.rubyonrails.org/active_record_multiple_databases.html (Advanced)
• https://github.com/rails/rails/pull/40370 (Advanced)
• https://github.com/rails/rails/pull/38531 (Advanced)
• https://guides.rubyonrails.org/active_record_postgresql.html (Advanced)

Rails Migrations

• https://guides.rubyonrails.org/active_record_migrations.html (Novice)
• https://guides.rubyonrails.org/active_record_migrations.html#using-reversible (Intermediate)
• https://guides.rubyonrails.org/active_record_migrations.html#schema-dumping-and-you (Intermediate)
• https://thoughtbot.com/blog/validation-database-constraint-or-both (Intermediate)
• https://guides.rubyonrails.org/active_record_migrations.html#active-record-and-referential-integrity (Intermediate)
• https://guides.rubyonrails.org/active_record_migrations.html#foreign-keys (Intermediate)
• https://guides.rubyonrails.org/active_record_migrations.html#migrations-and-seed-data (Intermediate)

Rails Validations

• https://guides.rubyonrails.org/active_record_validations.html (Novice)
• https://guides.rubyonrails.org/active_record_validations.html#conditional-validation (Novice)
• https://guides.rubyonrails.org/active_record_validations.html#performing-custom-validations (Intermediate)
• https://guides.rubyonrails.org/active_record_validations.html#working-with-validation-errors (Intermediate)

Rails Callbacks

• https://guides.rubyonrails.org/active_record_callbacks.html (Novice)
• https://guides.rubyonrails.org/active_record_callbacks.html#running-callbacks (Intermediate)
• https://guides.rubyonrails.org/active_record_callbacks.html#skipping-callbacks (Intermediate)
• https://guides.rubyonrails.org/active_record_callbacks.html#conditional-callbacks (Intermediate)
• https://guides.rubyonrails.org/active_record_callbacks.html#callback-classes (Intermediate)
• https://guides.rubyonrails.org/active_record_callbacks.html#transaction-callbacks (Advanced)
• https://refactoring.guru/ru/design-patterns/observer (Advanced)
• https://rubydoc.info/github/krisleech/wisper/master/frames (Advanced)
• https://dry-rb.org/gems/dry-events/ (Advanced)

Rails Views

• https://guides.rubyonrails.org/layouts_and_rendering.html (Novice)
• https://guides.rubyonrails.org/form_helpers.html (Novice)
• https://guides.rubyonrails.org/working_with_javascript_in_rails.html#unobtrusive-javascript (Intermediate)
• https://guides.rubyonrails.org/form_helpers.html#uploading-files (Intermediate)
• https://guides.rubyonrails.org/form_helpers.html#customizing-form-builders (Intermediate)
• https://github.com/heartcombo/simple_form (Intermediate)
• https://github.com/formtastic/formtastic (Intermediate)
• https://trailblazer.to/2.1/docs/reform.html (Intermediate)
• https://guides.rubyonrails.org/form_helpers.html#forms-to-external-resources (Advanced)
• https://guides.rubyonrails.org/form_helpers.html#building-complex-forms (Advanced)

Rails Controllers

• https://guides.rubyonrails.org/action_controller_overview.html (Novice)
• https://guides.rubyonrails.org/action_controller_overview.html#session (Novice)
• https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies (Novice)
• https://guides.rubyonrails.org/action_controller_overview.html#rendering-xml-and-json-data (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#filters (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#request-forgery-protection (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#the-request-and-response-objects (Intermediate)
• https://github.com/rack/rack/blob/master/SPEC.rdoc (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#http-authentications (Intermediate)
• https://developer.mozilla.org/en-US/docs/Web/HTTP/Authentication (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#sending-files (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#restful-downloads (Intermediate)
• https://guides.rubyonrails.org/action_controller_overview.html#live-streaming-of-arbitrary-data (Advanced)
• https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events (Advanced)
• https://guides.rubyonrails.org/action_controller_overview.html#log-filtering (Advanced)
• https://guides.rubyonrails.org/action_controller_overview.html#rescue (Advanced)
• https://guides.rubyonrails.org/action_controller_overview.html#force-https-protocol (Advanced)

Rails Routing

• https://guides.rubyonrails.org/routing.html (Novice)
• https://guides.rubyonrails.org/routing.html#non-resourceful-routes (Intermediate)
• https://guides.rubyonrails.org/routing.html#breaking-up-very-large-route-file-into-multiple-small-ones (Advanced)
• https://guides.rubyonrails.org/routing.html#inspecting-and-testing-routes (Advanced)

Rails Action Mailers

• https://guides.rubyonrails.org/action_mailer_basics.html (Novice)
• https://guides.rubyonrails.org/testing.html#testing-your-mailers (Novice)
• https://guides.rubyonrails.org/action_mailer_basics.html#action-mailer-layouts (Intermediate)
• https://guides.rubyonrails.org/action_mailer_basics.html#previewing-emails (Intermediate)
• https://guides.rubyonrails.org/action_mailer_basics.html#sending-multipart-emails (Intermediate)
• https://guides.rubyonrails.org/action_mailer_basics.html#generating-urls-in-action-mailer-views (Intermediate)
• https://guides.rubyonrails.org/action_mailer_basics.html#using-action-mailer-helpers (Intermediate)
• https://guides.rubyonrails.org/action_mailbox_basics.html (Intermediate)
• https://hixonrails.com/ruby-on-rails-tutorials/ruby-on-rails-action-mailer-configuration/ (Advanced)

Rails Active Storage

• https://guides.rubyonrails.org/active_storage_overview.html (Novice)
• https://guides.rubyonrails.org/active_storage_overview.html#displaying-images-videos-and-pdfs (Intermediate)
• https://guides.rubyonrails.org/active_storage_overview.html#direct-uploads (Advanced)
• https://api.rubyonrails.org/v7.0.2.3/classes/ActiveStorage/Service.html (Advanced)
• https://guides.rubyonrails.org/active_storage_overview.html#mirror-service (Advanced)

Testing in Rails

• https://guides.rubyonrails.org/testing.html (Novice)
• https://guides.rubyonrails.org/testing.html#rails-specific-assertions (Novice)
• https://relishapp.com/rspec (Novice)
• https://rubydoc.info/gems/rspec-rails (Novice)
• https://guides.rubyonrails.org/testing.html#the-test-database (Intermediate)
• https://guides.rubyonrails.org/testing.html#system-testing (Intermediate)
• https://guides.rubyonrails.org/testing.html#testing-helpers (Advanced)
• https://github.com/bblimke/webmock (Advanced)
• https://github.com/vcr/vcr (Advanced)
• https://guides.rubyonrails.org/testing.html#testing-time-dependent-code (Advanced)
• https://github.com/travisjeffery/timecop (Advanced)
• https://guides.rubyonrails.org/testing.html#parallel-testing (Advanced)
• https://circleci.com/docs/2.0/parallelism-faster-jobs/ (Advanced)

Rails I18n

• https://guides.rubyonrails.org/i18n.html (Intermediate)
• https://lingohub.com/blog/2013/08/i18n-gem-advanced-features-ruby-rails-internationalization (Advanced)

Caching

• https://guides.rubyonrails.org/caching_with_rails.html (Intermediate)
• https://bigbinary.com/blog/rails-adds-support-for-recyclable-cache-keys (Intermediate)
• https://developer.mozilla.org/en-US/docs/Web/HTTP/Conditional_requests (Intermediate)

ActiveSupport Core Extensions

• https://guides.rubyonrails.org/active_support_core_extensions.html (Intermediate)

Active Job

• https://guides.rubyonrails.org/active_job_basics.html#what-is-active-job-questionmark (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#the-purpose-of-active-job (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#creating-a-job (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#job-execution (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#queues (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#callbacks (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#action-mailer (Intermediate)
• https://guides.rubyonrails.org/active_job_basics.html#supported-types-for-arguments (Advanced)
• https://guides.rubyonrails.org/active_job_basics.html#exceptions (Advanced)
• https://guides.rubyonrails.org/active_job_basics.html#job-testing (Advanced)

Action Cable

• https://guides.rubyonrails.org/action_cable_overview.html (Intermediate)
• https://en.wikipedia.org/wiki/Publish–subscribe_pattern (Intermediate)
• https://medium.com/easyread/difference-between-pub-sub-pattern-and-observable-pattern-d5ae3d81e6ce (Intermediate)
• https://guides.rubyonrails.org/action_cable_overview.html#configuration (Advanced)
• https://guides.rubyonrails.org/action_cable_overview.html#subscription-adapter (Advanced)
• https://guides.rubyonrails.org/action_cable_overview.html#running-standalone-cable-servers (Advanced)
• https://anycable.io (Advanced)
• https://guides.rubyonrails.org/testing.html#testing-action-cable (Advanced)

Action Text

• https://guides.rubyonrails.org/action_text_overview.html (Intermediate)
• https://trix-editor.org (Intermediate)

Webpacker

• https://guides.rubyonrails.org/webpacker.html (Intermediate)
• https://webpack.js.org/concepts/ (Intermediate)
• https://habr.com/ru/post/514838/ (Intermediate)

Turbolinks

• https://guides.rubyonrails.org/working_with_javascript_in_rails.html#turbolinks (Intermediate)
• https://turbo.hotwire.dev (Intermediate)

API development

• https://guides.rubyonrails.org/api_app.html (Intermediate)
• https://github.com/rails-api/active_model_serializers (Intermediate)
• https://github.com/jsonapi-serializer/jsonapi-serializer (Intermediate)

Rails Security

• https://guides.rubyonrails.org/security.html (Intermediate)
• https://blog.saeloun.com/2019/10/31/rails-6-adds-guard-against-dns-rebinding-attacks.html (Intermediate)
• https://rorsecurity.info/portfolio/rackattack-rate-limits-against-ddos-and-abusive-users (Advanced)
• https://rorsecurity.info/portfolio/content-security-policy-csp-strategy (Advanced)

Rails Engines

• https://guides.rubyonrails.org/engines.html (Advanced)

Rails configuration

• https://guides.rubyonrails.org/configuring.html (Advanced)

Rails Internals

• https://guides.rubyonrails.org/autoloading_and_reloading_constants.html (Advanced)
• https://guides.rubyonrails.org/threading_and_code_execution.html (Advanced)
• https://guides.rubyonrails.org/active_support_instrumentation.html (Advanced)