rails 8.0.1

on Ruby Gems

Active Support

• Fix a bug in ERB::Util.tokenize that causes incorrect tokenization when ERB tags are preceeded by multibyte characters.

  Martin Emde

• Restore the ability to decorate methods generated by class_attribute.

  It always has been complicated to use Module#prepend or an alias method chain
  to decorate methods defined by class_attribute, but became even harder in 8.0.

  This capability is now supported for both reader and writer methods.

  Jean Boussier

Active Model

• No changes.

Active Record

• Fix removing foreign keys with :restrict action for MySQ

  fatkodima

• Fix a race condition in ActiveRecord::Base#method_missing when lazily defining attributes.

  If multiple thread were concurrently triggering attribute definition on the same model,
  it could result in a NoMethodError being raised.

  Jean Boussier

• Fix MySQL default functions getting dropped when changing a column's nullability.

  Bastian Bartmann

• Fix add_unique_constraint/add_check_constraint/add_foreign_key to be revertible when given invalid options.

  fatkodima

• Fix asynchronous destroying of polymorphic belongs_to associations.

  fatkodima

• Fix insert_all to not update existing records.

  fatkodima

• NOT VALID constraints should not dump in create_table.

  Ryuta Kamizono

• Fix finding by nil composite primary key association.

  fatkodima

• Properly reset composite primary key configuration when setting a primary key.

  fatkodima

• Fix Mysql2Adapter support for prepared statements

  Using prepared statements with MySQL could result in a NoMethodError exception.

  Jean Boussier, Leo Arnold, zzak

• Fix parsing of SQLite foreign key names when they contain non-ASCII characters

  Zacharias Knudsen

• Fix parsing of MySQL 8.0.16+ CHECK constraints when they contain new lines.

  Steve Hill

• Ensure normalized attribute queries use IS NULL consistently for nil and normalized nil values.

  Joshua Young

• Fix sum when performing a grouped calculation.

  User.group(:friendly).sum no longer worked. This is fixed.

  Edouard Chin

• Restore back the ability to pass only database name to DATABASE_URL.

  fatkodima

Action View

• Fix a crash in ERB template error highlighting when the error occurs on a
  line in the compiled template that is past the end of the source template.

  Martin Emde

• Improve reliability of ERB template error highlighting.
  Fix infinite loops and crashes in highlighting and
  improve tolerance for alternate ERB handlers.

  Martin Emde

Action Pack

• Add ActionDispatch::Request::Session#store method to conform Rack spec.

  Yaroslav

Active Job

• Avoid crashing in Active Job logger when logging enqueueing errors

  ActiveJob.perform_all_later could fail with a TypeError when all
  provided jobs failed to be enqueueed.

  Efstathios Stivaros

Action Mailer

• No changes.

Action Cable

• Ensure the Postgresql adapter always use a dedicated connection even during system tests.

  Fix an issue with the Action Cable Postgresql adapter causing deadlock or various weird
  pg client error during system tests.

  Jean Boussier

Active Storage

• No changes.

Action Mailbox

• No changes.

Action Text

• No changes.

Railties

• Skip generation system tests related code for CI when --skip-system-test is given.

  fatkodima

• Don't add bin/thrust if thruster is not in Gemfile.

  Étienne Barrié

• Don't install a package for system test when applications don't use it.

  y-yagi

Guides

• No changes.