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Fix "Ruby on Rails 5.2 Release Notes" [ci skip]

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- Remove
  ```
  *   Namespace error pages' CSS selectors to stop the styles from bleeding
      into other pages when using Turbolinks.
      ([Pull Request](https://github.com/rails/rails/pull/28814))
  ```
  since it was backported to
  `5-1-stable` by 50d5baf7ed15908ce66c39cc62ce80ad99e313c3
  and
  `5-0-stable` by d1c4a39ed796a31efc51901e7e818609fb3cb7ec.

- Remove
  ```
  *   Allow irb options to be passed from `rails console` command.
      ([Pull Request](https://github.com/rails/rails/pull/29010))
  ```
  since it was backported to
  `5-1-stable` by e91b48348c9a33447bf1bff6e043c043cf36439f.

- Remove
  ```
  *   Load environment file in `dbconsole` command.
      ([Pull Request](https://github.com/rails/rails/pull/29725))
  ```
  since it was backported to
  `5-1-stable` by 7f9342877a80bc9a2a283462babf7b829902dc78.

- Remove
  ```
  *   Gemfile for new apps: upgrade redis-rb from ~> 3.0 to 4.0.
      ([Pull Request](https://github.com/rails/rails/pull/30748))
  ```
  since it was backported to
  `5-1-stable` by 37895311514a35333e5597018852eb0fe2c9eb28.

- Remove
  ```
  *   Fix minitest rails plugin.
      The custom reporters are added only if needed.
      This will fix conflicts with others plugins.
      ([Commit](ac99916fcf))
  ```
  since it was backported to
  `5-1-stable` by caa76956d396a6a9feae7aa17adce784127e92cc.

- Remove
  ```
  *   Add support for compatibility with redis-rb gem for 4.0 version.
      ([Pull Request](https://github.com/rails/rails/pull/30748))
  ```
  since it was backported to
  `5-1-stable` by 37895311514a35333e5597018852eb0fe2c9eb28.

- Remove
  ```
  *   Add `action_controller_api` and `action_controller_base` load hooks to be
      called in `ActiveSupport.on_load`.
      ([Pull Request](https://github.com/rails/rails/pull/28402))
  ```
  since it was backported to
  `5-1-stable` by b9a5fd706a821401cbe3ce11d7a18daa8267588f.

- Remove
  ```
  *   `driven_by` now registers poltergeist and capybara-webkit.
      ([Pull Request](https://github.com/rails/rails/pull/29315))
  ```
  since it was backported to
  `5-1-stable` by c5dd45119a28fb1c41de6d27d63443480c86894e.

- Remove
  ```
  *   Fallback `ActionController::Parameters#to_s` to `Hash#to_s`.
      ([Pull Request](https://github.com/rails/rails/pull/29630))
  ```
  since it was backported to
  `5-1-stable` by c1014e435d26db867b2c15b74c9ef47ccff38edb
  and
  `5-0-stable` by 0e71fc3040edc3c28d12c07300f0162559bbe4e5.

- Remove
  ```
  *   Make `take_failed_screenshot` work within engine.
      ([Pull Request](https://github.com/rails/rails/pull/30421))
  ```
  since it was backported to
  `5-1-stable` by 595a231029ce402445da33eec62775cbe0da97de.

- Remove
  ```
  *   Fix optimized url helpers when using relative url root.
      ([Pull Request](https://github.com/rails/rails/pull/31261))
  ```
  since it was backported to
  `5-1-stable` by e9b77953a277a707ce1fb60e1f9963a833df9312.

- Remove
  ```
  *   Update `distance_of_time_in_words` helper to display better error messages
      for bad input.
      ([Pull Request](https://github.com/rails/rails/pull/20701))
  ```
  since it was backported to
  `5-1-stable` by 2c97fbf6503c9199f3fe5ed06222e7226dc6fcd9.

- Remove
  ```
  *   Generate field ids in `collection_check_boxes` and
      `collection_radio_buttons`.
      ([Pull Request](https://github.com/rails/rails/pull/29412))
  ```
  since it was backported to
  `5-1-stable` by 2d8c10a7b1066d6a577096b4a86e310f1b0d2c22.

- Remove
  ```
  *   Fix issues with scopes and engine on `current_page?` method.
      ([Pull Request](https://github.com/rails/rails/pull/29503))
  ```
  since it was backported to
  `5-1-stable` by 2135daf0d552bbb2eca4208f8c33fb015cf052ab.

- Remove
  ```
  *   Bring back proc with arity of 1 in `ActionMailer::Base.default` proc
      since it was supported in Rails 5.0 but not deprecated.
      ([Pull Request](https://github.com/rails/rails/pull/30391))
  ```
  since it was backported to
  `5-1-stable` by b2bedb149274c8490c782c62dd8ab0bbae6a9730.

- Remove
  ```
  *   Add type caster to `RuntimeReflection#alias_name`.
      ([Pull Request](https://github.com/rails/rails/pull/28961))
  ```
  since it was backported to
  `5-1-stable` by f644e7a6fddf1b239dc1af0b0c6be8af9f776918.

- Remove
  ```
  *   Loading model schema from database is now thread-safe.
      ([Pull Request](https://github.com/rails/rails/pull/29216))
  ```
  since it was backported to
  `5-1-stable` by 02926cfff6a403d28f83903b08ae7375fad8e836.
  and
  `5-0-stable` by 84bcfe5a6a65d3c2998d14b85b9f02560d3f9e98

- Remove
  ```
  *   Fix destroying existing object does not work well when optimistic locking
      enabled and `locking_column` is null in the database.
      ([Pull Request](https://github.com/rails/rails/pull/28926))
  ```
  since it was backported to
  `5-1-stable` by e498052c5210e886f46c61deadd161f8ea41666f.

- Remove
  ```
  *   `ActiveRecord::Persistence#touch` does not work well
      when optimistic locking enabled and `locking_column`,
      without default value, is null in the database.
      ([Pull Request](https://github.com/rails/rails/pull/28914))
  ```
  since it was backported to
  `5-1-stable` by 1e2f63db78b9089fb7011eb954c88136f324e7c0.

- Remove
  ```
  *   Previously, when building records using a `has_many :through` association,
      if the child records were deleted before the parent was saved,
      they would still be persisted. Now, if child records are deleted
      before the parent is saved on a `has_many :through` association,
      the child records will not be persisted.
      ([Pull Request](https://github.com/rails/rails/pull/29593))
  ```
  since it was backported to
  `5-1-stable` by a22c39e9cc08c052bb5c828b45533e5a01c896f1.

- Remove
  ```
  *   Query cache was unavailable when entering the `ActiveRecord::Base.cache`
      block without being connected.
      ([Pull Request](https://github.com/rails/rails/pull/29609))
  ```
  since it was backported to
  `5-1-stable` by fd6c8cdfe69ed3a0763f0ff1dc41d2d2ee2e8752
  and
  `5-0-stable` by 9f2532bb16b49751fbdda51846b156c3eca09054.

- Remove
  ```
  *   `Relation#joins` is no longer affected by the target model's
      `current_scope`, with the exception of `unscoped`.
      ([Commit](5c71000d08))
  ```
  since it was backported to
  `5-1-stable` by 3630d6354cab31bb233a1f1d7b1a4d2c24aef54d.

- Remove
  ```
  *   Fix `unscoped(where: [columns])` removing the wrong bind values.
      ([Pull Request](https://github.com/rails/rails/pull/29780))
  ```
  since it was backported to
  `5-1-stable` by d378fcb254462f9da8d921f0fa2e9b9868a7d34e.

- Remove
  ```
  *   When a `has_one` association is destroyed by `dependent: destroy`,
      `destroyed_by_association` will now be set to the reflection, matching the
      behaviour of `has_many` associations.
      ([Pull Request](https://github.com/rails/rails/pull/29855))
  ```
  since it was backported to
  `5-1-stable` by 8254a8be81c07dbdbc2a281bab72f23f93f6b12f.

- Remove
  ```
  *   Fix `COUNT(DISTINCT ...)` with `ORDER BY` and `LIMIT`
      to keep the existing select list.
      ([Pull Request](https://github.com/rails/rails/pull/29848))
  ```
  since it was backported to
  `5-1-stable` by 0e8d4edd56f44b27f33bd214aa03af60cc5d39ae.

- Remove
  ```
  *   Ensure `sum` honors `distinct` on `has_many :through` associations.
      ([Commit](566f1fd068))
  ```
  since it was backported to
  `5-1-stable` by c0a1dc256144b91aee5241fad2121e85e6d8093f.

- Remove
  ```
  *   Fix `COUNT(DISTINCT ...)` for `GROUP BY` with `ORDER BY` and `LIMIT`.
      ([Commit](5668dc6b18))
  ```
  since it was backported to
  `5-1-stable` by 87ca68e76eec68ec61fc0d3d3bf315b4bfe45c42.

- Remove
  ```
  *   MySQL: Don't lose `auto_increment: true` in the `db/schema.rb`.
      ([Commit](9493d45535))
  ```
  since it was backported to
  `5-1-stable` by 8b6e694e5febdcb39f72d98ff9d5e7124cc0ca32.

- Remove
  ```
  *   Fix longer sequence name detection for serial columns.
      ([Pull Request](https://github.com/rails/rails/pull/28339))
  ```
  since it was backported to
  `5-1-stable` by af9c1707ad49eb421cf76c1367da3efbf3c39aea
  and
  `5-0-stable` by 7025b1d8ebf694c288c71878b5229394ba3c0580.

- Remove
  ```
  *   Fix `bin/rails db:setup` and `bin/rails db:test:prepare` create wrong
      ar_internal_metadata's data for a test database.
      ([Pull Request](https://github.com/rails/rails/pull/30579))
  ```
  since it was backported to
  `5-1-stable` by bb67b5f278c2dbca65b9dd03038788a4dbb4a21f
  and
  `5-0-stable` by 60437e6d3c99cbbb95a01f31d44be19f7b63e3eb.

- Remove
  ```
  *   Fix conflicts `counter_cache` with `touch: true` by optimistic locking.
      ([Pull Request](https://github.com/rails/rails/pull/31405))
  ```
  since it was backported to
  `5-1-stable` by 5236ddaf35492513895d4a706435520e74ab723b.

- Remove
  ```
  *   Fix `count(:all)` to correctly work `distinct` with custom SELECT list.
      ([Commit](c6cd9a59f2))
  ```
  since it was backported to
  `5-1-stable` by 6beb4de7dd5205d9b08ce4eedbe383cb0b18540d.

- Remove
  ```
  *   Fix to invoke callbacks when using `update_attribute`.
      ([Commit](732aa34b6e))
  ```
  since it was backported to
  `5-1-stable` by 6346683bc58b79b2745e9305e65a6f1f1a63c288.

- Remove
  ```
  *   Use `count(:all)` in `HasManyAssociation#count_records` to prevent invalid
      SQL queries for association counting.
      ([Pull Request](https://github.com/rails/rails/pull/27561))
  ```
  since it was backported to
  `5-1-stable` by eef3c89e3b38c99c79decb1ec5d6854f4ab9ea18.

- Remove
  ```
  *   Fix `count(:all)` with eager loading and having an order other than
      the driving table.
      ([Commit](ebc09ed9ad))
  ```
  since it was backported to
  `5-1-stable` by 6df9b69b2363734175d8869393e83e6ce8b4d7b6.

- Remove
  ```
  *   PostgreSQL: Allow pg-1.0 gem to be used with Active Record.
      ([Pull Request](https://github.com/rails/rails/pull/31671))
  ```
  since it was backported to
  `5-1-stable` by a9c06f61d52c7cf03dc413dd50e9a9c5ab580703.

- Remove
  ```
  *   Fix that after commit callbacks on update does not triggered
      when optimistic locking is enabled.
      ([Commit](7f9bd034c4))
  ```
  since it was backported to
  `5-1-stable` by aaee10e6e4fdfbc8bb7dc6169ed9deea3638c5a8.

- Remove
  ```
  *   Fix regression in numericality validator when comparing Decimal and Float
      input values with more scale than the schema.
      ([Pull Request](https://github.com/rails/rails/pull/28584))
  ```
  since it was backported to
  `5-1-stable` by 5b1c3e5a8b02d0078bd2527ca0969b0d89fec433.
  Note that there was incorrect link to PR,
  original PR is https://github.com/rails/rails/pull/29249.

- Remove
  ```
  *   Fix to working before/after validation callbacks on multiple contexts.
      ([Pull Request](https://github.com/rails/rails/pull/31483))
  ```
  since it was backported to
  `5-1-stable` by 0f7046a7f820186fd6fbe19a6142002cb8537fe6.

- Remove
  ```
  *   Fix implicit coercion calculations with scalars and durations.
      ([Pull Request](https://github.com/rails/rails/pull/29163),
      [Pull Request](https://github.com/rails/rails/pull/29971))
  ```
  since it was backported to
  `5-1-stable` by 51ea27c04c60373d97e212389d587821deae6fe0,
                  4d82e2aad98ddf7c1a54e588288dcf1f68ad7af4.

- Remove
  ```
  *   Fix modulo operations involving durations.
      ([Commit](a54e13bd2e))
  ```
  since it was backported to
  `5-1-stable` by 233fa7eab36e7d6fb515b2e55c699bff9858ea5f.

- Remove
  ```
  *   Return all mappings for a timezone identifier in `country_zones`.
      ([Commit](cdce6a709e))
  ```
  since it was backported to
  `5-1-stable` by 0222ebbe0695fd1fbaf98e64333d9d7b285a54ed.

- Remove
  ```
  *   Add support for compatibility with redis-rb gem for 4.0 version.
      ([Pull Request](https://github.com/rails/rails/pull/30748))
  ```
  since it was backported to
  `5-1-stable` by 37895311514a35333e5597018852eb0fe2c9eb28.
  Related to #32252.

Related to #32222, https://github.com/rails/rails/pull/32222#discussion_r174256536.
Follow up a489cc81b6aa1187b169ddccc92f4c077fe0408f.
This commit is contained in:
bogdanvlviv 2018-03-14 16:33:33 +02:00
parent 63ec63ca8c
commit b5b179fb57
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154
guides/source/5_2_release_notes.md
View File

@ -172,26 +172,16 @@ Please refer to the [Changelog][railties] for detailed changes.
### Notable changes
* Namespace error pages' CSS selectors to stop the styles from bleeding
into other pages when using Turbolinks.
([Pull Request](https://github.com/rails/rails/pull/28814))
* Added a shared section to `config/database.yml` that will be loaded for
all environments.
([Pull Request](https://github.com/rails/rails/pull/28896))
* Allow irb options to be passed from `rails console` command.
([Pull Request](https://github.com/rails/rails/pull/29010))
* Add `railtie.rb` to the plugin generator.
([Pull Request](https://github.com/rails/rails/pull/29576))
* Clear screenshot files in `tmp:clear` task.
([Pull Request](https://github.com/rails/rails/pull/29534))
* Load environment file in `dbconsole` command.
([Pull Request](https://github.com/rails/rails/pull/29725))
* Skip unused components when running `bin/rails app:update`.
If the initial app generation skipped Action Cable, Active Record etc.,
the update task honors those skips too.
@ -246,19 +236,11 @@ Please refer to the [Changelog][railties] for detailed changes.
* Add `mini_magick` to default `Gemfile` as comment.
([Pull Request](https://github.com/rails/rails/pull/30633))
* Gemfile for new apps: upgrade redis-rb from ~> 3.0 to 4.0.
([Pull Request](https://github.com/rails/rails/pull/30748))
* `rails new` and `rails plugin new` get `Active Storage` by default.
Add ability to skip `Active Storage` with `--skip-active-storage`
and do so automatically when `--skip-active-record` is used.
([Pull Request](https://github.com/rails/rails/pull/30101))
* Fix minitest rails plugin.
The custom reporters are added only if needed.
This will fix conflicts with others plugins.
([Commit](https://github.com/rails/rails/commit/ac99916fcf7bf27bb1519d4f7387c6b4c5f0463d))
Action Cable
------------
@ -277,9 +259,6 @@ Please refer to the [Changelog][action-cable] for detailed changes.
* Hash long stream identifiers when using PostgreSQL adapter.
([Pull Request](https://github.com/rails/rails/pull/29297))
* Add support for compatibility with redis-rb gem for 4.0 version.
([Pull Request](https://github.com/rails/rails/pull/30748))
Action Pack
-----------
@ -298,10 +277,6 @@ Please refer to the [Changelog][action-pack] for detailed changes.
### Notable changes
* Add `action_controller_api` and `action_controller_base` load hooks to be
called in `ActiveSupport.on_load`.
([Pull Request](https://github.com/rails/rails/pull/28402))
* Add support for recyclable cache keys with fragment caching.
([Pull Request](https://github.com/rails/rails/pull/29092))
@ -312,18 +287,9 @@ Please refer to the [Changelog][action-pack] for detailed changes.
* AEAD encrypted cookies and sessions with GCM.
([Pull Request](https://github.com/rails/rails/pull/28132))
* `driven_by` now registers poltergeist and capybara-webkit.
([Pull Request](https://github.com/rails/rails/pull/29315))
* Fallback `ActionController::Parameters#to_s` to `Hash#to_s`.
([Pull Request](https://github.com/rails/rails/pull/29630))
* Protect from forgery by default.
([Pull Request](https://github.com/rails/rails/pull/29742))
* Make `take_failed_screenshot` work within engine.
([Pull Request](https://github.com/rails/rails/pull/30421))
* Enforce signed/encrypted cookie expiry server side.
([Pull Request](https://github.com/rails/rails/pull/30121))
@ -353,9 +319,6 @@ Please refer to the [Changelog][action-pack] for detailed changes.
[Commit](https://github.com/rails/rails/commit/619b1b6353a65e1635d10b8f8c6630723a5a6f1a),
[Commit](https://github.com/rails/rails/commit/4ec8bf68ff92f35e79232fbd605012ce1f4e1e6e))
* Fix optimized url helpers when using relative url root.
([Pull Request](https://github.com/rails/rails/pull/31261))
* Register most popular audio/video/font mime types supported by modern
browsers.
([Pull Request](https://github.com/rails/rails/pull/31251))
@ -409,21 +372,10 @@ Please refer to the [Changelog][action-view] for detailed changes.
### Notable changes
* Update `distance_of_time_in_words` helper to display better error messages
for bad input.
([Pull Request](https://github.com/rails/rails/pull/20701))
* Add `:json` type to `auto_discovery_link_tag` to support
[JSON Feeds](https://jsonfeed.org/version/1).
([Pull Request](https://github.com/rails/rails/pull/29158))
* Generate field ids in `collection_check_boxes` and
`collection_radio_buttons`.
([Pull Request](https://github.com/rails/rails/pull/29412))
* Fix issues with scopes and engine on `current_page?` method.
([Pull Request](https://github.com/rails/rails/pull/29503))
* Add `srcset` option to `image_tag` helper.
([Pull Request](https://github.com/rails/rails/pull/29349))
@ -453,10 +405,6 @@ Please refer to the [Changelog][action-mailer] for detailed changes.
* Add `assert_enqueued_email_with` test helper.
([Pull Request](https://github.com/rails/rails/pull/30695))
* Bring back proc with arity of 1 in `ActionMailer::Base.default` proc
since it was supported in Rails 5.0 but not deprecated.
([Pull Request](https://github.com/rails/rails/pull/30391))
Active Record
-------------
@ -546,9 +494,6 @@ Please refer to the [Changelog][active-record] for detailed changes.
when the current migration does not exist.
([Commit](https://github.com/rails/rails/commit/bb9d6eb094f29bb94ef1f26aa44f145f17b973fe))
* Add type caster to `RuntimeReflection#alias_name`.
([Pull Request](https://github.com/rails/rails/pull/28961))
* Respect `SchemaDumper.ignore_tables` in rake tasks for
databases structure dump.
([Pull Request](https://github.com/rails/rails/pull/29077))
@ -559,39 +504,16 @@ Please refer to the [Changelog][active-record] for detailed changes.
does not include a timestamp any more.
([Pull Request](https://github.com/rails/rails/pull/29092))
* Loading model schema from database is now thread-safe.
([Pull Request](https://github.com/rails/rails/pull/29216))
* Prevent creation of bind param if casted value is nil.
([Pull Request](https://github.com/rails/rails/pull/29282))
* Use bulk INSERT to insert fixtures for better performance.
([Pull Request](https://github.com/rails/rails/pull/29504))
* Fix destroying existing object does not work well when optimistic locking
enabled and `locking_column` is null in the database.
([Pull Request](https://github.com/rails/rails/pull/28926))
* `ActiveRecord::Persistence#touch` does not work well
when optimistic locking enabled and `locking_column`,
without default value, is null in the database.
([Pull Request](https://github.com/rails/rails/pull/28914))
* Merging two relations representing nested joins no longer transforms
the joins of the merged relation into LEFT OUTER JOIN.
([Pull Request](https://github.com/rails/rails/pull/27063))
* Previously, when building records using a `has_many :through` association,
if the child records were deleted before the parent was saved,
they would still be persisted. Now, if child records are deleted
before the parent is saved on a `has_many :through` association,
the child records will not be persisted.
([Pull Request](https://github.com/rails/rails/pull/29593))
* Query cache was unavailable when entering the `ActiveRecord::Base.cache`
block without being connected.
([Pull Request](https://github.com/rails/rails/pull/29609))
* Fix transactions to apply state to child transactions.
Previously, if you had a nested transaction and the outer transaction was
rolledback, the record from the inner transaction would still be marked
@ -617,26 +539,10 @@ Please refer to the [Changelog][active-record] for detailed changes.
recognize 't' and 'f' as was previously serialized.
([Pull Request](https://github.com/rails/rails/pull/29699))
* `Relation#joins` is no longer affected by the target model's
`current_scope`, with the exception of `unscoped`.
([Commit](https://github.com/rails/rails/commit/5c71000d086cc42516934415b79380c2224e1614))
* Values constructed using multi-parameter assignment will now use the
post-type-cast value for rendering in single-field form inputs.
([Commit](https://github.com/rails/rails/commit/1519e976b224871c7f7dd476351930d5d0d7faf6))
* Fix `unscoped(where: [columns])` removing the wrong bind values.
([Pull Request](https://github.com/rails/rails/pull/29780))
* When a `has_one` association is destroyed by `dependent: destroy`,
`destroyed_by_association` will now be set to the reflection, matching the
behaviour of `has_many` associations.
([Pull Request](https://github.com/rails/rails/pull/29855))
* Fix `COUNT(DISTINCT ...)` with `ORDER BY` and `LIMIT`
to keep the existing select list.
([Pull Request](https://github.com/rails/rails/pull/29848))
* `ApplicationRecord` is no longer generated when generating models. If you
need to generate it, it can be created with `rails g application_record`.
([Pull Request](https://github.com/rails/rails/pull/29916))
@ -652,9 +558,6 @@ Please refer to the [Changelog][active-record] for detailed changes.
* Add `binary` fixture helper method.
([Pull Request](https://github.com/rails/rails/pull/30073))
* Ensure `sum` honors `distinct` on `has_many :through` associations.
([Commit](https://github.com/rails/rails/commit/566f1fd068711dfe557bef63406f8dd6d41d473d))
* Automatically guess the inverse associations for STI.
([Pull Request](https://github.com/rails/rails/pull/23425))
@ -676,19 +579,6 @@ Please refer to the [Changelog][active-record] for detailed changes.
* PostgreSQL `tsrange` now preserves subsecond precision.
([Pull Request](https://github.com/rails/rails/pull/30725))
* Fix `COUNT(DISTINCT ...)` for `GROUP BY` with `ORDER BY` and `LIMIT`.
([Commit](https://github.com/rails/rails/commit/5668dc6b1863ef43be8f8ef0fb1d5db913085fb3))
* MySQL: Don't lose `auto_increment: true` in the `db/schema.rb`.
([Commit](https://github.com/rails/rails/commit/9493d4553569118b2a85da84fd3a8ba2b5b2de76))
* Fix longer sequence name detection for serial columns.
([Pull Request](https://github.com/rails/rails/pull/28339))
* Fix `bin/rails db:setup` and `bin/rails db:test:prepare` create wrong
ar_internal_metadata's data for a test database.
([Pull Request](https://github.com/rails/rails/pull/30579))
* Raises when calling `lock!` in a dirty record.
([Commit](https://github.com/rails/rails/commit/63cf15877bae859ff7b4ebaf05186f3ca79c1863))
@ -732,9 +622,6 @@ Please refer to the [Changelog][active-record] for detailed changes.
* Add support for PostgreSQL operator classes to `add_index`.
([Pull Request](https://github.com/rails/rails/pull/19090))
* Fix conflicts `counter_cache` with `touch: true` by optimistic locking.
([Pull Request](https://github.com/rails/rails/pull/31405))
* Log database query callers.
([Pull Request](https://github.com/rails/rails/pull/26815),
[Pull Request](https://github.com/rails/rails/pull/31519),
@ -746,16 +633,6 @@ Please refer to the [Changelog][active-record] for detailed changes.
* Using subselect for `delete_all` with `limit` or `offset`.
([Commit](https://github.com/rails/rails/commit/9e7260da1bdc0770cf4ac547120c85ab93ff3d48))
* Fix `count(:all)` to correctly work `distinct` with custom SELECT list.
([Commit](https://github.com/rails/rails/commit/c6cd9a59f200863ccfe8ad1d9c5a8876c39b9c5c))
* Fix to invoke callbacks when using `update_attribute`.
([Commit](https://github.com/rails/rails/commit/732aa34b6e6459ad66a3d3ad107cfff75cc45160))
* Use `count(:all)` in `HasManyAssociation#count_records` to prevent invalid
SQL queries for association counting.
([Pull Request](https://github.com/rails/rails/pull/27561))
* Fixed inconsistency with `first(n)` when used with `limit()`.
The `first(n)` finder now respects the `limit()`, making it consistent
with `relation.to_a.first(n)`, and also with the behavior of `last(n)`.
@ -779,17 +656,10 @@ Please refer to the [Changelog][active-record] for detailed changes.
* Clear the transaction state when an Active Record object is duped.
([Pull Request](https://github.com/rails/rails/pull/31751))
* Fix `count(:all)` with eager loading and having an order other than
the driving table.
([Commit](https://github.com/rails/rails/commit/ebc09ed9ad9a04338138739226a1a92c7a2707ee))
* Fix not expanded problem when passing an Array object as argument
to the where method using `composed_of` column.
([Pull Request](https://github.com/rails/rails/pull/31724))
* PostgreSQL: Allow pg-1.0 gem to be used with Active Record.
([Pull Request](https://github.com/rails/rails/pull/31671))
* Make `reflection.klass` raise if `polymorphic?` not to be misused.
([Commit](https://github.com/rails/rails/commit/63fc1100ce054e3e11c04a547cdb9387cd79571a))
@ -798,10 +668,6 @@ Please refer to the [Changelog][active-record] for detailed changes.
even if `ORDER BY` columns include other table's primary key.
([Commit](https://github.com/rails/rails/commit/851618c15750979a75635530200665b543561a44))
* Fix that after commit callbacks on update does not triggered
when optimistic locking is enabled.
([Commit](https://github.com/rails/rails/commit/7f9bd034c485c2425ae0164ff5d6374834e3aa1d))
* Fix `dependent: :destroy` issue for has_one/belongs_to relationship where
the parent class was getting deleted when the child was not.
([Commit](https://github.com/rails/rails/commit/b0fc04aa3af338d5a90608bf37248668d59fc881))
@ -818,10 +684,6 @@ Please refer to the [Changelog][active-model] for detailed changes.
Change `#values` to only return the not empty values.
([Pull Request](https://github.com/rails/rails/pull/28584))
* Fix regression in numericality validator when comparing Decimal and Float
input values with more scale than the schema.
([Pull Request](https://github.com/rails/rails/pull/28584))
* Add method `#merge!` for `ActiveModel::Errors`.
([Pull Request](https://github.com/rails/rails/pull/29714))
@ -832,9 +694,6 @@ Please refer to the [Changelog][active-model] for detailed changes.
is `false`.
([Pull Request](https://github.com/rails/rails/pull/31058))
* Fix to working before/after validation callbacks on multiple contexts.
([Pull Request](https://github.com/rails/rails/pull/31483))
* Models using the attributes API with a proc default can now be marshalled.
([Commit](https://github.com/rails/rails/commit/0af36c62a5710e023402e37b019ad9982e69de4b))
@ -883,10 +742,6 @@ Please refer to the [Changelog][active-support] for detailed changes.
in Active Record and its use in Action Pack's fragment caching.
([Pull Request](https://github.com/rails/rails/pull/29092))
* Fix implicit coercion calculations with scalars and durations.
([Pull Request](https://github.com/rails/rails/pull/29163),
[Pull Request](https://github.com/rails/rails/pull/29971))
* Add `ActiveSupport::CurrentAttributes` to provide a thread-isolated
attributes singleton. Primary use case is keeping all the per-request
attributes easily available to the whole system.
@ -923,9 +778,6 @@ Please refer to the [Changelog][active-support] for detailed changes.
`ActiveSupport::MessageEncryptor`.
([Pull Request](https://github.com/rails/rails/pull/29892))
* Fix modulo operations involving durations.
([Commit](https://github.com/rails/rails/commit/a54e13bd2e8fb4d6aa0aebe59271699a2d62567b))
* Update `String#camelize` to provide feedback when wrong option is passed.
([Pull Request](https://github.com/rails/rails/pull/30039))
@ -1016,9 +868,6 @@ Please refer to the [Changelog][active-support] for detailed changes.
This allows to specify multiple numeric differences in the same assertion.
([Pull Request](https://github.com/rails/rails/pull/31600))
* Return all mappings for a timezone identifier in `country_zones`.
([Commit](https://github.com/rails/rails/commit/cdce6a709e1cbc98fff009effc3b1b3ce4c7e8db))
* Caching: MemCache and Redis `read_multi` and `fetch_multi` speedup.
Read from the local in-memory cache before consulting the backend.
([Commit](https://github.com/rails/rails/commit/a2b97e4ffef971607a1be8fc7909f099b6840f36))
@ -1030,9 +879,6 @@ Please refer to the [Changelog][active-job] for detailed changes.
### Notable changes
* Add support for compatibility with redis-rb gem for 4.0 version.
([Pull Request](https://github.com/rails/rails/pull/30748))
* Allow block to be passed to `ActiveJob::Base.discard_on` to allow custom
handling of discard jobs.
([Pull Request](https://github.com/rails/rails/pull/30622))