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Diffstat (limited to 'activerecord/CHANGELOG.md')
| -rw-r--r-- | activerecord/CHANGELOG.md | 408 |
1 files changed, 402 insertions, 6 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index b421fedc96..e2dc8045e2 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,5 +1,405 @@ -* Add new error class `TransactionTimeout` for MySQL adapter which will be raised - when lock wait time expires. +* Support for PostgreSQL foreign tables. + + *fatkodima* + +* Fix relation merger issue with `left_outer_joins`. + + *Mehmet Emin İNAÇ* + +* Don't allow destroyed object mutation after `save` or `save!` is called. + + *Ryuta Kamizono* + +* Take into account association conditions when deleting through records. + + Fixes #18424. + + *Piotr Jakubowski* + +* Fix nested `has_many :through` associations on unpersisted parent instances. + + For example, if you have + + class Post < ActiveRecord::Base + belongs_to :author + has_many :books, through: :author + has_many :subscriptions, through: :books + end + + class Author < ActiveRecord::Base + has_one :post + has_many :books + has_many :subscriptions, through: :books + end + + class Book < ActiveRecord::Base + belongs_to :author + has_many :subscriptions + end + + class Subscription < ActiveRecord::Base + belongs_to :book + end + + Before: + + If `post` is not persisted, then `post.subscriptions` will be empty. + + After: + + If `post` is not persisted, then `post.subscriptions` can be set and used + just like it would if `post` were persisted. + + Fixes #16313. + + *Zoltan Kiss* + +* 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)`. + + Fixes #23979. + + *Brian Christian* + +* Use `count(:all)` in `HasManyAssociation#count_records` to prevent invalid + SQL queries for association counting. + + *Klas Eskilson* + +* Fix to invoke callbacks when using `update_attribute`. + + *Mike Busch* + +* Fix `count(:all)` to correctly work `distinct` with custom SELECT list. + + *Ryuta Kamizono* + +* Using subselect for `delete_all` with `limit` or `offset`. + + *Ryuta Kamizono* + +* Undefine attribute methods on descendants when resetting column + information. + + *Chris Salzberg* + +* Log database query callers + + Add `verbose_query_logs` configuration option to display the caller + of database queries in the log to facilitate N+1 query resolution + and other debugging. + + Enabled in development only for new and upgraded applications. Not + recommended for use in the production environment since it relies + on Ruby's `Kernel#caller_locations` which is fairly slow. + + *Olivier Lacan* + +* Fix conflicts `counter_cache` with `touch: true` by optimistic locking. + + ``` + # create_table :posts do |t| + # t.integer :comments_count, default: 0 + # t.integer :lock_version + # t.timestamps + # end + class Post < ApplicationRecord + end + + # create_table :comments do |t| + # t.belongs_to :post + # end + class Comment < ApplicationRecord + belongs_to :post, touch: true, counter_cache: true + end + ``` + + Before: + ``` + post = Post.create! + # => begin transaction + INSERT INTO "posts" ("created_at", "updated_at", "lock_version") + VALUES ("2017-12-11 21:27:11.387397", "2017-12-11 21:27:11.387397", 0) + commit transaction + + comment = Comment.create!(post: post) + # => begin transaction + INSERT INTO "comments" ("post_id") VALUES (1) + + UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) + 1, + "lock_version" = COALESCE("lock_version", 0) + 1 WHERE "posts"."id" = 1 + + UPDATE "posts" SET "updated_at" = '2017-12-11 21:27:11.398330', + "lock_version" = 1 WHERE "posts"."id" = 1 AND "posts"."lock_version" = 0 + rollback transaction + # => ActiveRecord::StaleObjectError: Attempted to touch a stale object: Post. + + Comment.take.destroy! + # => begin transaction + DELETE FROM "comments" WHERE "comments"."id" = 1 + + UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) - 1, + "lock_version" = COALESCE("lock_version", 0) + 1 WHERE "posts"."id" = 1 + + UPDATE "posts" SET "updated_at" = '2017-12-11 21:42:47.785901', + "lock_version" = 1 WHERE "posts"."id" = 1 AND "posts"."lock_version" = 0 + rollback transaction + # => ActiveRecord::StaleObjectError: Attempted to touch a stale object: Post. + ``` + + After: + ``` + post = Post.create! + # => begin transaction + INSERT INTO "posts" ("created_at", "updated_at", "lock_version") + VALUES ("2017-12-11 21:27:11.387397", "2017-12-11 21:27:11.387397", 0) + commit transaction + + comment = Comment.create!(post: post) + # => begin transaction + INSERT INTO "comments" ("post_id") VALUES (1) + + UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) + 1, + "lock_version" = COALESCE("lock_version", 0) + 1, + "updated_at" = '2017-12-11 21:37:09.802642' WHERE "posts"."id" = 1 + commit transaction + + comment.destroy! + # => begin transaction + DELETE FROM "comments" WHERE "comments"."id" = 1 + + UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) - 1, + "lock_version" = COALESCE("lock_version", 0) + 1, + "updated_at" = '2017-12-11 21:39:02.685520' WHERE "posts"."id" = 1 + commit transaction + ``` + + Fixes #31199. + + *bogdanvlviv* + +* Add support for PostgreSQL operator classes to `add_index`. + + Example: + + add_index :users, :name, using: :gist, opclass: { name: :gist_trgm_ops } + + *Greg Navis* + +* Don't allow scopes to be defined which conflict with instance methods on `Relation`. + + Fixes #31120. + + *kinnrot* + + +## Rails 5.2.0.beta2 (November 28, 2017) ## + +* No changes. + + +## Rails 5.2.0.beta1 (November 27, 2017) ## + +* Add new error class `QueryCanceled` which will be raised + when canceling statement due to user request. + + *Ryuta Kamizono* + +* Add `#up_only` to database migrations for code that is only relevant when + migrating up, e.g. populating a new column. + + *Rich Daley* + +* Require raw SQL fragments to be explicitly marked when used in + relation query methods. + + Before: + ``` + Article.order("LENGTH(title)") + ``` + + After: + ``` + Article.order(Arel.sql("LENGTH(title)")) + ``` + + This prevents SQL injection if applications use the [strongly + discouraged] form `Article.order(params[:my_order])`, under the + mistaken belief that only column names will be accepted. + + Raw SQL strings will now cause a deprecation warning, which will + become an UnknownAttributeReference error in Rails 6.0. Applications + can opt in to the future behavior by setting `allow_unsafe_raw_sql` + to `:disabled`. + + Common and judged-safe string values (such as simple column + references) are unaffected: + ``` + Article.order("title DESC") + ``` + + *Ben Toews* + +* `update_all` will now pass its values to `Type#cast` before passing them to + `Type#serialize`. This means that `update_all(foo: 'true')` will properly + persist a boolean. + + *Sean Griffin* + +* Add new error class `StatementTimeout` which will be raised + when statement timeout exceeded. + + *Ryuta Kamizono* + +* Fix `bin/rails db:migrate` with specified `VERSION`. + `bin/rails db:migrate` with empty VERSION behaves as without `VERSION`. + Check a format of `VERSION`: Allow a migration version number + or name of a migration file. Raise error if format of `VERSION` is invalid. + Raise error if target migration doesn't exist. + + *bogdanvlviv* + +* Fixed a bug where column orders for an index weren't written to + `db/schema.rb` when using the sqlite adapter. + + Fixes #30902. + + *Paul Kuruvilla* + +* Remove deprecated method `#sanitize_conditions`. + + *Rafael Mendonça França* + +* Remove deprecated method `#scope_chain`. + + *Rafael Mendonça França* + +* Remove deprecated configuration `.error_on_ignored_order_or_limit`. + + *Rafael Mendonça França* + +* Remove deprecated arguments from `#verify!`. + + *Rafael Mendonça França* + +* Remove deprecated argument `name` from `#indexes`. + + *Rafael Mendonça França* + +* Remove deprecated method `ActiveRecord::Migrator.schema_migrations_table_name`. + + *Rafael Mendonça França* + +* Remove deprecated method `supports_primary_key?`. + + *Rafael Mendonça França* + +* Remove deprecated method `supports_migrations?`. + + *Rafael Mendonça França* + +* Remove deprecated methods `initialize_schema_migrations_table` and `initialize_internal_metadata_table`. + + *Rafael Mendonça França* + +* Raises when calling `lock!` in a dirty record. + + *Rafael Mendonça França* + +* Remove deprecated support to passing a class to `:class_name` on associations. + + *Rafael Mendonça França* + +* Remove deprecated argument `default` from `index_name_exists?`. + + *Rafael Mendonça França* + +* Remove deprecated support to `quoted_id` when typecasting an Active Record object. + + *Rafael Mendonça França* + +* Fix `bin/rails db:setup` and `bin/rails db:test:prepare` create wrong + ar_internal_metadata's data for a test database. + + Before: + ``` + $ RAILS_ENV=test rails dbconsole + > SELECT * FROM ar_internal_metadata; + key|value|created_at|updated_at + environment|development|2017-09-11 23:14:10.815679|2017-09-11 23:14:10.815679 + ``` + + After: + ``` + $ RAILS_ENV=test rails dbconsole + > SELECT * FROM ar_internal_metadata; + key|value|created_at|updated_at + environment|test|2017-09-11 23:14:10.815679|2017-09-11 23:14:10.815679 + ``` + + Fixes #26731. + + *bogdanvlviv* + +* Fix longer sequence name detection for serial columns. + + Fixes #28332. + + *Ryuta Kamizono* + +* MySQL: Don't lose `auto_increment: true` in the `db/schema.rb`. + + Fixes #30894. + + *Ryuta Kamizono* + +* Fix `COUNT(DISTINCT ...)` for `GROUP BY` with `ORDER BY` and `LIMIT`. + + Fixes #30886. + + *Ryuta Kamizono* + +* PostgreSQL `tsrange` now preserves subsecond precision. + + PostgreSQL 9.1+ introduced range types, and Rails added support for using + this datatype in Active Record. However, the serialization of + `PostgreSQL::OID::Range` was incomplete, because it did not properly + cast the bounds that make up the range. This led to subseconds being + dropped in SQL commands: + + Before: + + connection.type_cast(tsrange.serialize(range_value)) + # => "[2010-01-01 13:30:00 UTC,2011-02-02 19:30:00 UTC)" + + Now: + + connection.type_cast(tsrange.serialize(range_value)) + # => "[2010-01-01 13:30:00.670277,2011-02-02 19:30:00.745125)" + + *Thomas Cannon* + +* Passing a `Set` to `Relation#where` now behaves the same as passing an + array. + + *Sean Griffin* + +* Use given algorithm while removing index from database. + + Fixes #24190. + + *Mehmet Emin İNAÇ* + +* Update payload names for `sql.active_record` instrumentation to be + more descriptive. + + Fixes #30586. + + *Jeremy Green* + +* Add new error class `LockWaitTimeout` which will be raised + when lock wait timeout exceeded. *Gabriel Courtemanche* @@ -209,10 +609,6 @@ *Ryuta Kamizono* -* Quote database name in `db:create` grant statement (when database user does not have access to create the database). - - *Rune Philosof* - * Raise error `UnknownMigrationVersionError` on the movement of migrations when the current migration does not exist. |