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Diffstat (limited to 'activerecord/CHANGELOG.md')
| -rw-r--r-- | activerecord/CHANGELOG.md | 369 |
1 files changed, 25 insertions, 344 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 2a237f86cf..727ddd6bb7 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,371 +1,52 @@ -* Add an `:if_not_exists` option to `create_table`. +* Make currency symbols optional for money column type in PostgreSQL - Example: + *Joel Schneider* - create_table :posts, if_not_exists: true do |t| - t.string :title - end +* Add support for beginless ranges, introduced in Ruby 2.7. - That would execute: + *Josh Goodall* - CREATE TABLE IF NOT EXISTS posts ( - ... - ) +* Add database_exists? method to connection adapters to check if a database exists. - If the table already exists, `if_not_exists: false` (the default) raises an - exception whereas `if_not_exists: true` does nothing. + *Guilherme Mansur* - *fatkodima*, *Stefan Kanev* +* Loading the schema for a model that has no `table_name` raises a `TableNotSpecified` error. -* Defining an Enum as a Hash with blank key, or as an Array with a blank value, now raises an `ArgumentError`. + *Guilherme Mansur*, *Eugene Kenny* - *Christophe Maximin* +* PostgreSQL: Fix GROUP BY with ORDER BY virtual count attribute. -* Adds support for multiple databases to `rails db:schema:cache:dump` and `rails db:schema:cache:clear`. - - *Gannon McGibbon* - -* `update_columns` now correctly raises `ActiveModel::MissingAttributeError` - if the attribute does not exist. - - *Sean Griffin* - -* Add support for hash and url configs in database hash of `ActiveRecord::Base.connected_to`. - - ```` - User.connected_to(database: { writing: "postgres://foo" }) do - User.create!(name: "Gannon") - end - - config = { "adapter" => "sqlite3", "database" => "db/readonly.sqlite3" } - User.connected_to(database: { reading: config }) do - User.count - end - ```` - - *Gannon McGibbon* - -* Support default expression for MySQL. - - MySQL 8.0.13 and higher supports default value to be a function or expression. - - https://dev.mysql.com/doc/refman/8.0/en/create-table.html - - *Ryuta Kamizono* - -* Support expression indexes for MySQL. - - MySQL 8.0.13 and higher supports functional key parts that index - expression values rather than column or column prefix values. - - https://dev.mysql.com/doc/refman/8.0/en/create-index.html - - *Ryuta Kamizono* - -* Fix collection cache key with limit and custom select to avoid ambiguous timestamp column error. - - Fixes #33056. - - *Federico Martinez* - -* Add basic API for connection switching to support multiple databases. - - 1) Adds a `connects_to` method for models to connect to multiple databases. Example: - - ``` - class AnimalsModel < ApplicationRecord - self.abstract_class = true - - connects_to database: { writing: :animals_primary, reading: :animals_replica } - end - - class Dog < AnimalsModel - # connected to both the animals_primary db for writing and the animals_replica for reading - end - ``` - - 2) Adds a `connected_to` block method for switching connection roles or connecting to - a database that the model didn't connect to. Connecting to the database in this block is - useful when you have another defined connection, for example `slow_replica` that you don't - want to connect to by default but need in the console, or a specific code block. - - ``` - ActiveRecord::Base.connected_to(role: :reading) do - Dog.first # finds dog from replica connected to AnimalsBase - Book.first # doesn't have a reading connection, will raise an error - end - ``` - - ``` - ActiveRecord::Base.connected_to(database: :slow_replica) do - SlowReplicaModel.first # if the db config has a slow_replica configuration this will be used to do the lookup, otherwise this will throw an exception - end - ``` - - *Eileen M. Uchitelle* - -* Enum raises on invalid definition values - - When defining a Hash enum it can be easy to use [] instead of {}. This - commit checks that only valid definition values are provided, those can - be a Hash, an array of Symbols or an array of Strings. Otherwise it - raises an ArgumentError. - - Fixes #33961 - - *Alberto Almagro* - -* Reloading associations now clears the Query Cache like `Persistence#reload` does. - - ``` - class Post < ActiveRecord::Base - has_one :category - belongs_to :author - has_many :comments - end - - # Each of the following will now clear the query cache. - post.reload_category - post.reload_author - post.comments.reload - ``` - - *Christophe Maximin* - -* Added `index` option for `change_table` migration helpers. - With this change you can create indexes while adding new - columns into the existing tables. - - Example: - - change_table(:languages) do |t| - t.string :country_code, index: true - end - - *Mehmet Emin İNAÇ* - -* Fix `transaction` reverting for migrations. - - Before: Commands inside a `transaction` in a reverted migration ran uninverted. - Now: This change fixes that by reverting commands inside `transaction` block. - - *fatkodima*, *David Verhasselt* - -* Raise an error instead of scanning the filesystem root when `fixture_path` is blank. - - *Gannon McGibbon*, *Max Albrecht* - -* Allow `ActiveRecord::Base.configurations=` to be set with a symbolized hash. - - *Gannon McGibbon* - -* Don't update counter cache unless the record is actually saved. - - Fixes #31493, #33113, #33117. + Fixes #36022. *Ryuta Kamizono* -* Deprecate `ActiveRecord::Result#to_hash` in favor of `ActiveRecord::Result#to_a`. - - *Gannon McGibbon*, *Kevin Cheng* - -* SQLite3 adapter supports expression indexes. - - ``` - create_table :users do |t| - t.string :email - end - - add_index :users, 'lower(email)', name: 'index_users_on_email', unique: true - ``` - - *Gray Kemmey* - -* Allow subclasses to redefine autosave callbacks for associated records. - - Fixes #33305. - - *Andrey Subbota* - -* Bump minimum MySQL version to 5.5.8. - - *Yasuo Honda* - -* Use MySQL utf8mb4 character set by default. - - `utf8mb4` character set with 4-Byte encoding supports supplementary characters including emoji. - The previous default 3-Byte encoding character set `utf8` is not enough to support them. - - *Yasuo Honda* - -* Fix duplicated record creation when using nested attributes with `create_with`. - - *Darwin Wu* - -* Configuration item `config.filter_parameters` could also filter out - sensitive values of database columns when call `#inspect`. - We also added `ActiveRecord::Base::filter_attributes`/`=` in order to - specify sensitive attributes to specific model. - - ``` - Rails.application.config.filter_parameters += [:credit_card_number, /phone/] - Account.last.inspect # => #<Account id: 123, name: "DHH", credit_card_number: [FILTERED], telephone_number: [FILTERED] ...> - SecureAccount.filter_attributes += [:name] - SecureAccount.last.inspect # => #<SecureAccount id: 42, name: [FILTERED], credit_card_number: [FILTERED] ...> - ``` - - *Zhang Kang*, *Yoshiyuki Kinjo* - -* Deprecate `column_name_length`, `table_name_length`, `columns_per_table`, - `indexes_per_table`, `columns_per_multicolumn_index`, `sql_query_length`, - and `joins_per_query` methods in `DatabaseLimits`. - - *Ryuta Kamizono* - -* `ActiveRecord::Base.configurations` now returns an object. - - `ActiveRecord::Base.configurations` used to return a hash, but this - is an inflexible data model. In order to improve multiple-database - handling in Rails, we've changed this to return an object. Some methods - are provided to make the object behave hash-like in order to ease the - transition process. Since most applications don't manipulate the hash - we've decided to add backwards-compatible functionality that will throw - a deprecation warning if used, however calling `ActiveRecord::Base.configurations` - will use the new version internally and externally. - - For example, the following `database.yml`: - - ``` - development: - adapter: sqlite3 - database: db/development.sqlite3 - ``` - - Used to become a hash: - - ``` - { "development" => { "adapter" => "sqlite3", "database" => "db/development.sqlite3" } } - ``` - - Is now converted into the following object: - - ``` - #<ActiveRecord::DatabaseConfigurations:0x00007fd1acbdf800 @configurations=[ - #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbded10 @env_name="development", - @spec_name="primary", @config={"adapter"=>"sqlite3", "database"=>"db/development.sqlite3"}> - ] - ``` - - Iterating over the database configurations has also changed. Instead of - calling hash methods on the `configurations` hash directly, a new method `configs_for` has - been provided that allows you to select the correct configuration. `env_name`, and - `spec_name` arguments are optional. For example these return an array of - database config objects for the requested environment and a single database config object - will be returned for the requested environment and specification name respectively. - - ``` - ActiveRecord::Base.configurations.configs_for(env_name: "development") - ActiveRecord::Base.configurations.configs_for(env_name: "development", spec_name: "primary") - ``` - - *Eileen M. Uchitelle*, *Aaron Patterson* - -* Add database configuration to disable advisory locks. - - ``` - production: - adapter: postgresql - advisory_locks: false - ``` - - *Guo Xiang* - -* SQLite3 adapter `alter_table` method restores foreign keys. - - *Yasuo Honda* - -* Allow `:to_table` option to `invert_remove_foreign_key`. - - Example: - - remove_foreign_key :accounts, to_table: :owners - - *Nikolay Epifanov*, *Rich Chen* - -* Add environment & load_config dependency to `bin/rake db:seed` to enable - seed load in environments without Rails and custom DB configuration - - *Tobias Bielohlawek* - -* Fix default value for mysql time types with specified precision. - - *Nikolay Kondratyev* - -* Fix `touch` option to behave consistently with `Persistence#touch` method. - - *Ryuta Kamizono* - -* Migrations raise when duplicate column definition. - - Fixes #33024. - - *Federico Martinez* - -* Bump minimum SQLite version to 3.8 - - *Yasuo Honda* - -* Fix parent record should not get saved with duplicate children records. - - Fixes #32940. - - *Santosh Wadghule* - -* Fix logic on disabling commit callbacks so they are not called unexpectedly when errors occur. - - *Brian Durand* - -* Ensure `Associations::CollectionAssociation#size` and `Associations::CollectionAssociation#empty?` - use loaded association ids if present. - - *Graham Turner* - -* Add support to preload associations of polymorphic associations when not all the records have the requested associations. - - *Dana Sherson* - -* Add `touch_all` method to `ActiveRecord::Relation`. - - Example: - - Person.where(name: "David").touch_all(time: Time.new(2020, 5, 16, 0, 0, 0)) +* Make ActiveRecord `ConnectionPool.connections` method thread-safe. - *fatkodima*, *duggiefresh* + Fixes #36465. -* Add `ActiveRecord::Base.base_class?` predicate. + *Jeff Doering* - *Bogdan Gusiev* +* Add support for multiple databases to `rails db:abort_if_pending_migrations`. -* Add custom prefix/suffix options to `ActiveRecord::Store.store_accessor`. + *Mark Lee* - *Tan Huynh*, *Yukio Mizuta* +* Fix sqlite3 collation parsing when using decimal columns. -* Rails 6 requires Ruby 2.4.1 or newer. + *Martin R. Schuster* - *Jeremy Daer* +* Fix invalid schema when primary key column has a comment. -* Deprecate `update_attributes`/`!` in favor of `update`/`!`. + Fixes #29966. - *Eddie Lebow* + *Guilherme Goettems Schneider* -* Add `ActiveRecord::Base.create_or_find_by`/`!` to deal with the SELECT/INSERT race condition in - `ActiveRecord::Base.find_or_create_by`/`!` by leaning on unique constraints in the database. +* Fix table comment also being applied to the primary key column. - *DHH* + *Guilherme Goettems Schneider* -* Add `Relation#pick` as short-hand for single-value plucks. +* Allow generated `create_table` migrations to include or skip timestamps. - *DHH* + *Michael Duchemin* -Please check [5-2-stable](https://github.com/rails/rails/blob/5-2-stable/activerecord/CHANGELOG.md) for previous changes. +Please check [6-0-stable](https://github.com/rails/rails/blob/6-0-stable/activerecord/CHANGELOG.md) for previous changes. |