* Remove deprecated `ActiveRecord::ConnectionAdapters::SchemaCache.load_from`. *Rafael Mendonça França* * Remove deprecated `#all_foreign_keys_valid?` from database adapters. *Rafael Mendonça França* * Remove deprecated support to passing coder and class as second argument to `serialize`. *Rafael Mendonça França* * Remove deprecated support to `ActiveRecord::Base#read_attribute(:id)` to return the custom primary key value. *Rafael Mendonça França* * Remove deprecated `TestFixtures.fixture_path`. *Rafael Mendonça França* * Remove deprecated behavior to support referring to a singular association by its plural name. *Rafael Mendonça França* * Deprecate `Rails.application.config.active_record.allow_deprecated_singular_associations_name` *Rafael Mendonça França* * Remove deprecated support to passing `SchemaMigration` and `InternalMetadata` classes as arguments to `ActiveRecord::MigrationContext`. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::Migration.check_pending` method. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::LogSubscriber.runtime` method. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::LogSubscriber.runtime=` method. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::LogSubscriber.reset_runtime` method. *Rafael Mendonça França* * Remove deprecated support to define `explain` in the connection adapter with 2 arguments. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::ActiveJobRequiredError`. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::Base.clear_active_connections!`. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::Base.clear_reloadable_connections!`. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::Base.clear_all_connections!`. *Rafael Mendonça França* * Remove deprecated `ActiveRecord::Base.flush_idle_connections!`. *Rafael Mendonça França* * Remove deprecated `name` argument from `ActiveRecord::Base.remove_connection`. *Rafael Mendonça França* * Remove deprecated support to call `alias_attribute` with non-existent attribute names. *Rafael Mendonça França* * Remove deprecated `Rails.application.config.active_record.suppress_multiple_database_warning`. *Rafael Mendonça França* * Add ActiveRecord::Encryption::MessagePackMessageSerializer Serialize data to the MessagePack format, for efficient storage in binary columns. The binary encoding requires around 30% less space than the base64 encoding used by the default serializer. *Donal McBreen* * Add support for encrypting binary columns Ensure encryption and decryption pass `Type::Binary::Data` around for binary data. Previously encrypting binary columns with the `ActiveRecord::Encryption::MessageSerializer` incidentally worked for MySQL and SQLite, but not PostgreSQL. *Donal McBreen* * Deprecated `ENV["SCHEMA_CACHE"]` in favor of `schema_cache_path` in the database configuration. *Rafael Mendonça França* * Add `ActiveRecord::Base.with_connection` as a shortcut for leasing a connection for a short duration. The leased connection is yielded, and for the duration of the block, any call to `ActiveRecord::Base.connection` will yield that same connection. This is useful to perform a few database operations without causing a connection to be leased for the entire duration of the request or job. *Jean Boussier* * Deprecate `config.active_record.warn_on_records_fetched_greater_than` now that `sql.active_record` notification includes `:row_count` field. *Jason Nochlin* * Fix an issue where `ActiveRecord::Encryption` configurations are not ready before the loading of Active Record models, when an application is eager loaded. As a result, encrypted attributes could be misconfigured in some cases. *Maxime Réty* * Deprecate defining an `enum` with keyword arguments. ```ruby class Function > ApplicationRecord # BAD enum color: [:red, :blue], type: [:instance, :class] # GOOD enum :color, [:red, :blue] enum :type, [:instance, :class] end ``` *Hartley McGuire* * Add `active_record.config.validate_migration_timestamps` option for validating migration timestamps. When set, validates that the timestamp prefix for a migration is no more than a day ahead of the timestamp associated with the current time. This is designed to prevent migrations prefixes from being hand-edited to future timestamps, which impacts migration generation and other migration commands. *Adrianna Chang* * Properly synchronize `Mysql2Adapter#active?` and `TrilogyAdapter#active?` As well as `disconnect!` and `verify!`. This generally isn't a big problem as connections must not be shared between threads, but is required when running transactional tests or system tests and could lead to a SEGV. *Jean Boussier* * Support `:source_location` tag option for query log tags ```ruby config.active_record.query_log_tags << :source_location ``` Calculating the caller location is a costly operation and should be used primarily in development (note, there is also a `config.active_record.verbose_query_logs` that serves the same purpose) or occasionally on production for debugging purposes. *fatkodima* * Add an option to `ActiveRecord::Encryption::Encryptor` to disable compression Allow compression to be disabled by setting `compress: false` ```ruby class User encrypts :name, encryptor: ActiveRecord::Encryption::Encryptor.new(compress: false) end ``` *Donal McBreen* * Deprecate passing strings to `ActiveRecord::Tasks::DatabaseTasks.cache_dump_filename`. A `ActiveRecord::DatabaseConfigurations::DatabaseConfig` object should be passed instead. *Rafael Mendonça França* * Add row_count field to sql.active_record notification This field returns the amount of rows returned by the query that emitted the notification. This metric is useful in cases where one wants to detect queries with big result sets. *Marvin Bitterlich* * Consistently raise an `ArgumentError` when passing an invalid argument to a nested attributes association writer. Previously, this would only raise on collection associations and produce a generic error on singular associations. Now, it will raise on both collection and singular associations. *Joshua Young* * Fix single quote escapes on default generated MySQL columns MySQL 5.7.5+ supports generated columns, which can be used to create a column that is computed from an expression. Previously, the schema dump would output a string with double escapes for generated columns with single quotes in the default expression. This would result in issues when importing the schema on a fresh instance of a MySQL database. Now, the string will not be escaped and will be valid Ruby upon importing of the schema. *Yash Kapadia* * Fix Migrations with versions older than 7.1 validating options given to `add_reference` and `t.references`. *Hartley McGuire* * Add `_types` class method to `ActiveRecord::DelegatedType` so that the delegated types can be instrospected *JP Rosevear* * Make `schema_dump`, `query_cache`, `replica` and `database_tasks` configurable via `DATABASE_URL` This wouldn't always work previously because boolean values would be interpreted as strings. e.g. `DATABASE_URL=postgres://localhost/foo?schema_dump=false` now properly disable dumping the schema cache. *Mike Coutermarsh*, *Jean Boussier* * Introduce `ActiveRecord::Transactions::ClassMethods#set_callback` It is identical to `ActiveSupport::Callbacks::ClassMethods#set_callback` but with support for `after_commit` and `after_rollback` callback options. *Joshua Young* * Make `ActiveRecord::Encryption::Encryptor` agnostic of the serialization format used for encrypted data. Previously, the encryptor instance only allowed an encrypted value serialized as a `String` to be passed to the message serializer. Now, the encryptor lets the configured `message_serializer` decide which types of serialized encrypted values are supported. A custom serialiser is therefore allowed to serialize `ActiveRecord::Encryption::Message` objects using a type other than `String`. The default `ActiveRecord::Encryption::MessageSerializer` already ensures that only `String` objects are passed for deserialization. *Maxime Réty* * Fix `encrypted_attribute?` to take into account context properties passed to `encrypts`. *Maxime Réty* * The object returned by `explain` now responds to `pluck`, `first`, `last`, `average`, `count`, `maximum`, `minimum`, and `sum`. Those new methods run `EXPLAIN` on the corresponding queries: ```ruby User.all.explain.count # EXPLAIN SELECT COUNT(*) FROM `users` # ... User.all.explain.maximum(:id) # EXPLAIN SELECT MAX(`users`.`id`) FROM `users` # ... ``` *Petrik de Heus* * Fixes an issue where `validates_associated` `:on` option wasn't respected when validating associated records. *Austen Madden*, *Alex Ghiculescu*, *Rafał Brize* * Allow overriding SQLite defaults from `database.yml`. Any PRAGMA configuration set under the `pragmas` key in the configuration file takes precedence over Rails' defaults, and additional PRAGMAs can be set as well. ```yaml database: storage/development.sqlite3 timeout: 5000 pragmas: journal_mode: off temp_store: memory ``` *Stephen Margheim* * Remove warning message when running SQLite in production, but leave it unconfigured. There are valid use cases for running SQLite in production. However, it must be done with care, so instead of a warning most users won't see anyway, it's preferable to leave the configuration commented out to force them to think about having the database on a persistent volume etc. *Jacopo Beschi*, *Jean Boussier* * Add support for generated columns to the SQLite3 adapter. Generated columns (both stored and dynamic) are supported since version 3.31.0 of SQLite. This adds support for those to the SQLite3 adapter. ```ruby create_table :users do |t| t.string :name t.virtual :name_upper, type: :string, as: 'UPPER(name)' t.virtual :name_lower, type: :string, as: 'LOWER(name)', stored: true end ``` *Stephen Margheim* * TrilogyAdapter: ignore `host` if `socket` parameter is set. This allows to configure a connection on a UNIX socket via `DATABASE_URL`: ``` DATABASE_URL=trilogy://does-not-matter/my_db_production?socket=/var/run/mysql.sock ``` *Jean Boussier* * Make `assert_queries_count`, `assert_no_queries`, `assert_queries_match`, and `assert_no_queries_match` assertions public. To assert the expected number of queries are made, Rails internally uses `assert_queries_count` and `assert_no_queries`. To assert that specific SQL queries are made, `assert_queries_match` and `assert_no_queries_match` are used. These assertions can now be used in applications as well. ```ruby class ArticleTest < ActiveSupport::TestCase test "queries are made" do assert_queries_count(1) { Article.first } end test "creates a foreign key" do assert_queries_match(/ADD FOREIGN KEY/i, include_schema: true) do @connection.add_foreign_key(:comments, :posts) end end end ``` *Petrik de Heus*, *fatkodima* * Fix `has_secure_token` calls the setter method on initialize. *Abeid Ahmed* * When using a `DATABASE_URL`, allow for a configuration to map the protocol in the URL to a specific database adapter. This allows decoupling the adapter the application chooses to use from the database connection details set in the deployment environment. ```ruby # ENV['DATABASE_URL'] = "mysql://localhost/example_database" config.active_record.protocol_adapters.mysql = "trilogy" # will connect to MySQL using the trilogy adapter ``` *Jean Boussier*, *Kevin McPhillips* * In cases where MySQL returns `warning_count` greater than zero, but returns no warnings when the `SHOW WARNINGS` query is executed, `ActiveRecord.db_warnings_action` proc will still be called with a generic warning message rather than silently ignoring the warning(s). *Kevin McPhillips* * `DatabaseConfigurations#configs_for` accepts a symbol in the `name` parameter. *Andrew Novoselac* * Fix `where(field: values)` queries when `field` is a serialized attribute (for example, when `field` uses `ActiveRecord::Base.serialize` or is a JSON column). *João Alves* * Make the output of `ActiveRecord::Core#inspect` configurable. By default, calling `inspect` on a record will yield a formatted string including just the `id`. ```ruby Post.first.inspect #=> "#" ``` The attributes to be included in the output of `inspect` can be configured with `ActiveRecord::Core#attributes_for_inspect`. ```ruby Post.attributes_for_inspect = [:id, :title] Post.first.inspect #=> "#" ``` With `attributes_for_inspect` set to `:all`, `inspect` will list all the record's attributes. ```ruby Post.attributes_for_inspect = :all Post.first.inspect #=> "#" ``` In `development` and `test` mode, `attributes_for_inspect` will be set to `:all` by default. You can also call `full_inspect` to get an inspection with all the attributes. The attributes in `attribute_for_inspect` will also be used for `pretty_print`. *Andrew Novoselac* * Don't mark attributes as changed when reassigned to `Float::INFINITY` or `-Float::INFINITY`. *Maicol Bentancor* * Support the `RETURNING` clause for MariaDB. *fatkodima*, *Nikolay Kondratyev* * The SQLite3 adapter now implements the `supports_deferrable_constraints?` contract. Allows foreign keys to be deferred by adding the `:deferrable` key to the `foreign_key` options. ```ruby add_reference :person, :alias, foreign_key: { deferrable: :deferred } add_reference :alias, :person, foreign_key: { deferrable: :deferred } ``` *Stephen Margheim* * Add the `set_constraints` helper to PostgreSQL connections. ```ruby Post.create!(user_id: -1) # => ActiveRecord::InvalidForeignKey Post.transaction do Post.connection.set_constraints(:deferred) p = Post.create!(user_id: -1) u = User.create! p.user = u p.save! end ``` *Cody Cutrer* * Include `ActiveModel::API` in `ActiveRecord::Base`. *Sean Doyle* * Ensure `#signed_id` outputs `url_safe` strings. *Jason Meller* * Add `nulls_last` and working `desc.nulls_first` for MySQL. *Tristan Fellows* Please check [7-1-stable](https://github.com/rails/rails/blob/7-1-stable/activerecord/CHANGELOG.md) for previous changes.