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  • Add explain support for last, pluck and count

    Let explain return a proxy that delegates these methods:

    User.all.explain.count
# EXPLAIN SELECT COUNT(*) FROM `users`
# ...

User.all.explain.maximum(:id)
# EXPLAIN SELECT MAX(`users`.`id`) FROM `users`
# ...

    Petrik de Heus

  • Validate using :on option when using validates_associated

    Fixes an issue where validates_associated :on option wasn't respected when validated 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 take precedence over Rails' defaults, and additional PRAGMAs can be set as well.

    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 in 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.

    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.

    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.

    # 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 can accept 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.

    Post.first.inspect #=> "#<Post id: 1>"

    The attributes to be included in the output of inspect can be configured with ActiveRecord::Core#attributes_for_inspect.

    Post.attributes_for_inspect = [:id, :title]
Post.first.inspect #=> "#<Post id: 1, title: "Hello, World!">"

    With the attributes_for_inspect set to :all, inspect will list all the record's attributes.

    Post.attributes_for_inspect = :all
Post.first.inspect #=> "#<Post id: 1, title: "Hello, World!", published_at: "2023-10-23 14:28:11 +0000">"

    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 Float::INFINITY as changed when reassigning it

    When saving a record with a float infinite value, it shouldn't mark as changed

    Maicol Bentancor

  • Support 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.

    add_reference :person, :alias, foreign_key: { deferrable: :deferred }
add_reference :alias, :person, foreign_key: { deferrable: :deferred }

    Stephen Margheim

  • Add set_constraints helper for PostgreSQL

    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 for previous changes.