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-rw-r--r--Gemfile.lock4
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb12
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb4
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb4
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb2
-rw-r--r--activerecord/lib/active_record/insert_all.rb9
-rw-r--r--activerecord/lib/active_record/relation/calculations.rb11
-rw-r--r--activerecord/test/cases/calculations_test.rb11
-rw-r--r--activerecord/test/cases/insert_all_test.rb87
-rw-r--r--activerecord/test/schema/schema.rb1
-rw-r--r--activesupport/CHANGELOG.md6
-rw-r--r--activesupport/activesupport.gemspec2
-rw-r--r--activesupport/lib/active_support/dependencies/zeitwerk_integration.rb7
-rw-r--r--guides/source/6_0_release_notes.md227
-rw-r--r--guides/source/engines.md4
-rw-r--r--railties/lib/rails/application/finisher.rb2
-rw-r--r--railties/test/application/zeitwerk_integration_test.rb14
17 files changed, 382 insertions, 25 deletions
diff --git a/Gemfile.lock b/Gemfile.lock
index 92dcee9542..b1f9991adc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,7 +71,7 @@ PATH
i18n (>= 0.7, < 2)
minitest (~> 5.1)
tzinfo (~> 1.1)
- zeitwerk (~> 1.4, >= 1.4.3)
+ zeitwerk (~> 2.0)
rails (6.0.0.beta3)
actioncable (= 6.0.0.beta3)
actionmailbox (= 6.0.0.beta3)
@@ -526,7 +526,7 @@ GEM
websocket-extensions (0.1.3)
xpath (3.2.0)
nokogiri (~> 1.8)
- zeitwerk (1.4.3)
+ zeitwerk (2.0.0)
PLATFORMS
java
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
index 1305216be2..75e959045e 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_limits.rb
@@ -5,20 +5,24 @@ require "active_support/deprecation"
module ActiveRecord
module ConnectionAdapters # :nodoc:
module DatabaseLimits
+ def max_identifier_length # :nodoc:
+ 64
+ end
+
# Returns the maximum length of a table alias.
def table_alias_length
- 255
+ max_identifier_length
end
# Returns the maximum length of a column name.
def column_name_length
- 64
+ max_identifier_length
end
deprecate :column_name_length
# Returns the maximum length of a table name.
def table_name_length
- 64
+ max_identifier_length
end
deprecate :table_name_length
@@ -33,7 +37,7 @@ module ActiveRecord
# Returns the maximum length of an index name.
def index_name_length
- 64
+ max_identifier_length
end
# Returns the maximum number of columns per table.
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index f5da19f0f6..ca8bbc14da 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -516,8 +516,8 @@ module ActiveRecord
sql = +"INSERT #{insert.into} #{insert.values_list}"
if insert.skip_duplicates?
- any_column = quote_column_name(insert.model.columns.first.name)
- sql << " ON DUPLICATE KEY UPDATE #{any_column}=#{any_column}"
+ no_op_column = quote_column_name(insert.keys.first)
+ sql << " ON DUPLICATE KEY UPDATE #{no_op_column}=#{no_op_column}"
elsif insert.update_duplicates?
sql << " ON DUPLICATE KEY UPDATE "
sql << insert.updatable_columns.map { |column| "#{column}=VALUES(#{column})" }.join(",")
diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb
index a1f90a0642..ad3a8d1fd9 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb
@@ -121,6 +121,10 @@ module ActiveRecord
sql
end
+ def table_alias_length
+ 256 # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
+ end
+
private
CHARSETS_OF_4BYTES_MAXLEN = ["utf8mb4", "utf16", "utf16le", "utf32"]
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 0ed4e61d18..f8c2e48808 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -400,8 +400,6 @@ module ActiveRecord
def max_identifier_length
@max_identifier_length ||= query_value("SHOW max_identifier_length", "SCHEMA").to_i
end
- alias table_alias_length max_identifier_length
- alias index_name_length max_identifier_length
# Set the authorized user for this session
def session_auth=(user)
diff --git a/activerecord/lib/active_record/insert_all.rb b/activerecord/lib/active_record/insert_all.rb
index 4b02d40aa0..ed7a37b255 100644
--- a/activerecord/lib/active_record/insert_all.rb
+++ b/activerecord/lib/active_record/insert_all.rb
@@ -21,7 +21,10 @@ module ActiveRecord
end
def execute
- connection.exec_query to_sql, "Bulk Insert"
+ message = "#{model} "
+ message += "Bulk " if inserts.many?
+ message += (on_duplicate == :update ? "Upsert" : "Insert")
+ connection.exec_query to_sql, message
end
def updatable_columns
@@ -111,7 +114,7 @@ module ActiveRecord
class Builder
attr_reader :model
- delegate :skip_duplicates?, :update_duplicates?, to: :insert_all
+ delegate :skip_duplicates?, :update_duplicates?, :keys, to: :insert_all
def initialize(insert_all)
@insert_all, @model, @connection = insert_all, insert_all.model, insert_all.connection
@@ -122,7 +125,7 @@ module ActiveRecord
end
def values_list
- types = extract_types_from_columns_on(model.table_name, keys: insert_all.keys)
+ types = extract_types_from_columns_on(model.table_name, keys: keys)
values_list = insert_all.map_key_with_value do |key, value|
bind = Relation::QueryAttribute.new(key, value, types[key])
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
index 910c6b3214..801e312658 100644
--- a/activerecord/lib/active_record/relation/calculations.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -319,12 +319,11 @@ module ActiveRecord
group_aliases = group_fields.map { |field|
field = connection.visitor.compile(field) if Arel.arel_node?(field)
- column_alias_for(field)
+ column_alias_for(field.to_s.downcase)
}
group_columns = group_aliases.zip(group_fields)
- aggregate_alias = "#{operation}_#{column_name.to_s.downcase}"
- aggregate_alias = column_alias_for(aggregate_alias) unless aggregate_alias.match?(/\A\w+\z/)
+ aggregate_alias = column_alias_for("#{operation}_#{column_name.to_s.downcase}")
select_values = [
operation_over_aggregate_column(
@@ -369,7 +368,7 @@ module ActiveRecord
end]
end
- # Converts the given keys to the value that the database adapter returns as
+ # Converts the given field to the value that the database adapter returns as
# a usable column name:
#
# column_alias_for("users.id") # => "users_id"
@@ -377,7 +376,9 @@ module ActiveRecord
# column_alias_for("count(distinct users.id)") # => "count_distinct_users_id"
# column_alias_for("count(*)") # => "count_all"
def column_alias_for(field)
- column_alias = field.to_s.downcase
+ return field if field.match?(/\A\w{,#{connection.table_alias_length}}\z/)
+
+ column_alias = +field
column_alias.gsub!(/\*/, "all")
column_alias.gsub!(/\W+/, " ")
column_alias.strip!
diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb
index c4070fc341..16c2a3661d 100644
--- a/activerecord/test/cases/calculations_test.rb
+++ b/activerecord/test/cases/calculations_test.rb
@@ -363,6 +363,17 @@ class CalculationsTest < ActiveRecord::TestCase
assert_equal 60, c[2]
end
+ def test_should_calculate_grouped_with_longer_field
+ field = "a" * Account.connection.max_identifier_length
+
+ Account.update_all("#{field} = credit_limit")
+
+ c = Account.group(:firm_id).sum(field)
+ assert_equal 50, c[1]
+ assert_equal 105, c[6]
+ assert_equal 60, c[2]
+ end
+
def test_should_calculate_with_invalid_field
assert_equal 6, Account.calculate(:count, "*")
assert_equal 6, Account.calculate(:count, :all)
diff --git a/activerecord/test/cases/insert_all_test.rb b/activerecord/test/cases/insert_all_test.rb
index fc25701c80..f24c63031c 100644
--- a/activerecord/test/cases/insert_all_test.rb
+++ b/activerecord/test/cases/insert_all_test.rb
@@ -104,6 +104,44 @@ class InsertAllTest < ActiveRecord::TestCase
end
end
+ def test_insert_all_with_skip_duplicates_and_autonumber_id_not_given
+ skip unless supports_insert_on_duplicate_skip?
+
+ assert_difference "Book.count", 1 do
+ # These two books are duplicates according to an index on %i[author_id name]
+ # but their IDs are not specified so they will be assigned different IDs
+ # by autonumber. We will get an exception from MySQL if we attempt to skip
+ # one of these records by assigning its ID.
+ Book.insert_all [
+ { author_id: 8, name: "Refactoring" },
+ { author_id: 8, name: "Refactoring" }
+ ]
+ end
+ end
+
+ def test_insert_all_with_skip_duplicates_and_autonumber_id_given
+ skip unless supports_insert_on_duplicate_skip?
+
+ assert_difference "Book.count", 1 do
+ Book.insert_all [
+ { id: 200, author_id: 8, name: "Refactoring" },
+ { id: 201, author_id: 8, name: "Refactoring" }
+ ]
+ end
+ end
+
+ def test_skip_duplicates_strategy_does_not_secretly_upsert
+ skip unless supports_insert_on_duplicate_skip?
+
+ book = Book.create!(author_id: 8, name: "Refactoring", format: "EXPECTED")
+
+ assert_no_difference "Book.count" do
+ Book.insert(author_id: 8, name: "Refactoring", format: "UNEXPECTED")
+ end
+
+ assert_equal "EXPECTED", book.reload.format
+ end
+
def test_insert_all_will_raise_if_duplicates_are_skipped_only_for_a_certain_conflict_target
skip unless supports_insert_on_duplicate_skip? && supports_insert_conflict_target?
@@ -143,6 +181,42 @@ class InsertAllTest < ActiveRecord::TestCase
end
end
+ def test_insert_logs_message_including_model_name
+ skip unless supports_insert_conflict_target?
+
+ capture_log_output do |output|
+ Book.insert(name: "Rework", author_id: 1)
+ assert_match "Book Insert", output.string
+ end
+ end
+
+ def test_insert_all_logs_message_including_model_name
+ skip unless supports_insert_conflict_target?
+
+ capture_log_output do |output|
+ Book.insert_all [{ name: "Remote", author_id: 1 }, { name: "Renote", author_id: 1 }]
+ assert_match "Book Bulk Insert", output.string
+ end
+ end
+
+ def test_upsert_logs_message_including_model_name
+ skip unless supports_insert_on_duplicate_update?
+
+ capture_log_output do |output|
+ Book.upsert(name: "Remote", author_id: 1)
+ assert_match "Book Upsert", output.string
+ end
+ end
+
+ def test_upsert_all_logs_message_including_model_name
+ skip unless supports_insert_on_duplicate_update?
+
+ capture_log_output do |output|
+ Book.upsert_all [{ name: "Remote", author_id: 1 }, { name: "Renote", author_id: 1 }]
+ assert_match "Book Bulk Upsert", output.string
+ end
+ end
+
def test_upsert_all_updates_existing_records
skip unless supports_insert_on_duplicate_update?
@@ -186,4 +260,17 @@ class InsertAllTest < ActiveRecord::TestCase
Book.insert_all! [{ unknown_attribute: "Test" }]
end
end
+
+ private
+
+ def capture_log_output
+ output = StringIO.new
+ old_logger, ActiveRecord::Base.logger = ActiveRecord::Base.logger, ActiveSupport::Logger.new(output)
+
+ begin
+ yield output
+ ensure
+ ActiveRecord::Base.logger = old_logger
+ end
+ end
end
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index ead4de2a13..548671045b 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -19,6 +19,7 @@ ActiveRecord::Schema.define do
t.references :firm, index: false
t.string :firm_name
t.integer :credit_limit
+ t.integer "a" * max_identifier_length
end
create_table :admin_accounts, force: true do |t|
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index db9c7e96f3..cf72673dbb 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,3 +1,9 @@
+* Depends on Zeitwerk 2, which stores less metadata if reloading is disabled
+ and hence uses less memory when `config.cache_classes` is `true`, a standard
+ setup in production.
+
+ *Xavier Noria*
+
* In `:zeitwerk` mode, eager load directories in engines and applications only
if present in their respective `config.eager_load_paths`.
diff --git a/activesupport/activesupport.gemspec b/activesupport/activesupport.gemspec
index bf0fe0f76d..e719fc6176 100644
--- a/activesupport/activesupport.gemspec
+++ b/activesupport/activesupport.gemspec
@@ -34,5 +34,5 @@ Gem::Specification.new do |s|
s.add_dependency "tzinfo", "~> 1.1"
s.add_dependency "minitest", "~> 5.1"
s.add_dependency "concurrent-ruby", "~> 1.0", ">= 1.0.2"
- s.add_dependency "zeitwerk", "~> 1.4", ">= 1.4.3"
+ s.add_dependency "zeitwerk", "~> 2.0"
end
diff --git a/activesupport/lib/active_support/dependencies/zeitwerk_integration.rb b/activesupport/lib/active_support/dependencies/zeitwerk_integration.rb
index a43d03cf09..faf9edef27 100644
--- a/activesupport/lib/active_support/dependencies/zeitwerk_integration.rb
+++ b/activesupport/lib/active_support/dependencies/zeitwerk_integration.rb
@@ -51,15 +51,15 @@ module ActiveSupport
end
class << self
- def take_over
- setup_autoloaders
+ def take_over(enable_reloading:)
+ setup_autoloaders(enable_reloading)
freeze_paths
decorate_dependencies
end
private
- def setup_autoloaders
+ def setup_autoloaders(enable_reloading)
Dependencies.autoload_paths.each do |autoload_path|
# Zeitwerk only accepts existing directories in `push_dir` to
# prevent misconfigurations.
@@ -72,6 +72,7 @@ module ActiveSupport
autoloader.do_not_eager_load(autoload_path) unless eager_load?(autoload_path)
end
+ Rails.autoloaders.main.enable_reloading if enable_reloading
Rails.autoloaders.each(&:setup)
end
diff --git a/guides/source/6_0_release_notes.md b/guides/source/6_0_release_notes.md
index a4edaa1180..f1f41dc8fc 100644
--- a/guides/source/6_0_release_notes.md
+++ b/guides/source/6_0_release_notes.md
@@ -211,10 +211,237 @@ Please refer to the [Changelog][active-record] for detailed changes.
### Removals
+* Remove deprecated `#set_state` from the transaction object.
+ ([Commit](https://github.com/rails/rails/commit/6c745b0c5152a4437163a67707e02f4464493983))
+
+* Remove deprecated `#supports_statement_cache?` from the database adapters.
+ ([Commit](https://github.com/rails/rails/commit/5f3ed8784383fb4eb0f9959f31a9c28a991b7553))
+
+* Remove deprecated `#insert_fixtures` from the database adapters.
+ ([Commit](https://github.com/rails/rails/commit/400ba786e1d154448235f5f90183e48a1043eece))
+
+* Remove deprecated `ActiveRecord::ConnectionAdapters::SQLite3Adapter#valid_alter_table_type?`.
+ ([Commit](https://github.com/rails/rails/commit/45b4d5f81f0c0ca72c18d0dea4a3a7b2ecc589bf))
+
+* Remove support for passing the column name to `sum` when a block is passed.
+ ([Commit](https://github.com/rails/rails/commit/91ddb30083430622188d76eb9f29b78131df67f9))
+
+* Remove support for passing the column name to `count` when a block is passed.
+ ([Commit](https://github.com/rails/rails/commit/67356f2034ab41305af7218f7c8b2fee2d614129))
+
+* Remove support for delegation of missing methods in a relation to arel.
+ ([Commit](https://github.com/rails/rails/commit/d97980a16d76ad190042b4d8578109714e9c53d0))
+
+* Remove support for delegating missing methods in a relation to private methods of the class.
+ ([Commit](https://github.com/rails/rails/commit/a7becf147afc85c354e5cfa519911a948d25fc4d))
+
+* Remove support for specifying a timestamp name for `#cache_key`.
+ ([Commit](https://github.com/rails/rails/commit/0bef23e630f62e38f20b5ae1d1d5dbfb087050ea))
+
+* Remove deprecated `ActiveRecord::Migrator.migrations_path=`.
+ ([Commit](https://github.com/rails/rails/commit/90d7842186591cae364fab3320b524e4d31a7d7d))
+
+* Remove deprecated `expand_hash_conditions_for_aggregates`.
+ ([Commit](https://github.com/rails/rails/commit/27b252d6a85e300c7236d034d55ec8e44f57a83e))
+
+
### Deprecations
+* Deprecate mismatched case-sensitivity collation comparisons for uniqueness validator.
+ ([Commit](https://github.com/rails/rails/commit/9def05385f1cfa41924bb93daa187615e88c95b9))
+
+* Deprecate using class level querying methods if the receiver scope has leaked.
+ ([Pull Request](https://github.com/rails/rails/pull/35280))
+
+* Deprecate `config.activerecord.sqlite3.represent_boolean_as_integer`.
+ ([Commit](https://github.com/rails/rails/commit/f59b08119bc0c01a00561d38279b124abc82561b))
+
+* Deprecate passing `migrations_paths` to `connection.assume_migrated_upto_version`.
+ ([Commit](https://github.com/rails/rails/commit/c1b14aded27e063ead32fa911aa53163d7cfc21a))
+
+* Deprecate `ActiveRecord::Result#to_hash` in favor of `ActiveRecord::Result#to_a`.
+ ([Commit](https://github.com/rails/rails/commit/16510d609c601aa7d466809f3073ec3313e08937))
+
+* Deprecate methods in `DatabaseLimits`: `column_name_length`, `table_name_length`,
+ `columns_per_table`, `indexes_per_table`, `columns_per_multicolumn_index`,
+ `sql_query_length`, and `joins_per_query`.
+ ([Commit](https://github.com/rails/rails/commit/e0a1235f7df0fa193c7e299a5adee88db246b44f))
+
+* Deprecate `update_attributes`/`!` in favor of `update`/`!`.
+ ([Commit](https://github.com/rails/rails/commit/5645149d3a27054450bd1130ff5715504638a5f5))
+
### Notable changes
+* Bump the minimum sqlite3 version to 1.4.
+ ([Pull Request](https://github.com/rails/rails/pull/35844))
+
+* Add `rails db:prepare` to create a database if it doesn't exist, and run its migrations.
+ ([Pull Request](https://github.com/rails/rails/pull/35768))
+
+* Add `after_save_commit` callback as shortcut for `after_commit :hook, on: [ :create, :update ]`.
+ ([Pull Request](https://github.com/rails/rails/pull/35804))
+
+* Add `ActiveRecord::Relation#extract_associated` for extracting associated records from a relation.
+ ([Pull Request](https://github.com/rails/rails/pull/35784))
+
+* Add `ActiveRecord::Relation#annotate` for adding SQL comments to ActiveRecord::Relation queries.
+ ([Pull Request](https://github.com/rails/rails/pull/35617))
+
+* Add support for setting Optimizer Hints on databases.
+ ([Pull Request](https://github.com/rails/rails/pull/35615))
+
+* Add `insert_all`/`insert_all!`/`upsert_all` methods for doing bulk inserts.
+ ([Pull Request](https://github.com/rails/rails/pull/35631))
+
+* Add `rails db:seed:replant` that truncates tables of each database
+ for ther current environment and loads the seeds.
+ ([Pull Request](https://github.com/rails/rails/pull/34779))
+
+* Add `reselect` method, which is a short-hand for `unscope(:select).select(fields)`.
+ ([Pull Request](https://github.com/rails/rails/pull/33611))
+
+* Add negative scopes for all enum values.
+ ([Pull Request](https://github.com/rails/rails/pull/35381))
+
+* Add `#destroy_by` and `#delete_by` for conditional removals.
+ ([Pull Request](https://github.com/rails/rails/pull/35316))
+
+* Add the ability to automatically switch database connections.
+ ([Pull Request](https://github.com/rails/rails/pull/35073))
+
+* Add the ability to prevent writes to a database for the duration of a block.
+ ([Pull Request](https://github.com/rails/rails/pull/34505))
+
+* Add an API for switching connections to support multiple databases.
+ ([Pull Request](https://github.com/rails/rails/pull/34052))
+
+* Make timestamps with precision the default for migrations.
+ ([Pull Request](https://github.com/rails/rails/pull/34970))
+
+* Support `:size` option to change text and blob size in MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/35071))
+
+* Set both the foreign key and the foreign type columns to NULL for
+ polymorphic associations on `dependent: :nullify` strategy.
+ ([Pull Request](https://github.com/rails/rails/pull/28078))
+
+* Allow a permitted instance of `ActionController::Parameters` to be passed as an
+ argument to `ActiveRecord::Relation#exists?`.
+ ([Pull Request](https://github.com/rails/rails/pull/34891))
+
+* Add support in `#where` for endless ranges introduced in Ruby 2.6.
+ ([Pull Request](https://github.com/rails/rails/pull/34906))
+
+* Make `ROW_FORMAT=DYNAMIC` a default create table option for MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/34742))
+
+* Add the ability to disable scopes generated by `ActiveRecord.enum`.
+ ([Pull Request](https://github.com/rails/rails/pull/34605/files))
+
+* Make implicit ordering configurable for a column.
+ ([Pull Request](https://github.com/rails/rails/pull/34480))
+
+* Bump the minimum PostgreSQL version to 9.3, dropping support for 9.1 and 9.2.
+ ([Pull Request](https://github.com/rails/rails/pull/34520))
+
+* Make the values of an enum frozen, raising an error when attempting to modify them.
+ ([Pull Request](https://github.com/rails/rails/pull/34517))
+
+* Make the SQL of `ActiveRecord::StatementInvalid` errors its own error property
+ and include SQL binds as a separate error property.
+ ([Pull Request](https://github.com/rails/rails/pull/34468))
+
+* Add an `:if_not_exists` option to `create_table`.
+ ([Pull Request](https://github.com/rails/rails/pull/31382))
+
+* Add support for multiple databases to `rails db:schema:cache:dump`
+ and `rails db:schema:cache:clear`.
+ ([Pull Request](https://github.com/rails/rails/pull/34181))
+
+* Add support for hash and url configs in database hash of `ActiveRecord::Base.connected_to`.
+ ([Pull Request](https://github.com/rails/rails/pull/34196))
+
+* Add support for default expressions and expression indexes for MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/34307))
+
+* Add an `index` option for `change_table` migration helpers.
+ ([Pull Request](https://github.com/rails/rails/pull/23593))
+
+* Fix `transaction` reverting for migrations. Previously, commands inside of a `transaction`
+ in a reverted migration ran uninverted. This change fixes that.
+ ([Pull Request](https://github.com/rails/rails/pull/31604))
+
+* Allow `ActiveRecord::Base.configurations=` to be set with a symbolized hash.
+ ([Pull Request](https://github.com/rails/rails/pull/33968))
+
+* Fix the counter cache to only update if the record is actually saved.
+ ([Pull Request](https://github.com/rails/rails/pull/33913))
+
+* Add expression indexes support for the SQLite adapter.
+ ([Pull Request](https://github.com/rails/rails/pull/33874))
+
+* Allow subclasses to redefine autosave callbacks for associated records.
+ ([Pull Request](https://github.com/rails/rails/pull/33378))
+
+* Bump the minimum MySQL version to 5.5.8.
+ ([Pull Request](https://github.com/rails/rails/pull/33853))
+
+* Use the utf8mb4 character set by default in MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/33608))
+
+* Add the ability to filter out sensitive data in `#inspect`
+ ([Pull Request](https://github.com/rails/rails/pull/33756), [Pull Request](https://github.com/rails/rails/pull/34208))
+
+* Change `ActiveRecord::Base.configurations` to return an object instead of a hash.
+ ([Pull Request](https://github.com/rails/rails/pull/33637))
+
+* Add database configuration to disable advisory locks.
+ ([Pull Request](https://github.com/rails/rails/pull/33691))
+
+* Update SQLite3 adapter `alter_table` method to restore foreign keys.
+ ([Pull Request](https://github.com/rails/rails/pull/33585))
+
+* Allow the `:to_table` option of `remove_foreign_key` to be invertible.
+ ([Pull Request](https://github.com/rails/rails/pull/33530))
+
+* Fix default value for mysql time types with specified precision.
+ ([Pull Request](https://github.com/rails/rails/pull/33280))
+
+* Fix the `touch` option to behave consistently with `Persistence#touch` method.
+ ([Pull Request](https://github.com/rails/rails/pull/33107))
+
+* Raise an exception for duplicate column definitions in Migrations.
+ ([Pull Request](https://github.com/rails/rails/pull/33029))
+
+* Bump the minimum SQLite version to 3.8.
+ ([Pull Request](https://github.com/rails/rails/pull/32923))
+
+* Fix parent records to not get saved with duplicate children records.
+ ([Pull Request](https://github.com/rails/rails/pull/32952))
+
+* Ensure `Associations::CollectionAssociation#size` and `Associations::CollectionAssociation#empty?`
+ use loaded association ids if present.
+ ([Pull Request](https://github.com/rails/rails/pull/32617))
+
+* Add support to preload associations of polymorphic associations when not all the records have the requested associations.
+ ([Commit](https://github.com/rails/rails/commit/75ef18c67c29b1b51314b6c8a963cee53394080b))
+
+* Add `touch_all` method to `ActiveRecord::Relation`.
+ ([Pull Request](https://github.com/rails/rails/pull/31513))
+
+* Add `ActiveRecord::Base.base_class?` predicate.
+ ([Pull Request](https://github.com/rails/rails/pull/32417))
+
+* Add custom prefix/suffix options to `ActiveRecord::Store.store_accessor`.
+ ([Pull Request](https://github.com/rails/rails/pull/32306))
+
+* 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.
+ ([Pull Request](https://github.com/rails/rails/pull/31989))
+
+* Add `Relation#pick` as short-hand for single-value plucks.
+ ([Pull Request](https://github.com/rails/rails/pull/31941))
+
Active Storage
--------------
diff --git a/guides/source/engines.md b/guides/source/engines.md
index 0b17137270..5afedaadab 100644
--- a/guides/source/engines.md
+++ b/guides/source/engines.md
@@ -217,8 +217,8 @@ important parts about namespacing, and is discussed later in the
#### `app` Directory
Inside the `app` directory are the standard `assets`, `controllers`, `helpers`,
-`mailers`, `models` and `views` directories that you should be familiar with
-from an application. The `helpers`, `mailers` and `models` directories are
+`jobs`, `mailers`, `models`, and `views` directories that you should be familiar with
+from an application. The `helpers`, `mailers`, and `models` directories are
empty, so they aren't described in this section. We'll look more into models in
a future section, when we're writing the engine.
diff --git a/railties/lib/rails/application/finisher.rb b/railties/lib/rails/application/finisher.rb
index 8d2c13d2a8..1cf44a480c 100644
--- a/railties/lib/rails/application/finisher.rb
+++ b/railties/lib/rails/application/finisher.rb
@@ -24,7 +24,7 @@ module Rails
initializer :let_zeitwerk_take_over do
if config.autoloader == :zeitwerk
require "active_support/dependencies/zeitwerk_integration"
- ActiveSupport::Dependencies::ZeitwerkIntegration.take_over
+ ActiveSupport::Dependencies::ZeitwerkIntegration.take_over(enable_reloading: !config.cache_classes)
end
end
diff --git a/railties/test/application/zeitwerk_integration_test.rb b/railties/test/application/zeitwerk_integration_test.rb
index dc6db429a9..a9da060347 100644
--- a/railties/test/application/zeitwerk_integration_test.rb
+++ b/railties/test/application/zeitwerk_integration_test.rb
@@ -131,6 +131,20 @@ class ZeitwerkIntegrationTest < ActiveSupport::TestCase
assert $zeitwerk_integration_test_post
end
+ test "reloading is enabled if config.cache_classes is false" do
+ boot
+
+ assert Rails.autoloaders.main.reloading_enabled?
+ assert_not Rails.autoloaders.once.reloading_enabled?
+ end
+
+ test "reloading is disabled if config.cache_classes is true" do
+ boot("production")
+
+ assert_not Rails.autoloaders.main.reloading_enabled?
+ assert_not Rails.autoloaders.once.reloading_enabled?
+ end
+
test "eager loading loads code in engines" do
$test_blog_engine_eager_loaded = false