58 KiB
Rails 5.0.0.beta4 (April 27, 2016)
-
PostgreSQL: Support Expression Indexes and Operator Classes.
Example:
create_table :users do |t| t.string :name t.index 'lower(name) varchar_pattern_ops' end
Fixes #19090, #21765, #21819, #24359.
Ryuta Kamizono
-
MySQL: Prepared statements support.
To enable, set
prepared_statements: true
in config/database.yml. Requires mysql2 0.4.4+.Ryuta Kamizono
-
Schema dumper: Indexes are now included in the
create_table
block instead of listed afterward as separateadd_index
lines.This tidies up schema.rb and makes it easy to read as a list of tables.
Bonus: Allows databases that support it (MySQL) to perform as single
CREATE TABLE
query, no additional query per index.Ryuta Kamizono
-
SQLite: Fix uniqueness validation when values exceed the column limit.
SQLite doesn't impose length restrictions on strings, BLOBs, or numeric values. It treats them as helpful metadata. When we truncate strings before checking uniqueness, we'd miss values that exceed the column limit.
Other databases enforce length limits. A large value will pass uniqueness validation since the column limit guarantees no value that long exists. When we insert the row, it'll raise
ActiveRecord::ValueTooLong
as we expect.This fixes edge-case incorrect validation failures for values that exceed the column limit but are identical to an existing value when truncated. Now these will pass validation and raise an exception.
Ryuta Kamizono
-
Raise
ActiveRecord::ValueTooLong
when column limits are exceeded. Supported by MySQL and PostgreSQL adapters.Ryuta Kamizono
-
Migrations:
#foreign_key
respectstable_name_prefix
and_suffix
.Ryuta Kamizono
-
SQLite: Force NOT NULL primary keys.
From SQLite docs: https://www.sqlite.org/lang_createtable.html According to the SQL standard, PRIMARY KEY should always imply NOT NULL. Unfortunately, due to a bug in some early versions, this is not the case in SQLite. Unless the column is an INTEGER PRIMARY KEY or the table is a WITHOUT ROWID table or the column is declared NOT NULL, SQLite allows NULL values in a PRIMARY KEY column. SQLite could be fixed to conform to the standard, but doing so might break legacy applications. Hence, it has been decided to merely document the fact that SQLite allowing NULLs in most PRIMARY KEY columns.
Now we override column options to explicitly set NOT NULL rather than rely on implicit NOT NULL like MySQL and PostgreSQL adapters.
Ryuta Kamizono
-
Added notice when a database is successfully created or dropped.
Example:
$ bin/rails db:create Created database 'blog_development' Created database 'blog_test' $ bin/rails db:drop Dropped database 'blog_development' Dropped database 'blog_test'
Changed older notices
blog_development already exists
toDatabase 'blog_development' already exists
. andCouldn't drop blog_development
toCouldn't drop database 'blog_development'
.bogdanvlviv
-
Database comments. Annotate database objects (tables, columns, indexes) with comments stored in database metadata. PostgreSQL & MySQL support.
create_table :pages, force: :cascade, comment: 'CMS content pages' do |t| t.string :path, comment: 'Path fragment of page URL used for routing' t.string :locale, comment: 'RFC 3066 locale code of website language section' t.index [:path, :locale], comment: 'Look up pages by URI' end
Andrey Novikov
-
Add
quoted_time
for truncating the date part of a TIME column value. This fixes queries on TIME column on MariaDB, as it doesn't ignore the date part of the string when it coerces to time.Ryuta Kamizono
-
Properly accept all valid JSON primitives in the JSON data type.
Fixes #24234
Sean Griffin
-
MariaDB 5.3+ supports microsecond datetime precision.
Jeremy Daer
-
Delegate
empty?
,none?
andone?
. Now they can be invoked as model class methods.Example:
# When no record is found on the table Topic.empty? # => true Topic.none? # => true # When only one record is found on the table Topic.one? # => true
Kenta Shirai
-
The form builder now properly displays values when passing a proc form default to the attributes API.
Fixes #24249.
Sean Griffin
-
The schema cache is now cleared after the
db:migrate
task is run.Closes #24273.
Chris Arcand
-
MySQL: strict mode respects other SQL modes rather than overwriting them. Setting
strict: true
addsSTRICT_ALL_TABLES
tosql_mode
. Settingstrict: false
removesSTRICT_TRANS_TABLES
,STRICT_ALL_TABLES
, andTRADITIONAL
fromsql_mode
.Ryuta Kamizono
-
Execute default_scope defined by abstract class in the context of subclass.
Fixes #23413. Fixes #10658.
Mehmet Emin İNAÇ
-
Fix an issue when preloading associations with extensions. Previously every association with extension methods was transformed into an instance dependent scope. This is no longer the case.
Fixes #23934.
Yves Senn
-
Deprecate
{insert|update|delete}_sql
inDatabaseStatements
. Use the{insert|update|delete}
public methods instead.Ryuta Kamizono
-
Added a configuration option to have active record raise an ArgumentError if the order or limit is ignored in a batch query, rather than logging a warning message.
Scott Ringwelski
-
Honour the order of the joining model in a
has_many :through
association when eager loading.Example:
The below will now follow the order of
by_lines
when eager loadingauthors
.class Article < ActiveRecord::Base has_many :by_lines, -> { order(:position) } has_many :authors, through: :by_lines end
Fixes #17864.
Yasyf Mohamedali, Joel Turkel
-
Ensure that the Suppressor runs before validations.
This moves the suppressor up to be run before validations rather than after validations. There's no reason to validate a record you aren't planning on saving.
Eileen M. Uchitelle
Rails 5.0.0.beta3 (February 24, 2016)
-
Save many-to-many objects based on association primary key.
Fixes #20995.
himesh-r
-
Ensure that mutations of the array returned from
ActiveRecord::Relation#to_a
do not affect the original relation, by returning a duplicate array each time.This brings the behavior in line with
CollectionProxy#to_a
, which was already more careful.Matthew Draper
-
Fixed
where
for polymorphic associations when passed an array containing different types.Fixes #17011.
Example:
PriceEstimate.where(estimate_of: [Treasure.find(1), Car.find(2)]) # => SELECT "price_estimates".* FROM "price_estimates" WHERE (("price_estimates"."estimate_of_type" = 'Treasure' AND "price_estimates"."estimate_of_id" = 1) OR ("price_estimates"."estimate_of_type" = 'Car' AND "price_estimates"."estimate_of_id" = 2))
Philippe Huibonhoa
-
Fix a bug where using
t.foreign_key
twice with the sameto_table
within the same table definition would only create one foreign key.George Millo
-
Fix a regression on has many association, where calling a child from parent in child's callback results in same child records getting added repeatedly to target.
Fixes #13387.
Bogdan Gusiev, Jon Hinson
-
Rework
ActiveRecord::Relation#last
.-
Never perform additional SQL on loaded relation
-
Use SQL reverse order instead of loading relation if relation doesn't have limit
-
Deprecated relation loading when SQL order can not be automatically reversed
Topic.order("title").load.last(3)
before: SELECT ...
after: No SQL
Topic.order("title").last
before: SELECT * FROM
topics
after: SELECT * FROM
topics
ORDER BYtopics
.title
DESC LIMIT 1Topic.order("coalesce(author, title)").last
before: SELECT * FROM
topics
after: Deprecation Warning for irreversible order
Bogdan Gusiev
-
-
Allow
joins
to be unscoped.Fixes #13775.
Takashi Kokubun
-
Add ActiveRecord
#second_to_last
and#third_to_last
methods.Brian Christian
-
Added
numeric
helper into migrations.Example:
create_table(:numeric_types) do |t| t.numeric :numeric_type, precision: 10, scale: 2 end
Mehmet Emin İNAÇ
-
Bumped the minimum supported version of PostgreSQL to >= 9.1. Both PG 9.0 and 8.4 are past their end of life date: http://www.postgresql.org/support/versioning/
Remo Mueller
Rails 5.0.0.beta2 (February 01, 2016)
-
ActiveRecord::Relation#reverse_order
throwsActiveRecord::IrreversibleOrderError
when the order can not be reversed using current trivial algorithm. Also raises the same error when#reverse_order
is called on relation without any order and table has no primary key:Topic.order("concat(author_name, title)").reverse_order # Before: SELECT `topics`.* FROM `topics` ORDER BY concat(author_name DESC, title) DESC # After: raises ActiveRecord::IrreversibleOrderError Edge.all.reverse_order # Before: SELECT `edges`.* FROM `edges` ORDER BY `edges`.`` DESC # After: raises ActiveRecord::IrreversibleOrderError
Bogdan Gusiev
-
Improve schema_migrations insertion performance by inserting all versions in one INSERT SQL.
Akira Matsuda, Naoto Koshikawa
-
Using
references
orbelongs_to
in migrations will always add index for the referenced column by default, without addingindex: true
option to generated migration file. Users can opt out of this by passingindex: false
.Fixes #18146.
Matthew Draper, Prathamesh Sonpatki
-
Run
type
attributes through attributes API type-casting before instantiating the corresponding subclass. This makes it possible to define custom STI mappings.Fixes #21986.
Yves Senn
-
Don't try to quote functions or expressions passed to
:default
option if they are passed as procs.This will generate proper query with the passed function or expression for the default option, instead of trying to quote it in incorrect fashion.
Example:
create_table :posts do |t| t.datetime :published_at, default: -> { 'NOW()' } end
Ryuta Kamizono
-
Fix regression when loading fixture files with symbol keys.
Fixes #22584.
Yves Senn
-
Use
version
column as primary key for schema_migrations table becauseschema_migrations
versions are guaranteed to be unique.This makes it possible to use
update_attributes
on models that do not have a primary key.Richard Schneeman
-
Add short-hand methods for text and blob types in MySQL.
In Pg and Sqlite3,
:text
and:binary
have variable unlimited length. But in MySQL, these have limited length for each types (ref #21591, #21619). This change adds short-hand methods for each text and blob types.Example:
create_table :foos do |t| t.tinyblob :tiny_blob t.mediumblob :medium_blob t.longblob :long_blob t.tinytext :tiny_text t.mediumtext :medium_text t.longtext :long_text end
Ryuta Kamizono
-
Take into account UTC offset when assigning string representation of timestamp with offset specified to attribute of time type.
Andrey Novikov
-
When calling
first
with alimit
argument, return directly from theloaded?
records if available.Ben Woosley
-
Deprecate sending the
offset
argument tofind_nth
. Please use theoffset
method on relation instead.Ben Woosley
Rails 5.0.0.beta1 (December 18, 2015)
-
Limit record touching to once per transaction.
If you have a parent/grand-parent relation like:
Comment belongs_to :message, touch: true Message belongs_to :project, touch: true Project belongs_to :account, touch: true
When the lowest entry(
Comment
) is saved, now, it won't repeat the touch call multiple times for the parent records.Related #18606.
arthurnn
-
Order the result of
find(ids)
to match the passed array, if the relation has no explicit order defined.Fixes #20338.
Miguel Grazziotin, Matthew Draper
-
Omit default limit values in dumped schema. It's tidier, and if the defaults change in the future, we can address that via Migration API Versioning.
Jean Boussier
-
Support passing the schema name as a prefix to table name in
ConnectionAdapters::SchemaStatements#indexes
. Previously the prefix would be considered a full part of the index name, and only the schema in the current search path would be considered.Grey Baker
-
Ignore index name in
index_exists?
andremove_index
when not passed a name to check for.Grey Baker
-
Extract support for the legacy
mysql
database adapter from core. It will live on in a separate gem for now, but most users should just usemysql2
.Abdelkader Boudih
-
ApplicationRecord is a new superclass for all app models, analogous to app controllers subclassing ApplicationController instead of ActionController::Base. This gives apps a single spot to configure app-wide model behavior.
Newly generated applications have
app/models/application_record.rb
present by default.Genadi Samokovarov
-
Version the API presented to migration classes, so we can change parameter defaults without breaking existing migrations, or forcing them to be rewritten through a deprecation cycle.
New migrations specify the Rails version they were written for:
class AddStatusToOrders < ActiveRecord::Migration[5.0] def change # ... end end
Matthew Draper, Ravil Bayramgalin
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Use bind params for
limit
andoffset
. This will generate significantly fewer prepared statements for common tasks like pagination. To support this change, passing a string containing a comma tolimit
has been deprecated, and passing an Arel node tolimit
is no longer supported.Fixes #22250.
Sean Griffin
-
Introduce after_{create,update,delete}_commit callbacks.
Before:
after_commit :add_to_index_later, on: :create after_commit :update_in_index_later, on: :update after_commit :remove_from_index_later, on: :destroy
After:
after_create_commit :add_to_index_later after_update_commit :update_in_index_later after_destroy_commit :remove_from_index_later
Fixes #22515.
Genadi Samokovarov
-
Respect the column default values for
inheritance_column
when instantiating records through the base class.Fixes #17121.
Example:
# The schema of BaseModel has `t.string :type, default: 'SubType'` subtype = BaseModel.new assert_equals SubType, subtype.class
Kuldeep Aggarwal
-
Fix
rake db:structure:dump
on Postgres when multiple schemas are used.Fixes #22346.
Nick Muerdter, ckoenig
-
Add schema dumping support for PostgreSQL geometric data types.
Ryuta Kamizono
-
Except keys of
build_record
's argument fromcreate_scope
ininitialize_attributes
.Fixes #21893.
Yuichiro Kaneko
-
Deprecate
connection.tables
on the SQLite3 and MySQL adapters. Also deprecate passing arguments to#tables
. And deprecatetable_exists?
.The
#tables
method of some adapters (mysql, mysql2, sqlite3) would return both tables and views while others (postgresql) just return tables. To make their behavior consistent,#tables
will return only tables in the future.The
#table_exists?
method would check both tables and views. To make their behavior consistent with#tables
,#table_exists?
will check only tables in the future.Yuichiro Kaneko
-
Improve support for non Active Record objects on
validates_associated
Skipping
marked_for_destruction?
when the associated object does not responds to it make easier to validate virtual associations built on top of Active Model objects and/or serialized objects that implement avalid?
instance method.Kassio Borges, Lucas Mazza
-
Change connection management middleware to return a new response with a body proxy, rather than mutating the original.
Kevin Buchanan
-
Make
db:migrate:status
to render1_some.rb
format migrate files.These files are in
db/migrate
:* 1_valid_people_have_last_names.rb * 20150819202140_irreversible_migration.rb * 20150823202140_add_admin_flag_to_users.rb * 20150823202141_migration_tests.rb * 2_we_need_reminders.rb * 3_innocent_jointable.rb
Before:
$ bundle exec rake db:migrate:status ... Status Migration ID Migration Name -------------------------------------------------- up 001 ********** NO FILE ********** up 002 ********** NO FILE ********** up 003 ********** NO FILE ********** up 20150819202140 Irreversible migration up 20150823202140 Add admin flag to users up 20150823202141 Migration tests
After:
$ bundle exec rake db:migrate:status ... Status Migration ID Migration Name -------------------------------------------------- up 001 Valid people have last names up 002 We need reminders up 003 Innocent jointable up 20150819202140 Irreversible migration up 20150823202140 Add admin flag to users up 20150823202141 Migration tests
Yuichiro Kaneko
-
Define
ActiveRecord::Sanitization.sanitize_sql_for_order
and use it insidepreprocess_order_args
.Yuichiro Kaneko
-
Allow bigint with default nil for avoiding auto increment primary key.
Ryuta Kamizono
-
Remove
DEFAULT_CHARSET
andDEFAULT_COLLATION
inMySQLDatabaseTasks
.We should omit the collation entirely rather than providing a default. Then the choice is the responsibility of the server and MySQL distribution.
Ryuta Kamizono
-
Alias
ActiveRecord::Relation#left_joins
toActiveRecord::Relation#left_outer_joins
.Takashi Kokubun
-
Use advisory locking to raise a
ConcurrentMigrationError
instead of attempting to migrate when another migration is currently running.Sam Davies
-
Added
ActiveRecord::Relation#left_outer_joins
.Example:
User.left_outer_joins(:posts) # => SELECT "users".* FROM "users" LEFT OUTER JOIN "posts" ON "posts"."user_id" = "users"."id"
Florian Thomas
-
Support passing an array to
order
for SQL parameter sanitization.Aaron Suggs
-
Avoid disabling errors on the PostgreSQL connection when enabling the
standard_conforming_strings
setting. Errors were previously disabled because the setting wasn't writable in Postgres 8.1 and didn't exist in earlier versions. Now Rails only supports Postgres 8.2+ we're fine to assume the setting exists. Disabling errors caused problems when using a connection pooling tool like PgBouncer because it's not guaranteed to have the same connection between calls toexecute
and it could leave the connection with errors disabled.Fixes #22101.
Harry Marr
-
Set
scope.reordering_value
totrue
if:reordering
-values are specified.Fixes #21886.
Hiroaki Izu
-
Add support for bidirectional destroy dependencies.
Fixes #13609.
Example:
class Content < ActiveRecord::Base has_one :position, dependent: :destroy end class Position < ActiveRecord::Base belongs_to :content, dependent: :destroy end
Seb Jacobs
-
Includes HABTM returns correct size now. It's caused by the join dependency only instantiates one HABTM object because the join table hasn't a primary key.
Fixes #16032.
Examples:
before: Project.first.salaried_developers.size # => 3 Project.includes(:salaried_developers).first.salaried_developers.size # => 1 after: Project.first.salaried_developers.size # => 3 Project.includes(:salaried_developers).first.salaried_developers.size # => 3
Bigxiang
-
Add option to index errors in nested attributes
For models which have nested attributes, errors within those models will now be indexed if
:index_errors
is specified when defining a has_many relationship, or if its set in the global config.Example:
class Guitar < ActiveRecord::Base has_many :tuning_pegs, index_errors: true accepts_nested_attributes_for :tuning_pegs end class TuningPeg < ActiveRecord::Base belongs_to :guitar validates_numericality_of :pitch end # Old style guitar.errors["tuning_pegs.pitch"] = ["is not a number"] # New style (if defined globally, or set in has_many_relationship) guitar.errors["tuning_pegs[1].pitch"] = ["is not a number"]
Michael Probber, Terence Sun
-
Exit with non-zero status for failed database rake tasks.
Jay Hayes
-
Queries such as
Computer.joins(:monitor).group(:status).count
will now be interpreted asComputer.joins(:monitor).group('computers.status').count
so that whenComputer
andMonitor
have bothstatus
columns we don't have conflicts in projection.Rafael Sales
-
Add ability to default to
uuid
as primary key when generating database migrations.Example:
config.generators do |g| g.orm :active_record, primary_key_type: :uuid end
Jon McCartie
-
Don't cache arguments in
#find_by
if they are anActiveRecord::Relation
.Fixes #20817.
Hiroaki Izu
-
Qualify column name inserted by
group
in calculation.Giving
group
an unqualified column name now works, even if the relation hasJOIN
with another table which also has a column of the name.Soutaro Matsumoto
-
Don't cache prepared statements containing an IN clause or a SQL literal, as these queries will change often and are unlikely to have a cache hit.
Sean Griffin
-
Fix
rewhere
in ahas_many
association.Fixes #21955.
Josh Branchaud, Kal
-
where
raises ArgumentError on unsupported types.Fixes #20473.
Jake Worth
-
Add an immutable string type to help reduce memory usage for apps which do not need mutation detection on strings.
Sean Griffin
-
Give
ActiveRecord::Relation#update
its own deprecation warning when passed anActiveRecord::Base
instance.Fixes #21945.
Ted Johansson
-
Make it possible to pass
:to_table
when adding a foreign key throughadd_reference
.Fixes #21563.
Yves Senn
-
No longer pass deprecated option
-i
topg_dump
.Paul Sadauskas
-
Concurrent
AR::Base#increment!
and#decrement!
on the same record are all reflected in the database rather than overwriting each other.Bogdan Gusiev
-
Avoid leaking the first relation we call
first
on, per model.Fixes #21921.
Matthew Draper, Jean Boussier
-
Remove unused
pk_and_sequence_for
inAbstractMysqlAdapter
.Ryuta Kamizono
-
Allow fixtures files to set the model class in the YAML file itself.
To load the fixtures file
accounts.yml
as theUser
model, use:_fixture: model_class: User david: name: David
Fixes #9516.
Roque Pinel
-
Don't require a database connection to load a class which uses acceptance validations.
Sean Griffin
-
Correctly apply
unscope
when preloading through associations.Jimmy Bourassa
-
Fixed taking precision into count when assigning a value to timestamp attribute.
Timestamp column can have less precision than ruby timestamp In result in how big a fraction of a second can be stored in the database.
m = Model.create! m.created_at.usec == m.reload.created_at.usec # => false # due to different precision in Time.now and database column
If the precision is low enough, (mysql default is 0, so it is always low enough by default) the value changes when model is reloaded from the database. This patch fixes that issue ensuring that any timestamp assigned as an attribute is converted to column precision under the attribute.
Bogdan Gusiev
-
Introduce
connection.data_sources
andconnection.data_source_exists?
. These methods determine what relations can be used to back Active Record models (usually tables and views).Also deprecate
SchemaCache#tables
,SchemaCache#table_exists?
andSchemaCache#clear_table_cache!
in favor of their new data source counterparts.Yves Senn, Matthew Draper
-
Add
ActiveRecord::Base.ignored_columns
to make some columns invisible from Active Record.Jean Boussier
-
ActiveRecord::Tasks::MySQLDatabaseTasks
fails if shellout to mysql commands (likemysqldump
) is not successful.Steve Mitchell
-
Ensure
select
quotes aliased attributes, even when usingfrom
.Fixes #21488.
Sean Griffin, @johanlunds
-
MySQL: support
unsigned
numeric data types.Example:
create_table :foos do |t| t.unsigned_integer :quantity t.unsigned_bigint :total t.unsigned_float :percentage t.unsigned_decimal :price, precision: 10, scale: 2 end
The
unsigned: true
option may be used for the primary key:create_table :foos, id: :bigint, unsigned: true do |t| … end
Ryuta Kamizono
-
Add
#views
and#view_exists?
methods on connection adapters.Ryuta Kamizono
-
Correctly dump composite primary key.
Example:
create_table :barcodes, primary_key: ["region", "code"] do |t| t.string :region t.integer :code end
Ryuta Kamizono
-
Lookup the attribute name for
restrict_with_error
messages on the model class that defines the association.kuboon, Ronak Jangir
-
Correct query for PostgreSQL 8.2 compatibility.
Ben Murphy, Matthew Draper
-
bin/rails db:migrate
usesActiveRecord::Tasks::DatabaseTasks.migrations_paths
instead ofMigrator.migrations_paths
.Tobias Bielohlawek
-
Support dropping indexes concurrently in PostgreSQL.
See http://www.postgresql.org/docs/9.4/static/sql-dropindex.html for more details.
Grey Baker
-
Deprecate passing conditions to
ActiveRecord::Relation#delete_all
andActiveRecord::Relation#destroy_all
.Wojciech Wnętrzak
-
Instantiating an AR model with
ActionController::Parameters
now raises anActiveModel::ForbiddenAttributesError
if the parameters include atype
field that has not been explicitly permitted. Previously, thetype
field was simply ignored in the same situation.Prem Sichanugrist
-
PostgreSQL,
create_schema
,drop_schema
andrename_table
now quote schema names.Fixes #21418.
Example:
create_schema("my.schema") # CREATE SCHEMA "my.schema";
Yves Senn
-
PostgreSQL, add
:if_exists
option to#drop_schema
. This makes it possible to drop a schema that might exist without raising an exception if it doesn't.Yves Senn
-
Only try to nullify has_one target association if the record is persisted.
Fixes #21223.
Agis Anastasopoulos
-
Uniqueness validator raises descriptive error when running on a persisted record without primary key.
Fixes #21304.
Yves Senn
-
Add a native JSON data type support in MySQL.
Example:
create_table :json_data_type do |t| t.json :settings end
Ryuta Kamizono
-
Descriptive error message when fixtures contain a missing column.
Fixes #21201.
Yves Senn
-
ActiveRecord::Tasks::PostgreSQLDatabaseTasks
fail if shellout to postgresql commands (likepg_dump
) is not successful.Bryan Paxton, Nate Berkopec
-
Add
ActiveRecord::Relation#in_batches
to work with records and relations in batches.Available options are
of
(batch size),load
,start
, andfinish
.Examples:
Person.in_batches.each_record(&:party_all_night!) Person.in_batches.update_all(awesome: true) Person.in_batches.delete_all Person.in_batches.each do |relation| relation.delete_all sleep 10 # Throttles the delete queries end
Fixes #20933.
Sina Siadat
-
Added methods for PostgreSQL geometric data types to use in migrations.
Example:
create_table :foo do |t| t.line :foo_line t.lseg :foo_lseg t.box :foo_box t.path :foo_path t.polygon :foo_polygon t.circle :foo_circle end
Mehmet Emin İNAÇ
-
Add
cache_key
to ActiveRecord::Relation.Example:
@users = User.where("name like ?", "%Alberto%") @users.cache_key # => "/users/query-5942b155a43b139f2471b872ac54251f-3-20150714212107656125000"
Alberto Fernández-Capel
-
Properly allow uniqueness validations on primary keys.
Fixes #20966.
Sean Griffin, presskey
-
Don't raise an error if an association failed to destroy when
destroy
was called on the parent (as opposed todestroy!
).Fixes #20991.
Sean Griffin
-
ActiveRecord::RecordNotFound
modified to store model name, primary_key and id of the caller model. It allows the catcher of this exception to make a better decision to what to do with it.Example:
class SomeAbstractController < ActionController::Base rescue_from ActiveRecord::RecordNotFound, with: :redirect_to_404 private def redirect_to_404(e) return redirect_to(posts_url) if e.model == 'Post' raise end end
Sameer Rahmani
-
Deprecate the keys for association
restrict_dependent_destroy
errors in favor of new key names.Previously
has_one
andhas_many
associations were using theone
andmany
keys respectively. Both of these keys have special meaning in I18n (they are considered to be pluralizations) so by renaming them tohas_one
andhas_many
we make the messages more explicit and most importantly they don't clash with linguistical systems that need to validate translation keys (and their pluralizations).The
:'restrict_dependent_destroy.one'
key should be replaced with:'restrict_dependent_destroy.has_one'
, and:'restrict_dependent_destroy.many'
with:'restrict_dependent_destroy.has_many'
.Roque Pinel, Christopher Dell
-
Fix state being carried over from previous transaction.
Considering the following example where
name
is a required attribute. Before we hadnew_record?
returningtrue
for a persisted record:author = Author.create! name: 'foo' author.name = nil author.save # => false author.new_record? # => true
Fixes #20824.
Roque Pinel
-
Correctly ignore
mark_for_destruction
whenautosave
isn't set totrue
when validating associations.Fixes #20882.
Sean Griffin
-
Fix a bug where counter_cache doesn't always work with polymorphic relations.
Fixes #16407.
Stefan Kanev, Sean Griffin
-
Ensure that cyclic associations with autosave don't cause duplicate errors to be added to the parent record.
Fixes #20874.
Sean Griffin
-
Ensure that
ActionController::Parameters
can still be passed to nested attributes.Fixes #20922.
Sean Griffin
-
Deprecate force association reload by passing a truthy argument to association method.
For collection association, you can call
#reload
on association proxy to force a reload:@user.posts.reload # Instead of @user.posts(true)
For singular association, you can call
#reload
on the parent object to clear its association cache then call the association method:@user.reload.profile # Instead of @user.profile(true)
Passing a truthy argument to force association to reload will be removed in Rails 5.1.
Prem Sichanugrist
-
Replaced
ActiveSupport::Concurrency::Latch
withConcurrent::CountDownLatch
from the concurrent-ruby gem.Jerry D'Antonio
-
Fix through associations using scopes having the scope merged multiple times.
Fixes #20721. Fixes #20727.
Sean Griffin
-
ActiveRecord::Base.dump_schema_after_migration
applies migration tasks other thandb:migrate
. (eg.db:rollback
,db:migrate:dup
, ...)Fixes #20743.
Yves Senn
-
Add alternate syntax to make
change_column_default
reversible.User can pass in
:from
and:to
to makechange_column_default
command become reversible.Example:
change_column_default :posts, :status, from: nil, to: "draft" change_column_default :users, :authorized, from: true, to: false
Prem Sichanugrist
-
Prevent error when using
force_reload: true
on an unassigned polymorphic belongs_to association.Fixes #20426.
James Dabbs
-
Correctly raise
ActiveRecord::AssociationTypeMismatch
when assigning a wrong type to a namespaced association.Fixes #20545.
Diego Carrion
-
validates_absence_of
respectsmarked_for_destruction?
.Fixes #20449.
Yves Senn
-
Include the
Enumerable
module inActiveRecord::Relation
Sean Griffin, bogdan
-
Use
Enumerable#sum
inActiveRecord::Relation
if a block is given.Sean Griffin
-
Let
WITH
queries (Common Table Expressions) be explainable.Vladimir Kochnev
-
Make
remove_index :table, :column
reversible.Yves Senn
-
Fixed an error which would occur in dirty checking when calling
update_attributes
from a getter.Fixes #20531.
Sean Griffin
-
Make
remove_foreign_key
reversible. Any foreign key options must be specified, similar toremove_column
.Aster Ryan
-
Add
:_prefix
and:_suffix
options toenum
definition.Fixes #17511, #17415.
Igor Kapkov
-
Correctly handle decimal arrays with defaults in the schema dumper.
Fixes #20515.
Sean Griffin, jmondo
-
Deprecate the PostgreSQL
:point
type in favor of a new one which will returnPoint
objects instead of anArray
Sean Griffin
-
Ensure symbols passed to
ActiveRecord::Relation#select
are always treated as columns.Fixes #20360.
Sean Griffin
-
Do not set
sql_mode
ifstrict: :default
is specified.# config/database.yml production: adapter: mysql2 database: foo_prod user: foo strict: :default
Ryuta Kamizono
-
Allow proc defaults to be passed to the attributes API. See documentation for examples.
Sean Griffin, Kir Shatrov
-
SQLite:
:collation
support for string and text columns.Example:
create_table :foo do |t| t.string :string_nocase, collation: 'NOCASE' t.text :text_rtrim, collation: 'RTRIM' end add_column :foo, :title, :string, collation: 'RTRIM' change_column :foo, :title, :string, collation: 'NOCASE'
Akshay Vishnoi
-
Allow the use of symbols or strings to specify enum values in test fixtures:
awdr: title: "Agile Web Development with Rails" status: :proposed
George Claghorn
-
Clear query cache when
ActiveRecord::Base#reload
is called.Shane Hender, Pierre Nespo
-
Include stored procedures and function on the MySQL structure dump.
Jonathan Worek
-
Pass
:extend
option forhas_and_belongs_to_many
associations to the underlyinghas_many :through
.Jaehyun Shin
-
Deprecate
Relation#uniq
useRelation#distinct
instead.See #9683.
Yves Senn
-
Allow single table inheritance instantiation to work when storing demodulized class names.
Alex Robbin
-
Correctly pass MySQL options when using
structure_dump
orstructure_load
.Specifically, it fixes an issue when using SSL authentication.
Alex Coomans
-
Correctly dump
:options
oncreate_table
for MySQL.Ryuta Kamizono
-
PostgreSQL:
:collation
support for string and text columns.Example:
create_table :foos do |t| t.string :string_en, collation: 'en_US.UTF-8' t.text :text_ja, collation: 'ja_JP.UTF-8' end
Ryuta Kamizono
-
Remove
ActiveRecord::Serialization::XmlSerializer
from core.Zachary Scott
-
Make
unscope
aware of "less than" and "greater than" conditions.TAKAHASHI Kazuaki
-
find_by
andfind_by!
raiseArgumentError
when called without arguments.Kohei Suzuki
-
Revert behavior of
db:schema:load
back to loading the full environment. This ensures that initializers are run.Fixes #19545.
Yves Senn
-
Fix missing index when using
timestamps
with theindex
option.The
index
option used withtimestamps
should be passed to bothcolumn
definitions forcreated_at
andupdated_at
rather than just the first.Paul Mucur
-
Rename
:class
to:anonymous_class
in association options.Fixes #19659.
Andrew White
-
Autosave existing records on a has many through association when the parent is new.
Fixes #19782.
Sean Griffin
-
Fixed a bug where uniqueness validations would error on out of range values, even if an validation should have prevented it from hitting the database.
Andrey Voronkov
-
MySQL:
:charset
and:collation
support for string and text columns.Example:
create_table :foos do |t| t.string :string_utf8_bin, charset: 'utf8', collation: 'utf8_bin' t.text :text_ascii, charset: 'ascii' end
Ryuta Kamizono
-
Foreign key related methods in the migration DSL respect
ActiveRecord::Base.pluralize_table_names = false
.Fixes #19643.
Mehmet Emin İNAÇ
-
Reduce memory usage from loading types on PostgreSQL.
Fixes #19578.
Sean Griffin
-
Add
config.active_record.warn_on_records_fetched_greater_than
option.When set to an integer, a warning will be logged whenever a result set larger than the specified size is returned by a query.
Fixes #16463.
Jason Nochlin
-
Ignore
.psqlrc
when loading database structure.Jason Weathered
-
Fix referencing wrong table aliases while joining tables of has many through association (only when calling calculation methods).
Fixes #19276.
pinglamb
-
Correctly persist a serialized attribute that has been returned to its default value by an in-place modification.
Fixes #19467.
Matthew Draper
-
Fix generating the schema file when using PostgreSQL
BigInt[]
data type. Previously thelimit: 8
was not coming through, and this caused it to becomeInt[]
data type after rebuilding from the schema.Fixes #19420.
Jake Waller
-
Reuse the
CollectionAssociation#reader
cache when the foreign key is available prior to save.Ben Woosley
-
Add
config.active_record.dump_schemas
to fixdb:structure:dump
when using schema_search_path and PostgreSQL extensions.Fixes #17157.
Ryan Wallace
-
Renaming
use_transactional_fixtures
touse_transactional_tests
for clarity.Fixes #18864.
Brandon Weiss
-
Increase pg gem version requirement to
~> 0.18
. Earlier versions of the pg gem are known to have problems with Ruby 2.2.Matt Brictson
-
Correctly dump
serial
andbigserial
.Ryuta Kamizono
-
Fix default
format
value inActiveRecord::Tasks::DatabaseTasks#schema_file
.James Cox
-
Don't enroll records in the transaction if they don't have commit callbacks. This was causing a memory leak when creating many records inside a transaction.
Fixes #15549.
Will Bryant, Aaron Patterson
-
Correctly create through records when created on a has many through association when using
where
.Fixes #19073.
Sean Griffin
-
Add
SchemaMigration.create_table
support for any unicode charsets with MySQL.Ryuta Kamizono
-
PostgreSQL no longer disables user triggers if system triggers can't be disabled. Disabling user triggers does not fulfill what the method promises. Rails currently requires superuser privileges for this method.
If you absolutely rely on this behavior, consider patching
disable_referential_integrity
.Yves Senn
-
Restore aborted transaction state when
disable_referential_integrity
fails due to missing permissions.Toby Ovod-Everett, Yves Senn
-
In PostgreSQL, print a warning message if
disable_referential_integrity
fails due to missing permissions.Andrey Nering, Yves Senn
-
Allow a
:limit
option for MySQL bigint primary key support.Example:
create_table :foos, id: :primary_key, limit: 8 do |t| end # or create_table :foos, id: false do |t| t.primary_key :id, limit: 8 end
Ryuta Kamizono
-
belongs_to
will now trigger a validation error by default if the association is not present. You can turn this off on a per-association basis withoptional: true
. (Note this new default only applies to new Rails apps that will be generated withconfig.active_record.belongs_to_required_by_default = true
in initializer.)Josef Šimánek
-
Fixed
ActiveRecord::Relation#becomes!
andchanged_attributes
issues for type columns.Fixes #17139.
Miklos Fazekas
-
Format the time string according to the precision of the time column.
Ryuta Kamizono
-
Allow a
:precision
option for time type columns.Ryuta Kamizono
-
Add
ActiveRecord::Base.suppress
to prevent the receiver from being saved during the given block.For example, here's a pattern of creating notifications when new comments are posted. (The notification may in turn trigger an email, a push notification, or just appear in the UI somewhere):
class Comment < ActiveRecord::Base belongs_to :commentable, polymorphic: true after_create -> { Notification.create! comment: self, recipients: commentable.recipients } end
That's what you want the bulk of the time. A new comment creates a new Notification. There may be edge cases where you don't want that, like when copying a commentable and its comments, in which case write a concern with something like this:
module Copyable def copy_to(destination) Notification.suppress do # Copy logic that creates new comments that we do not want triggering # notifications. end end end
Michael Ryan
-
:time
option added for#touch
.Fixes #18905.
Hyonjee Joo
-
Add
foreign_key_exists?
method.Tõnis Simo
-
Use SQL COUNT and LIMIT 1 queries for
none?
andone?
methods if no block or limit is given, instead of loading the entire collection into memory. This applies to relations (e.g.User.all
) as well as associations (e.g.account.users
)# Before: users.none? # SELECT "users".* FROM "users" users.one? # SELECT "users".* FROM "users" # After: users.none? # SELECT 1 AS one FROM "users" LIMIT 1 users.one? # SELECT COUNT(*) FROM "users"
Eugene Gilburg
-
Have
enum
perform type casting consistently with the rest of Active Record, such aswhere
.Sean Griffin
-
scoping
no longer pollutes the current scope of sibling classes when using STI.Fixes #18806.
Example:
StiOne.none.scoping do StiTwo.all end
Sean Griffin
-
remove_reference
withforeign_key: true
removes the foreign key before removing the column. This fixes a bug where it was not possible to remove the column on MySQL.Fixes #18664.
Yves Senn
-
find_in_batches
now accepts an:finish
parameter that complements the:start
parameter to specify where to stop batch processing.Vipul A M
-
Fix a rounding problem for PostgreSQL timestamp columns.
If a timestamp column has a precision specified, it needs to format according to that.
Ryuta Kamizono
-
Respect the database default charset for
schema_migrations
table.The charset of
version
column inschema_migrations
table depends on the database default charset and collation rather than the encoding of the connection.Ryuta Kamizono
-
Raise
ArgumentError
when passingnil
orfalse
toRelation#merge
.These are not valid values to merge in a relation, so it should warn users early.
Rafael Mendonça França
-
Use
SCHEMA
instead ofDB_STRUCTURE
for specifying a structure file.This makes the
db:structure
tasks consistent withtest:load_structure
.Dieter Komendera
-
Respect custom primary keys for associations when calling
Relation#where
Fixes #18813.
Sean Griffin
-
Fix several edge cases which could result in a counter cache updating twice or not updating at all for
has_many
andhas_many :through
.Fixes #10865.
Sean Griffin
-
Foreign keys added by migrations were given random, generated names. This meant a different
structure.sql
would be generated every time a developer ran migrations on their machine.The generated part of foreign key names is now a hash of the table name and column name, which is consistent every time you run the migration.
Chris Sinjakli
-
Fix n+1 query problem when eager loading nil associations (fixes #18312)
Sammy Larbi
-
Change the default error message from
can't be blank
tomust exist
for the presence validator of the:required
option onbelongs_to
/has_one
associations.Henrik Nygren
-
Fixed
ActiveRecord::Relation#group
method when an argument is an SQL reserved keyword:Example:
SplitTest.group(:key).count Property.group(:value).count
Bogdan Gusiev
-
Added the
#or
method onActiveRecord::Relation
, allowing use of the OR operator to combine WHERE or HAVING clauses.Example:
Post.where('id = 1').or(Post.where('id = 2')) # => SELECT * FROM posts WHERE (id = 1) OR (id = 2)
Sean Griffin, Matthew Draper, Gael Muller, Olivier El Mekki
-
Don't define autosave association callbacks twice from
accepts_nested_attributes_for
.Fixes #18704.
Sean Griffin
-
Integer types will no longer raise a
RangeError
when assigning an attribute, but will instead raise when going to the database.Fixes several vague issues which were never reported directly. See the commit message from the commit which added this line for some examples.
Sean Griffin
-
Values which would error while being sent to the database (such as an ASCII-8BIT string with invalid UTF-8 bytes on SQLite3), no longer error on assignment. They will still error when sent to the database, but you are given the ability to re-assign it to a valid value.
Fixes #18580.
Sean Griffin
-
Don't remove join dependencies in
Relation#exists?
Fixes #18632.
Sean Griffin
-
Invalid values assigned to a JSON column are assumed to be
nil
.Fixes #18629.
Sean Griffin
-
Add
ActiveRecord::Base#accessed_fields
, which can be used to quickly discover which fields were read from a model when you are looking to only select the data you need from the database.Sean Griffin
-
Introduce the
:if_exists
option fordrop_table
.Example:
drop_table(:posts, if_exists: true)
That would execute:
DROP TABLE IF EXISTS posts
If the table doesn't exist,
if_exists: false
(the default) raises an exception whereasif_exists: true
does nothing.Cody Cutrer, Stefan Kanev, Ryuta Kamizono
-
Don't run SQL if attribute value is not changed for update_attribute method.
Prathamesh Sonpatki
-
time
columns can now get affected bytime_zone_aware_attributes
. If you have setconfig.time_zone
to a value other than'UTC'
, they will be treated as in that time zone by default in Rails 5.1. If this is not the desired behavior, you can setActiveRecord::Base.time_zone_aware_types = [:datetime]
A deprecation warning will be emitted if you have a
:time
column, and have not explicitly opted out.Fixes #3145.
Sean Griffin
-
Tests now run after_commit callbacks. You no longer have to declare
uses_transaction ‘test name’
to test the results of an after_commit.after_commit callbacks run after committing a transaction whose parent is not
joinable?
: un-nested transactions, transactions within test cases, and transactions inconsole --sandbox
.arthurnn, Ravil Bayramgalin, Matthew Draper
-
nil
as a value for a binary column in a query no longer logs as "", and instead logs as just "nil".Sean Griffin
-
attribute_will_change!
will no longer cause non-persistable attributes to be sent to the database.Fixes #18407.
Sean Griffin
-
Remove support for the
protected_attributes
gem.Carlos Antonio da Silva, Roberto Miranda
-
Fix accessing of fixtures having non-string labels like Fixnum.
Prathamesh Sonpatki
-
Remove deprecated support to preload instance-dependent associations.
Yves Senn
-
Remove deprecated support for PostgreSQL ranges with exclusive lower bounds.
Yves Senn
-
Remove deprecation when modifying a relation with cached Arel. This raises an
ImmutableRelation
error instead.Yves Senn
-
Added
ActiveRecord::SecureToken
in order to encapsulate generation of unique tokens for attributes in a model usingSecureRandom
.Roberto Miranda
-
Change the behavior of boolean columns to be closer to Ruby's semantics.
Before this change we had a small set of "truthy", and all others are "falsy".
Now, we have a small set of "falsy" values and all others are "truthy" matching Ruby's semantics.
Rafael Mendonça França
-
Deprecate
ActiveRecord::Base.errors_in_transactional_callbacks=
.Rafael Mendonça França
-
Change transaction callbacks to not swallow errors.
Before this change any errors raised inside a transaction callback were getting rescued and printed in the logs.
Now these errors are not rescued anymore and just bubble up, as the other callbacks.
Rafael Mendonça França
-
Remove deprecated
sanitize_sql_hash_for_conditions
.Rafael Mendonça França
-
Remove deprecated
Reflection#source_macro
.Rafael Mendonça França
-
Remove deprecated
symbolized_base_class
andsymbolized_sti_name
.Rafael Mendonça França
-
Remove deprecated
ActiveRecord::Base.disable_implicit_join_references=
.Rafael Mendonça França
-
Remove deprecated access to connection specification using a string accessor.
Now all strings will be handled as a URL.
Rafael Mendonça França
-
Change the default
null
value fortimestamps
tofalse
.Rafael Mendonça França
-
Return an array of pools from
connection_pools
.Rafael Mendonça França
-
Return a null column from
column_for_attribute
when no column exists.Rafael Mendonça França
-
Remove deprecated
serialized_attributes
.Rafael Mendonça França
-
Remove deprecated automatic counter caches on
has_many :through
.Rafael Mendonça França
-
Change the way in which callback chains can be halted.
The preferred method to halt a callback chain from now on is to explicitly
throw(:abort)
. In the past, returningfalse
in an Active Recordbefore_
callback had the side effect of halting the callback chain. This is not recommended anymore and, depending on the value of theActiveSupport.halt_callback_chains_on_return_false
option, will either not work at all or display a deprecation warning.claudiob
-
Clear query cache on rollback.
Florian Weingarten
-
Fix setting of foreign_key for through associations when building a new record.
Fixes #12698.
Ivan Antropov
-
Improve dumping of the primary key. If it is not a default primary key, correctly dump the type and options.
Fixes #14169, #16599.
Ryuta Kamizono
-
Format the datetime string according to the precision of the datetime field.
Incompatible to rounding behavior between MySQL 5.6 and earlier.
In 5.5, when you insert
2014-08-17 12:30:00.999999
the fractional part is ignored. In 5.6, it's rounded to2014-08-17 12:30:01
:http://bugs.mysql.com/bug.php?id=68760
Ryuta Kamizono
-
Allow a precision option for MySQL datetimes.
Ryuta Kamizono
-
Fixed automatic
inverse_of
for models nested in a module.Andrew McCloud
-
Change
ActiveRecord::Relation#update
behavior so that it can be called without passing ids of the records to be updated.This change allows updating multiple records returned by
ActiveRecord::Relation
with callbacks and validations.# Before # ArgumentError: wrong number of arguments (1 for 2) Comment.where(group: 'expert').update(body: "Group of Rails Experts") # After # Comments with group expert updated with body "Group of Rails Experts" Comment.where(group: 'expert').update(body: "Group of Rails Experts")
Prathamesh Sonpatki
-
Fix
reaping_frequency
option when the value is a string.This usually happens when it is configured using
DATABASE_URL
.korbin
-
Fix error message when trying to create an associated record and the foreign key is missing.
Before this fix the following exception was being raised:
NoMethodError: undefined method `val' for #<Arel::Nodes::BindParam:0x007fc64d19c218>
Now the message is:
ActiveRecord::UnknownAttributeError: unknown attribute 'foreign_key' for Model.
Rafael Mendonça França
-
Fix change detection problem for PostgreSQL bytea type and
ArgumentError: string contains null byte
exception with pg-0.18.Fixes #17680.
Lars Kanis
-
When a table has a composite primary key, the
primary_key
method for SQLite3 and PostgreSQL adapters was only returning the first field of the key. Ensures that it will return nil instead, as Active Record doesn't support composite primary keys.Fixes #18070.
arthurnn
-
validates_size_of
/validates_length_of
do not count records which aremarked_for_destruction?
.Fixes #7247.
Yves Senn
-
Ensure
first!
and friends work on loaded associations.Fixes #18237.
Sean Griffin
-
eager_load
preserves readonly flag for associations.Fixes #15853.
Takashi Kokubun
-
Provide
:touch
option tosave()
to accommodate saving without updating timestamps.Fixes #18202.
Dan Olson
-
Provide a more helpful error message when an unsupported class is passed to
serialize
.Fixes #18224.
Sean Griffin
-
Add bigint primary key support for MySQL.
Example:
create_table :foos, id: :bigint do |t| end
Ryuta Kamizono
-
Support for any type of primary key.
Fixes #14194.
Ryuta Kamizono
-
Dump the default
nil
for PostgreSQL UUID primary key.Ryuta Kamizono
-
Add a
:foreign_key
option toreferences
and associated migration methods. The model and migration generators now use this option, rather than theadd_foreign_key
form.Sean Griffin
-
Don't raise when writing an attribute with an out-of-range datetime passed by the user.
Grey Baker
-
Replace deprecated
ActiveRecord::Tasks::DatabaseTasks#load_schema
withActiveRecord::Tasks::DatabaseTasks#load_schema_for
.Yves Senn
-
Fix bug with
ActiveRecord::Type::Numeric
that caused negative values to be marked as having changed when set to the same negative value.Fixes #18161.
Daniel Fox
-
Introduce
force: :cascade
option forcreate_table
. Using this option will recreate tables even if they have dependent objects (like foreign keys).db/schema.rb
now usesforce: :cascade
. This makes it possible to reload the schema when foreign keys are in place.Matthew Draper, Yves Senn
-
db:schema:load
anddb:structure:load
no longer purge the database before loading the schema. This is left for the user to do.db:test:prepare
will still purge the database.Fixes #17945.
Yves Senn
-
Fix undesirable RangeError by
Type::Integer
. AddType::UnsignedInteger
.Ryuta Kamizono
-
Add
foreign_type
option tohas_one
andhas_many
association macros.This option enables to define the column name of associated object's type for polymorphic associations.
Ulisses Almeida, Kassio Borges
-
Remove deprecated behavior allowing nested arrays to be passed as query values.
Melanie Gilman
-
Deprecate passing a class as a value in a query. Users should pass strings instead.
Melanie Gilman
-
add_timestamps
andremove_timestamps
now properly reversible with options.Noam Gagliardi-Rabinovich
-
ActiveRecord::ConnectionAdapters::ColumnDumper#column_spec
andActiveRecord::ConnectionAdapters::ColumnDumper#prepare_column_options
no longer have atypes
argument. They should accessconnection#native_database_types
directly.Yves Senn
Please check 4-2-stable for previous changes.