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* Polymorphic has_one touch: Reset association cache result after create ↵Kasper Timm Hansen2019-07-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | transaction In case of a polymorphic association there's no automatic inverse_of to assign the inverse record. So to get the record there needs to be a query executed, however, if the query fires within the transaction that's trying to create the associated record, no record can be found. And worse, the nil result is cached on the association so after the transaction commits the record can't be found. That's what happens if touch is enabled on a polymorphic has_one association. Consider a Comment with a commentable association that needs to be touched. For `Comment.create(commentable: Post.new)`, the existing code essentially does `commentable.send(:comment)` within the create transaction for the comment and thus not finding the comment. Now we're purposefully clearing the cache in case we've tried accessing the association within the transaction and found no object. Before: ``` kaspth-imac 2.6.3 ~/code/rails/activerecord master *= ARCONN=postgresql bin/test test/cases/associations/has_one_associations_test.rb -n /commit/ Using postgresql Run options: -n /commit/ --seed 46022 D, [2019-07-19T03:30:37.864537 #96022] DEBUG -- : Chef Load (0.2ms) SELECT "chefs".* FROM "chefs" WHERE "chefs"."employable_id" = $1 AND "chefs"."employable_type" = $2 LIMIT $3 [["employable_id", 1], ["employable_type", "DrinkDesignerWithPolymorphicTouchChef"], ["LIMIT", 1]] D, [2019-07-19T03:30:37.865013 #96022] DEBUG -- : Chef Create (0.2ms) INSERT INTO "chefs" ("employable_id", "employable_type") VALUES ($1, $2) RETURNING "id" [["employable_id", 1], ["employable_type", "DrinkDesignerWithPolymorphicTouchChef"]] D, [2019-07-19T03:30:37.865201 #96022] DEBUG -- : TRANSACTION (0.1ms) RELEASE SAVEPOINT active_record_1 D, [2019-07-19T03:30:37.874136 #96022] DEBUG -- : TRANSACTION (0.1ms) ROLLBACK D, [2019-07-19T03:30:37.874323 #96022] DEBUG -- : TRANSACTION (0.1ms) ROLLBACK F Failure: HasOneAssociationsTest#test_polymorphic_has_one_with_touch_option_on_create_wont_cache_assocation_so_fetching_after_transaction_commit_works [/Users/kaspth/code/rails/activerecord/test/cases/associations/has_one_associations_test.rb:716]: --- expected +++ actual @@ -1 +1 @@ -#<Chef id: 1, employable_id: 1, employable_type: "DrinkDesignerWithPolymorphicTouchChef", department_id: nil, employable_list_type: nil, employable_list_id: nil> +nil ``` After: ``` kaspth-imac 2.6.3 ~/code/rails/activerecord master *= ARCONN=postgresql bin/test test/cases/associations/has_one_associations_test.rb -n /commit/ Using postgresql Run options: -n /commit/ --seed 46022 D, [2019-07-19T03:30:22.479387 #95973] DEBUG -- : Chef Create (0.3ms) INSERT INTO "chefs" ("employable_id", "employable_type") VALUES ($1, $2) RETURNING "id" [["employable_id", 1], ["employable_type", "DrinkDesignerWithPolymorphicTouchChef"]] D, [2019-07-19T03:30:22.479574 #95973] DEBUG -- : TRANSACTION (0.1ms) RELEASE SAVEPOINT active_record_1 D, [2019-07-19T03:30:22.482051 #95973] DEBUG -- : Chef Load (0.1ms) SELECT "chefs".* FROM "chefs" WHERE "chefs"."employable_id" = $1 AND "chefs"."employable_type" = $2 LIMIT $3 [["employable_id", 1], ["employable_type", "DrinkDesignerWithPolymorphicTouchChef"], ["LIMIT", 1]] D, [2019-07-19T03:30:22.482317 #95973] DEBUG -- : TRANSACTION (0.1ms) ROLLBACK D, [2019-07-19T03:30:22.482437 #95973] DEBUG -- : TRANSACTION (0.1ms) ROLLBACK . Finished in 0.088498s, 11.2997 runs/s, 22.5994 assertions/s. 1 runs, 2 assertions, 0 failures, 0 errors, 0 skips ``` Notice the select now fires after the commit.
* Don't validate non dirty association targetsWill Jessop2019-07-151-0/+8
| | | | | | | | | | | | | | | | | Fixes #36581. This fixes an issue where validations would return differently when a previously saved invalid association was loaded between calls: assert_equal true, squeak.valid? assert_equal true, squeak.mouse.present? assert_equal true, squeak.valid? Here the second assert would return Expected: true Actual: false Limiting validations to associations that would be normally saved (using autosave: true) due to changes means that loading invalid associated relations will not change the return value of the parent relations's `valid?` method.
* MySQL: Fix schema dumping `enum` and `set` columns correctlyRyuta Kamizono2019-07-051-4/+0
| | | | | | | | | `enum` and `set` are typed cast as `:string`, but currently the `:string` type is incorrectly reused for schema dumping. A cast type on columns is not always the same with `sql_type`, this fixes schema dumping `enum` and `set` columns to use `sql_type` instead of `type` correctly.
* Address to "DEPRECATION WARNING: Uniqueness validator will no longer enforce ↵Ryuta Kamizono2019-06-281-1/+1
| | | | | | case sensitive comparison in Rails 6.1" Caused by #36210.
* PostgreSQL: Fix GROUP BY with ORDER BY virtual count attributeRyuta Kamizono2019-06-171-0/+1
| | | | | | | | | | | | | GROUP BY with virtual count attribute is invalid for almost all databases, but it is valid for PostgreSQL, and it had worked until Rails 5.2.2, so it is a regression for Rails 5.2.3 (caused by 311f001). I can't find perfectly solution for fixing this for now, but I would not like to break existing apps, so I decided to allow referencing virtual count attribute in ORDER BY clause when GROUP BY aggrigation (it partly revert the effect of 311f001) to fix the regression #36022. Fixes #36022.
* Adds touch option to has_one associationAbhay Nikam2019-04-251-0/+2
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* Merge pull request #28155 from lcreid/belongs_toRyuta Kamizono2019-04-101-0/+18
|\ | | | | | | Fix "autosave: true" on belongs_to of join model causes invalid records to be saved
| * Fix circular `autosave: true`Larry Reid2018-07-231-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a variable local to the `save_collection_association` method in `activerecord/lib/active_record/autosave_association.rb`, instead of an instance variable. Prior to this PR, when there was a circular series of `autosave: true` associations, the callback for a `has_many` association was run while another instance of the same callback on the same association hadn't finished running. When control returned to the first instance of the callback, the instance variable had changed, and subsequent associated records weren't saved correctly. Specifically, the ID field for the `belongs_to` corresponding to the `has_many` was `nil`. Remove unnecessary test and comments. Fixes #28080.
* | Fix GROUP BY with calculate longer name field to respect `table_alias_length`Ryuta Kamizono2019-04-081-0/+1
| | | | | | | | Follow up of c9e4c848eeeb8999b778fa1ae52185ca5537fffe.
* | Add insert_all to ActiveRecord models (#35077)Bob Lail2019-03-051-0/+4
| | | | | | | | | | Adds a method to ActiveRecord allowing records to be inserted in bulk without instantiating ActiveRecord models. This method supports options for handling uniqueness violations by skipping duplicate records or overwriting them in an UPSERT operation. ActiveRecord already supports bulk-update and bulk-destroy actions that execute SQL UPDATE and DELETE commands directly. It also supports bulk-read actions through `pluck`. It makes sense for it also to support bulk-creation.
* | Deprecate mismatched collation comparison for uniquness validatorRyuta Kamizono2019-03-041-10/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In MySQL, the default collation is case insensitive. Since the uniqueness validator enforces case sensitive comparison by default, it frequently causes mismatched collation issues (performance, weird behavior, etc) to MySQL users. https://grosser.it/2009/12/11/validates_uniqness_of-mysql-slow/ https://github.com/rails/rails/issues/1399 https://github.com/rails/rails/pull/13465 https://github.com/gitlabhq/gitlabhq/commit/c1dddf8c7d947691729f6d64a8ea768b5c915855 https://github.com/huginn/huginn/pull/1330#discussion_r55152573 I'd like to deprecate the implicit default enforcing since I frequently experienced the problems in code reviews. Note that this change has no effect to sqlite3, postgresql, and oracle-enhanced adapters which are implemented as case sensitive by default, only affect to mysql2 adapter (I can take a work if sqlserver adapter will support Rails 6.0).
* | Address "warning: in `column': the last argument was passed as a single Hash"Ryuta Kamizono2019-02-211-7/+8
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* | Fix `pluck` and `select` with custom attributesRyuta Kamizono2019-02-131-0/+1
| | | | | | | | | | | | | | | | | | Currently custom attributes are always qualified by the table name in the generated SQL wrongly even if the table doesn't have the named column, it would cause an invalid SQL error. Custom attributes should only be qualified if the table has the same named column.
* | Allow changing text and blob size without giving the `limit` optionRyuta Kamizono2019-01-291-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In MySQL, the text column size is 65,535 bytes by default (1 GiB in PostgreSQL). It is sometimes too short when people want to use a text column, so they sometimes change the text size to mediumtext (16 MiB) or longtext (4 GiB) by giving the `limit` option. Unlike MySQL, PostgreSQL doesn't allow the `limit` option for a text column (raises ERROR: type modifier is not allowed for type "text"). So `limit: 4294967295` (longtext) couldn't be used in Action Text. I've allowed changing text and blob size without giving the `limit` option, it prevents that migration failure on PostgreSQL.
* | Make `t.timestamps` with precision by defaultRyuta Kamizono2019-01-261-10/+2
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* | Use squiggly heredoc to strip odd indentation in the executed SQLRyuta Kamizono2018-11-222-38/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before: ``` LOG: execute <unnamed>: SELECT t.oid, t.typname FROM pg_type as t WHERE t.typname IN ('int2', 'int4', 'int8', 'oid', 'float4', 'float8', 'bool') LOG: execute <unnamed>: SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, r.rngsubtype, t.typtype, t.typbasetype FROM pg_type as t LEFT JOIN pg_range as r ON oid = rngtypid WHERE t.typname IN ('int2', 'int4', 'int8', 'oid', 'float4', 'float8', 'text', 'varchar', 'char', 'name', 'bpchar', 'bool', 'bit', 'varbit', 'timestamptz', 'date', 'money', 'bytea', 'point', 'hstore', 'json', 'jsonb', 'cidr', 'inet', 'uuid', 'xml', 'tsvector', 'macaddr', 'citext', 'ltree', 'interval', 'path', 'line', 'polygon', 'circle', 'lseg', 'box', 'time', 'timestamp', 'numeric') OR t.typtype IN ('r', 'e', 'd') OR t.typinput::varchar = 'array_in' OR t.typelem != 0 LOG: statement: SHOW TIME ZONE LOG: statement: SELECT 1 LOG: execute <unnamed>: SELECT COUNT(*) FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace WHERE c.relkind IN ('r','v','m') -- (r)elation/table, (v)iew, (m)aterialized view AND c.relname = 'accounts' AND n.nspname = ANY (current_schemas(false)) ``` After: ``` LOG: execute <unnamed>: SELECT t.oid, t.typname FROM pg_type as t WHERE t.typname IN ('int2', 'int4', 'int8', 'oid', 'float4', 'float8', 'bool') LOG: execute <unnamed>: SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, r.rngsubtype, t.typtype, t.typbasetype FROM pg_type as t LEFT JOIN pg_range as r ON oid = rngtypid WHERE t.typname IN ('int2', 'int4', 'int8', 'oid', 'float4', 'float8', 'text', 'varchar', 'char', 'name', 'bpchar', 'bool', 'bit', 'varbit', 'timestamptz', 'date', 'money', 'bytea', 'point', 'hstore', 'json', 'jsonb', 'cidr', 'inet', 'uuid', 'xml', 'tsvector', 'macaddr', 'citext', 'ltree', 'interval', 'path', 'line', 'polygon', 'circle', 'lseg', 'box', 'time', 'timestamp', 'numeric') OR t.typtype IN ('r', 'e', 'd') OR t.typinput::varchar = 'array_in' OR t.typelem != 0 LOG: statement: SHOW TIME ZONE LOG: statement: SELECT 1 LOG: execute <unnamed>: SELECT COUNT(*) FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace WHERE c.relkind IN ('r','v','m') -- (r)elation/table, (v)iew, (m)aterialized view AND c.relname = 'accounts' AND n.nspname = ANY (current_schemas(false)) ```
* | Exercise HABTM fixtures with foreign key constraintsRyuta Kamizono2018-10-301-45/+46
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* | `create_table` with `:primary_key` option has no effect if `id: false` is givenRyuta Kamizono2018-10-271-4/+6
| | | | | | | | Use column definition with `primary_key: true` instead.
* | Support default expression for MySQLRyuta Kamizono2018-10-251-0/+3
| | | | | | | | | | | | | | MySQL 8.0.13 and higher supports default value to be a function or expression. https://dev.mysql.com/doc/refman/8.0/en/create-table.html
* | Support expression indexes for MySQLRyuta Kamizono2018-10-251-1/+1
| | | | | | | | | | | | | | MySQL 8.0.13 and higher supports functional key parts that index expression values rather than column or column prefix values. https://dev.mysql.com/doc/refman/8.0/en/create-index.html
* | Lazy checking whether or not values in IN clause are boundableRyuta Kamizono2018-10-241-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Since #33844, eager loading/preloading with too many and/or too large ids won't be broken by pre-checking whether the value is constructable or not. But the pre-checking caused the type to be evaluated at relation build time instead of at the query execution time, that is breaking an expectation for some apps. I've made the pre-cheking lazy as much as possible, that is no longer happend at relation build time.
* | Change the empty block style to have space inside of the blockRafael Mendonça França2018-09-251-1/+1
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* | Use utf8mb4 in all tests and examplesRyuta Kamizono2018-09-211-2/+2
| | | | | | | | | | Since #33875, Rails dropped supporting MySQL 5.1 which does not support utf8mb4. We no longer need to use legacy utf8 (utf8mb3) conservatively.
* | Merge pull request #33844 from kamipo/too_many_eager_load_idsRyuta Kamizono2018-09-131-0/+1
|\ \ | | | | | | Eager loading/preloading should be worked regardless of large number of records
| * | Eager loading/preloading should be worked regardless of large number of recordsRyuta Kamizono2018-09-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since 213796f, bind params are used for IN clause if enabled prepared statements. Unfortunately, most adapter modules have a limitation for # of bind params (mysql2 65535, pg 65535, sqlite3 250000). So if eager loading large number of records at once, that query couldn't be sent to the database. Since eager loading/preloading queries are auto-generated by Active Record itself, so it should be worked regardless of large number of records like as before. Fixes #33702.
* | | Use utf8mb4 character set by default for MySQL database (#33608)Yasuo Honda2018-09-111-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Use utf8mb4 character set by default `utf8mb4` character set supports supplementary characters including emoji. `utf8` character set with 3-Byte encoding is not enough to support them. There was a downside of 4-Byte length character set with MySQL 5.5 and 5.6: "ERROR 1071 (42000): Specified key was too long; max key length is 767 bytes" for Rails string data type which is mapped to varchar(255) type. MySQL 5.7 supports 3072 byte key prefix length by default. * Remove `DEFAULT COLLATE` from Active Record unit test databases There should be no "one size fits all" collation in MySQL 5.7. Let MySQL server choose the default collation for Active Record unit test databases. Users can choose their best collation for their databases by setting `options[:collation]` based on their requirements. * InnoDB FULLTEXT indexes support since MySQL 5.6 it does not have to use MyISAM storage engine whose maximum key length is 1000 bytes. Using MyISAM storag engine with utf8mb4 character set would cause "Specified key was too long; max key length is 1000 bytes" https://dev.mysql.com/doc/refman/5.6/en/innodb-fulltext-index.html * References "10.9.1 The utf8mb4 Character Set (4-Byte UTF-8 Unicode Encoding)" https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf8mb4.html "10.9.2 The utf8mb3 Character Set (3-Byte UTF-8 Unicode Encoding)" https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf8.html "14.8.1.7 Limits on InnoDB Tables" https://dev.mysql.com/doc/refman/5.7/en/innodb-restrictions.html > If innodb_large_prefix is enabled (the default), the index key prefix limit is 3072 bytes > for InnoDB tables that use DYNAMIC or COMPRESSED row format. * CI against MySQL 5.7 Followed this instruction and changed root password to empty string. https://docs.travis-ci.com/user/database-setup/#MySQL-57 * The recommended minimum version of MySQL is 5.7.9 to support utf8mb4 character set and `innodb_default_row_format` MySQL 5.7.9 introduces `innodb_default_row_format` to support 3072 byte length index by default. Users do not have to change MySQL database configuration to support Rails string type. https://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html#sysvar_innodb_default_row_format https://dev.mysql.com/doc/refman/5.7/en/innodb-restrictions.html > If innodb_large_prefix is enabled (the default), > the index key prefix limit is 3072 bytes for InnoDB tables that use DYNAMIC or COMPRESSED row format. * The recommended minimum version of MariaDB is 10.2.2 MariaDB 10.2.2 is the first version of MariaDB supporting `innodb_default_row_format` Also MariaDB says "MySQL 5.7 is compatible with MariaDB 10.2". - innodb_default_row_format https://mariadb.com/kb/en/library/xtradbinnodb-server-system-variables/#innodb_default_row_format - "MariaDB versus MySQL - Compatibility" https://mariadb.com/kb/en/library/mariadb-vs-mysql-compatibility/ > MySQL 5.7 is compatible with MariaDB 10.2 - "Supported Character Sets and Collations" https://mariadb.com/kb/en/library/supported-character-sets-and-collations/
* / add mysql and sqlite3 default testkenjiszk2018-09-012-0/+18
|/ | | | [Gannon McGibbon + Kenji Suzuki]
* Enable `Layout/EmptyLinesAroundBlockBody` to reduce review cost in the futureRyuta Kamizono2018-07-123-4/+0
| | | | | | | We sometimes ask "✂️ extra blank lines" to a contributor in reviews like https://github.com/rails/rails/pull/33337#discussion_r201509738. It is preferable to deal automatically without depending on manpower.
* Subsecond precision is not supported until MySQL 5.6.4Ryuta Kamizono2018-07-091-6/+6
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* Fix default value for mysql time types with specified precisionNikolay Kondratyev2018-07-041-0/+2
| | | | | | | | | | | | | | | | The TIME, DATETIME, and TIMESTAMP types [have supported](https://mariadb.com/kb/en/library/microseconds-in-mariadb/) a fractional seconds precision from 0 to 6. Default values from time columns with specified precision is read as `current_timestamp(n)` from information schema. rake `db:schema:dump` produces `schema.rb` **without** default values for time columns with the specified precision: t.datetime "last_message_at", precision: 6, null: false rake `db:schema:dump` produces `schema.rb` **with** default values for time columns with the specified precision: t.datetime "last_message_at", precision: 6, default: -> { "current_timestamp(6)" }, null: false
* Fix `touch` option to behave consistently with `Persistence#touch` methodRyuta Kamizono2018-06-181-1/+3
| | | | | | | | | | | | | | | | `touch` option was added to `increment!` (#27660) and `update_counters` (#26995). But that option behaves inconsistently with `Persistence#touch` method. If `touch` option is passed attribute names, it won't update update_at/on attributes unlike `Persistence#touch` method. Due to changed from `Persistence#touch` to `increment!` with `touch` option, #31405 has a regression that `counter_cache` with `touch` option which is passed attribute names won't update update_at/on attributes. I think that the inconsistency is not intended. To get back consistency, ensure that `touch` option updates update_at/on attributes.
* Update prefix and allow suffix options for store accessorsYukio Mizuta2018-06-121-0/+1
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* Using existing models for building multiple has_one through testsRyuta Kamizono2018-04-221-14/+2
| | | | Follow up of #32514.
* Fix .new with multiple through associationsSam DeCesare2018-04-091-0/+13
| | | | | | | | | | | | | | | | | | | This fixes a bug with building an object that has multiple `has_many :through` associations through the same object. Previously, when building the object via .new, the intermediate object would be created instead of just being built. Here's an example: Given a GameBoard, that has_one Owner and Collection through Game. The following line would cause a game object to be created in the database. GameBoard.new(owner: some_owner, collection: some_collection) Whereas, if passing only one of those associations into `.new` would cause the Game object to be built and not created in the database. Now the above code will only build the Game object, and not save it.
* Merge pull request #30956 from CJStadler/with-lock-changed-deprecationRafael França2018-03-281-0/+4
| | | | Fix deprecation warnings from with_lock
* Add custom prefix to ActiveRecord::Store accessorsTan Huynh2018-03-231-0/+2
| | | | | | Add a prefix option to ActiveRecord::Store.store_accessor and ActiveRecord::Store.store. This option allows stores to have identical keys with different accessors.
* Fix multiline expression indexes for postgresql (#31621)fatkodima2018-03-161-1/+1
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* Fix occurrences Fixnum|Bignumbogdanvlviv2018-03-041-1/+1
| | | | Related to https://github.com/rails/rails/commit/d4eb0dc89ee6b476e2e10869dc282a96f956c6c7#r27830891
* Make `reflection.klass` raise if `polymorphic?` not to be misusedRyuta Kamizono2018-02-191-0/+2
| | | | | | | | | | | | | | | | This is an alternative of #31877 to fix #31876 caused by #28808. This issue was caused by a combination of several loose implementation. * finding automatic inverse association of polymorphic without context (caused by #28808) * returning `klass` even if `polymorphic?` (exists before #28808) * loose verification by `valid_inverse_reflection?` (exists before #28808) This makes `klass` raise if `polymorphic?` not to be misused. This issue will not happen unless polymorphic `klass` is misused. Fixes #31876. Closes #31877.
* Don't update counter cache when through record was not destroyedEugene Kenny2018-01-141-0/+2
| | | | | | When removing a record from a has many through association, the counter cache was being updated even if the through record halted the callback chain and prevented itself from being destroyed.
* Fix conflicts `counter_cache` with `touch: true` by optimistic locking.bogdanvlviv2017-12-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ``` # create_table :posts do |t| # t.integer :comments_count, default: 0 # t.integer :lock_version # t.timestamps # end class Post < ApplicationRecord end # create_table :comments do |t| # t.belongs_to :post # end class Comment < ApplicationRecord belongs_to :post, touch: true, counter_cache: true end ``` Before: ``` post = Post.create! # => begin transaction INSERT INTO "posts" ("created_at", "updated_at", "lock_version") VALUES ("2017-12-11 21:27:11.387397", "2017-12-11 21:27:11.387397", 0) commit transaction comment = Comment.create!(post: post) # => begin transaction INSERT INTO "comments" ("post_id") VALUES (1) UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) + 1, "lock_version" = COALESCE("lock_version", 0) + 1 WHERE "posts"."id" = 1 UPDATE "posts" SET "updated_at" = '2017-12-11 21:27:11.398330', "lock_version" = 1 WHERE "posts"."id" = 1 AND "posts"."lock_version" = 0 rollback transaction # => ActiveRecord::StaleObjectError: Attempted to touch a stale object: Post. Comment.take.destroy! # => begin transaction DELETE FROM "comments" WHERE "comments"."id" = 1 UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) - 1, "lock_version" = COALESCE("lock_version", 0) + 1 WHERE "posts"."id" = 1 UPDATE "posts" SET "updated_at" = '2017-12-11 21:42:47.785901', "lock_version" = 1 WHERE "posts"."id" = 1 AND "posts"."lock_version" = 0 rollback transaction # => ActiveRecord::StaleObjectError: Attempted to touch a stale object: Post. ``` After: ``` post = Post.create! # => begin transaction INSERT INTO "posts" ("created_at", "updated_at", "lock_version") VALUES ("2017-12-11 21:27:11.387397", "2017-12-11 21:27:11.387397", 0) commit transaction comment = Comment.create!(post: post) # => begin transaction INSERT INTO "comments" ("post_id") VALUES (1) UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) + 1, "lock_version" = COALESCE("lock_version", 0) + 1, "updated_at" = '2017-12-11 21:37:09.802642' WHERE "posts"."id" = 1 commit transaction comment.destroy! # => begin transaction DELETE FROM "comments" WHERE "comments"."id" = 1 UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) - 1, "lock_version" = COALESCE("lock_version", 0) + 1, "updated_at" = '2017-12-11 21:39:02.685520' WHERE "posts"."id" = 1 commit transaction ``` Fixes #31199.
* Refactor `length`, `order`, and `opclass` index options dumpingRyuta Kamizono2017-12-031-0/+2
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* Ensure `apply_join_dependency` for `collection_cache_key` if eager-loading ↵Ryuta Kamizono2017-11-061-0/+1
| | | | | | is needed Fixes #30315.
* Fix CI failure due to reference type mismatchRyuta Kamizono2017-08-141-10/+9
| | | | | | | | `Firm.id` is a bigint if mysql2 adapter is used, but `firm_id` is an integer. It will cause an out of range error. https://travis-ci.org/rails/rails/jobs/264112814#L776 https://travis-ci.org/rails/rails/jobs/264112835#L919
* Specify `table.name` only when `scope.table` and `table` are different (#29058)Ryuta Kamizono2017-08-111-0/+1
| | | Fixes #29045.
* Use frozen-string-literal in ActiveRecordKir Shatrov2017-07-194-0/+8
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* Fix unscoping `default_scope` in STI associationsRyuta Kamizono2017-07-191-0/+1
| | | | | | | Since 5c71000, it has lost to be able to unscope `default_scope` in STI associations. This change will use `.empty_scope?` instead of `.values.empty?` to regard as an empty scope if only have `type_condition`.
* Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"Matthew Draper2017-07-024-4/+0
| | | | | This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
* Enforce frozen string in RubocopKir Shatrov2017-07-014-0/+4
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* Fix `ids_reader` to respect case sensitive primary keyRyuta Kamizono2017-06-281-1/+1
| | | | | | | | | | | | ```ruby car = Car.create!(name: "Tofaş") # Before car.bulb_ids # => SELECT "bulbs".ID FROM "bulbs" WHERE "bulbs"."name" = $1 AND "bulbs"."car_id" = $2 [["name", "defaulty"], ["car_id", 3]] # After car.bulb_ids # => SELECT "bulbs"."ID" FROM "bulbs" WHERE "bulbs"."name" = $1 AND "bulbs"."car_id" = $2 [["name", "defaulty"], ["car_id", 3]] ```