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* Merge pull request #31814 from fatkodima/index-nulls-orderRafael França2018-01-292-0/+34
|\ | | | | Dump correctly index nulls order for PostgreSQL
| * Dump correctly index nulls order for postgresqlfatkodima2018-01-282-0/+34
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* | Deprecate `expand_hash_conditions_for_aggregates`Ryuta Kamizono2018-01-291-0/+7
| | | | | | | | | | This can not expand an array of aggregated objects correctly, and is no longer used internally since 159b21b5.
* | Merge pull request #31615 from cben/type_for_attribute-symbolRyuta Kamizono2018-01-291-0/+14
|\ \ | | | | | | Allow type_for_attribute(:symbol)
| * | Allow type_for_attribute(:symbol)Beni Cherniavsky-Paskin2018-01-011-0/+14
| | | | | | | | | | | | Closes #31611.
* | | Fix expanding an array of `composed_of` objects which have multiple mappingsRyuta Kamizono2018-01-291-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | Follow up of #31724. If `composed_of` objects have multiple mappings, array predicate handler can not correctly handle the expanded condition. We need to handle it like polymorphic association objects.
* | | Merge pull request #31724 from orekyuu/fix-expand-composed-object-arrayRyuta Kamizono2018-01-291-0/+18
|\ \ \ | |_|/ |/| | | | | Fix not expanded problem when passing an Array object as argument to the where method using composed_of column.
| * | Allow expanding an array of `composed_of` objectsRyuta Kamizono2018-01-291-3/+2
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| * | Fix not expanded problem when passing an Array object as argument to the ↵orekyuu2018-01-261-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | where method using composed_of column. Fixes #31723 ``` david_balance = customers(:david).balance Customer.where(balance: [david_balance]).to_sql # Before: WHERE `customers`.`balance` = NULL # After : WHERE `customers`.`balance` = 50 ```
* | | Remove extra whitespaceDaniel Colson2018-01-258-46/+46
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* | | Use assert_empty and assert_not_emptyDaniel Colson2018-01-2527-127/+127
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* | | Use assert_predicate and assert_not_predicateDaniel Colson2018-01-2596-1142/+1142
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* | | Change refute to assert_notDaniel Colson2018-01-2512-32/+32
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* | | Use respond_to test helpersDaniel Colson2018-01-2515-74/+74
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* | | Bring back ability to insert zero value on primary key for fixtures (#31795)Ryuta Kamizono2018-01-261-20/+11
|/ / | | | | | | | | | | Since #29504, mysql2 adapter lost ability to insert zero value on primary key due to enforce `NO_AUTO_VALUE_ON_ZERO` disabled. That is for using `DEFAULT` on auto increment column, but we can use `NULL` instead in that case.
* | Add test case for deprecated `insert_fixtures`Ryuta Kamizono2018-01-261-2/+16
| | | | | | | | Since #31422, `insert_fixtures` is deprecated.
* | Fix `count(:all)` with eager loading and having an order other than the ↵Ryuta Kamizono2018-01-252-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | driving table This is a regression caused by 6beb4de. In PostgreSQL, ORDER BY expressions must appear in SELECT list when using DISTINCT. When using `count(:all)` with eager loading, Active Record enforces DISTINCT to count the driving table records only. 6beb4de was caused the regression because `count(:all)` with DISTINCT path no longer removes ORDER BY. We need to ignore ORDER BY when DISTINCT is enforced, otherwise not always generated valid SQL for PostgreSQL. Fixes #31783.
* | Clear the transaction state when AR object is dupedYuriy Ustushenko2018-01-251-0/+16
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* | Merge pull request #31784 from composerinteralia/relation-signatureRafael França2018-01-245-29/+41
|\ \ | | | | | | Avoid passing unnecessary arguments to relation
| * | Avoid passing unnecessary arguments to relationDaniel Colson2018-01-245-29/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most of the time the table and predicate_builder passed to Relation.new are exactly the arel_table and predicate builder of the given klass. This uses klass.arel_table and klass.predicate_builder as the defaults, so we don't have to pass them in most cases. This does change the signaure of both Relation and AssocationRelation. Are we ok with that?
* | | Skip test that use fork in the memory store dbRafael Mendonça França2018-01-241-32/+34
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* | Make discard safe when it follows a manual disconnectMatthew Draper2018-01-251-0/+40
| | | | | | | | | | | | It doesn't have to do anything, but it shouldn't fail. Fixes #31766.
* | Merge pull request #31773 from dinahshi/postgresql_bulk_patchMatthew Draper2018-01-241-2/+3
|\ \ | | | | | | Postgresql bulk_change_table should flatten procs array
| * | Use concat to join procs arrays in bulk_change_tableDinah Shi2018-01-231-2/+3
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* | | Merge pull request #31422 from Edouard-chin/multistatement-fixturesMatthew Draper2018-01-242-1/+121
|\ \ \ | | | | | | | | Build a multi-statement query when inserting fixtures
| * | | Allow a 2 bytes margin:Edouard CHIN2018-01-231-3/+5
| | | | | | | | | | | | | | | | | | | | - mysql will add a 2 bytes margin to the statement, so given a `max_allowed_packet` set to 1024 bytes, a 1024 bytes fixtures will no be inserted (mysql will throw an error) - Preventing this by decreasing the max_allowed_packet by 2 bytes when doing the comparison with the actual statement size
| * | | Build a multi-statement query when inserting fixtures:Edouard CHIN2018-01-222-1/+119
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - The `insert_fixtures` method can be optimized by making a single multi statement query for all fixtures having the same connection instead of doing a single query per table - The previous code was bulk inserting fixtures for a single table, making X query for X fixture files - This patch builds a single **multi statement query** for every tables. Given a set of 3 fixtures (authors, dogs, computers): ```ruby # before %w(authors dogs computers).each do |table| sql = build_sql(table) connection.query(sql) end # after sql = build_sql(authors, dogs, computers) connection.query(sql) ``` - `insert_fixtures` is now deprecated, `insert_fixtures_set` is the new way to go with performance improvement - My tests were done with an app having more than 700 fixtures, the time it takes to insert all of them was around 15s. Using a single multi statement query, it took on average of 8 seconds - In order for a multi statement to be executed, mysql needs to be connected with the `MULTI_STATEMENTS` [flag](https://dev.mysql.com/doc/refman/5.7/en/c-api-multiple-queries.html), which is done before inserting the fixtures by reconnecting to da the database with the flag declared. Reconnecting to the database creates some caveats: 1. We loose all open transactions; Inside the original code, when inserting fixtures, a transaction is open. Multple delete statements are [executed](https://github.com/rails/rails/blob/a681eaf22955734c142609961a6d71746cfa0583/activerecord/lib/active_record/fixtures.rb#L566) and finally the fixtures are inserted. The problem with this patch is that we need to open the transaction only after we reconnect to the DB otherwise reconnecting drops the open transaction which doesn't commit all delete statements and inserting fixtures doesn't work since we duplicated them (Primary key duplicate exception)... - In order to fix this problem, the transaction is now open directly inside the `insert_fixtures` method, right after we reconnect to the db - As an effect, since the transaction is open inside the `insert_fixtures` method, the DELETE statements need to be executed here since the transaction is open later 2. The same problem happens for the `disable_referential_integrity` since we reconnect, the `FOREIGN_KEY_CHECKS` is reset to the original value - Same solution as 1. , the disable_referential_integrity can be called after we reconnect to the transaction 3. When the multi statement query is executed, no other queries can be performed until we paginate over the set of results, otherwise mysql throws a "Commands out of sync" [Ref](https://dev.mysql.com/doc/refman/5.7/en/commands-out-of-sync.html) - Iterating over the set of results until `mysql_client.next_result` is false. [Ref](https://github.com/brianmario/mysql2#multiple-result-sets) - Removed the `active_record.sql "Fixture delete"` notification, the delete statements are now inside the INSERT's one - On mysql the `max_allowed_packet` is looked up: 1. Before executing the multi-statements query, we check the packet length of each statements, if the packet is bigger than the max_allowed_packet config, an `ActiveRecordError` is raised 2. Otherwise we concatenate the current sql statement into the previous and so on until the packet is `< max_allowed_packet`
* | | | Merge pull request #31549 from fatkodima/foreign_tablesRyuta Kamizono2018-01-231-0/+109
|\ \ \ \ | | | | | | | | | | Support for PostgreSQL foreign tables
| * | | | Support for PostgreSQL foreign tablesfatkodima2018-01-221-0/+109
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* | | | | Fix building has_one through recordRyuta Kamizono2018-01-231-0/+12
|/ / / / | | | | | | | | | | | | Fixes #31762.
* | | | Ignores a default subclass when `becomes(Parent)`Leonel Galan2018-01-221-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes issue described in #30399: A default value on the inheritance column prevented `child.becomes(Parent)` to return an instance of `Parent` as expected, instead it returns an instance of the default subclass. The change was introduced by #17169 and it was meant to affect initialization, alone. Where `Parent.new` is expected to return an instance of the default subclass.
* | | | Merge pull request #31710 from eugeneius/indestructible_through_recordRyuta Kamizono2018-01-222-4/+14
|\ \ \ \ | | | | | | | | | | Don't update counter cache when through record was not destroyed
| * | | | Don't update counter cache when through record was not destroyedEugene Kenny2018-01-142-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* | | | | Restore `test_migrations_status_with_schema_define_in_subdirectories`Ryuta Kamizono2018-01-191-7/+11
|/ / / / | | | | | | | | | | | | | | | | | | | | This test case which was added in #28287 checks that `ActiveRecord::Schema.define` loads migration versions in subdirectories. It should be kept it as it was.
* | | | Merge pull request #31663 from Edouard-chin/remove-without-sql-modeRafael França2018-01-181-0/+22
|\ \ \ \ | | | | | | | | | | Added a test around `NO_AUTO_VALUE_ON_ZERO`:
| * | | | Added a test around `NO_AUTO_VALUE_ON_ZERO`:Edouard CHIN2018-01-171-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - The mysql `NO_AUTO_VALUE_ON_ZERO` mode should be disabled when inserting fixtures in bulk, this PR adds a test to make sure we don't remove it by mistake - If we live this mode enabled, a statement like this wouldn't work and a `Duplicate entry '0' for key 'PRIMARY'` error will be raised. That's because `DEFAULT` on auto_increment will return 0 ```sql INSERT INTO `aircraft` (`id`, `name`, `wheels_count`) VALUES (DEFAULT, 'first', 2), (DEFAULT, 'second', 3) ```
* | | | | Refactor migration to move migrations paths to connectioneileencodes2018-01-186-165/+234
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rails has some support for multiple databases but it can be hard to handle migrations with those. The easiest way to implement multiple databases is to contain migrations into their own folder ("db/migrate" for the primary db and "db/seconddb_migrate" for the second db). Without this you would need to write code that allowed you to switch connections in migrations. I can tell you from experience that is not a fun way to implement multiple databases. This refactoring is a pre-requisite for implementing other features related to parallel testing and improved handling for multiple databases. The refactoring here moves the class methods from the `Migrator` class into it's own new class `MigrationContext`. The goal was to move the `migrations_paths` method off of the `Migrator` class and onto the connection. This allows users to do the following in their `database.yml`: ``` development: adapter: mysql2 username: root password: development_seconddb: adapter: mysql2 username: root password: migrations_paths: "db/second_db_migrate" ``` Migrations for the `seconddb` can now be store in the `db/second_db_migrate` directory. Migrations for the primary database are stored in `db/migrate`". The refactoring here drastically reduces the internal API for migrations since we don't need to pass `migrations_paths` around to every single method. Additionally this change does not require any Rails applications to make changes unless they want to use the new public API. All of the class methods from the `Migrator` class were `nodoc`'d except for the `migrations_paths` and `migrations_path` getter/setters respectively.
* | | | | Fix relation merger issue with `left_outer_joins`Mehmet Emin INAC2018-01-151-0/+6
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* | | | | Don't allow destroyed object mutation after `save` or `save!` is calledRyuta Kamizono2018-01-151-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently `object.save` will unfreeze the object, due to `changes_applied` replaces frozen `@attributes` to new `@attributes`. Since originally destroyed objects are not allowed to be mutated, `save` and `save!` should not return success in that case. Fixes #28563.
* | | | | `create_database` should not add default charset when `collation` is givenRyuta Kamizono2018-01-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If `collation` is given without `charset`, it may generate invalid SQL. For example `create_database(:matt_aimonetti, collation: "utf8mb4_bin")`: ``` > CREATE DATABASE `matt_aimonetti` DEFAULT CHARACTER SET `utf8` COLLATE `utf8mb4_bin`; ERROR 1253 (42000): COLLATION 'utf8mb4_bin' is not valid for CHARACTER SET 'utf8' ``` In MySQL, charset is used to find the default collation. If `collation` is given explicitly, it is not necessary to give extra charset.
* | | | | Merge pull request #28313 from sandrew/masterRyuta Kamizono2018-01-151-0/+12
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | Allow unscoping of left_outer_joins
* \ \ \ \ \ Merge pull request #23146 from piotrj/issue_18424Ryuta Kamizono2018-01-111-0/+19
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | When deleting through records, take into account association conditions
| * | | | | | When deleting through records, take into account association conditionsPiotr Jakubowski2016-05-041-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes #18424. When deleting through records, it didn't take into account the conditions that may have been affecting join model table, but was defined in association definition.
* | | | | | | Make `relation.exists?` more performant when using eager loadingRyuta Kamizono2018-01-111-10/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `relation.exists?` just wants to know if there is a result or not, does not need the exact records matched. Therefore, an intermediate SELECT query for eager loading is not necessary.
* | | | | | | Fix `stale_state` for nested `has_many :through` associationsRyuta Kamizono2018-01-101-12/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Need reloading when through record has replaced.
* | | | | | | Merge pull request #16314 from ↵Ryuta Kamizono2018-01-101-0/+29
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | zoltankiss/allow-nested-has-many-associations-on-unpersisted-parent-instances fix nested `has many :through` associations on unpersisted parent instances
| * | | | | | | Fix nested `has many :through` associations on unpersisted instancesZoltan Kiss2015-03-261-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes: #16313
* | | | | | | | resolve inconsistencies between first and to_a.first with limitBrian Christian2018-01-091-0/+18
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* | | | | | | | Fix deleting through records when using has_many through with `source_type`Ryuta Kamizono2018-01-081-12/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently deleting through records doesn't respect `source_type`. It should not be ignored in that case. Related #23209. Fixes #24116.
* | | | | | | | Fix `last` with `offset` to behave consistently with loaded relationRyuta Kamizono2018-01-071-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently `last` with `offset` behaves incorrectly because `offset` can not be reversed like `limit`. Therefore, `offset` should also be handled like `limit`.
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