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| * | Fix query cache for multiple connectionsEileen Uchitelle2018-11-201-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the query cache is only aware of one handler so once we added multiple databases switching on the handler we broke query cache for those reading connections. While #34054 is the proper fix, that fix is not straight forward and I want to make sure that the query cache isn't just broken for all other connections not in the main handler.
* | | Make connection handler per thread instead of per fiberEileen Uchitelle2018-11-201-0/+37
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | The connection handler was using the RuntimeRegistry which kind of implies it's a per thread registry. But it's actually per fiber. If you have an application that uses fibers and you're using multiple databases, when you switch the connection handler to swap connections new fibers running on the same thread used to get a different connection id. This PR changes the code to actually use a thread so that we get the same connection. Fixes https://github.com/rails/rails/issues/30047 [Eileen M. Uchitelle, Aaron Patterson, & Arthur Neeves]
* | Merge pull request #33954 from ↵Aaron Patterson2018-11-201-0/+10
|\ \ | | | | | | | | | | | | febeling/inconsistent-assignment-has-many-through-33942 Fix handling of duplicates for `replace` on has_many-through
| * | Fix handling of duplicates for `replace` on has_many-throughFlorian Ebeling2018-11-061-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was a bug in the handling of duplicates when assigning (replacing) associated records, which made the result dependent on whether a given record was associated already before being assigned anew. E.g. post.people = [person, person] post.people.count # => 2 while post.people = [person] post.people = [person, person] post.people.count # => 1 This change adds a test to provoke the former incorrect behavior, and fixes it. Cause of the bug was the handling of record collections as sets, and using `-` (difference) and `&` (union) operations on them indiscriminately. This temporary conversion to sets would eliminate duplicates. The fix is to decorate record collections for these operations, and only for the `has_many :through` case. It is done by counting occurrences, and use the record together with the occurrence number as element, in order to make them work well in sets. Given a, b = *Person.all then the collection used for finding the difference or union of records would be internally changed from [a, b, a] to [[a, 1], [b, 1], [a, 2]] for these operations. So a first occurrence and a second occurrence would be distinguishable, which is all that is necessary for this task. Fixes #33942.
* | | Merge pull request #34453 from bogdanvlviv/exercise-connected_to-and-connects_toAaron Patterson2018-11-191-0/+35
|\ \ \ | | | | | | | | Exercise `connected_to` and `connects_to` methods
| * | | Exercise `connected_to` and `connects_to` methodsbogdanvlviv2018-11-151-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since both methods are public API I think it makes sense to add these tests in order to prevent any regression in the behavior of those methods after the 6.0 release. Exercise `connected_to` - Ensure that the method raises with both `database` and `role` arguments - Ensure that the method raises without `database` and `role` Exercise `connects_to` - Ensure that the method returns an array of established connections(as mentioned in the docs of the method) Related to #34052
* | | | Arel: Implemented DB-aware NULL-safe comparison (#34451)Dmytro Shteflyuk2018-11-1510-1/+358
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | * Arel: Implemented DB-aware NULL-safe comparison * Fixed where clause inversion for NULL-safe comparison * Renaming "null_safe_eq" to "is_not_distinct_from", "null_safe_not_eq" to "is_distinct_from" [Dmytro Shteflyuk + Rafael Mendonça França]
* | | Merge pull request #34437 from kbrock/union_all_parenRafael Mendonça França2018-11-132-10/+22
|\ \ \ | | | | | | | | | | | | Fix: Arel now emits a single pair of parens for UNION and UNION ALL
| * | | Emit single pair of parens for UNION and UNION ALLKeenan Brock2018-11-132-10/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mysql has a great implementation to suppress multiple parens for union sql statements. This moves that functionality to the generic implementation This also introduces that functionality for UNION ALL
* | | | Merge pull request #34436 from gmcgibbon/fix_default_max_bind_length_sqliteRafael França2018-11-131-0/+20
|\ \ \ \ | |/ / / |/| | | Adjust bind length of SQLite to default (999)
| * | | Adjust bind length of SQLite to default (999)Gannon McGibbon2018-11-131-0/+20
| | | | | | | | | | | | | | | | | | | | Change `#bind_params_length` in SQLite adapter to return the default maximum amount (999). See https://www.sqlite.org/limits.html
* | | | Merge pull request #34429 from ↵Rafael França2018-11-131-3/+21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | bogdanvlviv/ensure-that-connected_to-establish_connection Ensure that `ActiveRecord::Base#connected_to` with `:database` establishes connection
| * | | | Ensure that `ActiveRecord::Base#connected_to` with `:database` establishes ↵bogdanvlviv2018-11-121-3/+21
| |/ / / | | | | | | | | | | | | | | | | | | | | connection Related to #34052
* / / / Add support for UNLOGGED Postgresql tablesJacob Evelyn2018-11-131-0/+74
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds support for the `ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables` setting, which turns `CREATE TABLE` SQL statements into `CREATE UNLOGGED TABLE` statements. This can improve PostgreSQL performance but at the cost of data durability, and thus it is highly recommended that you *DO NOT* enable this in a production environment.
* | | Fix test case for money schema defaultRyuta Kamizono2018-11-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Follow up a741208f80dd33420a56486bd9ed2b0b9862234a. Since a741208, `Decimal#serialize` which is superclass of `Money` type is no longer no-op, so it consistently serialize/deserialize a value as a decimal even if schema default.
* | | Ensure casting by decimal attribute when queryingRyuta Kamizono2018-11-121-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Related 34cc301f03aea2e579d6687a9ea9782afc1089a0. `QueryAttribute#value_for_database` calls only `type.serialize`, and `Decimal#serialize` is a no-op unlike other attribute types. Whether or not `serialize` will invoke `cast` is undefined in our test cases, but it actually does not work properly unless it does so for now.
* | | Test prepared statement cache only if prepared statements is enabledRyuta Kamizono2018-11-091-1/+1
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* | | PostgreSQL: Properly quote all `Infinity` and `NaN`Ryuta Kamizono2018-11-091-2/+22
| | | | | | | | | | | | Since quoted `Infinity` and `NaN` are valid data for PostgreSQL.
* | | Add an :if_not_exists option to create_tablefatkodima2018-11-081-0/+30
| | | | | | | | | | | | [fatkodima & Stefan Kanev]
* | | Guard Enums against definitions with blank label namesChristophe Maximin2018-11-071-0/+18
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* | | Always add records to parent of nested transactionEugene Kenny2018-11-071-0/+11
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a record with transactional callbacks is saved, it's attached to the current transaction so that the callbacks can be run when the transaction is committed. Records can also be added manually with `add_transaction_record`, even if they have no transactional callbacks. When a nested transaction is committed, its records are transferred to the parent transaction, as transactional callbacks should only be run when the outermost transaction is committed (the "real" transaction). However, this currently only happens when the record has transactional callbacks, and not when added manually with `add_transaction_record`. If a record is added to a nested transaction, we should always attach it to the parent transaction when the nested transaction is committed, regardless of whether it has any transactional callbacks. [Eugene Kenny & Ryuta Kamizono]
* | Fix inspect with non-primary key id attributeEugene Kenny2018-11-063-0/+23
| | | | | | | | | | | | | | | | | | | | | | The `read_attribute` method always returns the primary key when asked to read the `id` attribute, even if the primary key isn't named `id`, and even if another attribute named `id` exists. For the `inspect`, `attribute_for_inspect` and `pretty_print` methods, this behaviour is undesirable, as they're used to examine the internal state of the record. By using `_read_attribute` instead, we'll get the real value of the `id` attribute.
* | Don't pass unused `connection` to `FixtureSet.new`Ryuta Kamizono2018-11-031-9/+9
| | | | | | | | | | | | | | | | | | | | The `@connection` is no longer used since ee5ab22. Originally the `@connection` was useless because it is only used in `timestamp_column_names`, which is only used if `model_class` is given. If `model_class` is given, the `@connection` is always `model_class.connection`.
* | Checking boundable not only `IN` clause but also `NOT IN` clauseRyuta Kamizono2018-11-031-0/+4
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* | `update_columns` raises if the column is unknownSean Griffin2018-10-301-0/+6
| | | | | | | | | | | | | | | | | | Previosly, `update_columns` would just take whatever keys you gave it and tried to run the update query. Most likely this would result in an error from the database. However, if the column actually did exist, but was in `ignored_columns`, this would result in the method returning successfully when it should have raised, and an attribute that should not exist written to `@attributes`.
* | Merge pull request #19388 from yakara-ltd/fix-habtm-fixture-orderRyuta Kamizono2018-10-301-0/+4
|\ \ | | | | | | Avoid violating key constraints in fixture HABTM associations
| * | Avoid violating key constraints in fixture HABTM associationsJames Le Cuirot2018-10-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | When loading fixtures, Ruby 1.9's hash key ordering means that HABTM join table rows are always loaded before the parent table rows, violating foreign key constraints that may be in place. This very simple change ensures that the parent table's key appears first in the hash. Violations may still occur if fixtures are loaded in the wrong order but those instances can be avoided unlike this one.
* | | Merge pull request #34196 from gmcgibbon/connection_switch_string_nameEileen M. Uchitelle2018-10-301-0/+39
|\ \ \ | | | | | | | | Add support for hash and url configs to be used in connected_to
| * | | Add support for hash and url configs in connected_toGannon McGibbon2018-10-261-0/+39
| | | | | | | | | | | | | | | | | | | | Add support for hash and url configs in database hash of `ActiveRecord::Base.connected_to`.
* | | | Exercise HABTM fixtures with foreign key constraintsRyuta Kamizono2018-10-302-45/+52
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* | | `exists?` with string argument is not invalid typeRyuta Kamizono2018-10-271-5/+13
| | | | | | | | | | | | | | | | | | Any type can be a primary key, so blank string is also valid value. Closes #26356.
* | | `create_table` with `:primary_key` option has no effect if `id: false` is givenRyuta Kamizono2018-10-273-8/+6
| | | | | | | | | | | | Use column definition with `primary_key: true` instead.
* | | Ignore empty condition on #construct_relation_for_existsr7kamura2018-10-271-0/+4
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At https://github.com/rails/rails/commit/fc0e3354af7e7878bdd905a95ce4c1491113af9a, ```rb relation = relation.where(conditions) ``` was rewritten to: ```rb relation.where!(condition) ``` This change accidentally changed the result of `Topic.exists?({})` from true to false. To fix this regression, first I moved the blank check logic (`opts.blank?`) from `#where` to `#where!`, because I thought `#where!` should be identical to `#where`, except that instead of returning a new relation, it adds the condition to the existing relation. But on second thought after some discussion on https://github.com/rails/rails/pull/34329, I started to think that just fixing `#construct_relation_for_exists` is more preferable than changing `#where` and `#where!`.
* | Merge pull request #34208 from yskkin/inspect_with_parameter_filterRyuta Kamizono2018-10-261-2/+54
|\ \ | | | | | | Implement AR#inspect using ParameterFilter
| * | Implement AR#inspect using ParamterFilter.Yoshiyuki Kinjo2018-10-191-2/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | AR instance support `filter_parameters` since #33756. Though Regex or Proc is valid as `filter_parameters`, they are not supported as AR#inspect. I also add :mask option and #filter_params to `ActiveSupport::ParameterFilter#new` to implement this.
* | | Merge pull request #34307 from kamipo/mysql_expression_supportRyuta Kamizono2018-10-265-3/+25
|\ \ \ | | | | | | | | Support default expression and expression indexes for MySQL
| * | | Support default expression for MySQLRyuta Kamizono2018-10-253-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Kamizono2018-10-252-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* | | | Partly revert #31819bogdanvlviv2018-10-261-26/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PR#31819 changed `#preloaders_on` and added some test, then #33938 reverted changes that were added to the method in #31819. Since changes in the method were reverted and as mentioned in the comment https://github.com/rails/rails/pull/31819#discussion_r221847481 that titles of the tests added in #31819 don't reflect implementation I think we can remove those test for now.
* | | | `assert_called_with` should require `args` argumentbogdanvlviv2018-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two main reasons why `assert_called_with` should require `args` argument: 1) If we want to assert that some method should be called and we don't need to check with which arguments it should be called then we should use `assert_called`. 2) `assert_called_with` without `args` argument doesn't assert anything! ```ruby assert_called_with(@object, :increment) do @object.decrement end ``` It causes false assertions in tests that could cause regressions in the project. I found this bug by working on [minitest-mock_expectations](https://github.com/bogdanvlviv/minitest-mock_expectations) gem. This gem is an extension for minitest that provides almost the same method call assertions. I was wondering whether you would consider adding "minitest-mock_expectations" to `rails/rails` instead of private `ActiveSupport::Testing::MethodCallAssertions` module. If yes, I'll send a patch - https://github.com/bogdanvlviv/rails/commit/a970ecc42c3a9637947599f2c13e3762e4b59208
* | | | Deterministic connection collation in testsRyuta Kamizono2018-10-251-0/+1
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default collation for utf8mb4 is changed to utf8mb4_0900_ai_ci in MySQL 8.0, so `test_mysql_connection_collation_is_configured` is affected by MySQL version and/or default_collation_for_utf8mb4 system variable. https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_collation_for_utf8mb4 ``` % ARCONN=mysql2 be ruby -w -Itest test/cases/adapters/mysql2/connection_test.rb -n test_mysql_connection_collation_is_configured Using mysql2 Run options: -n test_mysql_connection_collation_is_configured --seed 10421 # Running: F Failure: Mysql2ConnectionTest#test_mysql_connection_collation_is_configured [test/cases/adapters/mysql2/connection_test.rb:108]: Expected: "utf8mb4_general_ci" Actual: "utf8mb4_0900_ai_ci" rails test test/cases/adapters/mysql2/connection_test.rb:106 Finished in 0.013842s, 72.2450 runs/s, 144.4900 assertions/s. 1 runs, 2 assertions, 1 failures, 0 errors, 0 skips ```
* | / Lazy checking whether or not values in IN clause are boundableRyuta Kamizono2018-10-244-5/+6
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | 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.
* | Add regression test against habtm memoized singular_idsAlberto Almagro2018-10-161-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting in Rails 5.0.0 and still present in Rails 5.2.1, `singular_ids` got memoized and didn't reload after more items were added to the relation. Although 19c8071 happens to fix the issue, it only adds tests for `has_many` relations while this bug only affected `has_and_belongs_to_many` relations. This commit adds a regression test to ensure it never happens again with `habtm` relations. Ensures #34179 never gets reproduced.
* | Fix Collection cache key with limit and custom select (PG:AmbigousColumn: Error)Federico Martinez2018-10-151-0/+14
| | | | | | | | Change query to use alias name for timestamp_column to avoid ambiguity problems when using timestamp from subquery.
* | Ensure to test that `project.developers` is ordered by `developers.name desc`Ryuta Kamizono2018-10-151-1/+1
|/ | | | | | | | | `developers.name desc` was added at d59f3a7, but any test case isn't failed even if the `developers.name desc` is removed since all tested developers are consistently ordered on both `name` and `id`. I changed one developers creation ordering to ensure to test that `project.developers` is ordered by `developers.name desc`.
* Basic API for connection switchingEileen Uchitelle2018-10-101-0/+193
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This PR adds the ability to 1) connect to multiple databases in a model, and 2) switch between those connections using a block. To connect a model to a set of databases for writing and reading use the following API. This API supercedes `establish_connection`. The `writing` and `reading` keys represent handler / role names and `animals` and `animals_replica` represents the database key to look up the configuration hash from. ``` class AnimalsBase < ApplicationRecord connects_to database: { writing: :animals, reading: :animals_replica } end ``` Inside the application - outside the model declaration - we can switch connections with a block call to `connected_to`. If we want to connect to a db that isn't default (ie readonly_slow) we can connect like this: Outside the model we may want to connect to a new database (one that is not in the default writing/reading set) - for example a slow replica for making slow queries. To do this we have the `connected_to` method that takes a `database` hash that matches the signature of `connects_to`. The `connected_to` method also takes a block. ``` AcitveRecord::Base.connected_to(database: { slow_readonly: :primary_replica_slow }) do ModelInPrimary.do_something_thats_slow end ``` For models that are already loaded and connections that are already connected, `connected_to` doesn't need to pass in a `database` because you may want to run queries against multiple databases using a specific role/handler. In this case `connected_to` can take a `role` and use that to swap on the connection passed. This simplies queries - and matches how we do it in GitHub. Once you're connected to the database you don't need to re-connect, we assume the connection is in the pool and simply pass the handler we'd like to swap on. ``` ActiveRecord::Base.connected_to(role: :reading) do Dog.read_something_from_dog ModelInPrimary.do_something_from_model_in_primary end ```
* Raise on invalid definition valuesAlberto Almagro2018-10-101-0/+11
| | | | | | | | | When defining a Hash enum it can be easy to use [] instead of {}. This commit checks that only valid definition values are provided, those can be a Hash, an array of Symbols or an array of Strings. Otherwise it raises an ArgumentError. Fixes #33961
* Merge pull request #34122 from kamipo/generate_relation_methodsRyuta Kamizono2018-10-104-5/+27
|\ | | | | Generate delegation methods to named scope in the definition time
| * Generate delegation methods to named scope in the definition timeRyuta Kamizono2018-10-094-5/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The delegation methods to named scope are defined when `method_missing` is invoked on the relation. Since #29301, the receiver in the named scope is changed to the relation like others (e.g. `default_scope`, etc) for consistency. Most named scopes would be delegated from relation by `method_missing`, since we don't allow scopes to be defined which conflict with instance methods on `Relation` (#31179). But if a named scope is defined with the same name as any method on the `superclass` (e.g. `Kernel.open`), the `method_missing` on the relation is not invoked. To address the issue, make the delegation methods to named scope is generated in the definition time. Fixes #34098.
* | Merge pull request #34094 from ↵Ryuta Kamizono2018-10-103-0/+89
|\ \ | | | | | | | | | | | | christophemaximin/fix-activerecord-clearing-of-query-cache Fix inconsistent behavior by clearing QueryCache when reloading associations
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