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* | Add ability to configure cache notifications infoEileen Uchitelle2018-06-121-6/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This may seem like an unnecessary refactoring but some apps want / need to configure the information passed to the query cache logger. In order to do that we can add a method here that can be easily overridden by the app itself, rather than hacking the query cache logger to include that information. To override apps can call ``` def cache_notifications_info super.merge(connected_host: "hostname") end ``` This will take what's already in the query cache logger and add `@something="yea"` to the object. At GitHub we use this to log the number of queries that are cached, the connection host and the connection url.
* | Don't use `target=`Rafael Mendonça França2018-06-111-1/+1
| | | | | | | | | | It mark the association as loaded and this can cause the object to be in an stale state.
* | Use `-=` to change the update the collection on the associationRafael Mendonça França2018-06-111-2/+1
| | | | | | | | | | This also mark the association as loaded given we changed it in memory and avoid the next access to the reader to make a query to the databse.
* | Merge pull request #29939 from arthurchui/activerecord-delete-associations-loopRafael Mendonça França2018-06-111-1/+2
|\ \ | | | | | | | | | Use hash lookup for deleting existing associations from `target`
| * | Use hash lookup for deleting existing associations from `target`Arthur Chui2017-07-251-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `Array#delete` searches for all occurrences in the `target` array. When performing `dependent: :destroy` in active_record/associations/collection_association, the loop becomes O(N^2). It is particularly slow when destroying large amount of associations (e.g. 10K records). Either `Hash` or `Set` can optimize the loop to O(N). `Hash` is slightly faster in this simple usage. ```ruby class Dummy; end num = 10_000 test1a = num.times.map { Dummy.new }; nil test1b = test1a.dup test2a = num.times.map { Dummy.new }; nil test2b = test2a.dup Benchmark.ips do |x| x.config(stats: :bootstrap, confidence: 95) x.report("hash") do hash = test1a.group_by { |r| r } test1b.select! { |r| !hash[r] } end x.report("array") do test2a.each { |r| test2b.delete(r) } end x.compare! end ``` ``` Calculating ------------------------------------- hash 11.000 i/100ms array 1.000 i/100ms ------------------------------------------------- hash 114.586 (±16.6%) i/s - 561.000 array 1.710k (±10.3%) i/s - 8.377k Comparison: array: 1710.4 i/s hash: 114.6 i/s - 14.93x slower ```
* | | Fix alias confliction when joining same table on has many through with ↵Ryuta Kamizono2018-06-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | left_joins This regression was caused by #30995 due to `Hash#fetch` won't invoke default proc. Just revert the change since #30995 is completely fixed by e9c1653. Fixes #33048.
* | | Fix GROUP BY queries to apply LIMIT/OFFSET after aggregationsRyuta Kamizono2018-06-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If `eager_loading` is true, `apply_join_dependency` force applies LIMIT/OFFSET before JOINs by `limited_ids_for` to keep parent records count. But for aggregation queries, LIMIT/OFFSET should be applied after aggregations the same as SQL semantics. And also, we could not replace SELECT list by `limited_ids_for` when a query has a GROUP BY clause. It had never been worked since it will causes generating invalid SQL for MySQL, PostgreSQL, and probably most backends. ``` % ARCONN=postgresql be ruby -w -Itest test/cases/calculations_test.rb -n test_group_by_with_limit Using postgresql Run options: -n test_group_by_with_limit --seed 20925 # Running: E Error: CalculationsTest#test_group_by_with_limit: ActiveRecord::StatementInvalid: PG::GroupingError: ERROR: column "posts.id" must appear in the GROUP BY clause or be used in an aggregate function LINE 1: SELECT DISTINCT "posts"."id", "posts"."type" AS alias_0 FRO... ^ : SELECT DISTINCT "posts"."id", "posts"."type" AS alias_0 FROM "posts" LEFT OUTER JOIN "comments" ON "comments"."post_id" = "posts"."id" GROUP BY "posts"."type" ORDER BY "posts"."type" ASC LIMIT $1 ``` Fixes #8103. Closes #27249.
* | | Fix `collection.create` to could be rolled back by `after_save`Ryuta Kamizono2018-06-071-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In `_create_record`, explicit `transaction` block requires rollback handling manually when `insert_record` is failed. We need to handle it in `_create_record`, not in `insert_record`, since our test cases expect a record added to target and returned even if `insert_record` is failed, Closes #31488.
* | | Merge pull request #33067 from kamipo/fix_force_equalityRafael França2018-06-062-1/+4
|\ \ \ | | | | | | | | Fix force equality checking not to break the serialized attribute with Array
| * | | Fix force equality checking not to break the serialized attribute with ArrayRyuta Kamizono2018-06-062-1/+4
| | | | | | | | | | | | | | | | Context: https://github.com/rails/rails/commit/43ef00e5d7a55ad79bc840276d33cb70f1f5dde5#commitcomment-29256140
* | | | Child joins should be aliased when merging relationsChalo Fernandez2018-06-061-1/+1
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rails 5.2 does not alias child joins, causing an error about duplicated table/fields: Example: Using some code like: `Post.joins(:author, :categorizations).merge(Author.select(:id)).merge(Categorization.joins(:author))` *Before this fix:* ` SELECT ... FROM "posts" INNER JOIN "authors" ON ... INNER JOIN "authors" ON ... ` *After this fix:* ` SELECT ... FROM "posts" INNER JOIN "authors" ON ... INNER JOIN "authors" "authors_categorizations" ON ... ` Before 5.2, Rails aliased the joins, but wrongfully transformed them into a LEFT OUTER JOIN. This fix will keep them as INNER JOINS, but make sure child joins are aliased, to avoid errors.
* | | Merge pull request #33051 from SamSaffron/masterMatthew Draper2018-06-062-2/+2
|\ \ \ | | | | | | | | PERF: avoid allocating column names where possible
| * | | PERF: avoid allocating column names where possibleSam2018-06-062-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When requesting columns names from database adapters AR:Result would dup/freeze column names, this prefers using fstrings which cuts down on repeat allocations Attributes that are retained keep these fstrings around for the long term Note, this has the highest impact on "short" result sets, eg: Topic.first where you can void allocating the number of columns * String.
* | | | Merge pull request #33029 from fedxgibson/raise_with_duplicate_columnsEileen M. Uchitelle2018-06-041-2/+6
|\ \ \ \ | | | | | | | | | | Migrations will raise an exception if there are multiple column defin…
| * | | | Migrations will raise an exception if there are multiple column definitions ↵Federico Martinez2018-06-011-2/+6
| |/ / / | | | | | | | | | | | | (same name).
* | | | Initialization block is a part of `build_record`Ryuta Kamizono2018-06-046-14/+10
| | | | | | | | | | | | | | | | Should be done before `before_add` callbacks.
* | | | Fix `save` in `after_create_commit` won't invoke extra `after_create_commit`Ryuta Kamizono2018-06-041-10/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since a record is already persisted in `after_create_commit`, so `save` should invoke only `after_update_commit`. This bug is caused by depending on `@_start_transaction_state` for rollback to consider whether it was `new_record` before being committed. If after commit callbacks caused another commit, the state before last commit is no longer `new_record`. Fixes #32831. Closes #18367. Closes #31106.
* | | | `record.destroy` on new record won't invoke after create commit callbacksRyuta Kamizono2018-06-031-1/+1
|/ / / | | | | | | | | | Fixes #32806.
* | | Ensure reflection_class_for is privateKevin Deisz2018-05-311-24/+27
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* | | Move ActiveStorage reflection logic entirely into ActiveStorageKevin Deisz2018-05-311-44/+2
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* | | Reflection for attachmentsKevin Deisz2018-05-301-17/+60
| | | | | | | | | | | | Add the ability to reflect on the attachments that have been defined using ActiveRecord::Reflection.
* | | Merge pull request #32952 from mechanicles/32940-fixRyuta Kamizono2018-05-291-3/+5
|\ \ \ | | | | | | | | | | | | Fix parent record should not get saved with duplicate children records
| * | | Fix parent record should not get saved with duplicate children recordsSantosh Wadghule2018-05-281-3/+5
| | |/ | |/| | | | | | | - Fixes #32940
* | | Merge pull request #33005 from mechanicles/fix-sentenceRafael França2018-05-281-1/+1
|\ \ \ | | | | | | | | Fix sentence [ci skip]
| * | | Fix sentence [ci skip]Santosh Wadghule2018-05-281-1/+1
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* | | | Fix: Arel Postgresql visitor generates invalid SQL for GROUPING SETS.david2018-05-281-2/+2
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* | | Fix that association's after_touch is not called with counter cacheRyuta Kamizono2018-05-271-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since #31405, using `#increment!` with touch option instead of `#touch` to touch belongs_to association if counter cache is enabled. It caused the regression since `#increment!` won't invoke after_touch callbacks even if touch option is given. To fix the regression, make `#increment!` invokes after_touch callbacks if touch option is given. Fixes #31559. Fixes #32408.
* | | Fix inconsistent touching behavior between assigning and unassigningRyuta Kamizono2018-05-272-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On belongs_to with `touch: true` association, unassigned object is caused touching, but assigned object is not touched. And also, if primary key is customized, it will touch against the wrong target looked up by the customized key as primary key. This change ensures correctly touching consistently between assigning and unassigning.
* | | Fix `belongs_to_counter_cache_after_update` to respect polymorphic type changeRyuta Kamizono2018-05-273-2/+9
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* | | Avoid a subquery in updating counter cacheRyuta Kamizono2018-05-262-7/+8
| | | | | | | | | | | | Since UPDATE with a subquery doesn't work on MySQL.
* | | Fix `belongs_to_counter_cache_after_update` to respect custom primary key ↵Ryuta Kamizono2018-05-261-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | counter If belongs_to primary key is customized, the callback will update counters against the wrong target looked up by the customized key as primary key. We need to convert the customized key into an object that can be referred to as primary key.
* | | Fix `different_target?` to respect custom primary key counterRyuta Kamizono2018-05-261-3/+6
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* | | Eager loading won't mutate owner recordRyuta Kamizono2018-05-252-11/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since #31575, `BelongsToAssociation#target=` replaces owner record's foreign key to fix an inverse association bug. But the method is not only used for inverse association but also used for eager loading/preloading, it caused some public behavior changes (#32338, #32375). To avoid any side-effect in loading associations, I reverted the overriding `#target=`, then introduced `#inversed_from` to replace foreign key in `set_inverse_instance`. Closes #32375.
* | | Make force equality checking more strictly not to allow serialized attributeRyuta Kamizono2018-05-253-5/+15
|/ / | | | | | | | | | | | | | | | | | | | | Since #26074, introduced force equality checking to build a predicate consistently for both `find` and `create` (fixes #27313). But the assumption that only array/range attribute have subtype was wrong. We need to make force equality checking more strictly not to allow serialized attribute. Fixes #32761.
* | Rollback parent transaction when children fails to update (#32796)Guillaume Malette2018-05-221-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Rollback parent transaction when children fails to update Rails supports autosave associations on the owner of a `has_many` relationship. In certain situation, if the children of the association fail to save, the parent is not rolled back. ```ruby class Employee < ActiveRecord::Base end class Company < ActiveRecord::Base has_many(:employees) end company = Company.new employee = company.employees.new company.save ``` In the previous example, if the Employee failed to save, the Company will not be rolled back. It will remain in the database with no associated Employee. I expect the `company.save` call to be atomic, and either create all or none of the records. The persistance of the Company already starts a transaction that nests it's children. However, it didn't track the success or failure of it's children in this very situation, and the outermost transaction is not rolled back. This PR makes the change to track the success of the child insertion and rollback the parent if any of the children fail. * Change the test to reflect what we expect Once #32862 is merged, rolling back a record will rollback it's state to match the state before the database changes were applied * Use only the public API to express the tests * Refactor to avoid reassigning saved for nested reflections [Guillaume Malette + Rafael Mendonça França]
* | Merge pull request #32865 from yahonda/another_31988Rafael França2018-05-221-5/+10
|\ \ | | | | | | Disable foreign keys during `alter_table` for sqlite3 adapter
| * | Disable foreign keys during `alter_table` for sqlite3 adapterYasuo Honda2018-05-221-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike other databases, changing SQLite3 table definitions need to create a temporary table. While changing table operations, the original table needs dropped which caused `SQLite3::ConstraintException: FOREIGN KEY constraint failed` if the table is referenced by foreign keys. This pull request disables foreign keys by `disable_referential_integrity`. Also `disable_referential_integrity` method needs to execute `defer_foreign_keys = ON` to defer re-enabling foreign keys until the transaction is committed. https://www.sqlite.org/pragma.html#pragma_defer_foreign_keys Fixes #31988 - This `defer_foreign_keys = ON` has been supported since SQLite 3.8.0 https://www.sqlite.org/releaselog/3_8_0.html and Rails 6 requires SQLite 3.8 #32923 now - <Models>.reset_column_information added to address `ActiveModel::UnknownAttributeError` ``` Error: ActiveRecord::Migration::ForeignKeyChangeColumnTest#test_change_column_of_parent_table: ActiveModel::UnknownAttributeError: unknown attribute 'name' for ActiveRecord::Migration::ForeignKeyChangeColumnTest::Post. ```
* | | Exception wording changeCory Becker2018-05-211-1/+1
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* | Merge pull request #32923 from yahonda/bump_sqlite3_version_to_38Ryuta Kamizono2018-05-213-13/+12
|\ \ | | | | | | Bump minimum SQLite version to 3.8
| * | Bump minimum SQLite version to 3.8Yasuo Honda2018-05-213-13/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These OS versions have SQLite 3.8 or higher by default. - macOS 10.10 (Yosemite) or higher - Ubuntu 14.04 LTS or higher Raising the minimum version of SQLite 3.8 introduces these changes: - All of bundled adapters support `supports_multi_insert?` - SQLite 3.8 always satisifies `supports_foreign_keys_in_create?` and `supports_partial_index?` - sqlite adapter can support `alter_table` method for foreign key referenced tables by #32865 - Deprecated `supports_multi_insert?` method
* | | Enable `Lint/StringConversionInInterpolation` rubocop ruleRyuta Kamizono2018-05-211-1/+1
|/ / | | | | | | | | To prevent redundant `to_s` like https://github.com/rails/rails/pull/32923#discussion_r189460008 automatically in the future.
* | `SqlTypeMetadata` is :nodoc: class [ci skip]Ryuta Kamizono2018-05-211-0/+1
| | | | | | | | So do not expose `PostgreSQLTypeMetadata` in the doc too.
* | Rollback correctly restore initial record id after double saveRyuta Kamizono2018-05-191-1/+1
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* | Finalize transaction record state after real transactionEugene Kenny2018-05-192-15/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After a real (non-savepoint) transaction has committed or rolled back, the original persistence-related state for all records modified in that transaction is discarded or restored, respectively. When the model has transactional callbacks, this happens synchronously in the `committed!` or `rolled_back!` methods; otherwise, it happens lazily the next time the record's persistence-related state is accessed. The synchronous code path always finalizes the state of the record, but the lazy code path only pops one "level" from the transaction counter, assuming it will always reach zero immediately after a real transaction. As the test cases included here demonstrate, that isn't always the case. By using the same logic as the synchronous code path, we ensure that the record's state is always updated after a real transaction has finished.
* | Don't expose `SingularAssociation#replace` which is internal APIRyuta Kamizono2018-05-163-47/+44
| | | | | | | | | | Originally `SingularAssociation#replace` abstract method is private, and doesn't intend to be called directly.
* | Remove :nodoc: from the methods which is added the doc [ci skip]Ryuta Kamizono2018-05-151-4/+4
| | | | | | | | Follow up of #19171 and #26825.
* | Merge pull request #32876 from wata727/add_available_transformationsGeorge Claghorn2018-05-131-0/+3
|\ \ | | | | | | Add available transformations to docs
| * | Add available transformations to docs [ci skip]wata_mac2018-05-131-0/+3
| | | | | | | | | | | | `foreign_key`, `json` and `virtual` are also available.
* | | Merge pull request #32878 from eugeneius/rm_rollback_active_record_stateRyuta Kamizono2018-05-131-14/+1
|\ \ \ | | | | | | | | Remove ActiveRecord::Transactions#rollback_active_record_state!
| * | | Remove ActiveRecord::Transactions#rollback_active_record_state!Eugene Kenny2018-05-131-14/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `rollback_active_record_state!` was removed from `save!` but not `save` in da840d13da865331297d5287391231b1ed39721b. I believe that leaving it in `save` was a mistake, since that commit was intended to move the rollback logic from the `save`/`save!` call to the transaction stack. As of 67d8bb963d5d51fc644d6b1ca20164efb4cee6d7 the record's original state is lazily restored the first time it's accessed after the transaction, instead of when a rollback occurs. This means that the call to `restore_transaction_record_state` here has no effect: the record's transaction level is incremented twice (in rollback_active_record_state! and `with_transaction_returning_status`), isn't decremented again until the the `ensure` block runs, and won't hit zero until the next time `sync_with_transaction_state` is called.
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