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* Allow `Relation#or` to accept a relation with different `references`Sean Griffin2017-07-251-0/+7
| | | | | | | | | Note that the two relations must still have the same `includes` values (which is the only time `references` actually does anything). It makes sense for us to allow this, as `references` is called implicitly when passing a hash to `where`. Fixes #29411
* Stop creating ApplicationRecord on model generationLisa Ugray2017-07-241-0/+5
| | | | | | | | | | | | | | When generating models, we created ApplicationRecord in the default location if no file existed there. That was annoying for people who moved it to somewhere else in the autoload path. At this point, the vast majority of apps should have either run the upgrade script or generated a model since upgrading. For those that haven't the error message after generating a new model should be helpful: NameError: uninitialized constant ApplicationRecord To ease friction in that case, this also adds a generator for ApplicationRecord.
* Fix `COUNT(DISTINCT ...)` with `ORDER BY` and `LIMIT`Ryuta Kamizono2017-07-221-0/+4
| | | | | | | Since #26972, `ORDER BY` is kept if `LIMIT` is presented for performance. But in most SQL servers (e.g. PostgreSQL, SQL Server, etc), `ORDER BY` expressions must appear in select list for `SELECT DISTINCT`. We should not replace existing select list in that case.
* Match destroyed_by_association for has_one to has_manyLisa Ugray2017-07-211-0/+6
| | | | | | | When a has_many association is destroyed by `dependent: destroy`, destroyed_by_association is set to the reflection, and this can be checked in callbacks. This matches that behaviour for has_one associations.
* Merge branch 'master' into fix_unscope_where_column_with_orSean Griffin2017-07-181-0/+12
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| * Allow multiparameter assigned attributes to be used with `text_field`Sean Griffin2017-07-171-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Between 4.2 and 5.0 the behavior of how multiparameter attributes interact with `_before_type_cast` changed. In 4.2 it returns the post-type-cast value. After 5.0, it returns the hash that gets sent to the type. This behavior is correct, but will cause an issue if you then tried to render that value in an input like `text_field` or `hidden_field`. In this case, we want those fields to use the post-type-cast form, instead of the `_before_type_cast` (the main reason it uses `_before_type_cast` at all is to avoid losing data when casting a non-numeric string to integer). I've opted to modify `came_from_user?` rather than introduce a new method for this as I want to avoid complicating that contract further, and technically the multiparameter hash didn't come from assignment, it was constructed internally by AR. Close #27888.
| * Post.joins(:users) should not be affected by `User.current_scope`Sean Griffin2017-07-171-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change was introduced by #18109. The intent of that change was to specifically apply `unscoped`, not to allow all changes to `current_scope` to affect the join. The idea of allowing `current_scope` to affect joins is interesting and potentially more consistent, but has sever problems associated with it. The fact that we're specifically stripping out joins indicates one such problem (and potentially leads to invalid queries). Ultimately it's difficult to reason about what `Posts.joins(:users)` actually means if it's affected by `User.current_scope`, and it's difficult to specifically control what does or doesn't get added. If we were starting from scratch, I don't think I'd have `joins` be affected by `default_scope` either, but that's too big of a breaking change to make at this point. With this change, we no longer apply `current_scope` when bringing in joins, with the singular exception of the motivating use case which introduced this bug, which is providing a way to *opt-out* of having the default scope apply to joins. Fixes #29338.
* | Bugfix: unscope(where: [columns]) would not remove the correct binds sometimesMaxime Lapointe2017-07-131-0/+15
|/ | | | | Post.where(id: 1).or(Post.where(id: 2)).where(foo: 3).unscope(where: :foo).where_clause.binds.map(&:value) Would return [2, 3] instead of the expected [1,2]
* Change sqlite3 boolean serialization to use 1 and 0Lisa Ugray2017-07-111-0/+11
| | | | | | | | | | | | | | | | | | | | Abstract boolean serialization has been using 't' and 'f', with MySQL overriding that to use 1 and 0. This has the advantage that SQLite natively recognizes 1 and 0 as true and false, but does not natively recognize 't' and 'f'. This change in serialization requires a migration of stored boolean data for SQLite databases, so it's implemented behind a configuration flag whose default false value is deprecated. The flag itself can be deprecated in a future version of Rails. While loaded models will give the correct result for boolean columns without migrating old data, where() clauses will interact incorrectly with old data. While working in this area, also change the abstract adapter to use `"TRUE"` and `"FALSE"` as quoted values and `true` and `false` for unquoted. These are supported by PostreSQL, and MySQL remains overriden.
* Add backticks [ci skip]Ryuta Kamizono2017-07-091-2/+2
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* Merge pull request #28867 from eugeneius/skip_query_cache_in_batchesMatthew Draper2017-07-091-0/+8
|\ | | | | | | Skip query cache for in_batches and friends
* | Fix changelog wording as suggested.Dennis Taylor2017-07-071-2/+2
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* | Don't translate non-database exceptions.Dennis Taylor2017-07-051-0/+5
|/ | | | The AbstractAdapter will translate all StandardErrors generated during the course of a query into ActiveRecord::StatementInvalids. Unfortunately, it'll also mangle non-database-related errors generated in ActiveSupport::Notification callbacks after the query has successfully completed. This should prevent it from translating errors from ActiveSupport::Notifications.
* Fix eager loading association with scope including joinsRyuta Kamizono2017-07-041-0/+6
| | | | Fixes #28324.
* Add backticks [ci skip]Ryuta Kamizono2017-07-031-2/+2
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* Apply record state based on parent transaction stateeileencodes2017-07-011-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's say you have a nested transaction and both records are saved. Before the outer transaction closes, a rollback is performed. Previously the record in the outer transaction would get marked as not persisted but the inner transaction would get persisted. ```ruby Post.transaction do post_one.save # will get rolled back Post.transaction(requires_new: true) do post_two.save # incorrectly remains marked as persisted end raise ActiveRecord::Rollback end ``` To fix this the PR changes transaction handling to have the child transaction ask the parent how the records should be marked. When there are child transactions, it will always be a SavpointTransaction because the stack isn't empty. From there we pass the parent_transaction to the child SavepointTransaction where we add the children to the parent so the parent can mark the inner transaction as rolledback and thus mark the record as not persisted. `update_attributes_from_transaction_state` uses the `completed?` check to correctly mark all the transactions as rolledback and the inner record as not persisted. ```ruby Post.transaction do post_one.save # will get rolled back Post.transaction(requires_new: true) do post_two.save # with new behavior, correctly marked as not persisted on rollback end raise ActiveRecord::Rollback end ``` Fixes #29320
* Deprecate and replace `set_state` methodeileencodes2017-07-011-0/+8
| | | | | | | | | | | | | `set_state` was directly setting the transaction state instance variable. It's better to set the state via specific methods (`rollback!` and `commit!` respectively. While undocumented and untested, it's possible someone is using `set_state` in their app or gem so I've added a deprecation notice to it. No where in the app do we use `nullify!` but I wanted to keep existing behavior while replacing the method with a better pattern.
* Deprecate delegating to `arel` in `Relation`Ryuta Kamizono2017-06-291-0/+4
| | | | | | | | | | | | | Active Record doesn't rely delegating to `arel` in the internal since 425f2ca. The delegation is a lower priority than delegating to `klass`, so it is pretty unclear which method is delegated to `arel`. For example, `bind_values` method was removed at b06f64c (a series of changes https://github.com/rails/rails/compare/79f71d3...b06f64c). But a relation still could respond to the method because `arel` also have the same named method (#28976). Removing the delegation will achieve predictable behavior.
* Merge pull request #29601 from ↵Rafael Mendonça França2017-06-281-0/+4
|\ | | | | | | | | | | kamipo/fix_eager_loading_to_respect_store_full_sti_class Fix eager loading to respect `store_full_sti_class` setting
| * Fix eager loading to respect `store_full_sti_class` settingRyuta Kamizono2017-06-291-0/+4
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* | Enable query cache if set a configurationsTsukasa OISHI2017-06-291-0/+5
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | ActiveRecord query cache is available when a connection is connected. Therefore, query cache is unavailable when entering the ActiveRecord::Base.cache block without being connected. ```ruby ActiveRecord::Base.cache do Task.find(1) # access to database. Task.find(1) # access to database. unavailable query cache end ``` If we use query cache with batch script etc, we need to connect before that. ```ruby Task.connection ActiveRecord::Base.cache do Task.find(1) # access to database. Task.find(1) # available query cache end ``` Before version 3.1, query cache had been enabled if a configuration was set up. In order to solve the `DATABASE_URL` issue(#8074), ActiveRecord has checked whether a connection is connected or not. Today, ActiveRecord.configurations respect `DATABASE_URL`. https://github.com/rails/rails/blob/master/activerecord/lib/active_record/core.rb#L46
* ActiveRecord: do not create "has many through" records that have been removedTobias Kraze2017-06-281-0/+7
| | | | | If a record was built on a HasManyThroughAssociation, then removed, and then the record was saved, the removed record would be created anyways.
* Keep INNER JOIN when merging relationsMaxime Lapointe2017-06-201-0/+16
| | | | | | | | | | | | | | | | | Doing `Author.joins(:posts).merge(Post.joins(:comments))` does this `SELECT ... INNER JOIN posts ON... LEFT OUTER JOIN comments ON...` instead of doing `SELECT ... INNER JOIN posts ON... INNER JOIN comments ON...`. This behavior is unexpected and makes little sense as, basically, doing `Post.joins(:comments)` means I want posts that have comments. Turning it to a LEFT JOIN means I want posts and join the comments data, if any. We can see this problem directly in the existing tests. The test_relation_merging_with_merged_joins_as_symbols only does joins from posts to comments to ratings while the ratings fixture isn't loaded, but the count is non-zero.
* Fix ActiveRecord::Persistence#touch with lockingbogdanvlviv2017-06-211-0/+5
| | | | | | `ActiveRecord::Persistence#touch` does not work well when optimistic locking enabled and `locking_column`, without default value, is null in the database.
* Fix destroy with locking_column value nullbogdanvlviv2017-06-201-0/+5
| | | | | | | Fix destroying existing object does not work well when optimistic locking enabled and `locking column` is null in the database. Follow 22a822e5813ef7ea9ab6dbbb670a363899a083af, #28914
* Use bulk INSERT to insert fixturesKir Shatrov2017-06-201-0/+4
| | | | | | | | Improves the performance from O(n) to O(1). Previously it would require 50 queries to insert 50 fixtures. Now it takes only one query. Disabled on sqlite which doesn't support multiple inserts.
* Prevent making bind param if casted value is nilRyuta Kamizono2017-05-311-0/+4
| | | | | | | | If casted value is nil, generated SQL should be `IS NULL`. But currently it is generated as `= NULL`. To prevent this behavior, avoid making bind param if casted value is nil. Fixes #28945.
* Deprecate passing arguments and block at the same time to `count` and `sum` ↵Ryuta Kamizono2017-05-291-0/+4
| | | | | | | | in `ActiveRecord::Calculations` `select`, `count`, and `sum` in `Relation` are also `Enumerable` method that can be passed block. `select` with block already doesn't take arguments since 4fc3366. This is follow up of that.
* Add a Monitor to ModelSchema#load_schemaMatthew Draper2017-05-251-0/+6
| | | | [Vikrant Chaudhary, David Abdemoulaie, Matthew Draper]
* Cleanup CHANGELOGs [ci skip]Ryuta Kamizono2017-05-191-7/+7
| | | | | * Fix indentation. * Add backticks.
* Use recyclable cache keys (#29092)David Heinemeier Hansson2017-05-181-0/+9
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* Changelog entry [ci-skip]Guillermo Iguaran2017-05-151-0/+4
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* Add type caster to `RuntimeReflection#alias_name`Jon Moss2017-05-021-0/+6
| | | | | Since we have been using this `Arel::Table` since 111ccc832bc977b15af12c14e7ca078dad2d4373, in order to properly handle queries, it's important that we properly type cast arguments.
* Deprecate `supports_statement_cache?`Ryuta Kamizono2017-05-011-0/+4
| | | | | | | | | | | | | | `supports_statement_cache?` was introduced in 3.1.0.beta1 (104d0b2) for bind parameter substitution, but it is no longer used in 3.1.0.rc1 (73ff679). Originally it should respect `prepared_statements` rather than `supports_statement_cache?` (fd39847). One more thing, named `supports_statement_cache?` is pretty misreading. We have `StatementCache` and `StatementPool`. However, `supports_statement_cache?` doesn't mean `StatementCache`, but `StatementPool` unlike its name. https://github.com/rails/rails/blob/v5.1.0/activerecord/lib/active_record/statement_cache.rb https://github.com/rails/rails/blob/v5.1.0/activerecord/lib/active_record/connection_adapters/statement_pool.rb
* Cleanup CHANGELOGs [ci skip]Ryuta Kamizono2017-04-301-1/+1
| | | | | | * Remove trailing spaces. * Add backticks around method and command. * Fix indentation.
* Merge pull request #28681 from runephilosof/fix-mysql-grantRafael Mendonça França2017-04-201-0/+4
|\ | | | | | | Fix quoting in db:create grant all statement.
| * Fix quoting in db:create grant all statement.Rune Schjellerup Philosof2017-04-201-0/+4
| | | | | | | | | | | | The database name used in the test would have actually shown this if it had tried to execute on a real Mysql instead of being stubbed out (dashes in database names needs quotes).
* | Add additional raise UnknownMigrationVersionErrorbogdanvlviv2017-04-191-0/+5
| | | | | | | | | | Raise error on the movement of migrations when the current migration does not exist.
* | Fix `bin/rails db:forward` first migrationbogdanvlviv2017-04-191-0/+4
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* | Support Descending Indexes for MySQLRyuta Kamizono2017-04-161-0/+7
| | | | | | | | | | | | | | MySQL 8.0.1 and higher supports descending indexes: `DESC` in an index definition is no longer ignored. See https://dev.mysql.com/doc/refman/8.0/en/descending-indexes.html.
* | Fix inconsistency with changed attributes when overriding AR attribute readerbogdanvlviv2017-04-121-0/+4
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* | Passing in no arguments to the dynamic fixture accessor method returns all ↵Kevin McPhillips2017-04-071-0/+6
|/ | | | fixtures, not an empty array.
* Remove CHANGELOG.md entry that appears in 5-1-stableJon Moss2017-04-011-9/+0
| | | | | | | This CHANGELOG.md is a continuation of the 5-1-stable one, there shouldn't be any duplicate entries. [ci skip]
* Load only needed records on ActiveRecord::Relation#inspectHendy Tanata2017-03-281-0/+9
| | | | | | | Instead of loading all records and returning only a subset of those, just load the records as needed. Fixes #25537.
* Start Rails 5.2 developmentMatthew Draper2017-03-221-771/+1
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* Fix changelog entry about transaction error classes [ci skip]yuuji.yaginuma2017-03-201-1/+1
| | | | | `ActiveRecord::TransactionSerializationError` was introduces in #25093. However, refactored in #25107, `TransactionSerializationError` is gone.
* Merge pull request #28154 from aripollak/remove-comments-from-structure-sqlRafael Mendonça França2017-03-171-0/+7
|\ | | | | | | Drop comments from structure.sql in postgresql
| * Drop comments from structure.sql in postgresqlAri Pollak2017-02-241-0/+7
| | | | | | | | Fixes #28153.
* | Merge pull request #28318 from ↵Rafael França2017-03-171-5/+0
|\ \ | | | | | | | | | | | | bogdanvlviv/remove-ability-update-locking_column-value Remove ability update locking_column value
| * | Remove ability update locking_column valuebogdanvlviv2017-03-161-5/+0
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