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* [ci skip] Change some comments to conform to the style used in other commentsSharang Dashputre2018-09-013-6/+6
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* Merge pull request #33770 from eileencodes/multi-db-improvements-part-3Eileen M. Uchitelle2018-09-018-23/+62
|\ | | | | Part 3: Multi-db Improvements, identifying replica configurations
| * Convert configs_for to kwargs, add include_replicasEileen Uchitelle2018-08-316-23/+46
| | | | | | | | | | | | | | | | | | | | | | Changes the `configs_for` method from using traditional arguments to using kwargs. This is so I can add the `include_replicas` kwarg without having to always include `env_name` and `spec_name` in the method call. `include_replicas` defaults to false because everywhere internally in Rails we don't want replicas. `configs_for` is for iterating over configurations to create / run rake tasks, so we really don't ever need replicas in that case.
| * Add replica? check to DatabaseConfigEileen Uchitelle2018-08-313-0/+12
| | | | | | | | | | | | | | | | Checks if the config has a "replica" key, if so the configuration is for a replica database. This is useful for excluding replicas from the configurations list when creating the rake tasks or running rake tasks. For example, we don't want to create the primary and primary_readonly. They're the same database.
| * Add config option for `replica`.Eileen Uchitelle2018-08-311-0/+4
| | | | | | | | | | | | | | | | | | | | This allows the user to add `replica: true` to the database config to signify the connection should be treated as readonly. This will be useful so we can ignore structure dumps or migrations (or creating / deleting etc) the readonly connection for the databases. These are paired with a write database which is where the create/drop/migrate should be run. This allows us to ask the connection if it's for a replica readonly db or a primary write db.
* | Just delegate `update` with ids on a relation to `klass.update`Ryuta Kamizono2018-08-311-2/+6
|/ | | | | | | | | | | | This restores an ability that `update` with ids on a relation which is described at https://github.com/rails/rails/issues/33470#issuecomment-411203013. I personally think that the `update` with two arguments on a relation is not a designed feature, since that is totally not using a relation state, and also is not documented. But removing any feature should not be suddenly happened in a stable version even if that is not documented.
* Merge pull request #33637 from eileencodes/ar-connection-management-refactoringEileen M. Uchitelle2018-08-3012-167/+376
|\ | | | | Refactor Active Record configurations
| * Refactors Active Record connection managementEileen Uchitelle2018-08-3012-167/+376
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While the three-tier config makes it easier to define databases for multiple database applications, it quickly became clear to offer full support for multiple databases we need to change the way the connections hash was handled. A three-tier config means that when Rails needed to choose a default configuration (in the case a user doesn't ask for a specific configuration) it wasn't clear to Rails which the default was. I [bandaid fixed this so the rake tasks could work](#32271) but that fix wasn't correct because it actually doubled up the configuration hashes. Instead of attemping to manipulate the hashes @tenderlove and I decided that it made more sense if we converted the hashes to objects so we can easily ask those object questions. In a three tier config like this: ``` development: primary: database: "my_primary_db" animals: database; "my_animals_db" ``` We end up with an object like this: ``` @configurations=[ #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbded10 @env_name="development",@spec_name="primary", @config={"adapter"=>"sqlite3", "database"=>"db/development.sqlite3"}>, #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbdea90 @env_name="development",@spec_name="animals", @config={"adapter"=>"sqlite3", "database"=>"db/development.sqlite3"}> ]> ``` The configurations setter takes the database configuration set by your application and turns them into an `ActiveRecord::DatabaseConfigurations` object that has one getter - `@configurations` which is an array of all the database objects. The configurations getter returns this object by default since it acts like a hash in most of the cases we need. For example if you need to access the default `development` database we can simply request it as we did before: ``` ActiveRecord::Base.configurations["development"] ``` This will return primary development database configuration hash: ``` { "database" => "my_primary_db" } ``` Internally all of Active Record has been converted to use the new objects. I've built this to be backwards compatible but allow for accessing the hash if needed for a deprecation period. To get the original hash instead of the object you can either add `to_h` on the configurations call or pass `legacy: true` to `configurations. ``` ActiveRecord::Base.configurations.to_h => { "development => { "database" => "my_primary_db" } } ActiveRecord::Base.configurations(legacy: true) => { "development => { "database" => "my_primary_db" } } ``` The new configurations object allows us to iterate over the Active Record configurations without losing the known environment or specification name for that configuration. You can also select all the configs for an env or env and spec. With this we can always ask any object what environment it belongs to: ``` db_configs = ActiveRecord::Base.configurations.configurations_for("development") => #<ActiveRecord::DatabaseConfigurations:0x00007fd1acbdf800 @configurations=[ #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbded10 @env_name="development",@spec_name="primary", @config={"adapter"=>"sqlite3", "database"=>"db/development.sqlite3"}>, #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbdea90 @env_name="development",@spec_name="animals", @config={"adapter"=>"sqlite3", "database"=>"db/development.sqlite3"}> ]> db_config.env_name => "development" db_config.spec_name => "primary" db_config.config => { "adapter"=>"sqlite3", "database"=>"db/development.sqlite3" } ``` The configurations object is more flexible than the configurations hash and will allow us to build on top of the connection management in order to add support for primary/replica connections, sharding, and constructing queries for associations that live in multiple databases.
* | Merge pull request #33759 from schneems/schneems/move-variable-out-of-loopRichard Schneeman2018-08-301-2/+2
|\ \ | | | | | | Do not recompute length
| * | Do not recompute lengthschneems2018-08-301-2/+2
| |/ | | | | | | We can get a speed gain by moving the length calculation and assignment out of the loop.
* | Merge pull request #33760 from ↵Eileen M. Uchitelle2018-08-302-1/+4
|\ \ | | | | | | | | | | | | eileencodes/add-migrations_paths_option-to-migration-generator Add migrations_paths option to migration generator
| * | Add migrations_paths option to migration generatorEileen Uchitelle2018-08-302-1/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Adds an option to the migration generator to allow setting the migrations paths for that migration. This is useful for applications that use multiple databases and put migrations per database in their own directories. ``` bin/rails g migration CreateHouses address:string --migrations-paths=db/kingston_migrate invoke active_record create db/kingston_migrate/20180830151055_create_houses.rb ```
* | Refactor `attributes_for_{create,update}` to avoid an extra allocationRyuta Kamizono2018-08-312-4/+4
| | | | | | | | Use `delete_if` instead of `reject` to avoid an extra allocation.
* | Remove `attributes_with_values_for_{create,update}` for internal useRyuta Kamizono2018-08-302-10/+5
| | | | | | | | | | `attributes_with_values_for_update` is no longer used since ae2d36c, and `attributes_with_values_for_create` is internally used only one place.
* | Remove extra `& self.class.column_names` in `keys_for_partial_write`Ryuta Kamizono2018-08-301-6/+6
| | | | | | | | | | | | | | It should be done only once in `Persistence` module. https://github.com/rails/rails/blob/c83e30da27eafde79164ecb376e8a28ccc8d841f/activerecord/lib/active_record/persistence.rb#L721 https://github.com/rails/rails/blob/c83e30da27eafde79164ecb376e8a28ccc8d841f/activerecord/lib/active_record/persistence.rb#L740
* | Merge pull request #33729 from kddeisz/plural-automatic-inverseRafael França2018-08-291-5/+15
|\ \ | |/ |/| Find inverse associations with plural names
| * Find inverse associations with plural namesKevin Deisz2018-08-271-5/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously ActiveRecord couldn't find inverse associations if they were plural, which is a pretty standard use case. This commit changes the behavior to first attempt to find the singular version, then attempt to find the plural version. That makes it work and find plural associations as in the example below: ``` class Post has_many :comments end class Comment belongs_to :post end ``` Previously the `:post` association reflection would only attempt to find a `comment` inverse, as opposed to both a `comment` and `comments` inverse.
* | Merge pull request #33744 from bogdanvlviv/fixes-27852Ryuta Kamizono2018-08-301-1/+1
|\ \ | | | | | | Prevent leaking of user's DB credentials on `rails db:create` failure
| * | Prevent leaking of user's DB credentials on `rails db:create` failurebogdanvlviv2018-08-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Issue #27852 reports that when `rails db:create` fails, it causes leaking of user's DB credentials to $stderr. We print a DB's configuration hash in order to help users more quickly to figure out what could be wrong with his configuration. This commit changes message from "Couldn't create database for #{configuration.inspect}" to "Couldn't create '#{configuration['database']}' database. Please check your configuration.". There are two PRs that fixing it #27878, #27879, but they need a bit more work. I decided help to finish this and added Author of those PRs credit in this commit. Since it is a security issue, I think we should backport it to `5-2-stable`, and `5-1-stable`. Guided by https://edgeguides.rubyonrails.org/maintenance_policy.html#security-issues Fixes #27852 Closes #27879 Related to #27878 [Alexander Marrs & bogdanvlviv]
* | | Merge pull request #33748 from eileencodes/fix-erb-loading-issue-with-db-yamlEileen M. Uchitelle2018-08-291-1/+1
|\ \ \ | |/ / |/| | Drop load_database_yaml and fix test
| * | Drop load_database_yaml and fix testEileen Uchitelle2018-08-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We originally did the whole `load_database_yaml` thing because this test wasn't cooperating and we needed to finish the namespaced rake tasks for multiple databases. However, it turns out that YAML can't eval ERB if you don't tell it it's ERB so you get Pysch parse errors if you're using multi-line ERB or ERB with conditionals. It's a hot mess. After trying a few things and thinking it over we decided that it wasn't worth bandaiding over, the test needed to be improved. The test was added in #31135 to test that the env is loaded in these tasks. But it was blowing up because we were trying to read a database name out of the configuration - however that's not the purpose of this change. We want to read environment files in the rake tasks, but not in the config file. In this PR we changed the test to test what the PR was actually fixing. We've also deleted the `load_database_yaml` because it caused more problems than it was worth. This should fix the issues described in https://github.com/rails/rails/pull/32274#issuecomment-384161057. We also had these problems at GitHub. Co-authored-by: alimi <aibrahim2k2@gmail.com>
* | | Merge pull request #33718 from kddeisz/permit-listMatthew Draper2018-08-294-13/+15
|\ \ \ | |/ / |/| | Finish converting whitelist and blacklist references
| * | Permit list usage cleanup and clearer documentationKevin Deisz2018-08-274-11/+13
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| * | Convert remaining usage of whitelist and blacklistKevin Deisz2018-08-241-2/+2
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| * | Convert over the rest of the whitelist referencesKevin Deisz2018-08-244-11/+11
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* | Mutation tracker should be cleared before continuing around callbacksYuya Tanaka2018-08-281-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `changes_applied` should be called before continuing around callback chain. Otherwise the mutation tracker returns old value for methods like `changed`? or `id_in_database` in around callbacks. Also methods depend on `id_in_database`, like `update_column`, are not working in `around_create` callbacks. ``` class Foo < ActiveRecord::Base around_create :around_create_callback def around_create_callback ... yield p id_in_database # => nil update_column(:generated_column, generate_value) # silently fails end ... end ```
* | Add documentation for `:collation` column option (#33733)Nate Pinsky2018-08-271-0/+3
|/ | | | | | | | | | | | | * Add documentation for `:collation` option The table definition supports a `:collation` option for string and text columns, but this is not documented anywhere that I could find. I'm not sure if the "If not specified" part is accurate. From [this PR](https://github.com/rails/rails/commit/1515c4d98da3f730ef971fa5a13cad828bd9bef4), it looks like it passes `nil` and lets the database handle the collation, but I'm happy to change it if I misread the code. [ci skip] * FIX remove whitespace [Nate Pinsky + Rafael Mendonça França]
* Merge pull request #31696 from BrentWheeldon/bmw-connection-pool-load-deadlockMatthew Draper2018-08-241-1/+3
|\ | | | | Prevent deadlocks when waiting for connection from pool.
| * Prevent deadlocks when waiting for connection from pool.Brent Wheeldon2018-03-231-1/+3
| | | | | | | | | | When a thread that had the load interlock but was blocked waiting to check a connection out of the connection pool but all of the threads using the available connections were blocked waiting to obtain the load interlock an `ActiveRecord::ConnectionTimeoutError` exception was be thrown by the thread waiting for the connection. When waiting for the connection to check out we should allow loading to proceed to avoid this deadlock.
* | Merge pull request #32647 from eugeneius/lazy_transactionsMatthew Draper2018-08-239-14/+103
|\ \ | | | | | | Omit BEGIN/COMMIT statements for empty transactions
| * | Omit BEGIN/COMMIT statements for empty transactionsEugene Kenny2018-08-139-14/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a transaction is opened and closed without any queries being run, we can safely omit the `BEGIN` and `COMMIT` statements, as they only exist to modify the connection's behaviour inside the transaction. This removes the overhead of those statements when saving a record with no changes, which makes workarounds like `save if changed?` unnecessary. This implementation buffers transactions inside the transaction manager and materializes them the next time the connection is used. For this to work, the adapter needs to guard all connection use with a call to `materialize_transactions`. Because of this, adapters must opt in to get this new behaviour by implementing `supports_lazy_transactions?`. If `raw_connection` is used to get a reference to the underlying database connection, the behaviour is disabled and transactions are opened eagerly, as we can't know how the connection will be used. However when the connection is checked back into the pool, we can assume that the application won't use the reference again and reenable lazy transactions. This prevents a single `raw_connection` call from disabling lazy transactions for the lifetime of the connection.
* | | Partly revert unused accessorRyuta Kamizono2018-08-231-8/+1
| | | | | | | | | | | | This was introduced at 24f6bf0d96b58f2b2ef6a886c93d35cf8ce4f293.
* | | Add database configuration to disable advisory locks.Guo Xiang Tan2018-08-223-3/+14
| | | | | | | | | | | | https://github.com/rails/rails/issues/31190
* | | Fix merging relation that order including `?`Ryuta Kamizono2018-08-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The `Relation::Merger` has a problem that order values would be merged as nested array. That was caused an issue #33664 since if array value is passed to `order` and first element in the array includes `?`, the array is regarded as a prepared statement and bind variables. https://api.rubyonrails.org/classes/ActiveRecord/Sanitization/ClassMethods.html#method-i-sanitize_sql_for_order Just merging that as splat args like other values would fix the issue. Fixes #33664.
* | | SQLite3: Fix rename reference column not to lose foreign key constraintRyuta Kamizono2018-08-201-11/+15
| | | | | | | | | | | | Fixes #33520.
* | | Enable Style/ParenthesesAroundCondition copRyuta Kamizono2018-08-191-1/+1
| | | | | | | | | | | | To prevent style check in review like https://github.com/rails/rails/pull/33608#discussion_r211087605.
* | | Merge pull request #33585 from yahonda/diag33520Ryuta Kamizono2018-08-161-1/+9
|\ \ \ | | | | | | | | | | | | SQLite3 adapter `alter_table` method restores foreign keys
| * | | SQLite3 adapter `alter_table` method restores foreign keysYasuo Honda2018-08-111-1/+9
| | | | | | | | | | | | | | | | Related to #33520
* | | | Merge pull request #33499 from lsylvester/caller-ignore-pathsKasper Timm Hansen2018-08-152-9/+9
|\ \ \ \ | | | | | | | | | | use BacktraceCleaner for ActiveRecord verbose logging
| * | | | Use backtrace cleaner to clean up backtrace for verbose query logsLachlan Sylvester2018-08-142-9/+9
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* | | | Fix bulk change table ignores comment option on PostgreSQL.Yoshiyuki Kinjo2018-08-151-1/+5
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* | | | Follow up #33530bogdanvlviv2018-08-151-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Move changelog entry of #33530 up in order to preserve the chronology since we always add new entries on the top of a changelog file. - Clarify the changelog entry - Clarify the docs of remove_foreign_key - Ensure reversible of `remove_foreign_key` with `:primary_key` and `:to_table` options.
* | | | Merge pull request #33530 from jychen7/33515-invert-remove-foreign-keyRichard Schneeman2018-08-142-4/+24
|\ \ \ \ | | | | | | | | | | 33515 invert remove foreign key support "to_table"
| * | | | Allow `to_table` in `invert_remove_foreign_key`Rich2018-08-142-4/+24
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remove_foreign_key supports - remove_foreign_key :accounts, :branches - remove_foreign_key :accounts, to_table: :branches but the second one is not reversible. This branch is to fix and allow second one to be reversible. [Nikolay Epifanov, Rich Chen]
* / / / Use `Array#extract!` where possiblebogdanvlviv2018-08-142-8/+12
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* / / Use strings instead of symbols on calls to decorate_matching_attribute_typesDillon Welch2018-08-102-2/+2
|/ / | | | | | | | | | | The first thing this method does is run on the argument. This change passes in a string so we don't allocate a bunch of unnecessary extra strings by calling to_s on a symbol over and over.
* | Merge pull request #33454 from azbshiri/extend-affects-nested-attributesRichard Schneeman2018-08-041-1/+1
|\ \ | | | | | | Call build when extend with nested attributes defined
| * | Call build when extend with nested attributes definedAlireza Bashiri2018-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | What? From now on when `accepts_nested_attributes_for` defined and `extend` option added the overwritten `build` method being called. [Alireza Bashiri, Martins Polakovs]
* | | Merge pull request #33511 from ↵Richard Schneeman2018-08-043-4/+4
|\ \ \ | | | | | | | | | | | | | | | | albertoalmagro/change-references-from-rake-to-rails-command Change references from Rake task to Rails command
| * | | [ci skip] Change references from Rake task to Rails commandAlberto Almagro2018-08-013-4/+4
| | | | | | | | | | | | | | | | | | | | This commit follows the path we started at commit #ea4f0e2 and continued at PR #33229.
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