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* Merge pull request #35361 from ↵Ryuta Kamizono2019-02-271-0/+7
|\ | | | | | | | | | | jvillarejo/fix_wrong_size_query_with_distinct_select Fix different `count` calculation when using `size` with DISTINCT `select`
| * fixes different `count` calculation when using `size` manual `select` with ↵jvillarejo2019-02-261-0/+6
|/ | | | | | | | DISTINCT When using `select` with `'DISTINCT( ... )'` if you use method `size` on a non loaded relation it overrides the column selected by passing `:all` so it returns different value than count. This fixes #35214
* Preparing for 6.0.0.beta2 releaseRafael Mendonça França2019-02-251-0/+2
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* Fix prepared statements caching to be enabled even when query caching is enabledRyuta Kamizono2019-02-261-0/+4
| | | | | | | | | | | | Related cbcdecd, 2a56b2d. This is a regression caused by cbcdecd. If query caching is enabled, prepared statement handles are never re-used, since we missed that a query is preprocessed when query caching is enabled, but doesn't keep the `preparable` flag. We should care about that case.
* Ensure `update_all` series cares about optimistic lockingRyuta Kamizono2019-02-251-0/+4
| | | | | | Incrementing the lock version invalidates any other process's optimistic lock, which is the desired outcome: the record no longer looks the same as it did when they loaded it.
* Don't allow `where` with non numeric string matches to 0 valuesRyuta Kamizono2019-02-201-0/+4
| | | | | | | | | | | | This is a follow-up of #35310. Currently `Topic.find_by(id: "not-a-number")` matches to a `id = 0` record. That is considered as silently leaking information. If non numeric string is given to find by an integer column, it should not be matched to any record. Related #12793.
* Merge pull request #35316 from abhaynikam/35304-add-delete_by_and_destroy_byRyuta Kamizono2019-02-191-0/+26
|\ | | | | | | Introduce delete_by and destroy_by methods to ActiveRecord::Relation
| * Introduce delete_by and destroy_by methods to ActiveRecord::RelationAbhay Nikam2019-02-191-0/+26
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* Don't allow `where` with invalid value matches to nil valuesRyuta Kamizono2019-02-181-0/+6
| | | | | | | | | That is considered as silently leaking information. If type casting doesn't return any actual value, it should not be matched to any record. Fixes #33624. Closes #33946.
* Add changelog entry for #35212Ryuta Kamizono2019-02-161-0/+4
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* Deprecate using class level querying methods if the receiver scope regarded ↵Ryuta Kamizono2019-02-151-0/+5
| | | | | | | | | | as leaked This deprecates using class level querying methods if the receiver scope regarded as leaked, since #32380 and #35186 may cause that silently leaking information when people upgrade the app. We need deprecation first before making those.
* Revert "Merge pull request #35186 from ↵Ryuta Kamizono2019-02-151-6/+0
| | | | | | | | | | | | kamipo/fix_leaking_scope_on_relation_create" This reverts commit b67d5c6dedbf033515a96a95d24d085bf99a0d07, reversing changes made to 2e018361c7c51e36d1d98bf770b7456d78dee68b. Reason: #35186 may cause that silently leaking information when people upgrade the app. We need deprecation first before making this.
* Minor changes to deprecation warning message after 35242Abhay Nikam2019-02-151-2/+2
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* Revert "Chaining named scope is no longer leaking to class level querying ↵Ryuta Kamizono2019-02-141-6/+0
| | | | | | | | | methods" This reverts #32380, since this may cause that silently leaking information when people upgrade the app. We need deprecation first before making this.
* Update CHANGELOG for database_resolver_contextJohn Hawthorn2019-02-071-2/+2
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* Fix `relation.create` to avoid leaking scope to initialization block and ↵Ryuta Kamizono2019-02-071-0/+6
| | | | | | | | | | | | | | | | | | | | callbacks `relation.create` populates scope attributes to new record by `scoping`, it is necessary to assign the scope attributes to the record and to find STI subclass from the scope attributes. But the effect of `scoping` is class global, it was caused undesired behavior that pollute all class level querying methods in initialization block and callbacks (`after_initialize`, `before_validation`, `before_save`, etc), which are user provided code. To avoid the leaking scope issue, restore the original current scope before initialization block and callbacks are invoked. Fixes #9894. Fixes #17577. Closes #31526.
* Chaining named scope is no longer leaking to class level querying methodsRyuta Kamizono2019-02-061-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Active Record uses `scoping` to delegate to named scopes from relations for propagating the chaining source scope. It was needed to restore the source scope in named scopes, but it was caused undesired behavior that pollute all class level querying methods. Example: ```ruby class Topic < ActiveRecord::Base scope :toplevel, -> { where(parent_id: nil) } scope :children, -> { where.not(parent_id: nil) } scope :has_children, -> { where(id: Topic.children.select(:parent_id)) } end # Works as expected. Topic.toplevel.where(id: Topic.children.select(:parent_id)) # Doesn't work due to leaking `toplevel` to `Topic.children`. Topic.toplevel.has_children ``` Since #29301, the receiver in named scopes has changed from the model class to the chaining source scope, so the polluting class level querying methods is no longer required for that purpose. Fixes #14003.
* Adds basic automatic database switching to RailsEileen Uchitelle2019-01-301-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following PR adds behavior to Rails to allow an application to automatically switch it's connection from the primary to the replica. A request will be sent to the replica if: * The request is a read request (`GET` or `HEAD`) * AND It's been 2 seconds since the last write to the database (because we don't want to send a user to a replica if the write hasn't made it to the replica yet) A request will be sent to the primary if: * It's not a GET/HEAD request (ie is a POST, PATCH, etc) * Has been less than 2 seconds since the last write to the database The implementation that decides when to switch reads (the 2 seconds) is "safe" to use in production but not recommended without adequate testing with your infrastructure. At GitHub in addition to the a 5 second delay we have a curcuit breaker that checks the replication delay and will send the query to a replica before the 5 seconds has passed. This is specific to our application and therefore not something Rails should be doing for you. You'll need to test and implement more robust handling of when to switch based on your infrastructure. The auto switcher in Rails is meant to be a basic implementation / API that acts as a guide for how to implement autoswitching. The impementation here is meant to be strict enough that you know how to implement your own resolver and operations classes but flexible enough that we're not telling you how to do it. The middleware is not included automatically and can be installed in your application with the classes you want to use for the resolver and operations passed in. If you don't pass any classes into the middleware the Rails default Resolver and Session classes will be used. The Resolver decides what parameters define when to switch, Operations sets timestamps for the Resolver to read from. For example you may want to use cookies instead of a session so you'd implement a Resolver::Cookies class and pass that into the middleware via configuration options. ``` config.active_record.database_selector = { delay: 2.seconds } config.active_record.database_resolver = MyResolver config.active_record.database_operations = MyResolver::MyCookies ``` Your classes can inherit from the existing classes and reimplment the methods (or implement more methods) that you need to do the switching. You only need to implement methods that you want to change. For example if you wanted to set the session token for the last read from a replica you would reimplement the `read_from_replica` method in your resolver class and implement a method that updates a new timestamp in your operations class.
* Allow changing text and blob size without giving the `limit` optionRyuta Kamizono2019-01-291-0/+4
| | | | | | | | | | | | | | In MySQL, the text column size is 65,535 bytes by default (1 GiB in PostgreSQL). It is sometimes too short when people want to use a text column, so they sometimes change the text size to mediumtext (16 MiB) or longtext (4 GiB) by giving the `limit` option. Unlike MySQL, PostgreSQL doesn't allow the `limit` option for a text column (raises ERROR: type modifier is not allowed for type "text"). So `limit: 4294967295` (longtext) couldn't be used in Action Text. I've allowed changing text and blob size without giving the `limit` option, it prevents that migration failure on PostgreSQL.
* Make `t.timestamps` with precision by defaultRyuta Kamizono2019-01-261-0/+5
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* Preparing for 6.0.0.beta1 releaseRafael Mendonça França2019-01-181-0/+2
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* Merge pull request #34966 from ↵Rafael Mendonça França2019-01-171-1/+1
|\ | | | | | | | | | | bogdanvlviv/ensure-ar-relation-exists-allows-permitted-params Ensure that AR::Relation#exists? allows only permitted params
| * Ensure that AR::Relation#exists? allows only permitted paramsbogdanvlviv2019-01-171-4/+4
| | | | | | | | | | Clarify changelog entry Related to #34891
* | Remove deprecated `#set_state` from the transaction objectRafael Mendonça França2019-01-171-0/+4
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* | Remove deprecated `#supports_statement_cache?` from the database adaptersRafael Mendonça França2019-01-171-0/+4
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* | Remove deprecated `#insert_fixtures` from the database adaptersRafael Mendonça França2019-01-171-0/+4
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* | Remove deprecated ↵Rafael Mendonça França2019-01-171-0/+4
| | | | | | | | `ActiveRecord::ConnectionAdapters::SQLite3Adapter#valid_alter_table_type?`
* | Do not allow passing the column name to `sum` when a block is passedRafael Mendonça França2019-01-171-0/+4
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* | Do not allow passing the column name to `count` when a block is passedRafael Mendonça França2019-01-171-0/+4
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* | Remove delegation of missing methods in a relation to arelRafael Mendonça França2019-01-171-0/+4
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* | Remove delegation of missing methods in a relation to private methods of the ↵Rafael Mendonça França2019-01-171-0/+4
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* | Change `SQLite3Adapter` to always represent boolean values as integersRafael Mendonça França2019-01-171-0/+8
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* | Remove ability to specify a timestamp name for `#cache_key`Rafael Mendonça França2019-01-171-0/+4
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* | Remove deprecated `ActiveRecord::Migrator.migrations_path=`Rafael Mendonça França2019-01-171-0/+4
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* | Remove deprecated `expand_hash_conditions_for_aggregates`Rafael Mendonça França2019-01-171-3/+7
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* Refs #28025 nullify *_type column on polymorphic associations on :nu… ↵Laerti2019-01-151-0/+5
| | | | | | (#28078) This PR addresses the issue described in #28025. On `dependent: :nullify` strategy only the foreign key of the relation is nullified. However on polymorphic associations the `*_type` column is not nullified leaving the record with a NULL `*_id` but the `*_type` column is present.
* Merge branch 'master' into ac_params_existsAaron Patterson2019-01-111-0/+5
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| * Support endless ranges in whereGreg Navis2019-01-111-0/+4
| | | | | | | | | | | | This commit adds support for endless ranges, e.g. (1..), that were added in Ruby 2.6. They're functionally equivalent to explicitly specifying Float::INFINITY as the end of the range.
* | Allow strong params in ActiveRecord::Base#exists?Gannon McGibbon2019-01-071-0/+4
|/ | | | | Allow `ActionController::Params` as argument of `ActiveRecord::Base#exists?`
* Deprecate passing `migrations_paths` to ↵Ryuta Kamizono2018-12-281-0/+4
| | | | | | | `connection.assume_migrated_upto_version` Since #31727, `migrations_paths` in `assume_migrated_upto_version` is no longer used.
* Merge pull request #34742 from kamipo/row_format_dynamic_by_defaultRyuta Kamizono2018-12-211-0/+8
|\ | | | | MySQL: `ROW_FORMAT=DYNAMIC` create table option by default
| * MySQL: `ROW_FORMAT=DYNAMIC` create table option by defaultRyuta Kamizono2018-12-191-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since MySQL 5.7.9, the `innodb_default_row_format` option defines the default row format for InnoDB tables. The default setting is `DYNAMIC`. The row format is required for indexing on `varchar(255)` with `utf8mb4` columns. As long as using MySQL 5.6, CI won't be passed even if MySQL server setting is properly configured the same as MySQL 5.7 (`innodb_file_per_table = 1`, `innodb_file_format = 'Barracuda'`, and `innodb_large_prefix = 1`) since InnoDB table is created as the row format `COMPACT` by default on MySQL 5.6, therefore indexing on string with `utf8mb4` columns aren't succeeded. Making `ROW_FORMAT=DYNAMIC` create table option by default for legacy MySQL version would mitigate the indexing issue on the user side, and it makes CI would be passed on MySQL 5.6 which is configured properly.
* | Require Ruby 2.5 for Rails 6.Kasper Timm Hansen2018-12-191-2/+2
|/ | | | | | | | | | Generally followed the pattern for https://github.com/rails/rails/pull/32034 * Removes needless CI configs for 2.4 * Targets 2.5 in rubocop * Updates existing CHANGELOG entries for fewer merge conflicts * Removes Hash#slice extension as that's inlined on Ruby 2.5. * Removes the need for send on define_method in MethodCallAssertions.
* Fix join table column quoting with SQLite.Gannon McGibbon2018-12-051-0/+4
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* option to disable scopes that `ActiveRecord.enum` generates by defaultAlfred Dominic2018-12-041-0/+4
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* Merge pull request #34609 from kamipo/delete_all_on_collection_proxyRyuta Kamizono2018-12-041-0/+4
|\ | | | | | | Ensure that `delete_all` on collection proxy returns affected count
| * Ensure that `delete_all` on collection proxy returns affected countRyuta Kamizono2018-12-041-0/+4
| | | | | | | | | | | | | | Unlike the `Relation#delete_all`, `delete_all` on collection proxy doesn't return affected count. Since the `CollectionProxy` is a subclass of the `Relation`, this inconsistency is probably not intended, so it should return the count consistently.
* | Reset scope after collection deleteGannon McGibbon2018-12-041-0/+4
|/ | | | | Reset scope after delete on collection association to clear stale offsets of removed records.
* Add ability to prevent writes to a databaseEileen Uchitelle2018-11-301-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This PR adds the ability to prevent writes to a database even if the database user is able to write (ie the database is a primary and not a replica). This is useful for a few reasons: 1) when converting your database from a single db to a primary/replica setup - you can fix all the writes on reads early on, 2) when we implement automatic database switching or when an app is manually switching connections this feature can be used to ensure reads are reading and writes are writing. We want to make sure we raise if we ever try to write in read mode, regardless of database type and 3) for local development if you don't want to set up multiple databases but do want to support rw/ro queries. This should be used in conjunction with `connected_to` in write mode. For example: ``` ActiveRecord::Base.connected_to(role: :writing) do Dog.connection.while_preventing_writes do Dog.create! # will raise because we're preventing writes end end ActiveRecord::Base.connected_to(role: :reading) do Dog.connection.while_preventing_writes do Dog.first # will not raise because we're not writing end end ```
* Allow aliased attributes in updateGannon McGibbon2018-11-291-0/+4
| | | | Allow aliased attributes to be used in `#update_columns` and `#update`.
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