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* | | | | | | | | Move default uuid generation to active_recordJon McCartie2015-10-233-3/+12
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* | | | | | | | | Remove no need `binds.empty?` checkingRyuta Kamizono2015-10-231-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `#exec_stmt` is private method and only called in `#exec_query`. it means `binds` is provided always. No need `binds.empty?` checking.
* | | | | | | | | Merge pull request #21918 from bogdan/refactor-preloaderSean Griffin2015-10-221-42/+30
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | Refactored association preloader for performance
| * | | | | | | | | Refactored association preloader for performanceBogdan Gusiev2015-10-221-42/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * less arrays created * less complexity with only one level of nesting in loop
* | | | | | | | | | Merge pull request #21950 from ↵Andrew White2015-10-224-11/+17
|\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rafaelsales/issues/21922-fix-ar-group-by-attribute-lookup Fix generated projection fields in group by query
| * | | | | | | | | | Refactor Calculations#execute_grouped_calculation and clean AR test caseRafael Sales2015-10-222-11/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * When tried to use `Company#accounts` test/models/company.rb I got: ``` ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column: accounts.company_id: SELECT COUNT(*) AS count_all, "companies"."firm_id" AS companies_firm_id FROM "companies" INNER JOIN "accounts" ON "accounts"."company_id" = "companies"."id" GROUP BY "companies"."firm_id" ``` * The refactor on Calculations class was just to simplify the code
| * | | | | | | | | | Fix generated projection fields in group by queryRafael Sales2015-10-223-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Closes #21922 Let `Book(id, author_id)`, `Photo(id, book_id, author_id)` and `Author(id)` Running `Book.group(:author_id).joins(:photos).count` will produce: * Rails 4.2 - conflicts `author_id` in both projection and group by: ```sql SELECT COUNT(*) AS count_all, author_id AS author_id FROM "books" INNER JOIN "photos" ON "photos"."book_id" = "books"."id" GROUP BY author_id ``` * Master (9d02a25) - conflicts `author_id` only in projection: ```sql SELECT COUNT(*) AS count_all, author_id AS author_id FROM "books" INNER JOIN "photos" ON "photos"."book_id" = "books"."id" GROUP BY "books"."author_id" ``` * With this fix: ```sql SELECT COUNT(*) AS count_all, "books"."author_id" AS books_author_id FROM "books" INNER JOIN "photos" ON "photos"."book_id" = "books"."id" GROUP BY "books"."author_id" ```
* | | | | | | | | | | Remove `#tables` extra args againRyuta Kamizono2015-10-224-24/+14
|/ / / / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This issue was resolved by #21687 already. But re-add args by #18856. `#tables` extra args was only using by `#table_exists?`. This is for internal API. This commit will remove these extra args again.
* | | | | | | | | | Extract native getter to attr_reader.jbranchaud2015-10-211-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The getter is doing nothing more than returning the ivar, so it can be extracted to an attr_reader.
* | | | | | | | | | move documentation of column options to `add_column`. Closes #20400.Yves Senn2015-10-212-79/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ci skip] It's been a source of confusion that the lower-level `add_column` referenced the higher level `column` method for available options. `column` supports additional functionality like `index: true` that is not present on `add_column`. This patch moves common option documentation to `add_column` and only documents the additional options in `column`.
* | | | | | | | | | typoScott Nelson2015-10-201-1/+1
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* | | | | | | | | Fix merge conflicts for #19938Sean Griffin2015-10-206-6/+29
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a separate commit, as it is not just a changelog conflict. Want to point out the changes in the code
| * | | | | | | | | Fix for activerecord join dependency instantiate bugMehmet Emin İNAÇ2015-05-046-6/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | use only object_id instead parent class and parent id test cases assert_equal use table name in references fix minor problems
* | | | | | | | | | Merge pull request #20653 from repinel/allow-arel-select-countSean Griffin2015-10-202-1/+55
|\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | Allow select using Arel and perform a count
| * | | | | | | | | | Allow select with Arel and count as well as calculations with ArelRoque Pinel2015-06-302-1/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It allows a query like `User.select(:name).count` to be written using Arel as `User.select(User.arel_table[:name]).count`. It exposes the calculations API to accept Arel nodes: `User.count(User.arel_table[:name])`, `User.sum(User.arel_table[:id])`, `Account.average(Account.arel_table[:credit_limit])`, `Account.maximum(Account.arel_table[:credit_limit])` and `Account.minimum(Account.arel_table[:credit_limit])`.
* | | | | | | | | | | Merge pull request #21762 from jmccartie/jm/uuidSean Griffin2015-10-202-1/+8
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set active_record config for always creating uuids in generators
| * | | | | | | | | | | Set active_record config for always creating uuids in generatorsJon McCartie2015-10-202-1/+8
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* | | | | | | | | | | | Merge pull request #20934 from maurogeorge/migration-transformations-docSean Griffin2015-10-201-15/+51
|\ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add missed available transformations to Migration Doc [ci skip]
| * | | | | | | | | | | | Add missed Available transformations to migration DocMauro George2015-07-221-15/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ci skip]
* | | | | | | | | | | | | Merge pull request #20957 from akihiro17/find-by-issueSean Griffin2015-10-203-1/+13
|\ \ \ \ \ \ \ \ \ \ \ \ \ | |_|/ / / / / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | Fix find_by with association subquery issue
| * | | | | | | | | | | | Don't cache arguments in #find_by if they are an ActiveRecord::Relationakihiro172015-10-063-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In this commit, find_by doesn't cache arguments so that find_by with association subquery works correctly. Fixes #20817
* | | | | | | | | | | | | Fix test failures caused by d99db6b8b3e4Sean Griffin2015-10-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I messed up the merge conflict, and accidentally removed a schema query that needed to be ignored.
* | | | | | | | | | | | | Qualify column names in calculationSoutaro Matsumoto2015-10-203-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Column names inserted via `group` have to be qualified with table name.
* | | | | | | | | | | | | Fix merge conflicts for #18856Sean Griffin2015-10-202-3/+11
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| * | | | | | | | | | | | | Match table names exactly on MySQLMatt Jones2015-02-084-18/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The `SHOW TABLES LIKE` command accepts metacharacters `%` and `_` in potentially unexpected ways. This can be avoided by querying `information_schema.tables` directly. Fixes #17897
* | | | | | | | | | | | | | Don't add classes to the top level namespaceSean Griffin2015-10-201-13/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've been writing too much Rust. My mind is still in the mode of things being auto-namespaced based on the file...
* | | | | | | | | | | | | | Merge pull request #21883 from tarzan/cache-key-too-preciseSean Griffin2015-10-204-8/+41
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix precision on cache_key
| * | | | | | | | | | | | | | fixes #21815Maarten Jacobs2015-10-164-8/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default timestamp used for AR is `updated_at` in nanoseconds! (:nsec) This causes issues on any machine that runs an OS that supports nanoseconds timestamps, i.e. not-OS X, where the cache_key of the record persisted in the database (milliseconds precision) is out-of-sync with the cache_key in the ruby VM. This commit adds: A test that shows the issue, it can be found in the separate file `cache_key_test.rb`, because - model couldn't be defined inline - transactional testing needed to be turned off to get it to pass the MySQL tests This seemed cleaner than putting it in an existing testcase file. It adds :usec as a dateformat that calculates datetime in microseconds It sets precision of cache_key to :usec instead of :nsec, as no db supports nsec precision on timestamps
* | | | | | | | | | | | | | | Do not cache prepared statements that are unlikely to have cache hitsSean Griffin2015-10-2012-20/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to this commit, Rails makes no differentiation between whether a query uses bind parameters, and whether or not we cache that query as a prepared statement. This leads to the cache populating extremely fast in some cases, with the statements never being reused. In particular, the two problematic cases are `where(foo: [1, 2, 3])` and `where("foo = ?", 1)`. In both cases we'll end up quoting the values rather than using a bind param, causing a cache entry for every value ever used in that query. It was noted that we can probably eventually change `where("foo = ?", 1)` to use a bind param, which would resolve that case. Additionally, on PG we can change our generated query to be `WHERE foo = ANY($1)`, and pass an array for the bind param. I hope to accomplish both in the future. For SQLite and MySQL, we still end up preparing the statements anyway, we just don't cache it. The statement will be cleaned up after it is executed. On postgres, we skip the prepare step entirely, as an API is provided to execute with bind params without preparing the statement. I'm not 100% happy on the way this ended up being structured. I was hoping to use a decorator on the visitor, rather than mixing a module into the object, but the way Arel has it's visitor pattern set up makes it very difficult to extend without inheritance. I'd like to remove the duplication from the various places that are extending it, but that'll require a larger restructuring of that initialization logic. I'm going to take another look at the structure of it soon. This changes the signature of one of the adapter's internals, and will require downstream changes from third party adapters. I'm not too worried about this, as worst case they can simply add the parameter and always ignore it, and just keep their previous behavior. Fixes #21992.
* | | | | | | | | | | | | | | Merge pull request #21932 from kamipo/add_stored_procedure_test_in_mysql2Sean Griffin2015-10-208-22/+70
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add stored procedure test in mysql2
| * | | | | | | | | | | | | | | Add stored procedure test in mysql2Ryuta Kamizono2015-10-156-17/+65
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| * | | | | | | | | | | | | | | Make `AbstractMysqlAdapter#version` publicRyuta Kamizono2015-10-152-5/+5
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* | | | | | | | | | | | | | | | Merge pull request #21962 from kamipo/fix_tinyblobSean Griffin2015-10-208-16/+36
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix to correctly schema dump the `tinyblob`
| * | | | | | | | | | | | | | | | Fix to correctly schema dump the `tinyblob`Ryuta Kamizono2015-10-158-16/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently `tinyblob` is dumped to `t.binary "tiny_blob", limit: 255`. But `t.binary ... limit: 255` is generating SQL to `varchar(255)`. It is incorrect. This commit fixes this problem.
* | | | | | | | | | | | | | | | | Add CHANGELOG entry for fix of #21955 [ci skip]Rafael Mendonça França2015-10-201-0/+6
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* | | | | | | | | | | | | | | | | Merge pull request #21974 from ↵Rafael Mendonça França2015-10-202-5/+20
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | jbranchaud/reorder-has-many-assocation-constraints Reorder application of has_many association constraints.
| * | | | | | | | | | | | | | | | | Reorder application of has_many association constraints.jbranchaud2015-10-192-1/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With `unscope!` called last, it undoes `where` constraints of the same value when the `where` is chained after the `unscope`. This is what a `rewhere` does. This is undesirable behavior. The included tests demonstrate both the `unscope(...).where(...)` behavior as well as the direct use of `rewhere(...)`. This is in reference to #21955.
* | | | | | | | | | | | | | | | | | Changed the order of Association constraints from where->order->unscope to ↵kal2015-10-203-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | unscope->where->order
* | | | | | | | | | | | | | | | | | Merge pull request #22003 from yui-knk/remove_needless_require_asYves Senn2015-10-202-4/+0
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Delete needless `require 'active_support/deprecation'`
| * | | | | | | | | | | | | | | | | | Delete needless `require 'active_support/deprecation'`yui-knk2015-10-202-4/+0
| |/ / / / / / / / / / / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When `require 'active_support/rails'`, 'active_support/deprecation' is automatically loaded.
* / / / / / / / / / / / / / / / / / Green version of moving the handling of supported arguments to `where`yui-knk2015-10-183-10/+7
|/ / / / / / / / / / / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit follow up of 4d8f62d. The difference from 4d8f62d are below: * Change `WhereClauseFactory` to accept `Arel::Nodes::Node` * Change test cases of `relation_test.rb`
* | | | | | | | | | | | | | | | | Revert "Move the handling of supported arguments to `where`"Rafael Mendonça França2015-10-172-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 4d8f62dcfa0a5157b3facbd71f75fc6639636347. Reason: This broke the build. Please recommit again when it is green.
* | | | | | | | | | | | | | | | | Suppress warnings of `assigned but unused variable`yui-knk2015-10-171-2/+0
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* | | | | | | | | | | | | | | | | Move the handling of supported arguments to `where`Sean Griffin2015-10-162-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `WhereClauseFactory` handles all other branches based on argument types, so the code fits more naturally here, and it's just where the responsibility belongs.
* | | | | | | | | | | | | | | | | `where` raises ArgumentError on unsupported types.Jake Worth2015-10-163-0/+14
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* | | | | | | | | | | | | | | | [ci skip] readonly options has been removedIgnatius Reza2015-10-161-2/+0
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* | | | | | | | | | | | | | | | Add an immutable string type to opt out of string dupingSean Griffin2015-10-151-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This type adds an escape hatch to apps for which string duping causes unacceptable memory growth. The reason we are duping them is in order to detect mutation, which was a feature added to 4.2 in #15674. The string type was modified to support this behavior in #15788. Memory growth is really only a concern for string types, as it's the only mutable type where the act of coersion does not create a new object regardless (as we're usually returning an object of a different class). I do feel strongly that if we are going to support detecting mutation, we should do it universally for any type which is mutable. While it is less common and ideomatic to mutate strings than arrays or hashes, there shouldn't be rules or gotchas to understanding our behavior. However, I also appreciate that for apps which are using a lot of string columns, this would increase the number of allocations by a large factor. To ensure that we keep our contract, if you'd like to opt out of mutation detection on strings, you'll also be option out of mutation of those strings. I'm not completely married to the thought that strings coming out of this actually need to be frozen -- and I think the name is correct either way, as the purpose of this is to provide a string type which does not detect mutation. In the new implementation, I'm only overriding `cast_value`. I did not port over the duping in `serialize`. I cannot think of a reason we'd need to dup the string there, and the tests pass without it. Unfortunately that line was introduced at a time where I was not nearly as good about writing my commit messages, so I have no context as to why I added it. Thanks past Sean. You are a jerk.
* | | | | | | | | | | | | | | | Add deprecation warning to `ActiveRecord::Relation#update`Ted Johansson2015-10-153-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When passing an instance of `ActiveRecord::Base` to `#update`, it would internally call `#find`, resulting in a misleading deprecation warning. This change gives this deprecated use of `#update` its own, meaningful warning.
* | | | | | | | | | | | | | | | freeze the column name to drop string allocations in dirty checksAaron Patterson2015-10-141-1/+1
| |/ / / / / / / / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dirty checking keeps a hash where the keys are the column name and the value is a dup of the value from the database[1]. This hash is kept for every AR object, which means that we dup every column name for every AR object that does dirty checking. Freezing the column name prevents the column name from being duped and reduced overall string allocations. Here is a benchmark to demonstrate: ```ruby require 'active_record' class Topic < ActiveRecord::Base end 20.times do |i| Process.waitpid fork { ActiveRecord::Base.establish_connection adapter: 'sqlite3', database: ':memory:' ActiveRecord::Base.connection.instance_eval do create_table(:topics) do |t| t.string :title, limit: 250 t.string :author_name t.string :author_email_address t.string :parent_title t.string :type t.string :group i.times do |j| t.string :"aaa#{j}" end t.timestamps null: true end end ObjectSpace::AllocationTracer.setup(%i{type}) Topic.create title: "aaron" # heat cache result = ObjectSpace::AllocationTracer.trace do 10.times do |i| Topic.create title: "aaron #{i}" end end puts "#{Topic.columns.length},#{(result.find { |k,v| k.first == :T_STRING }.last.first / 10)}" } end ``` 1. https://github.com/rails/rails/blob/3ad381c3f8598d9920998c8949a96b5f62b280dd/activerecord/lib/active_record/attribute_set/builder.rb#L102
* | | | | | | | | | | | | | | applies new doc guidelines to Active Record.Yves Senn2015-10-1453-458/+514
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The focus of this change is to make the API more accessible. References to method and classes should be linked to make it easy to navigate around. This patch makes exzessiv use of `rdoc-ref:` to provide more readable docs. This makes it possible to document `ActiveRecord::Base#save` even though the method is within a separate module `ActiveRecord::Persistence`. The goal here is to bring the API closer to the actual code that you would write. This commit only deals with Active Record. The other gems will be updated accordingly but in different commits. The pass through Active Record is not completely finished yet. A follow up commit will change the spots I haven't yet had the time to update. /cc @fxn