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* Use separate Relation subclasses for each AR classJon Leighton2012-11-302-21/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At present, ActiveRecord::Delegation compiles delegation methods on a global basis. The compiled methods apply to all subsequent Relation instances. This creates several problems: 1) After Post.all.recent has been called, User.all.respond_to?(:recent) will be true, even if User.all.recent will actually raise an error due to no User.recent method existing. (See #8080.) 2) Depending on the AR class, the delegation should do different things. For example, if a Post.zip method exists, then Post.all.zip should call it. But this will then result in User.zip being called by a subsequent User.all.zip, even if User.zip does not exist, when in fact User.all.zip should call User.all.to_a.zip. (There are various variants of this problem.) We are creating these compiled delegations in order to avoid method missing and to avoid repeating logic on each invocation. One way of handling these issues is to add additional checks in various places to ensure we're doing the "right thing". However, this makes the compiled methods signficantly slower. In which case, there's almost no point in avoiding method_missing at all. (See #8127 for a proposed solution which takes this approach.) This is an alternative approach which involves creating a subclass of ActiveRecord::Relation for each AR class represented. So, with this patch, Post.all.class != User.all.class. This means that the delegations are compiled for and only apply to a single AR class. A compiled method for Post.all will not be invoked from User.all. This solves the above issues without incurring significant performance penalties. It's designed to be relatively seamless, however the downside is a bit of complexity and potentially confusion for a user who thinks that Post.all and User.all should be instances of the same class. Benchmark --------- require 'active_record' require 'benchmark/ips' class Post < ActiveRecord::Base establish_connection adapter: 'sqlite3', database: ':memory:' connection.create_table :posts def self.omg :omg end end relation = Post.all Benchmark.ips do |r| r.report('delegation') { relation.omg } r.report('constructing') { Post.all } end Before ------ Calculating ------------------------------------- delegation 4392 i/100ms constructing 4780 i/100ms ------------------------------------------------- delegation 144235.9 (±27.7%) i/s - 663192 in 5.038075s constructing 182015.5 (±21.2%) i/s - 850840 in 5.005364s After ----- Calculating ------------------------------------- delegation 6677 i/100ms constructing 6260 i/100ms ------------------------------------------------- delegation 166828.2 (±34.2%) i/s - 754501 in 5.001430s constructing 116575.5 (±18.6%) i/s - 563400 in 5.036690s Comments -------- Bear in mind that the standard deviations in the above are huge, so we can't compare the numbers too directly. However, we can conclude that Relation construction has become a little slower (as we'd expect), but not by a huge huge amount, and we can still construct a large number of Relations quite quickly.
* Fix memory leak in development modeJon Leighton2012-11-301-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keying these hashes by klass causes reloadable classes to never get freed. Thanks to @thedarkone for pointing this out in the comments on 221571beb6b4bb7437989bdefaf421f993ab6002. This doesn't seem to make a massive difference to performance. Benchmark --------- require 'active_record' require 'benchmark/ips' class Post < ActiveRecord::Base establish_connection adapter: 'sqlite3', database: ':memory:' end GC.disable Benchmark.ips(20) do |r| r.report { Post.connection } end Before ------ Calculating ------------------------------------- 5632 i/100ms ------------------------------------------------- 218671.0 (±1.9%) i/s - 4364800 in 19.969401s After ----- Calculating ------------------------------------- 8743 i/100ms ------------------------------------------------- 206525.9 (±17.8%) i/s - 4039266 in 19.992590s
* Revert "Fix annoy warning, when executing testcase."Andrey Deryabin2012-11-301-2/+0
| | | | | | This reverts commit a3024f81228d7b3b446408114a5dc2a86870cd35. REASON: Since warning doesn't exist
* User assert_kind_of, invert assert_equal expectationsCarlos Antonio da Silva2012-11-294-12/+12
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* Added STI support to init and building associationsJason Rush2012-11-295-0/+124
| | | | | | | | Allows you to do BaseClass.new(:type => "SubClass") as well as parent.children.build(:type => "SubClass") or parent.build_child to initialize an STI subclass. Ensures that the class name is a valid class and that it is in the ancestors of the super class that the association is expecting.
* Remove observers and sweepersRafael Mendonça França2012-11-283-338/+1
| | | | | | | | They was extracted from a plugin. See https://github.com/rails/rails-observers [Rafael Mendonça França + Steve Klabnik]
* Ensure that associations have a symbol argument.Steve Klabnik2012-11-281-0/+8
| | | | Fixes #7418.
* Use assert_nil instead of assert_equalRafael Mendonça França2012-11-281-2/+2
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* Use "refute" instead of "assert !"Carlos Antonio da Silva2012-11-271-6/+5
| | | | Remove FIXME tag from abstract adapter test.
* Merge pull request #8319 from alindeman/typoCarlos Antonio da Silva2012-11-261-1/+1
|\ | | | | Corrects typo in test name [ci skip]
| * Corrects typo in test nameAndy Lindeman2012-11-261-1/+1
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* | Don't run explain on slow queries for database adapters that don't support itBlake Smith2012-11-261-0/+10
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* Don't call will_change! for datetime nil->"".Alisdair McDiarmid2012-11-251-0/+14
| | | | | | | Setting a nil datetime attribute to a blank string should not cause the attribute to be dirty. Fix #8310
* Merge pull request #8291 from senny/8265_build_with_polymorphic_associationRafael Mendonça França2012-11-221-0/+8
|\ | | | | | | | | | | | | prevent mass assignment of polymorphic type when using `build` Conflicts: activerecord/CHANGELOG.md
| * prevent mass assignment of polymorphic type when using `build`Yves Senn2012-11-221-0/+8
| | | | | | | | Closes #8265
* | Deprecate Relation#sum with a block.Carlos Antonio da Silva2012-11-212-2/+10
| | | | | | | | | | | | | | To perform a sum calculation over the array of elements, use to_a.sum(&block). Please check the discussion in f9cb645dfcb5cc89f59d2f8b58a019486c828c73 for more context.
* | Revert "Yield only one argument instead of splatting."Carlos Antonio da Silva2012-11-211-16/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit f9cb645dfcb5cc89f59d2f8b58a019486c828c73. Conflicts: activerecord/CHANGELOG.md Revert "Allow blocks for count with ActiveRecord::Relation. Document and test that sum allows blocks" This reverts commit 9cc2bf69ce296b7351dc612a8366193390a305f3. Conflicts: activerecord/lib/active_record/relation/calculations.rb
* | Move migration test together with other join table testsCarlos Antonio da Silva2012-11-212-7/+6
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* Merge pull request #7716 from steveklabnik/issue_7715Rafael Mendonça França2012-11-211-0/+7
|\ | | | | Coerce strings in create_join_table.
| * Coerce strings in create_join_table.Steve Klabnik2012-11-211-0/+7
| | | | | | | | | | | | | | If you accidentally pass a string and a symbol, this breaks. So we coerce them both to strings. Fixes #7715
* | Merge pull request #6245 from bogdan/bc_timestampRafael Mendonça França2012-11-211-0/+9
|\ \ | | | | | | Postgresql adapter: fix handling of BC timestamps
| * | Fix postgresql adapter to handle bc timestamps correctlyBogdan Gusiev2012-11-211-0/+9
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* | | Refactoring, testing and documenting pg_connection.distinctSemyon Perepelitsa2012-11-211-0/+29
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* | Postgresql doesn't accepts limits on text columns.Victor Costan2012-11-201-0/+18
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* | Initialize accessors to remove some warnings in Ruby 2.0Carlos Antonio da Silva2012-11-191-4/+2
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* | Merge pull request #3023 from Tho85/preserve_sti_typeRafael Mendonça França2012-11-181-1/+12
|\ \ | | | | | | | | | | | | | | | | | | AR::Base.becomes should not change the STI type Conflicts: activerecord/CHANGELOG.md
| * | AR::Base.becomes should not change the STI typeThomas Hollstegge2012-11-171-1/+12
| | | | | | | | | | | | If you want to change the STI type too, use AR::Base.becomes! instead
* | | Add rename_index to change_table.Jarek Radosz2012-11-191-0/+7
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* | | Ensure ordering to make the test pass with postgresqlCarlos Antonio da Silva2012-11-181-4/+5
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* | | Add test to ensure preloading works as expected with "select" and "includes".Dieter Komendera2012-11-181-0/+13
| | | | | | | | | | | | This didn't work in rails 3.1. See #2303 for more information and original pull request.
* | | Remove not used require and some useless test commentsCarlos Antonio da Silva2012-11-171-12/+3
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* | | Fix typo in module name and make #in_time_zone privateCarlos Antonio da Silva2012-11-173-3/+5
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* | | Extract #in_time_zone helper method duplication to a moduleCarlos Antonio da Silva2012-11-173-24/+17
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* | | Simplify helper method in attribute methods testCarlos Antonio da Silva2012-11-171-3/+1
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* | | Remove return guardCarlos Antonio da Silva2012-11-171-1/+0
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* | Test for has_many bug on unsaved recordsGeorge Brocklehurst2012-11-161-0/+7
| | | | | | | | See issue #7950.
* | arel columns can be used for grouping so that "weird" column names are usableAaron Patterson2012-11-151-0/+6
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* | Assert the query result instead of checking for nothing raisedCarlos Antonio da Silva2012-11-131-4/+2
| | | | | | | | | | | | | | Nothing should be raised anyway :smile: Thanks @spastorino :heart: https://github.com/rails/rails/pull/8202/files#r2112067
* | Merge pull request #8202 from nikitug/regression_test_on_dynamic_finder_resultCarlos Antonio da Silva2012-11-131-0/+7
|\ \ | | | | | | Regression test for #7238
| * | Regression test for #7238Nikita Afanasenko2012-11-131-0/+7
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* | | Merge pull request #8176 from senny/7551_pluck_with_selectRafael Mendonça França2012-11-131-0/+6
|\ \ \ | | | | | | | | `#pluck` can be used on a relation with `select` clause (#7551)
| * | | `#pluck` can be used on a relation with `select` clause.Yves Senn2012-11-121-0/+6
| | | | | | | | | | | | | | | | Closes #7551
* | | | Add a regression test on #8195Nikita Afanasenko2012-11-131-0/+7
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* | | Merge and add tests related to 5215Vipul A M2012-11-123-18/+25
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* | Do not create useless database transaction when building `has_one` association.Bogdan Gusiev2012-11-101-0/+6
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* | Properly deprecate ConnectionHandler#connection_poolsJon Leighton2012-11-091-1/+7
| | | | | | | | | | | | | | | | Rather than just changing it and hoping for the best. Requested by @jeremy: https://github.com/rails/rails/commit/ba1544d71628abff2777c9c514142d7e9a159111#commitcomment-2106059
* | Merge pull request #8116 from senny/7993_configure_counter_cache_for_has_manyJon Leighton2012-11-091-0/+8
|\ \ | | | | | | :counter_cache option for to support custom named counter caches
| * | :counter_cache option for to support custom named counter caches. Closes #7993Yves Senn2012-11-041-0/+8
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* | | Delegate all calculations to the scope.Jon Leighton2012-11-091-0/+1
| | | | | | | | | | | | | | | | | | | | | So that the scope may be a NullRelation and return a result without executing a query. Fixes #7928
* | | CollectionProxy#pluck issues no query for a new_record? ownerJon Leighton2012-11-091-0/+1
| | | | | | | | | | | | | | | | | | | | | Fixes #8102. I couldn't find a nicer way to deal with this than delegate the call to #scope, which will be a NullRelation when we want it to be.
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