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These are for internal use only and cannot be relied on as part of the
public API. See discussion on 8c2c60511beaad05a218e73c4918ab89fb1804f0.
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This reverts commit a3024f81228d7b3b446408114a5dc2a86870cd35.
REASON: Since warning doesn't exist
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Inheritance#discriminate_class_for_record handle STI lookup duties.
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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.
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[ci skip]
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Rather than just raising a NoMethodError when copying the config, this
commit adds a warning message until either the rails-observers gem is
installed or the relevant config options are removed.
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They was extracted from a plugin.
See https://github.com/rails/rails-observers
[Rafael Mendonça França + Steve Klabnik]
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Fixes #7418.
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This table is being used to verify if the :limit options is being
ignored for text and binary columns
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Remove FIXME tag from abstract adapter test.
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We are already in the AR namespace, there's no way for it to be
undefined. See the cousin commit 13e72db77063f57c3028a906690d42fb068845bb
Refactor a bit teardown fixtures to avoid two conditionals.
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Corrects typo in test name [ci skip]
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Setting a nil datetime attribute to a blank string should not cause the
attribute to be dirty.
Fix #8310
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Introduced in 53ca22f2e11cd3050d75385bc31b6bb5055a2738.
Thanks @rochefort. [ci skip]
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prevent mass assignment of polymorphic type when using `build`
Conflicts:
activerecord/CHANGELOG.md
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Closes #8265
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Since edd94cee9af1688dd036fc58fd405adb30a5e0da, CollectionProxy
delegates all calculation methods - except count - to the scope,
which does basically what this method was doing, but since we're
delegating from the proxy, the association method was never called.
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To perform a sum calculation over the array of elements, use to_a.sum(&block).
Please check the discussion in f9cb645dfcb5cc89f59d2f8b58a019486c828c73
for more context.
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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
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This improves memory and performance without having to use symbols which
present DoS problems. Thanks @headius and @tenderlove for the
suggestion.
This was originally committed in
f1765019ce9b6292f2264b4601dad5daaffe3a89, and then reverted in
d3494903719682abc0948bef290af0d3d7b5a440 due to it causing problems in a
real application. This second attempt should solve that.
Benchmark
---------
require 'active_record'
require 'benchmark/ips'
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
class Post < ActiveRecord::Base
connection.create_table :posts, force: true do |t|
t.string :name
end
end
post = Post.create name: 'omg'
Benchmark.ips do |r|
r.report('Post.new') { Post.new name: 'omg' }
r.report('post.name') { post.name }
r.report('post.name=') { post.name = 'omg' }
r.report('Post.find(1).name') { Post.find(1).name }
end
Before
------
Calculating -------------------------------------
Post.new 1419 i/100ms
post.name 7538 i/100ms
post.name= 3024 i/100ms
Post.find(1).name 243 i/100ms
-------------------------------------------------
Post.new 20637.6 (±12.7%) i/s - 102168 in 5.039578s
post.name 1167897.7 (±18.2%) i/s - 5186144 in 4.983077s
post.name= 64305.6 (±9.6%) i/s - 317520 in 4.998720s
Post.find(1).name 2678.8 (±10.8%) i/s - 13365 in 5.051265s
After
-----
Calculating -------------------------------------
Post.new 1431 i/100ms
post.name 7790 i/100ms
post.name= 3181 i/100ms
Post.find(1).name 245 i/100ms
-------------------------------------------------
Post.new 21308.8 (±12.2%) i/s - 105894 in 5.053879s
post.name 1534103.8 (±2.1%) i/s - 7634200 in 4.979405s
post.name= 67441.0 (±7.5%) i/s - 337186 in 5.037871s
Post.find(1).name 2681.9 (±10.6%) i/s - 13475 in 5.084511s
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Coerce strings in create_join_table.
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If you accidentally pass a string and a symbol, this breaks. So
we coerce them both to strings.
Fixes #7715
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Postgresql adapter: fix handling of BC timestamps
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AR::Base.becomes should not change the STI type
Conflicts:
activerecord/CHANGELOG.md
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If you want to change the STI type too, use AR::Base.becomes! instead
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This didn't work in rails 3.1. See #2303 for more information and original pull request.
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