| Commit message (Collapse) | Author | Age | Files | Lines |
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`match_attribute_method?` is a bit confusing because it suggest
that a return value is a boolean which is not true.
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This includes the following classes:
- ActiveModel::Serializers::Xml
- ActiveRecord::Serialization::XmlSerializer
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I wrote a utility that helps find areas where you could optimize your program using a frozen string instead of a string literal, it's called [let_it_go](https://github.com/schneems/let_it_go). After going through the output and adding `.freeze` I was able to eliminate the creation of 1,114 string objects on EVERY request to [codetriage](codetriage.com). How does this impact execution?
To look at memory:
```ruby
require 'get_process_mem'
mem = GetProcessMem.new
GC.start
GC.disable
1_114.times { " " }
before = mem.mb
after = mem.mb
GC.enable
puts "Diff: #{after - before} mb"
```
Creating 1,114 string objects results in `Diff: 0.03125 mb` of RAM allocated on every request. Or 1mb every 32 requests.
To look at raw speed:
```ruby
require 'benchmark/ips'
number_of_objects_reduced = 1_114
Benchmark.ips do |x|
x.report("freeze") { number_of_objects_reduced.times { " ".freeze } }
x.report("no-freeze") { number_of_objects_reduced.times { " " } }
end
```
We get the results
```
Calculating -------------------------------------
freeze 1.428k i/100ms
no-freeze 609.000 i/100ms
-------------------------------------------------
freeze 14.363k (± 8.5%) i/s - 71.400k
no-freeze 6.084k (± 8.1%) i/s - 30.450k
```
Now we can do some maths:
```ruby
ips = 6_226k # iterations / 1 second
call_time_before = 1.0 / ips # seconds per iteration
ips = 15_254 # iterations / 1 second
call_time_after = 1.0 / ips # seconds per iteration
diff = call_time_before - call_time_after
number_of_objects_reduced * diff * 100
# => 0.4530373333993266 miliseconds saved per request
```
So we're shaving off 1 second of execution time for every 220 requests.
Is this going to be an insane speed boost to any Rails app: nope. Should we merge it: yep.
p.s. If you know of a method call that doesn't modify a string input such as [String#gsub](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37) please [give me a pull request to the appropriate file](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37), or open an issue in LetItGo so we can track and freeze more strings.
Keep those strings Frozen
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This reverts commit bdc1d329d4eea823d07cf010064bd19c07099ff3.
Before:
Calculating -------------------------------------
22.000 i/100ms
-------------------------------------------------
229.700 (± 0.4%) i/s - 1.166k
Total Allocated Object: 9939
After:
Calculating -------------------------------------
24.000 i/100ms
-------------------------------------------------
246.443 (± 0.8%) i/s - 1.248k
Total Allocated Object: 7939
```
begin
require 'bundler/inline'
rescue LoadError => e
$stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler'
raise e
end
gemfile(true) do
source 'https://rubygems.org'
# gem 'rails', github: 'rails/rails', ref: 'bdc1d329d4eea823d07cf010064bd19c07099ff3'
gem 'rails', github: 'rails/rails', ref: 'd2876141d08341ec67cf6a11a073d1acfb920de7'
gem 'arel', github: 'rails/arel'
gem 'sqlite3'
gem 'benchmark-ips'
end
require 'active_record'
require 'benchmark/ips'
ActiveRecord::Base.establish_connection('sqlite3::memory:')
ActiveRecord::Migration.verbose = false
ActiveRecord::Schema.define do
create_table :users, force: true do |t|
t.string :name, :email
t.boolean :admin
t.timestamps null: false
end
end
class User < ActiveRecord::Base
default_scope { where(admin: true) }
end
admin = true
1000.times do
attributes = {
name: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
email: "foobar@email.com",
admin: admin
}
User.create!(attributes)
admin = !admin
end
GC.disable
Benchmark.ips(5, 3) do |x|
x.report { User.all.to_a }
end
key =
if RUBY_VERSION < '2.2'
:total_allocated_object
else
:total_allocated_objects
end
before = GC.stat[key]
User.all.to_a
after = GC.stat[key]
puts "Total Allocated Object: #{after - before}"
```
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These comments do not add a lot to the readability, grepability or
overall understanding of the tests, therefore I believe they can be
safely removed.
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Activemodel is no longer dependent on mocha, so we can make the comments
more generic.
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Also fix Minitest constant reference.
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marking serialization class in Readme
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[ci skip]
Closes #20792.
Custom validation methods are implemented in terms of
callbacks. The `validate` callback chain can't be halted using return
values of individual callbacks.
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methods.
[ci skip]
While this :nodoc: did hide the constant it also removed the following
methods from the API docs:
- #attribute_method?
- #clear_validators!
- #validate
- #validators
- #validators_on
Those are public API and should be visible.
Issue was caused by dee4fbc
/cc @zzak
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Only one constraint option can be used at a time (except for the minimum
and maximum ones that can eventually be combined). However, other
options can be used with them (e.g. the validation failure message).
So let's make the distinction between these two different options
categories.
[Yves Senn, Matthew Draper & Robin Dupret]
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The heading "Active Model Length Validator" was shown on the
"ActiveModel::Validations" page without any text following it.
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Closes #11209
[Roque Pinel & Steven Yang]
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This adds a script `bin/test` to most Rails framework components. The
script uses the rails minitest plugin to augment the runner.
See https://github.com/rails/rails/pull/19571 for details about the
plugin.
I did not yet add `bin/test` for activerecord, activejob and railties.
These components rely on specific setup performed in the rake-tasks.
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AM::Serialization#serializable_hash"
This reverts commit 3d949f34816d6eca0a6b59cfa08d91f36e8e64dd.
This was already documented in other PR.
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add docs to include option at ActiveModel::Serialization [ci skip]
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[ci skip]
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It was removed when we removed mocha at
5a6ae7f7539216931f2b3f4aa53394ac4136c74e
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We are using `all:build` now.
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Remove broken and unused release task
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- We do release with release.rb
- There is no `rake/gemcutter`
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spelling fix [ci skip]
example to be consistent [ci skip]
grammatical fix
typo fixes [ci skip]
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I think we are better off leaving `sudo` outside of the documented
way of installing gems (`activerecord`, `actionpack`, …).
We don’t want newbies to think that `sudo` is required or, even worse, than
they actually have to type `[sudo] gem install`.
In most scenarios, `sudo` is not needed to install gems, and people who do
need it, probably already know about it.
What do you think? :grin:
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The test was skipped because of an issue that, in the meantime,
has been fixed: https://github.com/rubinius/rubinius/issues/3328.
Using the latest Rubinius (the one currently on Travis CI), this
is the result:
```sh
$ ruby --version
rubinius 2.5.3 (2.1.0 2482b093 2015-05-10 3.5.1 JI) [x86_64-darwin14.3.0]
```
**Before this PR**
```sh
$ ruby -Itest test/cases/attribute_assignment_test.rb
Run options: --seed 58569
.....S...
Finished in 0.048278s, 186.4203 runs/s, 269.2738 assertions/s.
9 runs, 13 assertions, 0 failures, 0 errors, 1 skips
You have skipped tests. Run with --verbose for details.
```
**After this PR**
$ ruby -Itest test/cases/attribute_assignment_test.rb
Run options: --seed 35720
.........
Finished in 0.029441s, 305.6961 runs/s, 475.5273 assertions/s.
9 runs, 14 assertions, 0 failures, 0 errors, 0 skips
```
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I believe this is a use case that was supposed to be supported, and it's
a small fix.
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`ActiveModel::Serialization#serializable_hash`
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[ci skip]
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[ci skip]
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A conjunction was needed to make these sentences correct. Breaking them
up seemed like a better option.
[ci skip]
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[ci skip]
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`ActiveModel::Dirty#[attr_name]_previous_change` to improve access
to recorded changes after the model has been saved.
It makes the dirty-attributes query methods consistent before and after
saving.
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Upgrade to Ruby 2.2.2
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and fix the grammar in the ruby_version_check.rb user message.
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Fix AS::Callbacks raising an error when `:run` callback is defined.
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This reverts commit 796cab45561fce268aa74e6587cdb9cae3bb243e.
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