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It should be done only once in `Persistence` module.
https://github.com/rails/rails/blob/c83e30da27eafde79164ecb376e8a28ccc8d841f/activerecord/lib/active_record/persistence.rb#L721
https://github.com/rails/rails/blob/c83e30da27eafde79164ecb376e8a28ccc8d841f/activerecord/lib/active_record/persistence.rb#L740
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Follow up #32937 [ci skip]
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Context https://github.com/rails/rails/pull/33605#discussion_r210354278
Related to #32937, #33605
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"Configuring Rails Applications" guide [ci skip]
Related to #32937, #33605.
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Remove the reference to the PR.
Usually, we write reference to solved issues in the changelog files.
Related to #33605.
Add missing dots.
Improve formatting.
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Without this, `inverse_associations_test.rb` breaks when running in isolation.
https://travis-ci.org/rails/rails/jobs/422266840#L1894-L1899
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Find inverse associations with plural names
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Previously ActiveRecord couldn't find inverse associations if they were plural, which is a pretty standard use case. This commit changes the behavior to first attempt to find the singular version, then attempt to find the plural version. That makes it work and find plural associations as in the example below:
```
class Post
has_many :comments
end
class Comment
belongs_to :post
end
```
Previously the `:post` association reflection would only attempt to find a `comment` inverse, as opposed to both a `comment` and `comments` inverse.
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20% faster `try`
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Following up on #33747, this takes things a step further by pulling out
the method name from the arguments array, letting us skip an allocation
in the case where there are no arguments -- notably, this also no longer
*requires* the splat to be an array, allowing us to benefit from
optimizations in Jruby (and maybe MRI in the future) of skipping the
array allocation entirely.
Benchmark results:
```
Warming up --------------------------------------
old 179.987k i/100ms
new 199.201k i/100ms
Calculating -------------------------------------
old 3.029M (± 1.6%) i/s - 15.299M in 5.052417s
new 3.657M (± 1.2%) i/s - 18.326M in 5.012648s
Comparison:
new: 3656620.7 i/s
old: 3028848.3 i/s - 1.21x slower
```
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Add "Ruby on Rails 6.0 Release Notes" guide [ci skip]
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This commit adds a skeleton of "Ruby on Rails 6.0 Release Notes".
It isn't a good time to add changelogs' entries to this guide since we can
redo/revert some things till the final release 6.0.
It would be better to do it close to the release.
But we already can add mentions about major features
that have been added to 6.0. I added mention about "Parallel Testing".
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Prevent leaking of user's DB credentials on `rails db:create` failure
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Issue #27852 reports that when `rails db:create` fails, it causes
leaking of user's DB credentials to $stderr.
We print a DB's configuration hash in order to help users more quickly
to figure out what could be wrong with his configuration.
This commit changes message from
"Couldn't create database for #{configuration.inspect}" to
"Couldn't create '#{configuration['database']}' database. Please check your configuration.".
There are two PRs that fixing it #27878, #27879, but they need a bit more work.
I decided help to finish this and added Author of those PRs credit in this commit.
Since it is a security issue, I think we should backport it to
`5-2-stable`, and `5-1-stable`.
Guided by https://edgeguides.rubyonrails.org/maintenance_policy.html#security-issues
Fixes #27852
Closes #27879
Related to #27878
[Alexander Marrs & bogdanvlviv]
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Fewer allocations in caching/fragments.rb
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Instead of using a splat on the head and tail we can mutate the array by flattening 1 level. We get further savings by not allocating another via `compact` but instead by using `compact!`
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Faster time_value.rb
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The multiplication of the value takes a long time when we can instead mutate and use the string value directly.
The `microsec` perf increases speed by 27% in the ideal case (which is the most common).
```
original_string = ".443959"
require 'benchmark/ips'
Benchmark.ips do |x|
x.report("multiply") {
string = original_string.dup
(string.to_r * 1_000_000).to_i
}
x.report("new ") {
string = original_string.dup
if string && string.start_with?(".".freeze) && string.length == 7
string[0] = ''.freeze
string.to_i
end
}
x.compare!
end
# Warming up --------------------------------------
# multiply 125.783k i/100ms
# new 146.543k i/100ms
# Calculating -------------------------------------
# multiply 1.751M (± 3.3%) i/s - 8.805M in 5.033779s
# new 2.225M (± 2.1%) i/s - 11.137M in 5.007110s
# Comparison:
# new : 2225289.7 i/s
# multiply: 1751254.2 i/s - 1.27x slower
```
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32% Faster Object#try
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Here’s the micro benchmark:
```ruby
module ActiveSupport
module NewTryable #:nodoc:
def try(*a, &b)
return unless a.empty? || respond_to?(a.first)
return public_send(*a, &b) unless a.empty?
return nil unless block_given?
return instance_eval(&b) if b.arity == 0
yield self
end
def try!(*a, &b)
return public_send(*a, &b) if !a.empty?
return nil unless block_given?
return instance_eval(&b) if b.arity == 0
yield self
end
end
end
module ActiveSupport
module OldTryable #:nodoc:
def try(*a, &b)
try!(*a, &b) if a.empty? || respond_to?(a.first)
end
def try!(*a, &b)
if a.empty? && block_given?
if b.arity == 0
instance_eval(&b)
else
yield self
end
else
public_send(*a, &b)
end
end
end
end
class FooNew
include ActiveSupport::NewTryable
def foo
end
end
class FooOld
include ActiveSupport::OldTryable
def foo
end
end
foo_new = FooNew.new
foo_old = FooOld.new
require 'benchmark/ips'
Benchmark.ips do |x|
x.report("old") { foo_old.try(:foo) }
x.report("new") { foo_new.try(:foo) }
x.compare!
end
# Warming up --------------------------------------
# old 144.178k i/100ms
# new 172.371k i/100ms
# Calculating -------------------------------------
# old 2.181M (± 8.0%) i/s - 10.813M in 5.001419s
# new 2.889M (± 7.7%) i/s - 14.479M in 5.051760s
# Comparison:
# new: 2888691.7 i/s
# old: 2180740.7 i/s - 1.32x slower
```
Also reduces memory. On https://www.codetriage.com i’m seeing 1.5% fewer object allocations per request (in object count).
Before:
Total allocated: 1014475 bytes (8525 objects)
After:
Total allocated: 1015499 bytes (8389 objects)
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I removed the argument so I should remove the conditional too.
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The test that used this was updated and it's no longer needed.
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Drop load_database_yaml and fix test
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We originally did the whole `load_database_yaml` thing because this test
wasn't cooperating and we needed to finish the namespaced rake tasks for
multiple databases.
However, it turns out that YAML can't eval ERB if you don't tell it it's
ERB so you get Pysch parse errors if you're using multi-line ERB or
ERB with conditionals. It's a hot mess.
After trying a few things and thinking it over we decided that it wasn't
worth bandaiding over, the test needed to be improved. The test was
added in #31135 to test that the env is loaded in these tasks. But it
was blowing up because we were trying to read a database name out of the
configuration - however that's not the purpose of this change. We want
to read environment files in the rake tasks, but not in the config
file.
In this PR we changed the test to test what the PR was actually fixing.
We've also deleted the `load_database_yaml` because it caused more
problems than it was worth. This should fix the issues described in
https://github.com/rails/rails/pull/32274#issuecomment-384161057. We
also had these problems at GitHub.
Co-authored-by: alimi <aibrahim2k2@gmail.com>
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Finish converting whitelist and blacklist references
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In the system test template, enter a value based on label.
However, since `label` method does not use `titleize` by default.
If generate a value including underscore, cannot find a label and the test
will fail.
```
$ ./bin/rails g scaffold user name:string phone_number:string
$ ./bin/rails t test/system/users_test.rb
E
Error:
UsersTest#test_creating_a_User:
Capybara::ElementNotFound: Unable to find field "Phone Number"
test/system/users_test.rb:18:in `block in <class:UsersTest>'
```
This removes unnecessary `titleize` so that the generated file will pass
even if the attribute contains an underscore.
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Use the HTTPS protocol for links to Edges Guides [ci skip]
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Edges Guides is now available in HTTPS, it would be better to use the HTTPS protocol directly.
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Mutation tracker should be cleared before continuing around callbacks
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`changes_applied` should be called before continuing around callback
chain. Otherwise the mutation tracker returns old value for methods like
`changed`? or `id_in_database` in around callbacks. Also methods depend
on `id_in_database`, like `update_column`, are not working in
`around_create` callbacks.
```
class Foo < ActiveRecord::Base
around_create :around_create_callback
def around_create_callback
...
yield
p id_in_database # => nil
update_column(:generated_column, generate_value) # silently fails
end
...
end
```
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* Update the comments for TimeWithZone subtraction
While reading the description/documentation comments for the subtraction method, it was confusing. While in practical usage, the returned values make sense. It seems as though the explanation could be a bit clearer.
* Removed erroneous closing parenthesis
[ci skip]
[Rob Race + Ryuta Kamizono]
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Fix numericality validator to still use value before type cast except Active Record
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Record
The purpose of fe9547b is to work type casting to value from database.
But that was caused not to use the value before type cast even except
Active Record.
There we never guarantees that the value before type cast was going to
the used in this validation, but we should not change the behavior
unless there is some particular reason.
To restore original behavior, still use the value before type cast if
`came_from_user?` is undefined (i.e. except Active Record).
Fixes #33651.
Fixes #33686.
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* Call block to #redirect_to in controller context
The documentation for ActionController::Redirecting states that a Proc
argument "will be executed in the controller's context." However,
unless #instance_eval is used (removed in 6b3ad0ca), that statement is
false for procs defined outside of the controller instance.
This commit restores the documented behavior.
Fixes #33731.
* Move test proc into a constant in another class
Per @rafaelfranca's suggestion.
[Steven Peckins + Rafael Mendonça França]
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* Add documentation for `:collation` option
The table definition supports a `:collation` option for string and text columns, but this is not documented anywhere that I could find.
I'm not sure if the "If not specified" part is accurate. From [this PR](https://github.com/rails/rails/commit/1515c4d98da3f730ef971fa5a13cad828bd9bef4), it looks like it passes `nil` and lets the database handle the collation, but I'm happy to change it if I misread the code.
[ci skip]
* FIX remove whitespace
[Nate Pinsky + Rafael Mendonça França]
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Update "Action View Form Helpers" guide
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Follow up #33523 [ci skip]
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This commit is the next work after #33523.
Also, this commit removes mention about hidden `utf8` input. Since
form helpers don't generate this input by default since #32125.
Note that I also had created PR #31972 with improvements to
"Action View Form Helpers" guide, but I'll rebase it after merging the
current PR.
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Clarify example of the test [ci skip]
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ActionDispatch::TestProcess::FixtureFile
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