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* Support not to cache `nil` for `ActiveSupport::Cache#fetch`.
cache.fetch('bar', skip_nil: true) { nil }
cache.exist?('bar') # => false
*Martin Hong*
* Add "event object" support to the notification system.
Before this change, end users were forced to create hand made artisanal
event objects on their own, like this:
ActiveSupport::Notifications.subscribe('wait') do |*args|
@event = ActiveSupport::Notifications::Event.new(*args)
end
ActiveSupport::Notifications.instrument('wait') do
sleep 1
end
@event.duration # => 1000.138
After this change, if the block passed to `subscribe` only takes one
parameter, the framework will yield an event object to the block. Now
end users are no longer required to make their own:
ActiveSupport::Notifications.subscribe('wait') do |event|
@event = event
end
ActiveSupport::Notifications.instrument('wait') do
sleep 1
end
p @event.allocations # => 7
p @event.cpu_time # => 0.256
p @event.idle_time # => 1003.2399
Now you can enjoy event objects without making them yourself. Neat!
*Aaron "t.lo" Patterson*
* Add cpu_time, idle_time, and allocations to Event
*Eileen M. Uchitelle*, *Aaron Patterson*
* RedisCacheStore: support key expiry in increment/decrement.
Pass `:expires_in` to `#increment` and `#decrement` to set a Redis EXPIRE on the key.
If the key is already set to expire, RedisCacheStore won't extend its expiry.
Rails.cache.increment("some_key", 1, expires_in: 2.minutes)
*Jason Lee*
* Allow Range#=== and Range#cover? on Range
`Range#cover?` can now accept a range argument like `Range#include?` and
`Range#===`. `Range#===` works correctly on Ruby 2.6. `Range#include?` is moved
into a new file, with these two methods.
*Requiring active_support/core_ext/range/include_range is now deprecated.*
*Use `require "active_support/core_ext/range/compare_range"` instead.*
*utilum*
* Add `index_with` to Enumerable.
Allows creating a hash from an enumerable with the value from a passed block
or a default argument.
%i( title body ).index_with { |attr| post.public_send(attr) }
# => { title: "hey", body: "what's up?" }
%i( title body ).index_with(nil)
# => { title: nil, body: nil }
Closely linked with `index_by`, which creates a hash where the keys are extracted from a block.
*Kasper Timm Hansen*
* Fix bug where `ActiveSupport::Timezone.all` would fail when tzinfo data for
any timezone defined in `ActiveSupport::TimeZone::MAPPING` is missing.
*Dominik Sander*
* Redis cache store: `delete_matched` no longer blocks the Redis server.
(Switches from evaled Lua to a batched SCAN + DEL loop.)
*Gleb Mazovetskiy*
* Fix bug where `ActiveSupport::Cache` will massively inflate the storage
size when compression is enabled (which is true by default). This patch
does not attempt to repair existing data: please manually flush the cache
to clear out the problematic entries.
*Godfrey Chan*
* Fix bug where `URI.unscape` would fail with mixed Unicode/escaped character input:
URI.unescape("\xe3\x83\x90") # => "バ"
URI.unescape("%E3%83%90") # => "バ"
URI.unescape("\xe3\x83\x90%E3%83%90") # => Encoding::CompatibilityError
*Ashe Connor*, *Aaron Patterson*
* Add `before?` and `after?` methods to `Date`, `DateTime`,
`Time`, and `TimeWithZone`.
*Nick Holden*
* `ActiveSupport::Inflector#ordinal` and `ActiveSupport::Inflector#ordinalize` now support
translations through I18n.
# locale/fr.rb
{
fr: {
number: {
nth: {
ordinals: lambda do |_key, number:, **_options|
if number.to_i.abs == 1
'er'
else
'e'
end
end,
ordinalized: lambda do |_key, number:, **_options|
"#{number}#{ActiveSupport::Inflector.ordinal(number)}"
end
}
}
}
}
*Christian Blais*
* Add `:private` option to ActiveSupport's `Module#delegate`
in order to delegate methods as private:
class User < ActiveRecord::Base
has_one :profile
delegate :date_of_birth, to: :profile, private: true
def age
Date.today.year - date_of_birth.year
end
end
# User.new.age # => 29
# User.new.date_of_birth
# => NoMethodError: private method `date_of_birth' called for #<User:0x00000008221340>
*Tomas Valent*
* `String#truncate_bytes` to truncate a string to a maximum bytesize without
breaking multibyte characters or grapheme clusters like 👩👩👦👦.
*Jeremy Daer*
* `String#strip_heredoc` preserves frozenness.
"foo".freeze.strip_heredoc.frozen? # => true
Fixes that frozen string literals would inadvertently become unfrozen:
# frozen_string_literal: true
foo = <<-MSG.strip_heredoc
la la la
MSG
foo.frozen? # => false !??
*Jeremy Daer*
* Rails 6 requires Ruby 2.4.1 or newer.
*Jeremy Daer*
* Adds parallel testing to Rails.
Parallelize your test suite with forked processes or threads.
*Eileen M. Uchitelle*, *Aaron Patterson*
Please check [5-2-stable](https://github.com/rails/rails/blob/5-2-stable/activesupport/CHANGELOG.md) for previous changes.
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