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rails--rails/activesupport/CHANGELOG.md
David Heinemeier Hansson 1c275d812f Add option for class_attribute default (#29270) 
* Allow a default value to be declared for class_attribute

* Convert to using class_attribute default rather than explicit setter

* Removed instance_accessor option by mistake

* False is a valid default value

* Documentation
2017-05-29 18:01:50 +02:00

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  • Add default option to class_attribute. Before:

    class_attribute :settings self.settings = {}

    Now:

    class_attribute :settings, default: {}

    DHH

  • #singularize and #pluralize now respect uncountables for the specified locale.

    Eilis Hamilton

  • Add ActiveSupport::CurrentAttributes to provide a thread-isolated attributes singleton. Primary use case is keeping all the per-request attributes easily available to the whole system.

    DHH

  • Fix implicit coercion calculations with scalars and durations

    Previously calculations where the scalar is first would be converted to a duration of seconds but this causes issues with dates being converted to times, e.g:

    Time.zone = "Beijing"           # => Asia/Shanghai
date = Date.civil(2017, 5, 20)  # => Mon, 20 May 2017
2 * 1.day                       # => 172800 seconds
date + 2 * 1.day                # => Mon, 22 May 2017 00:00:00 CST +08:00

    Now the ActiveSupport::Duration::Scalar calculation methods will try to maintain the part structure of the duration where possible, e.g:

    Time.zone = "Beijing"           # => Asia/Shanghai
date = Date.civil(2017, 5, 20)  # => Mon, 20 May 2017
2 * 1.day                       # => 2 days
date + 2 * 1.day                # => Mon, 22 May 2017

    Fixes #29160, #28970.

    Andrew White

  • Add support for versioned cache entries. This enables the cache stores to recycle cache keys, greatly saving on storage in cases with frequent churn. Works together with the separation of #cache_key and #cache_version in Active Record and its use in Action Pack's fragment caching.

    DHH

  • Pass gem name and deprecation horizon to deprecation notifications.

    Willem van Bergen

  • Add support for :offset and :zone to ActiveSupport::TimeWithZone#change

    Andrew White

  • Add support for :offset to Time#change

    Fixes #28723.

    Andrew White

  • Add fetch_values for HashWithIndifferentAccess

    The method was originally added to Hash in Ruby 2.3.0.

    Josh Pencheon

Please check 5-1-stable for previous changes.