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* Fixed backward compatibility isues introduced in 326e652
Empty Hash or Array should not present in serialization result
{a: []}.to_query # => ""
{a: {}}.to_query # => ""
For more info see #14948.
*Bogdan Gusiev*
* Add `SecureRandom::uuid_v3` and `SecureRandom::uuid_v5` to support stable
UUID fixtures on PostgreSQL.
*Roderick van Domburg*
* Fixed `ActiveSupport::Duration#eql?` so that `1.second.eql?(1.second)` is
true.
This fixes the current situation of:
1.second.eql?(1.second) #=> false
`eql?` also requires that the other object is an `ActiveSupport::Duration`.
This requirement makes `ActiveSupport::Duration`'s behavior consistent with
the behavior of Ruby's numeric types:
1.eql?(1.0) #=> false
1.0.eql?(1) #=> false
1.second.eql?(1) #=> false (was true)
1.eql?(1.second) #=> false
{ 1 => "foo", 1.0 => "bar" }
#=> { 1 => "foo", 1.0 => "bar" }
{ 1 => "foo", 1.second => "bar" }
# now => { 1 => "foo", 1.second => "bar" }
# was => { 1 => "bar" }
And though the behavior of these hasn't changed, for reference:
1 == 1.0 #=> true
1.0 == 1 #=> true
1 == 1.second #=> true
1.second == 1 #=> true
*Emily Dobervich*
* `ActiveSupport::SafeBuffer#prepend` acts like `String#prepend` and modifies
instance in-place, returning self. `ActiveSupport::SafeBuffer#prepend!` is
deprecated.
*Pavel Pravosud*
* `HashWithIndifferentAccess` better respects `#to_hash` on objects it's
given. In particular, `.new`, `#update`, `#merge`, `#replace` all accept
objects which respond to `#to_hash`, even if those objects are not Hashes
directly.
*Peter Jaros*
* Deprecate `Class#superclass_delegating_accessor`, use `Class#class_attribute` instead.
*Akshay Vishnoi*
* Ensure classes which `include Enumerable` get `#to_json` in addition to
`#as_json`.
*Sammy Larbi*
* Change the signature of `fetch_multi` to return a hash rather than an
array. This makes it consistent with the output of `read_multi`.
*Parker Selbert*
* Introduce `Concern#class_methods` as a sleek alternative to clunky
`module ClassMethods`. Add `Kernel#concern` to define at the toplevel
without chunky `module Foo; extend ActiveSupport::Concern` boilerplate.
# app/models/concerns/authentication.rb
concern :Authentication do
included do
after_create :generate_private_key
end
class_methods do
def authenticate(credentials)
# ...
end
end
def generate_private_key
# ...
end
end
# app/models/user.rb
class User < ActiveRecord::Base
include Authentication
end
*Jeremy Kemper*
Please check [4-1-stable](https://github.com/rails/rails/blob/4-1-stable/activesupport/CHANGELOG.md) for previous changes.
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