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Diffstat (limited to 'activerecord/CHANGELOG.md')
-rw-r--r-- | activerecord/CHANGELOG.md | 88 |
1 files changed, 87 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 3328f80fdd..4f4e087acd 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,5 +1,91 @@ ## Rails 4.0.0 (unreleased) ## +* Allow blocks for `count` with `ActiveRecord::Relation`, to work similar as + `Array#count`: + + Person.where("age > 26").count { |person| gender == 'female' } + + *Chris Finne & Carlos Antonio da Silva* + +* Added support to `CollectionAssociation#delete` for passing `fixnum` + or `string` values as record ids. This finds the records responding + to the `id` and executes delete on them. + + class Person < ActiveRecord::Base + has_many :pets + end + + person.pets.delete("1") # => [#<Pet id: 1>] + person.pets.delete(2, 3) # => [#<Pet id: 2>, #<Pet id: 3>] + + *Francesco Rodriguez* + +* Deprecated most of the 'dynamic finder' methods. All dynamic methods + except for `find_by_...` and `find_by_...!` are deprecated. Here's + how you can rewrite the code: + + * `find_all_by_...` can be rewritten using `where(...)` + * `find_last_by_...` can be rewritten using `where(...).last` + * `scoped_by_...` can be rewritten using `where(...)` + * `find_or_initialize_by_...` can be rewritten using + `where(...).first_or_initialize` + * `find_or_create_by_...` can be rewritten using + `where(...).first_or_create` + * `find_or_create_by_...!` can be rewritten using + `where(...).first_or_create!` + + The implementation of the deprecated dynamic finders has been moved + to the `active_record_deprecated_finders` gem. See below for details. + + *Jon Leighton* + +* Deprecated the old-style hash based finder API. This means that + methods which previously accepted "finder options" no longer do. For + example this: + + Post.find(:all, :conditions => { :comments_count => 10 }, :limit => 5) + + Should be rewritten in the new style which has existed since Rails 3: + + Post.where(comments_count: 10).limit(5) + + Note that as an interim step, it is possible to rewrite the above as: + + Post.scoped(:where => { :comments_count => 10 }, :limit => 5) + + This could save you a lot of work if there is a lot of old-style + finder usage in your application. + + Calling `Post.scoped(options)` is a shortcut for + `Post.scoped.merge(options)`. `Relation#merge` now accepts a hash of + options, but they must be identical to the names of the equivalent + finder method. These are mostly identical to the old-style finder + option names, except in the following cases: + + * `:conditions` becomes `:where` + * `:include` becomes `:includes` + * `:extend` becomes `:extending` + + The code to implement the deprecated features has been moved out to + the `active_record_deprecated_finders` gem. This gem is a dependency + of Active Record in Rails 4.0. It will no longer be a dependency + from Rails 4.1, but if your app relies on the deprecated features + then you can add it to your own Gemfile. It will be maintained by + the Rails core team until Rails 5.0 is released. + + *Jon Leighton* + +* It's not possible anymore to destroy a model marked as read only. + + *Johannes Barre* + +* Added ability to ActiveRecord::Relation#from to accept other ActiveRecord::Relation objects + + Record.from(subquery) + Record.from(subquery, :a) + + *Radoslav Stankov* + * Added custom coders support for ActiveRecord::Store. Now you can set your custom coder like this: @@ -633,7 +719,7 @@ has_one :account end - user.build_account{ |a| a.credit_limit => 100.0 } + user.build_account{ |a| a.credit_limit = 100.0 } The block is called after the instance has been initialized. *Andrew White* |