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improve AR/CHANGELOG [ci skip]
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Francesco Rodriguez
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0aaf87c1e1
1 changed files with 68 additions and 44 deletions
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@ -14,7 +14,7 @@
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self.primary_key = :title
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end
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Post.find_in_batches(:start => 'My First Post') do |batch|
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Post.find_in_batches(start: 'My First Post') do |batch|
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batch.each { |post| post.author.greeting }
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end
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@ -26,15 +26,15 @@
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*Matt Jones*
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* Accept belongs_to (including polymorphic) association keys in queries
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* Accept belongs_to (including polymorphic) association keys in queries.
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The following queries are now equivalent:
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Post.where(:author => author)
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Post.where(:author_id => author)
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Post.where(author: author)
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Post.where(author_id: author)
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PriceEstimate.where(:estimate_of => treasure)
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PriceEstimate.where(:estimate_of_type => 'Treasure', :estimate_of_id => treasure)
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PriceEstimate.where(estimate_of: treasure)
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PriceEstimate.where(estimate_of_type: 'Treasure', estimate_of_id: treasure)
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*Peter Brown*
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@ -44,6 +44,7 @@
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*kennyj*
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* PostgreSQL inet and cidr types are converted to `IPAddr` objects.
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*Dan McClain*
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* PostgreSQL array type support. Any datatype can be used to create an
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@ -52,15 +53,15 @@
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To declare an array column, use the following syntax:
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create_table :table_with_arrays do |t|
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t.integer :int_array, :array => true
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t.integer :int_array, array: true
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# integer[]
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t.integer :int_array, :array => true, :length => 2
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t.integer :int_array, array: true, :length => 2
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# smallint[]
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t.string :string_array, :array => true, :length => 30
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t.string :string_array, array: true, length: 30
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# char varying(30)[]
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end
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end
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This respects any other migraion detail (limits, defaults, etc).
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This respects any other migration detail (limits, defaults, etc).
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ActiveRecord will serialize and deserialize the array columns on
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their way to and from the database.
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@ -70,13 +71,13 @@
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must have the same number of elements as its siblings).
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If the `pg_array_parser` gem is available, it will be used when
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parsing PostgreSQL's array representation
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parsing PostgreSQL's array representation.
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*Dan McClain*
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* Attribute predicate methods, such as `article.title?`, will now raise
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`ActiveModel::MissingAttributeError` if the attribute being queried for
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truthiness was not read from the database, instead of just returning false.
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truthiness was not read from the database, instead of just returning `false`.
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*Ernie Miller*
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@ -85,9 +86,13 @@
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*Konstantin Shabanov*
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* Map interval with precision to string datatype in PostgreSQL. Fixes #7518. *Yves Senn*
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* Map interval with precision to string datatype in PostgreSQL. Fixes #7518.
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* Fix eagerly loading associations without primary keys. Fixes #4976. *Kelley Reynolds*
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*Yves Senn*
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* Fix eagerly loading associations without primary keys. Fixes #4976.
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*Kelley Reynolds*
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* Rails now raise an exception when you're trying to run a migration that has an invalid
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file name. Only lower case letters, numbers, and '_' are allowed in migration's file name.
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@ -114,16 +119,18 @@
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*Dickson S. Guedes*
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* Fix time column type casting for invalid time string values to correctly return nil.
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* Fix time column type casting for invalid time string values to correctly return `nil`.
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*Adam Meehan*
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* Allow to pass Symbol or Proc into :limit option of #accepts_nested_attributes_for.
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* Allow to pass Symbol or Proc into `:limit` option of #accepts_nested_attributes_for.
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*Mikhail Dieterle*
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* ActiveRecord::SessionStore has been extracted from Active Record as `activerecord-session_store`
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gem. Please read the `README.md` file on the gem for the usage. *Prem Sichanugrist*
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gem. Please read the `README.md` file on the gem for the usage.
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*Prem Sichanugrist*
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* Fix `reset_counters` when there are multiple `belongs_to` association with the
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same foreign key and one of them have a counter cache.
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@ -259,6 +266,7 @@
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* Add `add_reference` and `remove_reference` schema statements. Aliases, `add_belongs_to`
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and `remove_belongs_to` are acceptable. References are reversible.
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Examples:
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# Create a user_id column
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@ -280,10 +288,10 @@
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* `ActiveRecord::Relation#inspect` now makes it clear that you are
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dealing with a `Relation` object rather than an array:.
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User.where(:age => 30).inspect
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User.where(age: 30).inspect
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# => <ActiveRecord::Relation [#<User ...>, #<User ...>, ...]>
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User.where(:age => 30).to_a.inspect
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User.where(age: 30).to_a.inspect
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# => [#<User ...>, #<User ...>]
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The number of records displayed will be limited to 10.
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@ -394,10 +402,14 @@
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*kennyj*
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* Add uuid datatype support to PostgreSQL adapter. *Konstantin Shabanov*
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* Add uuid datatype support to PostgreSQL adapter.
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*Konstantin Shabanov*
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* Added `ActiveRecord::Migration.check_pending!` that raises an error if
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migrations are pending. *Richard Schneeman*
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migrations are pending.
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*Richard Schneeman*
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* Added `#destroy!` which acts like `#destroy` but will raise an
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`ActiveRecord::RecordNotDestroyed` exception instead of returning `false`.
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@ -447,7 +459,7 @@
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methods which previously accepted "finder options" no longer do. For
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example this:
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Post.find(:all, :conditions => { :comments_count => 10 }, :limit => 5)
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Post.find(:all, conditions: { comments_count: 10 }, limit: 5)
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Should be rewritten in the new style which has existed since Rails 3:
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@ -455,7 +467,7 @@
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Note that as an interim step, it is possible to rewrite the above as:
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Post.all.merge(:where => { :comments_count => 10 }, :limit => 5)
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Post.all.merge(where: { comments_count: 10 }, limit: 5)
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This could save you a lot of work if there is a lot of old-style
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finder usage in your application.
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@ -465,9 +477,9 @@
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finder method. These are mostly identical to the old-style finder
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option names, except in the following cases:
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* `:conditions` becomes `:where`
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* `:include` becomes `:includes`
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* `:extend` becomes `:extending`
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* `:conditions` becomes `:where`.
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* `:include` becomes `:includes`.
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* `:extend` becomes `:extending`.
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The code to implement the deprecated features has been moved out to
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the `activerecord-deprecated_finders` gem. This gem is a dependency
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@ -482,7 +494,7 @@
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*Johannes Barre*
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* Added ability to ActiveRecord::Relation#from to accept other ActiveRecord::Relation objects
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* Added ability to ActiveRecord::Relation#from to accept other ActiveRecord::Relation objects.
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Record.from(subquery)
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Record.from(subquery, :a)
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@ -508,7 +520,7 @@
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*Marcelo Silveira*
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* Added an :index option to automatically create indexes for references
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* Added an `:index` option to automatically create indexes for references
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and belongs_to statements in migrations.
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The `references` and `belongs_to` methods now support an `index`
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@ -516,7 +528,7 @@
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that is identical to options available to the add_index method:
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create_table :messages do |t|
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t.references :person, :index => true
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t.references :person, index: true
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end
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Is the same as:
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@ -528,7 +540,7 @@
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Generators have also been updated to use the new syntax.
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[Joshua Wood]
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*Joshua Wood*
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* Added bang methods for mutating `ActiveRecord::Relation` objects.
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For example, while `foo.where(:bar)` will return a new object
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@ -617,12 +629,12 @@
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*kennyj*
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* Added support for partial indices to PostgreSQL adapter
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* Added support for partial indices to PostgreSQL adapter.
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The `add_index` method now supports a `where` option that receives a
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string with the partial index criteria.
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add_index(:accounts, :code, :where => "active")
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add_index(:accounts, :code, where: 'active')
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Generates
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@ -630,7 +642,7 @@
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*Marcelo Silveira*
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* Implemented ActiveRecord::Relation#none method
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* Implemented ActiveRecord::Relation#none method.
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The `none` method returns a chainable relation with zero records
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(an instance of the NullRelation class).
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@ -641,9 +653,11 @@
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*Juanjo Bazán*
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* Added the `ActiveRecord::NullRelation` class implementing the null
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object pattern for the Relation class. *Juanjo Bazán*
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object pattern for the Relation class.
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* Added new `:dependent => :restrict_with_error` option. This will add
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*Juanjo Bazán*
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* Added new `dependent: :restrict_with_error` option. This will add
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an error to the model, rather than raising an exception.
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The `:restrict` option is renamed to `:restrict_with_exception` to
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@ -651,20 +665,22 @@
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*Manoj Kumar & Jon Leighton*
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* Added `create_join_table` migration helper to create HABTM join tables
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* Added `create_join_table` migration helper to create HABTM join tables.
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create_join_table :products, :categories
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# =>
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# create_table :categories_products, :id => false do |td|
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# td.integer :product_id, :null => false
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# td.integer :category_id, :null => false
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# create_table :categories_products, id: false do |td|
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# td.integer :product_id, null: false
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# td.integer :category_id, null: false
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# end
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*Rafael Mendonça França*
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* The primary key is always initialized in the @attributes hash to nil (unless
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* The primary key is always initialized in the @attributes hash to `nil` (unless
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another value has been specified).
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*Aaron Paterson*
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* In previous releases, the following would generate a single query with
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an `OUTER JOIN comments`, rather than two separate queries:
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@ -695,14 +711,18 @@
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loading. Basically, don't worry unless you see a deprecation warning
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or (in future releases) an SQL error due to a missing JOIN.
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[Jon Leighton]
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*Jon Leighton*
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* Support for the `schema_info` table has been dropped. Please
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* Support for the `schema_info` table has been dropped. Please
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switch to `schema_migrations`.
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* Connections *must* be closed at the end of a thread. If not, your
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*Aaron Patterson*
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* Connections *must* be closed at the end of a thread. If not, your
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connection pool can fill and an exception will be raised.
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*Aaron Patterson*
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* Added the `ActiveRecord::Model` module which can be included in a
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class as an alternative to inheriting from `ActiveRecord::Base`:
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@ -733,6 +753,10 @@
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* PostgreSQL hstore records can be created.
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*Aaron Patterson*
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* PostgreSQL hstore types are automatically deserialized from the database.
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*Aaron Patterson*
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Please check [3-2-stable](https://github.com/rails/rails/blob/3-2-stable/activerecord/CHANGELOG.md) for previous changes.
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