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Diffstat (limited to 'guides/source/5_0_release_notes.md')
| -rw-r--r-- | guides/source/5_0_release_notes.md | 78 |
1 files changed, 65 insertions, 13 deletions
diff --git a/guides/source/5_0_release_notes.md b/guides/source/5_0_release_notes.md index 638547565c..8bd2074e82 100644 --- a/guides/source/5_0_release_notes.md +++ b/guides/source/5_0_release_notes.md @@ -37,9 +37,20 @@ Major Features -------------- ### Action Cable -[Pull Request](https://github.com/rails/rails/pull/22586) -ToDo... +Action Cable is a new framework in Rails 5. It seamlessly integrates +[WebSockets](https://en.wikipedia.org/wiki/WebSocket) with the rest of your +Rails application. + +Action Cable allows for real-time features to be written in Ruby in the +same style and form as the rest of your Rails application, while still being +performant and scalable. It's a full-stack offering that provides both a +client-side JavaScript framework and a server-side Ruby framework. You have +access to your full domain model written with Active Record or your ORM of +choice. + +See the [Active Cable Overview](action_cable_overview.html) guide for more +information. ### Rails API [Pull Request](https://github.com/rails/rails/pull/19832) @@ -48,9 +59,9 @@ ToDo... ### Active Record attributes API -Defines an attribute with a type on a model. It will override the type of existing attributes if needed. +Defines an attribute with a type on a model. It will override the type of existing attributes if needed. This allows control over how values are converted to and from SQL when assigned to a model. -It also changes the behavior of values passed to ActiveRecord::Base.where, which lets use our domain objects across much of Active Record, +It also changes the behavior of values passed to `ActiveRecord::Base.where`, which lets use our domain objects across much of Active Record, without having to rely on implementation details or monkey patching. Some things that you can achieve with this: @@ -80,7 +91,7 @@ class StoreListing < ActiveRecord::Base attribute :price_in_cents, :integer # custom type attribute :my_string, :string, default: "new default" # default value attribute :my_default_proc, :datetime, default: -> { Time.now } # default value - attribute :field_without_db_column, :integer, array: true + attribute :field_without_db_column, :integer, array: true end # after @@ -96,22 +107,22 @@ model.attributes #=> {field_without_db_column: [1, 2, 3]} You can define your own custom types, as long as they respond to the methods defined on the value type. The method +deserialize+ or +cast+ will be called on your type object, with raw input from the -database or from your controllers. This is useful, for example, when doing custom conversion, +database or from your controllers. This is useful, for example, when doing custom conversion, like Money data. **Querying:** When `ActiveRecord::Base.where` is called, it will use the type defined by the model class to convert the value to SQL, -calling +serialize+ on your type object. +calling +serialize+ on your type object. -This gives the objects ability to specify, how to convert values when performing SQL queries. +This gives the objects ability to specify, how to convert values when performing SQL queries. **Dirty Tracking:** The type of an attribute is given the opportunity to change how dirty -tracking is performed. - +tracking is performed. + See its [documentation](http://api.rubyonrails.org/classes/ActiveRecord/Attributes/ClassMethods.html) for a detailed write up. @@ -209,6 +220,15 @@ Please refer to the [Changelog][railties] for detailed changes. ([commit](https://github.com/rails/rails/commit/b04d07337fd7bc17e88500e9d6bcd361885a45f8)) +* Added `--skip-action-mailer` to skip Action Mailer while generating new app. + ([Pull Request](https://github.com/rails/rails/pull/18288)) + +* Removed `tmp/sessions` directory and the clear rake task associated with it. + ([Pull Request](https://github.com/rails/rails/pull/18314)) + +* Changed `_form.html.erb` generated by scaffold generator to use local variables. + ([Pull Request](https://github.com/rails/rails/pull/13434)) + Action Pack ----------- @@ -371,6 +391,9 @@ Please refer to the [Changelog][action-pack] for detailed changes. at the controller level. ([Pull Request](https://github.com/rails/rails/pull/24866)) +* Discarded flash messages get removed before storing into session. + ([Pull Request](https://github.com/rails/rails/pull/18721)) + Action View ------------- @@ -413,6 +436,9 @@ Please refer to the [Changelog][action-view] for detailed changes. button on submit to prevent double submits. ([Pull Request](https://github.com/rails/rails/pull/21135)) +* Partial template name no longer has to be a valid Ruby identifier. + ([commit](https://github.com/rails/rails/commit/da9038e)) + Action Mailer ------------- @@ -507,6 +533,9 @@ Please refer to the [Changelog][active-record] for detailed changes. * Removed support for PostgreSQL versions below 9.1. ([Pull Request](https://github.com/rails/rails/pull/23434)) +* Removed support for `activerecord-deprecated_finders` gem. + ([commit](https://github.com/rails/rails/commit/78dab2a8569408658542e462a957ea5a35aa4679)) + ### Deprecations * Deprecated passing a class as a value in a query. Users should pass strings @@ -671,10 +700,24 @@ Please refer to the [Changelog][active-record] for detailed changes. with comments stored in database metadata for PostgreSQL & MySQL. ([Pull Request](https://github.com/rails/rails/pull/22911)) -* Added prepared statements support to `mysql2` adapter, for mysql2 0.4.4+, - Previously this was only supported on the deprecated `mysql` legacy adapter. +* Added prepared statements support to `mysql2` adapter, for mysql2 0.4.4+, + Previously this was only supported on the deprecated `mysql` legacy adapter. To enable, set `prepared_statements: true` in config/database.yml. - ([Pull Request](https://github.com/rails/rails/pull/23461)) + ([Pull Request](https://github.com/rails/rails/pull/23461)) + +* Added ability to call `ActionRecord::Relation#update` on relation objects + which will run validations on callbacks on all objects in the relation. + ([Pull Request](https://github.com/rails/rails/pull/11898)) + +* Added `:touch` option to the `save` method so that records can be saved without + updating timestamps. + ([Pull Request](https://github.com/rails/rails/pull/18225)) + +* Added expression indexes and operator classes support for PostgreSQL. + ([commit](https://github.com/rails/rails/commit/edc2b7718725016e988089b5fb6d6fb9d6e16882)) + +* Added `:index_errors` option to add indexes to errors of nested attributes. + ([Pull Request](https://github.com/rails/rails/pull/19686)) Active Model ------------ @@ -691,6 +734,9 @@ Please refer to the [Changelog][active-model] for detailed changes. [activemodel-serializers-xml](https://github.com/rails/activemodel-serializers-xml) gem. ([Pull Request](https://github.com/rails/rails/pull/21161)) +* Removed `ActionController::ModelNaming` module. + ([Pull Request](https://github.com/rails/rails/pull/18194)) + ### Deprecations * Deprecated returning `false` as a way to halt Active Model and @@ -797,6 +843,9 @@ Please refer to the [Changelog][active-support] for detailed changes. * Removed deprecated `ThreadSafe::Cache`. Use `Concurrent::Map` instead. ([Pull Request](https://github.com/rails/rails/pull/21679)) +* Removed `Object#itself` as it is implemented in Ruby 2.2. + ([Pull Request](https://github.com/rails/rails/pull/18244)) + ### Deprecations * Deprecated `MissingSourceFile` in favor of `LoadError`. @@ -918,6 +967,9 @@ Please refer to the [Changelog][active-support] for detailed changes. * `ActiveSupport::Duration` now supports ISO8601 formatting and parsing. ([Pull Request](https://github.com/rails/rails/pull/16917)) +* Added ability to `TaggedLogging` to allow loggers to be instantiated multiple + times so that they don't share tags with each other. + ([Pull Request](https://github.com/rails/rails/pull/9065)) Credits ------- |