diff options
| -rw-r--r-- | guides/source/4_2_release_notes.md | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/guides/source/4_2_release_notes.md b/guides/source/4_2_release_notes.md index 848a125bbc..737922c283 100644 --- a/guides/source/4_2_release_notes.md +++ b/guides/source/4_2_release_notes.md @@ -47,7 +47,8 @@ the object itself. The new [Global ID](https://github.com/rails/globalid) library builds URIs and looks up the objects they reference. Passing Active Record objects as job arguments just works by using Global ID internally. -For example, if `trashable` is an AR this job runs just fine +For example, if `trashable` is an Active Record object, then this job runs +just fine with no serialization involved: ```ruby class TrashableCleanupJob < ActiveJob::Base @@ -57,8 +58,6 @@ class TrashableCleanupJob < ActiveJob::Base end ``` -with no serialization involved. - See the [Active Job Basics](active_job_basics.html) guide for more information. @@ -80,9 +79,9 @@ on similar calls, skipping most of the query-generation work on subsequent calls. For more details, please refer to [Aaron Patterson's blog post](http://tenderlovemaking.com/2014/02/19/adequaterecord-pro-like-activerecord.html). -Active Record will automatically take advantage of this feature on the +Active Record will automatically take advantage of this feature on supported operations without any user involvement or code changes. Here are -some examples of the supported operations: +some examples of supported operations: ```ruby Post.find(1) # First call generates and cache the prepared statement @@ -96,10 +95,10 @@ post.comments(true) ``` It's important to highlight that, as the examples above suggest, the prepared -statements do not cache the values passed in the method calls, they rather +statements do not cache the values passed in the method calls; rather, they have placeholders for them. -The caching is not used in the following scenarios: +Caching is not used in the following scenarios: - The model has a default scope - The model uses single table inheritance @@ -119,7 +118,7 @@ The caching is not used in the following scenarios: ### Web Console -New applications generated from Rails 4.2 now come with the [Web +New applications generated with Rails 4.2 now come with the [Web Console](https://github.com/rails/web-console) gem by default. Web Console adds an interactive Ruby console on every error page and provides a `console` view and controller helpers. @@ -167,9 +166,9 @@ The following changes may require immediate action upon upgrade. ### `render` with a String Argument Previously, calling `render "foo/bar"` in a controller action was equivalent to -`render file: "foo/bar"`. In Rails 4.2, this has been changed to mean `render template: "foo/bar"` -instead. If you need to render a file, please change your code to use the -explicit form (`render file: "foo/bar"`) instead. +`render file: "foo/bar"`. In Rails 4.2, this has been changed to mean +`render template: "foo/bar"` instead. If you need to render a file, please +change your code to use the explicit form (`render file: "foo/bar"`) instead. ### `respond_with` / Class-Level `respond_to` @@ -210,8 +209,9 @@ end Due to a [change in Rack](https://github.com/rack/rack/commit/28b014484a8ac0bbb388e7eaeeef159598ec64fc), `rails server` now listens on `localhost` instead of `0.0.0.0` by default. This -should have minimal impact on the standard development workflow as both http://127.0.0.1:3000 -and http://localhost:3000 will continue to work as before on your own machine. +should have minimal impact on the standard development workflow as both +http://127.0.0.1:3000 and http://localhost:3000 will continue to work as before +on your own machine. However, with this change you will no longer be able to access the Rails server from a different machine, for example if your development environment @@ -229,8 +229,8 @@ built upon [Loofah](https://github.com/flavorjones/loofah) and [Nokogiri](https://github.com/sparklemotion/nokogiri). The new sanitizer is more secure and its sanitization is more powerful and flexible. -Due to the new algorithm, sanitized output changes for certain pathological -inputs. +Due to the new algorithm, the sanitized output may be different for certain +pathological inputs. If you have a particular need for the exact output of the old sanitizer, you can add the [rails-deprecated_sanitizer](https://github.com/kaspth/rails-deprecated_sanitizer) @@ -663,8 +663,8 @@ Please refer to the [Changelog][active-record] for detailed changes. current environment. ([Commit](https://github.com/rails/rails/commit/e2f232aba15937a4b9d14bd91e0392c6d55be58d)) -* Introduced `ActiveRecord::Base#validate!` that raises `ActiveRecord::RecordInvalid` if the - record is invalid. +* Introduced `ActiveRecord::Base#validate!` that raises + `ActiveRecord::RecordInvalid` if the record is invalid. ([Pull Request](https://github.com/rails/rails/pull/8639)) * Introduced `validate` as an alias for `valid?`. @@ -704,8 +704,8 @@ Please refer to the [Changelog][active-record] for detailed changes. `SELECT`s. ([Pull Request](https://github.com/rails/rails/pull/15866)) -* `ActiveRecord::Base#reflections` now returns a hash with string keys instead of symbol keys. - ([Pull Request](https://github.com/rails/rails/pull/17718)) +* `ActiveRecord::Base#reflections` now returns a hash with string keys instead + of symbol keys. ([Pull Request](https://github.com/rails/rails/pull/17718)) * The `references` method in migrations now supports a `type` option for specifying the type of the foreign key (e.g. `:uuid`). |