rails--rails/actionpack
Daniel Colson 754ed1f45b
Restore the behavior of journey root node methods
https://github.com/rails/rails/pull/39935 changed the behavior of
`Path::Pattern#spec` and `Route#ast` to return an `Ast` rather than the
root `Node`. After eager loading, however, we clear out the `Ast` to
limit retained memory and these methods return `nil`.

While these methods are not public and they aren't used internally after
eager loading, having them return `nil` makes it difficult for
applications that had been using these methods to get access to the
root `Node`.

This commit restores the behavior of these two methods to return the
root `Node`. The `Ast` is still available via `Path::Pattern#ast`, and
we still clear it out after eager loading.

Now that spec is a `Node` and not an `Ast` masquerading as one, we can
get rid of the delegate methods on `Ast.

Since `Route#ast` now returns the root `Node`, the newly added
`Route#ast_root` is no longer necessary so I've removed it.

I also removed the unused `@decorated_ast` method, which should have
been removed in https://github.com/rails/rails/pull/39935.
2021-08-12 09:51:38 -04:00
..
bin
lib Restore the behavior of journey root node methods 2021-08-12 09:51:38 -04:00
test Restore the behavior of journey root node methods 2021-08-12 09:51:38 -04:00
CHANGELOG.md Remove redundant whitespace from actionpack/CHANGELOG.md 2021-07-26 09:22:36 +09:00
MIT-LICENSE
README.rdoc Update ActionPack documentation to remove views mention 2021-04-22 19:00:45 -07:00
Rakefile
actionpack.gemspec Bump rack to remove ssl? override 2021-06-01 11:15:14 -07:00

README.rdoc

= Action Pack -- From request to response

Action Pack is a framework for handling and responding to web requests. It
provides mechanisms for *routing* (mapping request URLs to actions), defining
*controllers* that implement actions, and generating responses. In short, Action Pack
provides the controller layer in the MVC paradigm.

It consists of several modules:

* Action Dispatch, which parses information about the web request, handles
  routing as defined by the user, and does advanced processing related to HTTP
  such as MIME-type negotiation, decoding parameters in POST, PATCH, or PUT bodies,
  handling HTTP caching logic, cookies and sessions.

* Action Controller, which provides a base controller class that can be
  subclassed to implement filters and actions to handle requests. The result
  of an action is typically content generated from views.

With the Ruby on Rails framework, users only directly interface with the
Action Controller module. Necessary Action Dispatch functionality is activated
by default and Action View rendering is implicitly triggered by Action
Controller. However, these modules are designed to function on their own and
can be used outside of Rails.

You can read more about Action Pack in the {Action Controller Overview}[https://guides.rubyonrails.org/action_controller_overview.html] guide.

== Download and installation

The latest version of Action Pack can be installed with RubyGems:

  $ gem install actionpack

Source code can be downloaded as part of the Rails project on GitHub:

* https://github.com/rails/rails/tree/main/actionpack


== License

Action Pack is released under the MIT license:

* https://opensource.org/licenses/MIT


== Support

API documentation is at:

* https://api.rubyonrails.org

Bug reports for the Ruby on Rails project can be filed here:

* https://github.com/rails/rails/issues

Feature requests should be discussed on the rails-core mailing list here:

* https://discuss.rubyonrails.org/c/rubyonrails-core