forked from https://github.com/symfony/symfony
05fe6a939a
This PR was merged into the 4.3-dev branch.
Discussion
----------
[DI] add ReverseContainer: a locator that turns services back to their ids
| Q | A
| ------------- | ---
| Branch? | master
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | -
| License | MIT
| Doc PR | -
This PR introduces a `ReverseContainer`, which is a class you can type hint for to get it as a service.
When you have a `ReverseContainer` at hand, you can then use it to know the service id of an object (if the object is not found, `null` is returned):
`$id = $reverseContainer->getId($someObject);`
You can also call `$reverseContainer->getService($id);` and get the service in return.
To be reversible, a service must either be public or be tagged with `container.reversible`.
I'm using this feature to serialize service references in a message, then send them through a Messenger bus, allowing the handler on the other side to use that referenced service to process the message. More specifically, my use case is sending messages for early cache expiration events through a bus and have a worker compute the soon-to-expire value in the background. The reversible services are the computation callbacks and the cache pools I need to compute the value for.
Commits
-------
|
||
|---|---|---|
| .composer | ||
| .github | ||
| src/Symfony | ||
| .appveyor.yml | ||
| .editorconfig | ||
| .gitignore | ||
| .php_cs.dist | ||
| .travis.yml | ||
| CHANGELOG-4.0.md | ||
| CHANGELOG-4.1.md | ||
| CHANGELOG-4.2.md | ||
| CODE_OF_CONDUCT.md | ||
| composer.json | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS.md | ||
| LICENSE | ||
| link | ||
| phpunit | ||
| phpunit.xml.dist | ||
| README.md | ||
| UPGRADE-4.0.md | ||
| UPGRADE-4.1.md | ||
| UPGRADE-4.2.md | ||
| UPGRADE-4.3.md | ||
| UPGRADE-5.0.md | ||
Symfony is a PHP framework for web applications and a set of reusable PHP components. Symfony is used by thousands of web applications (including BlaBlaCar.com and Spotify.com) and most of the popular PHP projects (including Drupal and Magento).
Installation
- Install Symfony with Composer (see requirements details).
- Symfony follows the semantic versioning strictly, publishes "Long Term Support" (LTS) versions and has a release process that is predictable and business-friendly.
Documentation
- Read the Getting Started guide if you are new to Symfony.
- Try the Symfony Demo application to learn Symfony in practice.
- Master Symfony with the Guides and Tutorials, the Components docs and the Best Practices reference.
Community
- Join the Symfony Community and meet other members at the Symfony events.
- Get Symfony support on Stack Overflow, Slack, IRC, etc.
- Follow us on GitHub, Twitter and Facebook.
- Read our Code of Conduct and meet the CARE Team
Contributing
Symfony is an Open Source, community-driven project with thousands of contributors. Join them contributing code or contributing documentation.
Security Issues
If you discover a security vulnerability within Symfony, please follow our disclosure procedure.
About Us
Symfony development is sponsored by SensioLabs, led by the Symfony Core Team and supported by Symfony contributors.