forked from https://github.com/symfony/symfony
71873fc770
This PR was merged into the 4.4 branch.
Discussion
----------
[DI] Add ability to choose behavior of decorations on non existent decorated services
| Q | A
| ------------- | ---
| Branch? | 4.4
| Bug fix? | no
| New feature? | yes
| Deprecations? | no
| Tickets | #33522
| License | MIT
| Doc PR | https://github.com/symfony/symfony-docs/pull/12442
# Handling decorations on non existent decorated services
Handle decorations on non existent decorated services by either throwing the service not found exception, silently ignoring services (decorator & decorated) all together or leave the decorated service to null (current behavior)
Something almost similar to how missing services as parameters are handles.
## Yaml configuration
```yaml
decorator:
decorates: decorated
decoration_on_invalid: ignore
```
Available values: `exception`, `ignore`, `null`. `exception` if nothing is specified.
## Xml configuration
```xml
<service id="decorator" decorates="decorated" decoration-on-invalid="ignore" />
```
Available values: `exception`, `ignore`, `null`. `exception` if nothing is specified.
## Behavior
- `exception`: Throws a `ServiceNotFoundException` telling that the decorator's dependency is missing
- `ignore`: Remove decorator definition. Decorator and decorated will not be available at all.
- `null`: Keep decorator but set decorated to null. Therefore, decorator `__construct` should be written with a nullable decorated dependency (`public function __contruct(?DecoratedInterface $decorated) {}`) and check should be done in other methods
Commits
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| .github | ||
| src/Symfony | ||
| .appveyor.yml | ||
| .editorconfig | ||
| .gitignore | ||
| .php_cs.dist | ||
| .travis.yml | ||
| CHANGELOG-4.0.md | ||
| CHANGELOG-4.1.md | ||
| CHANGELOG-4.2.md | ||
| CHANGELOG-4.3.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-4.4.md | ||
| UPGRADE-5.0.md | ||
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