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minor #28980 [Messenger] If framework.messenger.buses.X.middleware is empty, it will be null (sroze)

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This PR was merged into the 4.2-dev branch.

Discussion
----------

[Messenger] If `framework.messenger.buses.X.middleware` is empty, it will be `null`

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #28945
| License       | MIT
| Doc PR        | ø

Otherwise, it would fail with the following configuration:
```yaml
framework:
    messenger:
        buses:
            events_bus:
                middleware:
#                    - 'some_commented_middleware'
```

Commits
-------

91a70fcd6f If `framework.messenger.buses.X.middleware` is empty, it will be `null`
This commit is contained in:
Nicolas Grekas 2018-10-25 15:39:52 +02:00
commit 9c8d0999b3
1 changed files with 1 additions and 1 deletions
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2
src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
View File

@ -1090,7 +1090,7 @@ class Configuration implements ConfigurationInterface
->end()
->arrayNode('middleware')
->beforeNormalization()
->ifTrue(function ($v) { return \is_string($v) || !\is_int(key($v)); })
->ifTrue(function ($v) { return \is_string($v) || (\is_array($v) && !\is_int(key($v))); })
->then(function ($v) { return array($v); })
->end()
->defaultValue(array())