3df05e0877
This PR was merged into the 4.3-dev branch.
Discussion
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[DoctrineBridge] Deprecated implicit optimization in DoctrineChoiceLoader
| Q | A
| ------------- | ---
| Branch? | master
| Bug fix? | no
| New feature? | no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks? | no <!-- see https://symfony.com/bc -->
| Deprecations? | yes <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass? | yes <!-- please add some, will be required by reviewers -->
| Fixed tickets | ~
| License | MIT
| Doc PR | ~
#EUFOSSA
Big thanks to @stof for the help with writing the test!
## Description
It happens that the `IdReader` is created by the `DoctrineType` and cached for each entity class case.
But the type already resolves whether or not it should use it, only when we can optimize query thanks to a single id field when defining the `choice_value` option: https://github.com/symfony/symfony/blob/master/src/Symfony/Bridge/Doctrine/Form/Type/DoctrineType.php#L188.
This PR is a first step to optimize the choice loading process.
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