Deprecation: Doctrine\ORM\Mapping\UnderscoreNamingStrategy without making it number aware is deprecated

Question

I\'m using Symfony 4.3.8 and I can\'t find any information about thoses deprecations :

User Deprecated: Creating Doctrine\\ORM\\Mapping\\UnderscoreNamingS

Answer 1

For those who works with symfony4.3 and still want this warning disapear you can add add new new service defintion in service.yaml

    custom_doctrine_orm_naming_strategy_underscore:
    class: Doctrine\ORM\Mapping\UnderscoreNamingStrategy
    arguments:
        - 0
        - true

and change the configuration of doctrine.yaml like this:

orm:
    naming_strategy: custom_doctrine_orm_naming_strategy_underscore

before going straight forward committing this change I would suggest you to verify that passing true to the Doctrine\ORM\Mapping\UnderscoreNamingStrategy doesn't affect the expected behavior of your code.

// class UnderscoreNamingStrategy
/**
 * Underscore naming strategy construct.
 *
 * @param int $case CASE_LOWER | CASE_UPPER
 */
public function __construct($case = CASE_LOWER, bool $numberAware = false)
{
    if (! $numberAware) {
        @trigger_error(
            'Creating ' . self::class . ' without making it number aware is deprecated and will be removed in Doctrine ORM 3.0.',
            E_USER_DEPRECATED
        );
    }

    $this->case    = $case;
    $this->pattern = $numberAware ? self::NUMBER_AWARE_PATTERN : self::DEFAULT_PATTERN;
}

Quick hint:

passing true to the c'tor will make the class use the NUMBER_AWARE_PATTERN instead of the DEFAULT_PATTERN

private const DEFAULT_PATTERN      = '/(?<=[a-z])([A-Z])/';
private const NUMBER_AWARE_PATTERN = '/(?<=[a-z0-9])([A-Z])/';