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<?php
declare(strict_types=1);
namespace Doctrine\ORM\Mapping;
use function preg_replace;
use function str_contains;
use function strrpos;
use function strtolower;
use function strtoupper;
use function substr;
use const CASE_LOWER;
use const CASE_UPPER;
/**
* Naming strategy implementing the underscore naming convention.
* Converts 'MyEntity' to 'my_entity' or 'MY_ENTITY'.
*
* @link www.doctrine-project.org
*/
class UnderscoreNamingStrategy implements NamingStrategy
{
/**
* Underscore naming strategy construct.
*
* @param int $case CASE_LOWER | CASE_UPPER
*/
public function __construct(private int $case = CASE_LOWER)
{
}
/** @return int CASE_LOWER | CASE_UPPER */
public function getCase(): int
{
return $this->case;
}
/**
* Sets string case CASE_LOWER | CASE_UPPER.
* Alphabetic characters converted to lowercase or uppercase.
*/
public function setCase(int $case): void
{
$this->case = $case;
}
public function classToTableName(string $className): string
{
if (str_contains($className, '\\')) {
$className = substr($className, strrpos($className, '\\') + 1);
}
return $this->underscore($className);
}
public function propertyToColumnName(string $propertyName, string $className): string
{
return $this->underscore($propertyName);
}
public function embeddedFieldToColumnName(
string $propertyName,
string $embeddedColumnName,
string $className,
string $embeddedClassName,
): string {
return $this->underscore($propertyName) . '_' . $embeddedColumnName;
}
public function referenceColumnName(): string
{
return $this->case === CASE_UPPER ? 'ID' : 'id';
}
public function joinColumnName(string $propertyName, string $className): string
{
return $this->underscore($propertyName) . '_' . $this->referenceColumnName();
}
public function joinTableName(
string $sourceEntity,
string $targetEntity,
string $propertyName,
): string {
return $this->classToTableName($sourceEntity) . '_' . $this->classToTableName($targetEntity);
}
public function joinKeyColumnName(
string $entityName,
string|null $referencedColumnName,
): string {
return $this->classToTableName($entityName) . '_' .
($referencedColumnName ?: $this->referenceColumnName());
}
private function underscore(string $string): string
{
$string = preg_replace('/(?<=[a-z0-9])([A-Z])/', '_$1', $string);
if ($this->case === CASE_UPPER) {
return strtoupper($string);
}
return strtolower($string);
}
}
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