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<?php declare(strict_types=1); |
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namespace EdmondsCommerce\DoctrineStaticMeta\Schema; |
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use Doctrine\ORM\EntityManagerInterface; |
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/** |
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* @see http://mysql.rjweb.org/doc.php/uuid |
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* @see https://mysqlserverteam.com/mysql-8-0-uuid-support/ |
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* |
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* This class handles ensuring that we have functions for converting to and from binary UUID formats in MySQL |
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* |
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* In MySQL8, these functions come built in, for below this version though we need to make our own |
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* |
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* NOTE - the native mysql 8 functions take a second parameter of true to create ordered UUIDs. The polyfill will |
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* always create ordered UUIDs |
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* |
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*/ |
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class UuidFunctionPolyfill |
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{ |
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public const UUID_TO_BIN = 'UUID_TO_BIN'; |
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public const BIN_TO_UUID = 'BIN_TO_UUID'; |
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/** |
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* @var \Doctrine\DBAL\Connection |
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*/ |
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private $conn; |
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/** |
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* @var string |
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*/ |
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private $dbName; |
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public function __construct(EntityManagerInterface $entityManager) |
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{ |
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$this->conn = $entityManager->getConnection(); |
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$this->dbName = $entityManager->getConnection()->getParams()['dbname']; |
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} |
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public function run(): void |
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{ |
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if (\ts\stringStartsWith($this->getVersion(), '8')) { |
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return; |
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} |
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$this->checkProcedureExists(self::UUID_TO_BIN) ?: $this->createProcedureUuidToBin(); |
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$this->checkProcedureExists(self::BIN_TO_UUID) ?: $this->createProcedureBinToUuid(); |
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} |
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public function getVersion(): string |
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{ |
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$stmt = $this->conn->prepare("select version()"); |
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$stmt->execute(); |
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return (string)$stmt->fetchColumn(); |
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} |
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public function checkProcedureExists(string $name): bool |
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{ |
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$stmt = $this->conn->prepare(" |
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SELECT 1 |
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FROM mysql.proc |
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WHERE type='FUNCTION' |
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AND db=? |
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AND specific_name=? |
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"); |
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$stmt->execute([$this->dbName, $name]); |
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$result = $stmt->fetchColumn(); |
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return $result === '1'; |
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} |
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public function createProcedureUuidToBin(): void |
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{ |
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$this->conn->query(' |
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CREATE FUNCTION ' . self::UUID_TO_BIN . '(_uuid BINARY(36), _ordered BOOL) |
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RETURNS BINARY(16) |
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LANGUAGE SQL DETERMINISTIC CONTAINS SQL SQL SECURITY INVOKER |
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BEGIN |
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IF _ordered |
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THEN |
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RETURN UNHEX(CONCAT( |
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SUBSTR(_uuid, 15, 4), |
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SUBSTR(_uuid, 10, 4), |
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SUBSTR(_uuid, 1, 8), |
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SUBSTR(_uuid, 20, 4), |
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SUBSTR(_uuid, 25))); |
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ELSE |
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RETURN UNHEX(CONCAT( |
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LEFT(_uuid, 8), |
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MID(_uuid, 10, 4), |
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MID(_uuid, 15, 4), |
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MID(_uuid, 20, 4), |
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RIGHT(_uuid, 12))); |
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END IF; |
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END; |
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'); |
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} |
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public function createProcedureBinToUuid(): void |
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{ |
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$this->conn->query(" |
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CREATE FUNCTION ' . self::BIN_TO_UUID . '(_bin BINARY(16), _ordered BOOL) |
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RETURNS BINARY(36) |
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LANGUAGE SQL DETERMINISTIC CONTAINS SQL SQL SECURITY INVOKER |
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BEGIN |
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DECLARE HEX CHAR(32); |
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SET HEX = HEX(_bin); |
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IF _ordered |
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THEN |
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RETURN |
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LCASE(CONCAT_WS('-', |
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HEX(SUBSTR(_bin, 5, 4)), |
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HEX(SUBSTR(_bin, 3, 2)), |
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HEX(SUBSTR(_bin, 1, 2)), |
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HEX(SUBSTR(_bin, 9, 2)), |
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HEX(SUBSTR(_bin, 11)) |
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)); |
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ELSE |
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RETURN |
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LOWER(CONCAT_WS('-', |
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LEFT(HEX, 8), |
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MID(HEX, 9,4), |
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MID(HEX, 13,4), |
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MID(HEX, 17,4), |
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RIGHT(HEX, 12) |
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)); |
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END IF; |
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END; |
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"); |
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} |
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} |
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edmondscommerce /
doctrine-static-meta
