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<?php |
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declare(strict_types=1); |
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namespace MySQLReplication\Repository; |
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use Doctrine\DBAL\Connection; |
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use Doctrine\DBAL\Exception; |
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use MySQLReplication\BinLog\BinLogException; |
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use MySQLReplication\Exception\MySQLReplicationException; |
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class MySQLRepository implements RepositoryInterface, PingableConnection |
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{ |
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private $connection; |
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64 |
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public function __construct(Connection $connection) |
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{ |
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$this->connection = $connection; |
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} |
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public function __destruct() |
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{ |
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$this->connection->close(); |
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} |
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public function getFields(string $database, string $table): FieldDTOCollection |
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{ |
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$sql = ' |
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SELECT |
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`COLUMN_NAME`, |
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`COLLATION_NAME`, |
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`CHARACTER_SET_NAME`, |
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`COLUMN_COMMENT`, |
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`COLUMN_TYPE`, |
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`COLUMN_KEY` |
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FROM |
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`information_schema`.`COLUMNS` |
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WHERE |
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`TABLE_SCHEMA` = ? |
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AND |
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`TABLE_NAME` = ? |
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ORDER BY |
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ORDINAL_POSITION |
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'; |
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return FieldDTOCollection::makeFromArray($this->getConnection()->fetchAllAssociative($sql, [$database, $table])); |
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} |
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private function getConnection(): Connection |
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{ |
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if (false === $this->ping($this->connection)) { |
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1 |
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$this->connection->close(); |
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$this->connection->connect(); |
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} |
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return $this->connection; |
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} |
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/** |
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* @throws Exception |
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*/ |
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public function isCheckSum(): bool |
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{ |
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$res = $this->getConnection()->fetchAssociative('SHOW GLOBAL VARIABLES LIKE "BINLOG_CHECKSUM"'); |
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return isset($res['Value']) && $res['Value'] !== 'NONE'; |
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} |
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public function getVersion(): string |
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{ |
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$r = ''; |
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$versions = $this->getConnection()->fetchAllAssociative('SHOW VARIABLES LIKE "version%"'); |
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if (is_array($versions) && 0 !== count($versions)) { |
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foreach ($versions as $version) { |
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$r .= $version['Value']; |
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} |
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} |
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return $r; |
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} |
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/** |
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* @inheritDoc |
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* @throws Exception |
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* @throws BinLogException |
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*/ |
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public function getMasterStatus(): MasterStatusDTO |
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{ |
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$data = $this->getConnection()->fetchAssociative('SHOW MASTER STATUS'); |
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if (empty($data)) { |
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throw new BinLogException( |
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MySQLReplicationException::BINLOG_NOT_ENABLED, |
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MySQLReplicationException::BINLOG_NOT_ENABLED_CODE |
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); |
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} |
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return MasterStatusDTO::makeFromArray($data); |
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} |
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public function ping(Connection $connection): bool |
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{ |
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try { |
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$connection->executeQuery($connection->getDatabasePlatform()->getDummySelectSQL()); |
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return true; |
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1 |
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} catch (Exception $e) { |
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return false; |
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} |
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} |
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} |
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Moln /
php-mysql-replication
