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<?php |
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namespace Domain\Eventing; |
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use Domain\Identity\Identity; |
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use Domain\Tools\ClassToString; |
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use Doctrine\DBAL\DriverManager; |
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use Doctrine\DBAL\Connection; |
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use Doctrine\DBAL\Schema\Schema; |
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/** |
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* @author Sebastiaan Hilbers <[email protected]> |
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*/ |
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class MySqlEventStore implements EventStore |
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{ |
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/** |
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* @var Connection |
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*/ |
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private $conn; |
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public function __construct(Connection $conn) |
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{ |
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$this->conn = $conn; |
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} |
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public static function createSchema(Connection $conn) |
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{ |
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$sm = $conn->getSchemaManager(); |
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$schema = static::getSchema(); |
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foreach ($schema->getTables() as $table) { |
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$sm->createTable($table); |
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} |
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} |
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public static function getSchema() |
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{ |
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$schema = new Schema(); |
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$streamTable = $schema->createTable('aggregate_events'); |
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$streamTable->addColumn('id', 'integer') |
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->setAutoincrement(true); |
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$streamTable->addColumn('identity', 'string') |
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->setNotnull(true); |
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$streamTable->addColumn('event', 'text') |
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->setNotnull(true); |
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$streamTable->addColumn('data', 'text') |
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->setNotnull(true); |
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$streamTable->setPrimaryKey(array('id')); |
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return $schema; |
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} |
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public function commit(UncommittedEvents $events) |
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{ |
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$query = ' |
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INSERT INTO `aggregate_events` (`identity`, `event`, `data`) |
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VALUES (:identity, :event, :data)'; |
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$pdo = $this->conn->getWrappedConnection(); |
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foreach ($events as $event) { |
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try { |
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$pdo->beginTransaction(); |
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$stmt = $pdo->prepare($query); |
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$stmt->execute([ |
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':identity' => (string) $event->getAggregateIdentity(), |
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':event' => (string) ClassToString::fqcn($event), |
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':data' => (string) serialize($event) |
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]); |
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$pdo->commit(); |
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} catch (\PDOException $ex) { |
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$pdo->rollBack(); |
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throw $ex; |
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} |
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} |
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} |
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public function getAggregateHistoryFor(Identity $id, $offset = 0, $max = null) |
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{ |
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$query = "SELECT * FROM `aggregate_events` WHERE identity = :identity"; |
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if ($offset > 0) { |
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$query .= " OFFSET {$offset}"; |
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} |
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if (!is_null($max)) { |
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$query .= " LIMIT {$max}"; |
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} |
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$pdo = $this->conn->getWrappedConnection(); |
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$stmt = $pdo->prepare($query); |
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$stmt->execute([':identity' => (string) $id]); |
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return new CommittedEvents( |
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$id, |
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array_map(function ($row) { |
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return unserialize($row['data']); |
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}, $stmt->fetchAll(\PDO::FETCH_ASSOC)) |
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); |
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} |
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} |
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bashilbers /
domain
