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<?php |
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namespace Dazzle\MySQL; |
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use Dazzle\Event\BaseEventEmitter; |
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use Dazzle\MySQL\Protocol\Command\QueryCommand; |
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use Dazzle\MySQL\Protocol\CommandInterface; |
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use Dazzle\MySQL\Protocol\Query; |
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use Dazzle\MySQL\Protocol\QueryInterface; |
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use Dazzle\Promise\Promise; |
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use Dazzle\Promise\PromiseInterface; |
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use Dazzle\Throwable\Exception\Runtime\ExecutionException; |
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use SplQueue; |
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class Transaction extends BaseEventEmitter implements TransactionInterface |
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{ |
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/** |
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* @var DatabaseInterface |
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*/ |
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protected $database; |
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/** |
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* @var CommandInterface[] |
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*/ |
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protected $queue; |
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/** |
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* @var bool |
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*/ |
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protected $open; |
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/** |
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* @param DatabaseInterface $database |
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*/ |
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public function __construct(DatabaseInterface $database) |
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{ |
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$this->database = $database; |
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$this->queue = []; |
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$this->open = true; |
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} |
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/** |
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* @override |
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* @inheritDoc |
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*/ |
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public function isOpen() |
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{ |
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return $this->open; |
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} |
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/** |
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* @override |
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* @inheritDoc |
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*/ |
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public function query($sql, $sqlParams = []) |
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{ |
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if (!$this->isOpen()) |
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{ |
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return Promise::doReject(new ExecutionException('This transaction is no longer open.')); |
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} |
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$promise = new Promise(); |
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$query = new Query($sql, $sqlParams); |
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$command = new QueryCommand($this->database, $query); |
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$this->on('error', function ($trans, $err) use ($promise) { |
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return $promise->reject($err); |
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}); |
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$this->on('success', function ($trans) use ($promise, $command) { |
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return $promise->resolve($command); |
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}); |
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$this->queue[] = $command; |
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return $promise; |
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} |
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/** |
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* @override |
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* @inheritDoc |
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*/ |
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public function execute($sql, $sqlParams = []) |
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{ |
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return $this->query($sql, $sqlParams)->then(function($command) { |
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return $command->affectedRows; |
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}); |
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} |
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/** |
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* @override |
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* @inheritDoc |
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*/ |
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public function commit() |
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{ |
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if (!$this->isOpen()) |
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{ |
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return Promise::doReject(new ExecutionException('This transaction is no longer open.')); |
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} |
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$promise = new Promise(); |
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$this->on('error', function ($trans, $err) use ($promise) { |
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return $promise->reject($err); |
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}); |
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$this->on('success', function ($trans) use ($promise) { |
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return $promise->resolve(); |
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}); |
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$this->open = false; |
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$this->emit('commit', [ $this, $this->queue ]); |
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$this->queue = []; |
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return $promise; |
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} |
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/** |
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* @override |
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* @inheritDoc |
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*/ |
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public function rollback() |
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{ |
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if (!$this->isOpen()) |
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{ |
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return Promise::doReject(new ExecutionException('This transaction is no longer open.')); |
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} |
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$this->open = false; |
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$this->emit('rollback', [ $this ]); |
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$this->queue = []; |
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return Promise::doResolve(); |
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} |
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} |
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dazzle-php /
mysql
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.