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<?php |
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namespace BenTools\SimpleDBAL\Model\Adapter\PDO; |
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use BenTools\SimpleDBAL\Contract\ResultInterface; |
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use BenTools\SimpleDBAL\Model\Exception\DBALException; |
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use IteratorAggregate; |
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use PDO; |
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use PDOStatement; |
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final class Result implements IteratorAggregate, ResultInterface |
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{ |
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private $pdo; |
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private $stmt; |
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private $frozen = false; |
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public function __construct(PDO $pdo = null, PDOStatement $stmt = null) |
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{ |
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$this->pdo = $pdo; |
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$this->stmt = $stmt; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getLastInsertId() |
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{ |
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if (null === $this->pdo) { |
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throw new DBALException("No \PDO object provided."); |
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} |
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return $this->pdo->lastInsertId(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function count(): int |
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{ |
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if (null === $this->stmt) { |
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throw new DBALException("No \PDOStatement object provided."); |
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} |
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return $this->stmt->rowCount(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function asArray(): array |
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{ |
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if (null === $this->stmt) { |
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throw new DBALException("No \PDOStatement object provided."); |
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} |
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$this->freeze(); |
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return $this->stmt->fetchAll(PDO::FETCH_ASSOC); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function asRow(): ?array |
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{ |
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if (null === $this->stmt) { |
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throw new DBALException("No \PDOStatement object provided."); |
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} |
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$this->freeze(); |
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return $this->stmt->fetch(PDO::FETCH_ASSOC) ?: null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function asList(): array |
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{ |
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if (null === $this->stmt) { |
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throw new DBALException("No \PDOStatement object provided."); |
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} |
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$this->freeze(); |
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$generator = static function (PDOStatement $stmt) { |
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while (false !== ($value = $stmt->fetchColumn(0))) { |
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yield $value; |
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} |
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}; |
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return iterator_to_array($generator($this->stmt)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function asValue() |
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{ |
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if (null === $this->stmt) { |
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throw new DBALException("No \PDOStatement object provided."); |
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} |
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$this->freeze(); |
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$value = $this->stmt->fetchColumn(0); |
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return false !== $value ? $value : null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getIterator() |
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{ |
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if (null === $this->stmt) { |
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throw new DBALException("No \PDOStatement object provided."); |
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} |
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$this->freeze(); |
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while ($row = $this->stmt->fetch(PDO::FETCH_ASSOC)) { |
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yield $row; |
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} |
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} |
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private function freeze(): void |
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{ |
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if (true === $this->frozen) { |
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throw new DBALException("This result is frozen. You have to re-execute this statement."); |
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} |
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$this->frozen = true; |
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} |
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public static function from(...$arguments): self |
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{ |
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$instance = new self(); |
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foreach ($arguments as $argument) { |
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if ($argument instanceof PDO) { |
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$instance->pdo = $argument; |
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} |
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if ($argument instanceof PDOStatement) { |
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$instance->stmt = $argument; |
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} |
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} |
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return $instance; |
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} |
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} |
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bpolaszek /
simple-dbal
