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<?php |
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/** |
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* Phossa Project |
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* |
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* PHP version 5.4 |
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* |
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* @category Library |
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* @package Phossa2\Db |
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* @copyright Copyright (c) 2016 phossa.com |
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* @license http://mit-license.org/ MIT License |
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* @link http://www.phossa.com/ |
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*/ |
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/*# declare(strict_types=1); */ |
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namespace Phossa2\Db\Driver; |
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use Phossa2\Db\Message\Message; |
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use Phossa2\Db\Traits\DriverAwareTrait; |
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use Phossa2\Shared\Base\ObjectAbstract; |
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use Phossa2\Db\Interfaces\ResultInterface; |
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use Phossa2\Db\Exception\RuntimeException; |
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use Phossa2\Db\Exception\NotFoundException; |
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use Phossa2\Db\Interfaces\StatementInterface; |
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/** |
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* StatementAbstract |
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* |
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* @package Phossa2\Db |
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* @author Hong Zhang <[email protected]> |
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* @see ObjectAbstract |
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* @see StatementInterface |
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* @version 2.0.0 |
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* @since 2.0.0 added |
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*/ |
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abstract class StatementAbstract extends ObjectAbstract implements StatementInterface |
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{ |
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use DriverAwareTrait; |
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/** |
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* prepared statement |
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* |
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* @var mixed |
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* @access protected |
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*/ |
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protected $prepared; |
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/** |
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* Result prototype |
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* |
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* @var ResultInterface |
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* @access protected |
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*/ |
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protected $result_prototype; |
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/** |
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* @var ResultInterface |
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* @access protected |
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*/ |
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protected $result; |
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/** |
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* Desctructor |
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* |
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* @access public |
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*/ |
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public function __destruct() |
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{ |
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$this->close(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function prepare(/*# string */ $sql)/*# : bool */ |
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{ |
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// close previous prepared sql if any |
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$this->close(); |
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// prepare sql |
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try { |
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$res = $this->realPrepare($this->getDriver()->getLink(), $sql); |
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if (false !== $res) { |
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$this->prepared = $res; |
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$this->getDriver()->getProfiler()->setSql($sql); |
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return true; |
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} |
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} catch (\Exception $e) { |
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throw new RuntimeException($e->getMessage(), (int) $e->getCode(), $e); |
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} |
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throw new RuntimeException( |
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Message::get(Message::DB_STMT_PREPARE_FAIL, $sql), |
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Message::DB_STMT_PREPARE_FAIL |
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); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function execute(array $parameters = [])/*# : bool */ |
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{ |
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$this->checkPreparation(); |
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$this->getDriver()->getProfiler()->setParameters($parameters)->startWatch(); |
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try { |
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if ($this->realExecute($parameters)) { |
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$result = clone $this->result_prototype; |
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$this->result = $result($this->prepared); |
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$this->getDriver()->getProfiler()->stopWatch(); |
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return true; |
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} |
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} catch (\Exception $e) { |
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throw new RuntimeException($e->getMessage(), (int) $e->getCode(), $e); |
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} |
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throw new RuntimeException( |
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Message::get( |
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Message::DB_STMT_EXECUTE_FAIL, |
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$this->getDriver()->getProfiler()->getSql() |
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), |
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Message::DB_STMT_EXECUTE_FAIL |
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); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getResult()/*# : ResultInterface */ |
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{ |
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if (null === $this->result) { |
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throw new NotFoundException( |
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Message::get(Message::DB_STMT_NO_RESULT), |
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Message::DB_STMT_NO_RESULT |
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); |
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} |
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return $this->result; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function close() |
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{ |
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if ($this->prepared) { |
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// close result |
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$this->closeResult(); |
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// close statement |
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$this->realClose($this->prepared); |
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$this->prepared = null; |
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} |
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} |
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/** |
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* Throw exception if not prepared |
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* |
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* @throws RuntimeException |
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* @access protected |
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*/ |
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protected function checkPreparation() |
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{ |
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// must be prepared |
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if (null === $this->prepared) { |
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throw new RuntimeException( |
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Message::get(Message::DB_STMT_NOTPREPARED), |
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Message::DB_STMT_NOTPREPARED |
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); |
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} |
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// close any previous resultset |
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$this->closeResult(); |
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} |
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/** |
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* Close resultset if any |
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* |
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* @access protected |
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*/ |
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protected function closeResult() |
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{ |
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if ($this->result) { |
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$this->result->close(); |
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$this->result = null; |
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} |
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} |
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/** |
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* Driver specific prepare statement |
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* |
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* @param mixed $link db link resource |
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* @param string $sql |
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* @return mixed |
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* @throws RuntimeException |
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* @access protected |
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*/ |
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abstract protected function realPrepare($link, /*# string */ $sql); |
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/** |
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* Driver specific statement execution |
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* |
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* @param array $parameters |
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* @return bool |
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* @throws RuntimeException |
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* @access protected |
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*/ |
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abstract protected function realExecute(array $parameters)/*# : bool */; |
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/** |
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* Close statement |
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* |
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* @param mixed prepared low-level statement |
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* @access protected |
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*/ |
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abstract protected function realClose($stmt); |
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} |
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phossa2 /
db
