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<?php |
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/** |
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* WebHemi. |
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* |
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* PHP version 7.1 |
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* |
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* @copyright 2012 - 2018 Gixx-web (http://www.gixx-web.com) |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* |
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* @link http://www.gixx-web.com |
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*/ |
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declare(strict_types = 1); |
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namespace WebHemi\Data\Query\SQL; |
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use InvalidArgumentException; |
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use PDO; |
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use RuntimeException; |
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use WebHemi\Data\Driver\DriverInterface; |
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use WebHemi\Data\Driver\PDO\MySQL\DriverAdapter as SQLDriverAdapter; |
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use WebHemi\Data\Query\QueryInterface; |
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/** |
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* Class SqlQueryAdapter |
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*/ |
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class SqlQueryAdapter implements QueryInterface |
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{ |
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/** |
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* @var DriverInterface |
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*/ |
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private $driverAdapter; |
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/** |
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* @var array |
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*/ |
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private $identifierList = []; |
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/** |
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* QueryInterface constructor. |
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* |
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* @param DriverInterface $driverAdapter |
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*/ |
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public function __construct(DriverInterface $driverAdapter) |
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{ |
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$this->driverAdapter = $driverAdapter; |
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$this->init(); |
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} |
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/** |
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* Collects all the valid statements. |
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*/ |
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private function init() : void |
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{ |
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$statementFiles = glob(__DIR__.'/statements/*.sql', GLOB_BRACE); |
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foreach ($statementFiles as $file) { |
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$this->identifierList[basename($file, '.sql')] = $file; |
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} |
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} |
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/** |
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* Returns the Data Driver instance. |
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* |
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* @return DriverInterface |
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*/ |
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public function getDriver() : DriverInterface |
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{ |
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return $this->driverAdapter; |
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} |
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/** |
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* Returns all the query identifiers assigned to the query adapter. |
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* |
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* @return array |
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*/ |
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public function getQueryIdentifierList() : array |
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{ |
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return $this->identifierList; |
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} |
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/** |
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* Fetches data buy executing a query identified by ID. |
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* |
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* @param string $queryIdentifier |
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* @param array $parameters |
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* @throws InvalidArgumentException |
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* @throws RuntimeException |
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* @return array |
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*/ |
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public function fetchData(string $queryIdentifier, array $parameters = []) : array |
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{ |
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if (!isset($this->identifierList[$queryIdentifier])) { |
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throw new InvalidArgumentException( |
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sprintf('No such query found for this adapter: "%s"', $queryIdentifier), |
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1000 |
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); |
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} |
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$query = file_get_contents($this->identifierList[$queryIdentifier]); |
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// This nasty trick helps us to be able to parameterize the ORDER BY statement. |
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if (isset($parameters[':orderBy'])) { |
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$orderBy = $parameters[':orderBy']; |
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unset($parameters[':orderBy']); |
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$query = str_replace(':orderBy', $orderBy, $query); |
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} |
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/** @var SQLDriverAdapter $driver */ |
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$driver = $this->getDriver(); |
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$statement = $driver->prepare($query); |
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foreach ($parameters as $parameter => $value) { |
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$statement->bindValue($parameter, $value, $this->getValueType($value)); |
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} |
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try { |
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$executedSuccessful = $statement->execute(); |
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} catch (\Throwable $exception) { |
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throw new RuntimeException( |
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sprintf('Error executing query for "%s". %s', $queryIdentifier, $exception->getMessage()), |
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1000 |
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); |
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} |
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if (!$executedSuccessful) { |
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throw new RuntimeException( |
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sprintf('Error running query: "%s"', $queryIdentifier), |
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1001 |
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); |
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} |
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return $statement->fetchAll(PDO::FETCH_ASSOC); |
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} |
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/** |
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* Returns the PDO type of the value. |
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* |
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* @param mixed $value |
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* @return int |
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*/ |
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private function getValueType($value) : int |
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{ |
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$type = PDO::PARAM_STR; |
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if (is_numeric($value)) { |
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$type = PDO::PARAM_INT; |
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} elseif (is_null($value)) { |
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$type = PDO::PARAM_NULL; |
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} elseif (is_bool($value)) { |
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$type = PDO::PARAM_BOOL; |
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} |
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return $type; |
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} |
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} |
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Gixx /
WebHemi
