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<?php |
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/** |
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* Author: Nil Portugués Calderó <[email protected]> |
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* Date: 4/5/15 |
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* Time: 12:20 PM |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NilPortugues\Cache\Adapter\SQL\Connection; |
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use InvalidArgumentException; |
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use PDO; |
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use PDOException; |
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/** |
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* Class AbstractPDOConnection |
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* @package NilPortugues\Cache\Adapter\SQL\Connection |
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*/ |
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abstract class AbstractPDOConnection |
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{ |
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const DRIVER = 'driver'; |
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const DATABASE = 'database'; |
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const SOCKET = 'socket'; |
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const USER = 'user'; |
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const PASSWORD = 'password'; |
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const DRIVER_OPTIONS = 'options'; |
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/** |
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* For MySql |
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*/ |
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const HOST = 'host'; |
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const PORT = 'port'; |
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const DB_NAME = 'dbname'; |
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const UNIX_SOCKET = 'unix_socket'; |
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const CHARSET = 'charset'; |
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/** |
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* For Sqlite |
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*/ |
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const PATH = 'path'; |
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const MEMORY = 'memory'; |
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/** |
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* @var PDO |
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*/ |
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protected $connection; |
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/** |
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* @var array |
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*/ |
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protected $keys = []; |
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/** |
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* @var string |
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*/ |
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protected $dsn = ''; |
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/** |
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* Attempts to create a connection with the database. |
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* |
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* @param array $parameters All connection parameters passed by the user. |
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* @param string|null $username The username to use when connecting. |
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* @param string|null $password The password to use when connecting. |
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* @param array $driverOptions The driver options to use when connecting. |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct(array $parameters, $username = null, $password = null, array $driverOptions = []) |
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{ |
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if (false === \array_key_exists(self::DATABASE, $parameters)) { |
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throw new InvalidArgumentException( |
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\sprintf("Parameter array requires of '%s' data to be set.", self::DATABASE) |
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); |
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} |
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try { |
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$dsn = $this->buildDSNString($parameters[self::DATABASE]); |
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$this->connection = new PDO($this->dsn.$dsn, $username, $password, $driverOptions); |
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$this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
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} catch (PDOException $e) { |
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throw new InvalidArgumentException( |
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\sprintf("An exception occurred in %s: %s", \get_class($this), $e->getMessage()) |
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); |
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} |
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} |
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/** |
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* @return PDO |
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* @codeCoverageIgnore |
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*/ |
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public function getConnection() |
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{ |
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return $this->connection; |
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} |
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/** |
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* @param array $parameters |
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* |
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* @return string |
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*/ |
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protected function buildDSNString(array &$parameters) |
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{ |
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$dsn = []; |
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foreach ($this->keys as $keyName) { |
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if (\array_key_exists($keyName, $parameters) && \strlen($parameters[$keyName]) > 0) { |
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$dsn[] = "{$keyName}={$parameters[$keyName]}"; |
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} |
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} |
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return \implode(";", $dsn); |
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} |
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} |
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nilportugues /
cache
