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<?php |
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namespace Soluble\Schema\Source\Mysql; |
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/** |
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* Wrapper for basic mysqli/pdo usage |
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*/ |
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use Soluble\Schema\Exception; |
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use ArrayObject; |
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class MysqlConnectionAdapter |
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{ |
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const DRIVER_TYPE_PDO = 'pdo'; |
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const DRIVER_TYPE_MYSQLI = 'mysqli'; |
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/** |
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* |
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* @var string |
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*/ |
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protected $driver; |
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/** |
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* |
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* @var \mysqli|null |
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*/ |
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protected $mysqli; |
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/** |
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* |
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* @var \PDO|null |
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*/ |
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protected $pdo; |
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/** |
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* |
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* @var string |
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*/ |
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protected $type; |
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/** |
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* |
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* @throws Exception\InvalidArgumentException |
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* @param \mysqli|\PDO $conn |
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*/ |
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public function __construct($conn) |
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{ |
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if ($conn instanceof \mysqli) { |
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$this->mysqli = $conn; |
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$this->type = self::DRIVER_TYPE_MYSQLI; |
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} elseif ($conn instanceof \PDO && $conn->getAttribute(\PDO::ATTR_DRIVER_NAME) == 'mysql') { |
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$this->pdo = $conn; |
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$this->type = self::DRIVER_TYPE_PDO; |
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} else { |
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$msg = "MysqlConnectionAdapter requires connection to be either 'pdo:mysql' or 'mysqli'"; |
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throw new Exception\InvalidArgumentException($msg); |
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} |
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} |
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/** |
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* Return current schema name |
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* @return string|false |
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*/ |
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public function getCurrentSchema() |
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{ |
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$query = 'SELECT DATABASE() as current_schema'; |
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$results = $this->query($query); |
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if (count($results) == 0 || $results[0]['current_schema'] === null) { |
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return false; |
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} |
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return $results[0]['current_schema']; |
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} |
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/** |
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* |
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* @param string $value |
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* @return string |
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*/ |
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public function quoteValue($value) |
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{ |
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if ($this->type == self::DRIVER_TYPE_MYSQLI) { |
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$quoted = "'" . $this->mysqli->real_escape_string($value) . "'"; |
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} else { |
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$quoted = $this->pdo->quote($value); |
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} |
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return $quoted; |
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} |
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/** |
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* Execute query and return query as an ArrayObject |
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* |
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* @param string $query |
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* @return ArrayObject |
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*/ |
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public function query($query) |
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{ |
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if ($this->type == self::DRIVER_TYPE_MYSQLI) { |
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$results = $this->queryMysqli($query); |
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} else { |
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$results = $this->queryPDO($query); |
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} |
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return $results; |
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} |
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/** |
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* Execute special sql like set names... |
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* @param string $query |
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* @return void |
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*/ |
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public function execute($query) |
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{ |
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if ($this->type == self::DRIVER_TYPE_MYSQLI) { |
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$this->queryMysqli($query); |
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} else { |
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$this->executePDO($query); |
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} |
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} |
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/** |
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* |
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* @param string $query |
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* @return void |
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*/ |
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protected function executePDO($query) |
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{ |
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try { |
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$ret = $this->pdo->exec($query); |
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if ($ret === false) { |
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throw new Exception\InvalidArgumentException("Cannot execute [$query]."); |
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} |
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} catch (Exception\InvalidArgumentException $e) { |
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throw $e; |
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} catch (\Exception $e) { |
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$msg = "PDOException : {$e->getMessage()} [$query]"; |
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throw new Exception\InvalidArgumentException($msg); |
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} |
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} |
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/** |
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* |
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* @param string $query |
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* @return ArrayObject |
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*/ |
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protected function queryPDO($query) |
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{ |
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try { |
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$stmt = $this->pdo->query($query, \PDO::FETCH_ASSOC); |
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if ($stmt === false) { |
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throw new Exception\InvalidArgumentException("Query cannot be executed [$query]."); |
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} |
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$results = new ArrayObject(); |
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foreach ($stmt as $row) { |
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$results->append($row); |
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} |
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} catch (Exception\InvalidArgumentException $e) { |
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throw $e; |
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} catch (\Exception $e) { |
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$msg = "PDOException : {$e->getMessage()} [$query]"; |
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throw new Exception\InvalidArgumentException($msg); |
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} |
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return $results; |
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} |
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/** |
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* |
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* @param string $query |
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* @return ArrayObject |
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*/ |
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protected function queryMysqli($query) |
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{ |
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try { |
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$r = $this->mysqli->query($query); |
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$results = new ArrayObject(); |
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if ($r === false) { |
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throw new Exception\InvalidArgumentException("Query cannot be executed [$query]."); |
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} elseif ($r !== true && !$r instanceof \mysqli_result) { |
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throw new Exception\InvalidArgumentException("Query didn't return any result [$query]."); |
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} elseif ($r instanceof \mysqli_result) { |
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while ($row = $r->fetch_assoc()) { |
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$results->append($row); |
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} |
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} |
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} catch (Exception\InvalidArgumentException $e) { |
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throw $e; |
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} catch (\Exception $e) { |
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$msg = "MysqliException: {$e->getMessage()} [$query]"; |
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throw new Exception\InvalidArgumentException($msg); |
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} |
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return $results; |
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} |
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} |
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