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<?php |
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namespace mindplay\sql\framework\pdo; |
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use InvalidArgumentException; |
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use mindplay\sql\framework\PreparedStatement; |
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use mindplay\sql\model\Driver; |
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use mindplay\sql\model\TypeProvider; |
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use PDO; |
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use PDOStatement; |
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/** |
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* This class implements a Prepared Statement adapter for PDO Statements. |
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*/ |
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class PreparedPDOStatement implements PreparedStatement |
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{ |
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/** |
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* @var PDOStatement |
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*/ |
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private $handle; |
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/** |
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* @var PDOExceptionMapper |
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*/ |
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private $exception_mapper; |
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/** |
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* @var TypeProvider |
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*/ |
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private $types; |
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/** |
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* @var array |
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*/ |
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private $params = []; |
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/** |
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* @var bool |
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*/ |
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private $executed = false; |
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/** |
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* @param PDOStatement $handle |
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* @param PDOExceptionMapper $exception_mapper |
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* @param TypeProvider $types |
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*/ |
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public function __construct(PDOStatement $handle, PDOExceptionMapper $exception_mapper, TypeProvider $types) |
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{ |
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$this->handle = $handle; |
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$this->exception_mapper = $exception_mapper; |
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$this->types = $types; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function bind($name, $value) |
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{ |
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static $PDO_TYPE = [ |
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'integer' => PDO::PARAM_INT, |
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'double' => PDO::PARAM_STR, // bind as string, since there's no float type in PDO |
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'string' => PDO::PARAM_STR, |
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'boolean' => PDO::PARAM_BOOL, |
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'NULL' => PDO::PARAM_NULL, |
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]; |
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$value_type = gettype($value); |
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$scalar_type = "scalar.{$value_type}"; |
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if ($this->types->hasType($scalar_type)) { |
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$type = $this->types->getType($scalar_type); |
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$value = $type->convertToSQL($value); |
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$value_type = gettype($value); |
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} |
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if (isset($PDO_TYPE[$value_type])) { |
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$this->handle->bindValue($name, $value, $PDO_TYPE[$value_type]); |
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$this->params[$name] = $value; |
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} else { |
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throw new InvalidArgumentException("unexpected value type: {$value_type}"); |
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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() |
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{ |
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if (@$this->handle->execute()) { |
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$this->executed = true; |
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} else { |
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list($sql_state, $error_code, $error_message) = $this->handle->errorInfo(); |
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$exception_type = $this->exception_mapper->getExceptionType($sql_state, $error_code, $error_message); |
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throw new $exception_type($this->handle->queryString, $this->params, "{$sql_state}: {$error_message}", |
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$error_code); |
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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 fetch() |
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{ |
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if (! $this->executed) { |
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$this->execute(); |
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} |
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$result = $this->handle->fetch(PDO::FETCH_ASSOC); |
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if ($result === false) { |
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return null; |
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} |
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return $result; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getRowsAffected() |
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{ |
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return $this->handle->rowCount(); |
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} |
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} |
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mindplay-dk /
sql
