doctrine · morozov · Nov 6, 2021 · Nov 5, 2021
diff --git a/src/Driver/PDO/Connection.php b/src/Driver/PDO/Connection.php
@@ -2,7 +2,6 @@
 
 namespace Doctrine\DBAL\Driver\PDO;
 
-use Doctrine\DBAL\Driver\Exception as ExceptionInterface;
 use Doctrine\DBAL\Driver\Result as ResultInterface;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\Statement as StatementInterface;
@@ -21,22 +20,12 @@ final class Connection implements ServerInfoAwareConnection
 
     /**
      * @internal The connection can be only instantiated by its driver.
-     *
-     * @param string       $dsn
-     * @param string|null  $user
-     * @param string|null  $password
-     * @param mixed[]|null $options
-     *
-     * @throws ExceptionInterface
      */
-    public function __construct($dsn, $user = null, $password = null, ?array $options = null)
+    public function __construct(PDO $connection)
     {
-        try {
-            $this->connection = new PDO($dsn, (string) $user, (string) $password, (array) $options);
-            $this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
-        } catch (PDOException $exception) {
-            throw Exception::new($exception);
-        }
+        $connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+        $this->connection = $connection;
     }
 
     public function exec(string $sql): int
@@ -71,7 +60,7 @@ public function prepare(string $sql): StatementInterface
             $stmt = $this->connection->prepare($sql);
             assert($stmt instanceof PDOStatement);
 
-            return $this->createStatement($stmt);
+            return new Statement($stmt);
         } catch (PDOException $exception) {
             throw Exception::new($exception);
         }
@@ -119,14 +108,6 @@ public function lastInsertId($name = null)
         }
     }
 
-    /**
-     * Creates a wrapped statement
-     */
-    protected function createStatement(PDOStatement $stmt): Statement
-    {
-        return new Statement($stmt);
-    }
-
     /**
      * {@inheritDoc}
      */

diff --git a/src/Driver/PDO/MySQL/Driver.php b/src/Driver/PDO/MySQL/Driver.php
@@ -4,7 +4,9 @@
 
 use Doctrine\DBAL\Driver\AbstractMySQLDriver;
 use Doctrine\DBAL\Driver\PDO\Connection;
+use Doctrine\DBAL\Driver\PDO\Exception;
 use PDO;
+use PDOException;
 
 final class Driver extends AbstractMySQLDriver
 {
@@ -21,12 +23,18 @@ public function connect(array $params)
             $driverOptions[PDO::ATTR_PERSISTENT] = true;
         }
 
-        return new Connection(
-            $this->constructPdoDsn($params),
-            $params['user'] ?? '',
-            $params['password'] ?? '',
-            $driverOptions
-        );
+        try {
+            $pdo = new PDO(
+                $this->constructPdoDsn($params),
+                $params['user'] ?? '',
+                $params['password'] ?? '',
+                $driverOptions
+            );
+        } catch (PDOException $exception) {
+            throw Exception::new($exception);
+        }
+
+        return new Connection($pdo);
     }
 
     /**
@@ -36,7 +44,7 @@ public function connect(array $params)
      *
      * @return string The DSN.
      */
-    protected function constructPdoDsn(array $params)
+    private function constructPdoDsn(array $params)
     {
         $dsn = 'mysql:';
         if (isset($params['host']) && $params['host'] !== '') {

diff --git a/src/Driver/PDO/OCI/Driver.php b/src/Driver/PDO/OCI/Driver.php
@@ -4,7 +4,9 @@
 
 use Doctrine\DBAL\Driver\AbstractOracleDriver;
 use Doctrine\DBAL\Driver\PDO\Connection;
+use Doctrine\DBAL\Driver\PDO\Exception;
 use PDO;
+use PDOException;
 
 final class Driver extends AbstractOracleDriver
 {
@@ -21,12 +23,18 @@ public function connect(array $params)
             $driverOptions[PDO::ATTR_PERSISTENT] = true;
         }
 
-        return new Connection(
-            $this->constructPdoDsn($params),
-            $params['user'] ?? '',
-            $params['password'] ?? '',
-            $driverOptions
-        );
+        try {
+            $pdo = new PDO(
+                $this->constructPdoDsn($params),
+                $params['user'] ?? '',
+                $params['password'] ?? '',
+                $driverOptions
+            );
+        } catch (PDOException $exception) {
+            throw Exception::new($exception);
+        }
+
+        return new Connection($pdo);
     }
 
     /**

diff --git a/src/Driver/PDO/PgSQL/Driver.php b/src/Driver/PDO/PgSQL/Driver.php
@@ -4,7 +4,9 @@
 
 use Doctrine\DBAL\Driver\AbstractPostgreSQLDriver;
 use Doctrine\DBAL\Driver\PDO\Connection;
+use Doctrine\DBAL\Driver\PDO\Exception;
 use PDO;
+use PDOException;
 
 final class Driver extends AbstractPostgreSQLDriver
 {
@@ -21,22 +23,27 @@ public function connect(array $params)
             $driverOptions[PDO::ATTR_PERSISTENT] = true;
         }
 
-        $connection = new Connection(
-            $this->_constructPdoDsn($params),
-            $params['user'] ?? '',
-            $params['password'] ?? '',
-            $driverOptions,
-        );
+        try {
+            $pdo = new PDO(
+                $this->constructPdoDsn($params),
+                $params['user'] ?? '',
+                $params['password'] ?? '',
+                $driverOptions,
+            );
+        } catch (PDOException $exception) {
+            throw Exception::new($exception);
+        }
 
         if (
             ! isset($driverOptions[PDO::PGSQL_ATTR_DISABLE_PREPARES])
             || $driverOptions[PDO::PGSQL_ATTR_DISABLE_PREPARES] === true
         ) {
-            $connection->getWrappedConnection()->setAttribute(PDO::PGSQL_ATTR_DISABLE_PREPARES, true);
+            $pdo->setAttribute(PDO::PGSQL_ATTR_DISABLE_PREPARES, true);
         }
 
+        $connection = new Connection($pdo);
+
         /* defining client_encoding via SET NAMES to avoid inconsistent DSN support
-         * - the 'client_encoding' connection param only works with postgres >= 9.1
          * - passing client_encoding via the 'options' param breaks pgbouncer support
          */
         if (isset($params['charset'])) {
@@ -53,7 +60,7 @@ public function connect(array $params)
      *
      * @return string The DSN.
      */
-    private function _constructPdoDsn(array $params)
+    private function constructPdoDsn(array $params)
     {
         $dsn = 'pgsql:';
 

diff --git a/src/Driver/PDO/SQLSrv/Driver.php b/src/Driver/PDO/SQLSrv/Driver.php
@@ -6,6 +6,7 @@
 use Doctrine\DBAL\Driver\AbstractSQLServerDriver\Exception\PortWithoutHost;
 use Doctrine\DBAL\Driver\Exception;
 use Doctrine\DBAL\Driver\PDO\Connection as PDOConnection;
+use Doctrine\DBAL\Driver\PDO\Exception as PDOException;
 use PDO;
 
 use function is_int;
@@ -20,30 +21,34 @@ final class Driver extends AbstractSQLServerDriver
      */
     public function connect(array $params)
     {
-        $pdoOptions = $dsnOptions = [];
+        $driverOptions = $dsnOptions = [];
 
         if (isset($params['driverOptions'])) {
             foreach ($params['driverOptions'] as $option => $value) {
                 if (is_int($option)) {
-                    $pdoOptions[$option] = $value;
+                    $driverOptions[$option] = $value;
                 } else {
                     $dsnOptions[$option] = $value;
                 }
             }
         }
 
         if (! empty($params['persistent'])) {
-            $pdoOptions[PDO::ATTR_PERSISTENT] = true;
+            $driverOptions[PDO::ATTR_PERSISTENT] = true;
         }
 
-        return new Connection(
-            new PDOConnection(
-                $this->_constructPdoDsn($params, $dsnOptions),
+        try {
+            $pdo = new PDO(
+                $this->constructDsn($params, $dsnOptions),
                 $params['user'] ?? '',
                 $params['password'] ?? '',
-                $pdoOptions
-            )
-        );
+                $driverOptions
+            );
+        } catch (\PDOException $exception) {
+            throw PDOException::new($exception);
+        }
+
+        return new Connection(new PDOConnection($pdo));
     }
 
     /**
@@ -56,7 +61,7 @@ public function connect(array $params)
      *
      * @throws Exception
      */
-    private function _constructPdoDsn(array $params, array $connectionOptions)
+    private function constructDsn(array $params, array $connectionOptions)
     {
         $dsn = 'sqlsrv:server=';
 

diff --git a/src/Driver/PDO/SQLite/Driver.php b/src/Driver/PDO/SQLite/Driver.php
@@ -4,14 +4,17 @@
 
 use Doctrine\DBAL\Driver\AbstractSQLiteDriver;
 use Doctrine\DBAL\Driver\PDO\Connection;
+use Doctrine\DBAL\Driver\PDO\Exception;
 use Doctrine\DBAL\Platforms\SqlitePlatform;
+use PDO;
+use PDOException;
 
 use function array_merge;
 
 final class Driver extends AbstractSQLiteDriver
 {
     /** @var mixed[] */
-    protected $_userDefinedFunctions = [
+    private $userDefinedFunctions = [
         'sqrt' => ['callback' => [SqlitePlatform::class, 'udfSqrt'], 'numArgs' => 1],
         'mod'  => ['callback' => [SqlitePlatform::class, 'udfMod'], 'numArgs' => 2],
         'locate'  => ['callback' => [SqlitePlatform::class, 'udfLocate'], 'numArgs' => -1],
@@ -27,27 +30,29 @@ public function connect(array $params)
         $driverOptions = $params['driverOptions'] ?? [];
 
         if (isset($driverOptions['userDefinedFunctions'])) {
-            $this->_userDefinedFunctions = array_merge(
-                $this->_userDefinedFunctions,
+            $this->userDefinedFunctions = array_merge(
+                $this->userDefinedFunctions,
                 $driverOptions['userDefinedFunctions']
             );
             unset($driverOptions['userDefinedFunctions']);
         }
 
-        $connection = new Connection(
-            $this->_constructPdoDsn($params),
-            $params['user'] ?? '',
-            $params['password'] ?? '',
-            $driverOptions
-        );
-
-        $pdo = $connection->getWrappedConnection();
+        try {
+            $pdo = new PDO(
+                $this->constructPdoDsn($params),
+                $params['user'] ?? '',
+                $params['password'] ?? '',
+                $driverOptions
+            );
+        } catch (PDOException $exception) {
+            throw Exception::new($exception);
+        }
 
-        foreach ($this->_userDefinedFunctions as $fn => $data) {
+        foreach ($this->userDefinedFunctions as $fn => $data) {
             $pdo->sqliteCreateFunction($fn, $data['callback'], $data['numArgs']);
         }
 
-        return $connection;
+        return new Connection($pdo);
     }
 
     /**
@@ -57,7 +62,7 @@ public function connect(array $params)
      *
      * @return string The DSN.
      */
-    protected function _constructPdoDsn(array $params)
+    private function constructPdoDsn(array $params)
     {
         $dsn = 'sqlite:';
         if (isset($params['path'])) {