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<?php

namespace Doctrine\DBAL\Driver;

use Doctrine\DBAL\Connection;
use Doctrine\DBAL\Driver;
use Doctrine\DBAL\Driver\DriverException as DeprecatedDriverException;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\Exception\ConnectionException;
use Doctrine\DBAL\Exception\DeadlockException;
use Doctrine\DBAL\Exception\DriverException;
use Doctrine\DBAL\Exception\ForeignKeyConstraintViolationException;
use Doctrine\DBAL\Exception\InvalidFieldNameException;
use Doctrine\DBAL\Exception\NonUniqueFieldNameException;
use Doctrine\DBAL\Exception\NotNullConstraintViolationException;
use Doctrine\DBAL\Exception\SyntaxErrorException;
use Doctrine\DBAL\Exception\TableExistsException;
use Doctrine\DBAL\Exception\TableNotFoundException;
use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
use Doctrine\DBAL\Platforms\PostgreSQL100Platform;
use Doctrine\DBAL\Platforms\PostgreSQL91Platform;
use Doctrine\DBAL\Platforms\PostgreSQL92Platform;
use Doctrine\DBAL\Platforms\PostgreSQL94Platform;
use Doctrine\DBAL\Platforms\PostgreSqlPlatform;
use Doctrine\DBAL\Schema\PostgreSqlSchemaManager;
use Doctrine\DBAL\VersionAwarePlatformDriver;

use function assert;
use function preg_match;
use function strpos;
use function version_compare;

/**
 * Abstract base implementation of the {@link Driver} interface for PostgreSQL based drivers.
 */
abstract class AbstractPostgreSQLDriver implements Driver, ExceptionConverterDriver, VersionAwarePlatformDriver
{
    /**
     * {@inheritdoc}
     *
     * @deprecated
     *
     * @link http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html
     */
    public function convertException($message, DeprecatedDriverException $exception)
    {
        $sqlState = $exception->getSQLState();

switch ($sqlState) {
            case '40001':
            case '40P01':
                return new DeadlockException($message, $exception);

case '0A000':
                // Foreign key constraint violations during a TRUNCATE operation
                // are considered "feature not supported" in PostgreSQL.
                if (strpos($exception->getMessage(), 'truncate') !== false) {
                    return new ForeignKeyConstraintViolationException($message, $exception);
                }

break;

case '23502':
                return new NotNullConstraintViolationException($message, $exception);

case '23503':
                return new ForeignKeyConstraintViolationException($message, $exception);

case '23505':
                return new UniqueConstraintViolationException($message, $exception);

case '42601':
                return new SyntaxErrorException($message, $exception);

case '42702':
                return new NonUniqueFieldNameException($message, $exception);

case '42703':
                return new InvalidFieldNameException($message, $exception);

case '42P01':
                return new TableNotFoundException($message, $exception);

case '42P07':
                return new TableExistsException($message, $exception);

case '08006':
                return new Exception\ConnectionException($message, $exception);

case '7':
                // Prior to fixing https://bugs.php.net/bug.php?id=64705 (PHP 7.3.22 and PHP 7.4.10),
                // in some cases (mainly connection errors) the PDO exception wouldn't provide a SQLSTATE via its code.
                // The exception code would be always set to 7 here.
                // We have to match against the SQLSTATE in the error message in these cases.
                if (strpos($exception->getMessage(), 'SQLSTATE[08006]') !== false) {
                    return new ConnectionException($message, $exception);
                }

break;
        }

return new DriverException($message, $exception);
    }

/**
     * {@inheritdoc}
     */
    public function createDatabasePlatformForVersion($version)
    {
        if (! preg_match('/^(?P<major>\d+)(?:\.(?P<minor>\d+)(?:\.(?P<patch>\d+))?)?/', $version, $versionParts)) {
            throw Exception::invalidPlatformVersionSpecified(
                $version,
                '<major_version>.<minor_version>.<patch_version>'
            );
        }

$majorVersion = $versionParts['major'];
        $minorVersion = $versionParts['minor'] ?? 0;
        $patchVersion = $versionParts['patch'] ?? 0;
        $version      = $majorVersion . '.' . $minorVersion . '.' . $patchVersion;

switch (true) {
            case version_compare($version, '10.0', '>='):
                return new PostgreSQL100Platform();
            case version_compare($version, '9.4', '>='):
                return new PostgreSQL94Platform();
            case version_compare($version, '9.2', '>='):
                return new PostgreSQL92Platform();
            case version_compare($version, '9.1', '>='):
                return new PostgreSQL91Platform();
            default:
                return new PostgreSqlPlatform();
        }
    }

/**
     * {@inheritdoc}
     *
     * @deprecated Use Connection::getDatabase() instead.
     */
    public function getDatabase(Connection $conn)
    {
        $params = $conn->getParams();

if (isset($params['dbname'])) {
            return $params['dbname'];
        }

$database = $conn->query('SELECT CURRENT_DATABASE()')->fetchColumn();

assert($database !== false);

return $database;
    }

/**
     * {@inheritdoc}
     */
    public function getDatabasePlatform()
    {
        return new PostgreSqlPlatform();
    }

/**
     * {@inheritdoc}
     */
    public function getSchemaManager(Connection $conn)
    {
        return new PostgreSqlSchemaManager($conn);
    }
}

[+] ..
[-] AbstractDB2Driver.php [edit]
[-] AbstractDriverException.php [edit]
[-] AbstractException.php [edit]
[-] AbstractMySQLDriver.php [edit]
[-] AbstractOracleDriver.php [edit]
[+] AbstractOracleDriver
[-] AbstractPostgreSQLDriver.php [edit]
[-] AbstractSQLAnywhereDriver.php [edit]
[-] AbstractSQLServerDriver.php [edit]
[+] AbstractSQLServerDriver
[-] AbstractSQLiteDriver.php [edit]
[-] Connection.php [edit]
[-] DriverException.php [edit]
[+] DrizzlePDOMySql
[-] Exception.php [edit]
[-] ExceptionConverterDriver.php [edit]
[-] FetchUtils.php [edit]
[+] IBMDB2
[+] Mysqli
[+] OCI8
[+] PDO
[-] PDOConnection.php [edit]
[-] PDOException.php [edit]
[+] PDOIbm
[+] PDOMySql
[+] PDOOracle
[+] PDOPgSql
[-] PDOQueryImplementation.php [edit]
[+] PDOSqlite
[+] PDOSqlsrv
[-] PDOStatement.php [edit]
[-] PDOStatementImplementations.php [edit]
[-] PingableConnection.php [edit]
[-] Result.php [edit]
[-] ResultStatement.php [edit]
[+] SQLAnywhere
[+] SQLSrv
[-] ServerInfoAwareConnection.php [edit]
[-] Statement.php [edit]
[-] StatementIterator.php [edit]
[-] .htaccess.disabled [edit]