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<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Nette\Database\Drivers;
use Nette;
/**
* Supplemental Oracle database driver.
*/
class OciDriver implements Nette\Database\Driver
{
use Nette\SmartObject;
/** @var Nette\Database\Connection */
private $connection;
/** @var string Datetime format */
private $fmtDateTime;
public function initialize(Nette\Database\Connection $connection, array $options): void
{
$this->connection = $connection;
$this->fmtDateTime = $options['formatDateTime'] ?? 'U';
}
public function convertException(\PDOException $e): Nette\Database\DriverException
{
$code = $e->errorInfo[1] ?? null;
if (in_array($code, [1, 2299, 38911], true)) {
return Nette\Database\UniqueConstraintViolationException::from($e);
} elseif (in_array($code, [1400], true)) {
return Nette\Database\NotNullConstraintViolationException::from($e);
} elseif (in_array($code, [2266, 2291, 2292], true)) {
return Nette\Database\ForeignKeyConstraintViolationException::from($e);
} else {
return Nette\Database\DriverException::from($e);
}
}
/********************* SQL ****************d*g**/
public function delimite(string $name): string
{
// @see http://download.oracle.com/docs/cd/B10500_01/server.920/a96540/sql_elements9a.htm
return '"' . str_replace('"', '""', $name) . '"';
}
public function formatDateTime(\DateTimeInterface $value): string
{
return $value->format($this->fmtDateTime);
}
public function formatDateInterval(\DateInterval $value): string
{
throw new Nette\NotSupportedException;
}
public function formatLike(string $value, int $pos): string
{
throw new Nette\NotImplementedException;
}
public function applyLimit(string &$sql, ?int $limit, ?int $offset): void
{
if ($limit < 0 || $offset < 0) {
throw new Nette\InvalidArgumentException('Negative offset or limit.');
} elseif ($offset) {
// see http://www.oracle.com/technology/oramag/oracle/06-sep/o56asktom.html
$sql = 'SELECT * FROM (SELECT t.*, ROWNUM AS "__rnum" FROM (' . $sql . ') t '
. ($limit !== null ? 'WHERE ROWNUM <= ' . ($offset + $limit) : '')
. ') WHERE "__rnum" > ' . $offset;
} elseif ($limit !== null) {
$sql = 'SELECT * FROM (' . $sql . ') WHERE ROWNUM <= ' . $limit;
}
}
/********************* reflection ****************d*g**/
public function getTables(): array
{
$tables = [];
foreach ($this->connection->query('SELECT * FROM cat') as $row) {
if ($row[1] === 'TABLE' || $row[1] === 'VIEW') {
$tables[] = [
'name' => $row[0],
'view' => $row[1] === 'VIEW',
];
}
}
return $tables;
}
public function getColumns(string $table): array
{
throw new Nette\NotImplementedException;
}
public function getIndexes(string $table): array
{
throw new Nette\NotImplementedException;
}
public function getForeignKeys(string $table): array
{
throw new Nette\NotImplementedException;
}
public function getColumnTypes(\PDOStatement $statement): array
{
return [];
}
public function isSupported(string $item): bool
{
return $item === self::SUPPORT_SEQUENCE || $item === self::SUPPORT_SUBSELECT;
}
}
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