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<?php
/**
* This file is part of the Dibi, smart database abstraction layer (https://dibiphp.com)
* Copyright (c) 2005 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
/**
* Static container class for Dibi connections.
*
* @method static void disconnect()
* @method static Dibi\Result query(...$args)
* @method static Dibi\Result nativeQuery(...$args)
* @method static bool test(...$args)
* @method static Dibi\DataSource dataSource(...$args)
* @method static Dibi\Row|null fetch(...$args)
* @method static array fetchAll(...$args)
* @method static mixed fetchSingle(...$args)
* @method static array fetchPairs(...$args)
* @method static int getAffectedRows()
* @method static int getInsertId(string $sequence = null)
* @method static void begin(string $savepoint = null)
* @method static void commit(string $savepoint = null)
* @method static void rollback(string $savepoint = null)
* @method static mixed transaction(callable $callback)
* @method static Dibi\Reflection\Database getDatabaseInfo()
* @method static Dibi\Fluent command()
* @method static Dibi\Fluent select(...$args)
* @method static Dibi\Fluent update(string|string[] $table, array $args)
* @method static Dibi\Fluent insert(string $table, array $args)
* @method static Dibi\Fluent delete(string $table)
* @method static Dibi\HashMap getSubstitutes()
* @method static int loadFile(string $file)
*/
class dibi
{
use Dibi\Strict;
public const
AFFECTED_ROWS = 'a',
IDENTIFIER = 'n';
/** version */
public const VERSION = '4.2.6';
/** sorting order */
public const
ASC = 'ASC',
DESC = 'DESC';
/** @var string|null Last SQL command @see dibi::query() */
public static $sql;
/** @var float|null Elapsed time for last query */
public static $elapsedTime;
/** @var float Elapsed time for all queries */
public static $totalTime;
/** @var int Number or queries */
public static $numOfQueries = 0;
/** @var Dibi\Connection[] Connection registry storage for Dibi\Connection objects */
private static $registry = [];
/** @var Dibi\Connection Current connection */
private static $connection;
/**
* Static class - cannot be instantiated.
*/
final public function __construct()
{
throw new LogicException('Cannot instantiate static class ' . static::class);
}
/********************* connections handling ****************d*g**/
/**
* Creates a new Connection object and connects it to specified database.
* @param array $config connection parameters
* @throws Dibi\Exception
*/
public static function connect($config = [], string $name = '0'): Dibi\Connection
{
return self::$connection = self::$registry[$name] = new Dibi\Connection($config, $name);
}
/**
* Returns true when connection was established.
*/
public static function isConnected(): bool
{
return (self::$connection !== null) && self::$connection->isConnected();
}
/**
* Retrieve active connection.
* @throws Dibi\Exception
*/
public static function getConnection(?string $name = null): Dibi\Connection
{
if ($name === null) {
if (self::$connection === null) {
throw new Dibi\Exception('Dibi is not connected to database.');
}
return self::$connection;
}
if (!isset(self::$registry[$name])) {
throw new Dibi\Exception("There is no connection named '$name'.");
}
return self::$registry[$name];
}
/**
* Sets connection.
*/
public static function setConnection(Dibi\Connection $connection): Dibi\Connection
{
return self::$connection = $connection;
}
/********************* monostate for active connection ****************d*g**/
/**
* Monostate for Dibi\Connection.
*/
public static function __callStatic(string $name, array $args)
{
return self::getConnection()->$name(...$args);
}
/********************* misc tools ****************d*g**/
/**
* Prints out a syntax highlighted version of the SQL command or Result.
* @param string|Dibi\Result $sql
* @param bool $return return output instead of printing it?
*/
public static function dump($sql = null, bool $return = false): ?string
{
return Dibi\Helpers::dump($sql, $return);
}
/**
* Strips microseconds part.
*/
public static function stripMicroseconds(DateTimeInterface $dt): DateTimeInterface
{
$class = get_class($dt);
return new $class($dt->format('Y-m-d H:i:s'), $dt->getTimezone());
}
}
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