89 lines
2.2 KiB
PHP
89 lines
2.2 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Steuerkram;
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use PDO;
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use PDOException;
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class Database
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{
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private static ?PDO $instance = null;
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private static int $txDepth = 0;
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public static function get(): PDO
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{
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if (self::$instance === null) {
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$host = Config::get('db_host');
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$name = Config::get('db_name');
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$user = Config::get('db_user');
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$pass = Config::get('db_pass');
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$dsn = "mysql:host={$host};dbname={$name};charset=utf8mb4";
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self::$instance = new PDO($dsn, $user, $pass, [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_EMULATE_PREPARES => false,
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]);
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}
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return self::$instance;
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}
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// Convenience wrappers
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public static function query(string $sql, array $params = []): \PDOStatement
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{
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$stmt = self::get()->prepare($sql);
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$stmt->execute($params);
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return $stmt;
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}
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public static function fetchAll(string $sql, array $params = []): array
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{
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return self::query($sql, $params)->fetchAll();
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}
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public static function fetchOne(string $sql, array $params = []): array|false
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{
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return self::query($sql, $params)->fetch();
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}
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public static function execute(string $sql, array $params = []): int
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{
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$stmt = self::query($sql, $params);
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return $stmt->rowCount();
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}
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public static function lastInsertId(): string
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{
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return self::get()->lastInsertId();
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}
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public static function beginTransaction(): void
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{
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if (self::$txDepth === 0) {
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self::get()->beginTransaction();
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}
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self::$txDepth++;
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}
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public static function commit(): void
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{
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if (self::$txDepth > 0) {
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self::$txDepth--;
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}
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if (self::$txDepth === 0 && self::get()->inTransaction()) {
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self::get()->commit();
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}
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}
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public static function rollBack(): void
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{
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self::$txDepth = 0;
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if (self::get()->inTransaction()) {
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self::get()->rollBack();
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}
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}
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}
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