Fix driver name
This commit is contained in:
Visman
parent
6992be0691
commit
728c5c4015
1 changed files with 0 additions and 588 deletions
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@ -1,588 +0,0 @@
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<?php
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/**
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* This file is part of the ForkBB <https://github.com/forkbb>.
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*
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* @copyright (c) Visman <mio.visman@yandex.ru, https://github.com/MioVisman>
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* @license The MIT License (MIT)
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*/
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declare(strict_types=1);
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namespace ForkBB\Core\DB;
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use ForkBB\Core\DB;
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use PDO;
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use PDOStatement;
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use PDOException;
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class Mysql
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{
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/**
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* @var DB
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*/
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protected $db;
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/**
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* Префикс для таблиц базы
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* @var string
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*/
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protected $dbPrefix;
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/**
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* Массив замены типов полей таблицы
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* @var array
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*/
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protected $dbTypeRepl = [
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'%^SERIAL$%i' => 'INT(10) UNSIGNED AUTO_INCREMENT',
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];
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/**
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* Подстановка типов полей для карты БД
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* @var array
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*/
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protected $types = [
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'bool' => 'b',
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'boolean' => 'b',
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'tinyint' => 'i',
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'smallint' => 'i',
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'mediumint' => 'i',
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'int' => 'i',
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'integer' => 'i',
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'bigint' => 'i',
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'decimal' => 'i',
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'dec' => 'i',
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'float' => 'i',
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'double' => 'i',
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];
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public function __construct(DB $db, string $prefix)
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{
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$this->db = $db;
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$this->testStr($prefix);
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$this->dbPrefix = $prefix;
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}
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/**
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* Перехват неизвестных методов
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*/
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public function __call(string $name, array $args)
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{
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throw new PDOException("Method '{$name}' not found in DB driver.");
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}
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/**
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* Проверяет строку на допустимые символы
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*/
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protected function testStr(string $str): void
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{
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if (\preg_match('%[^a-zA-Z0-9_]%', $str)) {
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throw new PDOException("Name '{$str}' have bad characters.");
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}
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}
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/**
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* Операции над полями индексов: проверка, замена
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*/
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protected function replIdxs(array $arr): string
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{
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foreach ($arr as &$value) {
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if (\preg_match('%^(.*)\s*(\(\d+\))$%', $value, $matches)) {
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$this->testStr($matches[1]);
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$value = "`{$matches[1]}`{$matches[2]}";
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} else {
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$this->testStr($value);
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$value = "`{$value}`";
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}
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unset($value);
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}
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return \implode(',', $arr);
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}
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/**
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* Замена типа поля в соответствии с dbTypeRepl
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*/
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protected function replType(string $type): string
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{
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return \preg_replace(\array_keys($this->dbTypeRepl), \array_values($this->dbTypeRepl), $type);
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}
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/**
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* Конвертирует данные в строку для DEFAULT
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*/
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protected function convToStr(/* mixed */ $data): string
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{
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if (\is_string($data)) {
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return $this->db->quote($data);
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} elseif (\is_numeric($data)) {
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return (string) $data;
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} elseif (\is_bool($data)) {
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return $data ? 'true' : 'false';
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} else {
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throw new PDOException('Invalid data type for DEFAULT.');
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}
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}
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/**
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* Проверяет наличие таблицы в базе
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*/
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public function tableExists(string $table, bool $noPrefix = false): bool
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{
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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try {
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$vars = [
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':table' => $table,
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];
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$query = 'SELECT 1
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FROM INFORMATION_SCHEMA.TABLES
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ?s:table';
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$stmt = $this->db->query($query, $vars);
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$result = $stmt->fetch();
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$stmt->closeCursor();
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} catch (PDOException $e) {
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return false;
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}
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return ! empty($result);
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}
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/**
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* Проверяет наличие поля в таблице
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*/
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public function fieldExists(string $table, string $field, bool $noPrefix = false): bool
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{
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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try {
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$vars = [
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':table' => $table,
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':field' => $field,
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];
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$query = 'SELECT 1
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ?s:table AND COLUMN_NAME = ?s:field';
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$stmt = $this->db->query($query, $vars);
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$result = $stmt->fetch();
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$stmt->closeCursor();
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} catch (PDOException $e) {
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return false;
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}
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return ! empty($result);
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}
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/**
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* Проверяет наличие индекса в таблице
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*/
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public function indexExists(string $table, string $index, bool $noPrefix = false): bool
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{
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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$index = 'PRIMARY' == $index ? $index : $table . '_' . $index;
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try {
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$vars = [
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':table' => $table,
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':index' => $index,
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];
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$query = 'SELECT 1
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FROM INFORMATION_SCHEMA.STATISTICS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ?s:table AND INDEX_NAME = ?s:index';
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$stmt = $this->db->query($query, $vars);
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$result = $stmt->fetch();
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$stmt->closeCursor();
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} catch (PDOException $e) {
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return false;
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}
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return ! empty($result);
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}
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/**
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* Создает таблицу
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*/
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public function createTable(string $table, array $schema, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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$query = "CREATE TABLE IF NOT EXISTS `{$table}` (";
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foreach ($schema['FIELDS'] as $field => $data) {
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$this->testStr($field);
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// имя и тип
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$query .= "`{$field}` " . $this->replType($data[0]);
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// сравнение
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if (\preg_match('%^(?:CHAR|VARCHAR|TINYTEXT|TEXT|MEDIUMTEXT|LONGTEXT|ENUM|SET)%i', $data[0])) {
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$query .= ' CHARACTER SET utf8mb4 COLLATE utf8mb4_';
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if (
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isset($data[3])
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&& \is_string($data[3])
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) {
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$this->testStr($data[3]);
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$query .= $data[3];
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} else {
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$query .= 'unicode_ci';
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}
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}
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// не NULL
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if (empty($data[1])) {
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$query .= ' NOT NULL';
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}
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// значение по умолчанию
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if (isset($data[2])) {
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$query .= ' DEFAULT ' . $this->convToStr($data[2]);
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}
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$query .= ', ';
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}
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if (isset($schema['PRIMARY KEY'])) {
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$query .= 'PRIMARY KEY (' . $this->replIdxs($schema['PRIMARY KEY']) . '), ';
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}
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if (isset($schema['UNIQUE KEYS'])) {
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foreach ($schema['UNIQUE KEYS'] as $key => $fields) {
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$this->testStr($key);
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$query .= "UNIQUE `{$table}_{$key}` (" . $this->replIdxs($fields) . '), ';
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}
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}
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if (isset($schema['INDEXES'])) {
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foreach ($schema['INDEXES'] as $index => $fields) {
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$this->testStr($index);
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$query .= "INDEX `{$table}_{$index}` (" . $this->replIdxs($fields) . '), ';
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}
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}
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if (isset($schema['ENGINE'])) {
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$engine = $schema['ENGINE'];
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} else {
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// при отсутствии типа таблицы он определяется на основании типов других таблиц в базе
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$prefix = \str_replace('_', '\\_', $this->dbPrefix);
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$stmt = $this->db->query("SHOW TABLE STATUS LIKE '{$prefix}%'");
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$engine = [];
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while ($row = $stmt->fetch()) {
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if (isset($engine[$row['Engine']])) {
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++$engine[$row['Engine']];
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} else {
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$engine[$row['Engine']] = 1;
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}
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}
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// в базе нет таблиц
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if (empty($engine)) {
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$engine = 'MyISAM';
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} else {
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\arsort($engine);
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// берем тип наиболее часто встречаемый у имеющихся таблиц
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$engine = \array_keys($engine);
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$engine = \array_shift($engine);
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}
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}
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$this->testStr($engine);
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$query = \rtrim($query, ', ') . ") ENGINE={$engine} CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci";
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return false !== $this->db->exec($query);
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}
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/**
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* Удаляет таблицу
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*/
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public function dropTable(string $table, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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return false !== $this->db->exec("DROP TABLE IF EXISTS `{$table}`");
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}
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/**
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* Переименовывает таблицу
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*/
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public function renameTable(string $old, string $new, bool $noPrefix = false): bool
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{
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$this->testStr($old);
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$this->testStr($new);
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if (
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$this->tableExists($new, $noPrefix)
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&& ! $this->tableExists($old, $noPrefix)
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) {
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return true;
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}
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$old = ($noPrefix ? '' : $this->dbPrefix) . $old;
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$new = ($noPrefix ? '' : $this->dbPrefix) . $new;
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return false !== $this->db->exec("ALTER TABLE `{$old}` RENAME TO `{$new}`");
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}
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/**
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* Добавляет поле в таблицу
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*/
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public function addField(string $table, string $field, string $type, bool $allowNull, /* mixed */ $default = null, string $after = null, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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$this->testStr($field);
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if ($this->fieldExists($table, $field, $noPrefix)) {
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return true;
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}
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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$query = "ALTER TABLE `{$table}` ADD `{$field}` " . $this->replType($type);
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if (! $allowNull) {
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$query .= ' NOT NULL';
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}
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if (null !== $default) {
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$query .= ' DEFAULT ' . $this->convToStr($default);
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}
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if (null !== $after) {
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$this->testStr($after);
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$query .= " AFTER `{$after}`";
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}
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return false !== $this->db->exec($query);
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}
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/**
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* Модифицирует поле в таблице
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*/
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public function alterField(string $table, string $field, string $type, bool $allowNull, /* mixed */ $default = null, string $after = null, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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$this->testStr($field);
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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$query = "ALTER TABLE `{$table}` MODIFY `{$field}` " . $this->replType($type);
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if (! $allowNull) {
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$query .= ' NOT NULL';
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}
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if (null !== $default) {
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$query .= ' DEFAULT ' . $this->convToStr($default);
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}
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if (null !== $after) {
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$this->testStr($after);
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$query .= " AFTER `{$after}`";
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}
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return false !== $this->db->exec($query);
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}
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/**
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* Удаляет поле из таблицы
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*/
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public function dropField(string $table, string $field, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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$this->testStr($field);
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if (! $this->fieldExists($table, $field, $noPrefix)) {
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return true;
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}
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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return false !== $this->db->exec("ALTER TABLE `{$table}` DROP COLUMN `{$field}`");
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}
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/**
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* Переименование поля в таблице
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*/
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public function renameField(string $table, string $old, string $new, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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$this->testStr($old);
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$this->testStr($new);
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if (
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! $this->fieldExists($table, $old, $noPrefix)
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|| $this->fieldExists($table, $new, $noPrefix)
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) {
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return false;
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}
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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try {
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$vars = [
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':table' => $table,
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':field' => $old,
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];
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$query = 'SELECT COLUMN_DEFAULT, IS_NULLABLE, COLUMN_TYPE
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ?s:table AND COLUMN_NAME = ?s:field';
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$stmt = $this->db->query($query, $vars);
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$result = $stmt->fetch();
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$stmt->closeCursor();
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$type = $result['COLUMN_TYPE'];
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$allowNull = 'YES' == $result['IS_NULLABLE'];
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$default = $result['COLUMN_DEFAULT'];
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} catch (PDOException $e) {
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return false;
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}
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$query = "ALTER TABLE `{$table}` CHANGE COLUMN `{$old}` `{$new}` " . $this->replType($type);
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if (! $allowNull) {
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$query .= ' NOT NULL';
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}
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if (null !== $default) {
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$query .= ' DEFAULT ' . $this->convToStr($default);
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}
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return false !== $this->db->exec($query);
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}
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/**
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* Добавляет индекс в таблицу
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*/
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public function addIndex(string $table, string $index, array $fields, bool $unique = false, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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if ($this->indexExists($table, $index, $noPrefix)) {
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return true;
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}
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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$query = "ALTER TABLE `{$table}` ADD ";
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if ('PRIMARY' == $index) {
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$query .= 'PRIMARY KEY';
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} else {
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$index = $table . '_' . $index;
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$this->testStr($index);
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if ($unique) {
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$query .= "UNIQUE `{$index}`";
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} else {
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$query .= "INDEX `{$index}`";
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}
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}
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$query .= ' (' . $this->replIdxs($fields) . ')';
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return false !== $this->db->exec($query);
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}
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/**
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* Удаляет индекс из таблицы
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||||
*/
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||||
public function dropIndex(string $table, string $index, bool $noPrefix = false): bool
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{
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$this->testStr($table);
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if (! $this->indexExists($table, $index, $noPrefix)) {
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return true;
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}
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$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
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$query = "ALTER TABLE `{$table}` ";
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if ('PRIMARY' == $index) {
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$query .= "DROP PRIMARY KEY";
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||||
} else {
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||||
$index = $table . '_' . $index;
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||||
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$this->testStr($index);
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$query .= "DROP INDEX `{$index}`";
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}
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return false !== $this->db->exec($query);
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||||
}
|
||||
|
||||
/**
|
||||
* Очищает таблицу
|
||||
*/
|
||||
public function truncateTable(string $table, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
|
||||
return false !== $this->db->exec("TRUNCATE TABLE `{$table}`");
|
||||
}
|
||||
|
||||
/**
|
||||
* Возвращает статистику
|
||||
*/
|
||||
public function statistics(): array
|
||||
{
|
||||
$prefix = str_replace('_', '\\_', $this->dbPrefix);
|
||||
$stmt = $this->db->query("SHOW TABLE STATUS LIKE '{$prefix}%'");
|
||||
$records = $size = 0;
|
||||
$engine = [];
|
||||
|
||||
while ($row = $stmt->fetch()) {
|
||||
$records += $row['Rows'];
|
||||
$size += $row['Data_length'] + $row['Index_length'];
|
||||
if (isset($engine[$row['Engine']])) {
|
||||
++$engine[$row['Engine']];
|
||||
} else {
|
||||
$engine[$row['Engine']] = 1;
|
||||
}
|
||||
}
|
||||
|
||||
\arsort($engine);
|
||||
|
||||
$tmp = [];
|
||||
|
||||
foreach ($engine as $key => $val) {
|
||||
$tmp[] = "{$key}({$val})";
|
||||
}
|
||||
|
||||
$other = [];
|
||||
$stmt = $this->db->query("SHOW VARIABLES LIKE 'character\\_set\\_%'");
|
||||
|
||||
while ($row = $stmt->fetch(PDO::FETCH_NUM)) {
|
||||
$other[$row[0]] = $row[1];
|
||||
}
|
||||
|
||||
return [
|
||||
'db' => 'MySQL (PDO) ' . $this->db->getAttribute(PDO::ATTR_SERVER_VERSION) . ' : ' . implode(', ', $tmp),
|
||||
'records' => $records,
|
||||
'size' => $size,
|
||||
'server info' => $this->db->getAttribute(PDO::ATTR_SERVER_INFO),
|
||||
] + $other;
|
||||
}
|
||||
|
||||
/**
|
||||
* Формирует карту базы данных
|
||||
*/
|
||||
public function getMap(): array
|
||||
{
|
||||
$vars = [
|
||||
"{$this->dbPrefix}%",
|
||||
];
|
||||
$query = 'SELECT TABLE_NAME, COLUMN_NAME, DATA_TYPE
|
||||
FROM INFORMATION_SCHEMA.COLUMNS
|
||||
WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME LIKE ?s';
|
||||
|
||||
$stmt = $this->db->query($query, $vars);
|
||||
$result = [];
|
||||
$table = null;
|
||||
while ($row = $stmt->fetch()) {
|
||||
if ($table !== $row['TABLE_NAME']) {
|
||||
$table = $row['TABLE_NAME'];
|
||||
$tableNoPref = \substr($table, \strlen($this->dbPrefix));
|
||||
$result[$tableNoPref] = [];
|
||||
}
|
||||
$type = \strtolower($row['DATA_TYPE']);
|
||||
$result[$tableNoPref][$row['COLUMN_NAME']] = $this->types[$type] ?? 's';
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue