silverstripe-framework/tests/php/ORM/Utf8/Utf8TestHelper.php
2022-07-28 13:21:23 +12:00

94 lines
2.8 KiB
PHP

<?php
namespace SilverStripe\Tests\ORM\Utf8;
use SilverStripe\Dev\TestOnly;
use SilverStripe\ORM\DB;
class Utf8TestHelper implements TestOnly
{
/**
* @var string|null
*/
private $dbVersion = null;
public function getUpdatedUtfCharsetForCurrentDB(string $charset): string
{
if ($charset !== 'utf8') {
return $charset;
}
return $this->isMySqlGte80() || $this->isMariaDBGte106() ? 'utf8mb3' : 'utf8';
}
public function getUpdatedUtfCollationForCurrentDB(string $collation): string
{
if ($collation === 'utf8_general_ci') {
return $this->isMariaDBGte106() || $this->isMySqlGte8030()
? 'utf8mb3_general_ci' : 'utf8_general_ci';
}
if ($collation === 'utf8_unicode_520_ci') {
return $this->isMariaDBGte106() || $this->isMySqlGte8030()
? 'utf8mb3_unicode_520_ci' : 'utf8_unicode_520_ci';
}
return $collation;
}
/**
* MySQL has used utf8 as an alias for utf8mb3
* Beginning with MySQL 8.0.28, utf8mb3 is used
* https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf8mb3.html
*/
private function isMySqlGte80(): bool
{
// Example MySQL version: 8.0.29
if (preg_match('#^([0-9]+)\.[0-9]+\.[0-9]+$#', $this->getDBVersion(), $m)) {
return (int) $m[1] >= 8;
}
return false;
}
/**
* Starting with 8.0.30, utf8mb3 is reported for the collation as well
* https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-30.html
*/
private function isMySqlGte8030(): bool
{
// Example MySQL version: 8.0.29
if (preg_match('#^([0-9]+)\.([0-9]+)\.([0-9]+)$#', $this->getDBVersion(), $m)) {
if ((int) $m[1] >= 8) {
if ((int) $m[2] === 0) {
if ((int) $m[3] >= 30) {
return true;
}
} else {
return true;
}
}
}
return false;
}
/**
* Until MariaDB 10.5, utf8mb3 was an alias for utf8.
* From MariaDB 10.6, utf8 is by default an alias for utf8mb3
* https://mariadb.com/kb/en/unicode/
*/
private function isMariaDBGte106(): bool
{
// Example mariadb version: 5.5.5-10.6.8-mariadb-1:10.6.8+maria~focal
if (preg_match('#([0-9]+)\.([0-9]+)\.[0-9]+-mariadb#', $this->getDBVersion(), $m)) {
return (int) $m[1] >= 11 || ((int) $m[1] >= 10 && (int) $m[2] >= 6);
}
return false;
}
private function getDBVersion(): string
{
if (is_null($this->dbVersion)) {
$this->dbVersion = strtolower(DB::get_conn()->getVersion());
}
return $this->dbVersion;
}
}