Fix default MySQL charset with doctrine/dbal > 2 (#1481)

Co-authored-by: Grégoire Paris <postmaster@greg0ire.fr>
Co-authored-by: Gabriel Ostrolucký <gabriel.ostrolucky@gmail.com>

ConnectionFactory.php

@@ -5,11 +5,12 @@
 use Doctrine\Common\EventManager;
 use Doctrine\DBAL\Configuration;
 use Doctrine\DBAL\Connection;
-use Doctrine\DBAL\Driver\AbstractMySQLDriver;
 use Doctrine\DBAL\DriverManager;
 use Doctrine\DBAL\Exception as DBALException;
 use Doctrine\DBAL\Exception\DriverException;
+use Doctrine\DBAL\Platforms\AbstractMySQLPlatform;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Platforms\MySqlPlatform;
 use Doctrine\DBAL\Types\Type;
 
 use function array_merge;
@@ -71,9 +72,11 @@ public function createConnection(array $params, ?Configuration $config = null, ?
             $connection = DriverManager::getConnection($params, $config, $eventManager);
             $params     = $this->addDatabaseSuffix(array_merge($connection->getParams(), $overriddenOptions));
             $driver     = $connection->getDriver();
+            $platform   = $driver->getDatabasePlatform();
 
             if (! isset($params['charset'])) {
-                if ($driver instanceof AbstractMySQLDriver) {
+                /** @psalm-suppress UndefinedClass AbstractMySQLPlatform exists since DBAL 3.x only */
+                if ($platform instanceof AbstractMySQLPlatform || $platform instanceof MySqlPlatform) {
                     $params['charset'] = 'utf8mb4';
 
                     /* PARAM_ASCII_STR_ARRAY is defined since doctrine/dbal 3.3

Tests/ConnectionFactoryTest.php

@@ -13,14 +13,13 @@
 use Doctrine\DBAL\Exception\DriverException;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Platforms\MySQLPlatform;
+use Doctrine\DBAL\Platforms\SqlitePlatform;
 use Doctrine\DBAL\Schema\AbstractSchemaManager;
 use Exception;
-use Throwable;
 
 use function array_intersect_key;
 use function class_exists;
 use function defined;
-use function strpos;
 
 // Compatibility with DBAL < 3
 class_exists(\Doctrine\DBAL\Platforms\MySqlPlatform::class);
@@ -47,19 +46,16 @@ public function testContainer(): void
 
         try {
             $factory->createConnection($params, $config, $eventManager, $mappingTypes);
-        } catch (Throwable $e) {
-            $this->assertTrue(strpos($e->getMessage(), 'can circumvent this by setting') > 0);
-
-            throw $e;
         } finally {
             FakeDriver::$exception = null;
         }
     }
 
-    public function testDefaultCharset(): void
+    public function testDefaultCharsetNonMySql(): void
     {
-        $factory = new ConnectionFactory([]);
-        $params  = [
+        FakeDriver::$platform = new SqlitePlatform();
+        $factory              = new ConnectionFactory([]);
+        $params               = [
             'driverClass' => FakeDriver::class,
             'wrapperClass' => FakeConnection::class,
         ];

psalm.xml.dist

@@ -45,5 +45,13 @@
                 <file name="Tests/ConnectionFactoryTest.php"/>
             </errorLevel>
         </InvalidArrayOffset>
+        <UndefinedDocblockClass>
+            <errorLevel type="suppress">
+                <!-- https://github.com/symfony/symfony/issues/45609 -->
+                <referencedClass name="UnitEnum" />
+                <directory name="DependencyInjection"/>
+                <directory name="Tests/DependencyInjection"/>
+            </errorLevel>
+        </UndefinedDocblockClass>
     </issueHandlers>
 </psalm>