Fix length type in MySQLSchemaManager with ATTR_STRINGIFY_FETCHES enabled (#7028)

Fixes #7027

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|      Q       |   A
|------------- | -----------
| Type         | bug
| Fixed issues | #7027

#### Summary

The length var was type string, which broke on the constructor of
`Column`

Author: keulinho

.github/workflows/continuous-integration.yml

@@ -182,6 +182,10 @@ jobs:
             php-version: "8.2"
             mysql-version: "9.1"
             extension: "mysqli"
+          - config-file-suffix: "-stringify_fetches"
+            php-version: "8.2"
+            mysql-version: "9.1"
+            extension: "pdo_mysql"
           - php-version: "8.2"
             mysql-version: "9.1"
             extension: "mysqli"

ci/github/phpunit/pdo_mysql-stringify_fetches.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="../../../vendor/phpunit/phpunit/phpunit.xsd"
+         colors="true"
+         beStrictAboutOutputDuringTests="true"
+         failOnRisky="true"
+         failOnWarning="true"
+         failOnNotice="true"
+         failOnPhpunitDeprecation="true"
+         displayDetailsOnTestsThatTriggerErrors="true"
+         displayDetailsOnTestsThatTriggerDeprecations="true"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+
+        <var name="db_driver" value="pdo_mysql"/>
+        <!-- see \PDO::ATTR_STRINGIFY_FETCHES-->
+        <var name="db_driver_option_17" value="true"/>
+        <var name="db_host" value="127.0.0.1" />
+        <var name="db_port" value="3306"/>
+        <var name="db_user" value="root" />
+        <var name="db_dbname" value="doctrine_tests" />
+        <var name="db_charset" value="utf8mb4" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Doctrine DBAL Test Suite">
+            <directory>../../../tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <source>
+        <include>
+            <directory>../../../src</directory>
+        </include>
+    </source>
+</phpunit>

src/Schema/MySQLSchemaManager.php

@@ -130,12 +130,12 @@ protected function _getPortableTableColumnDefinition(array $tableColumn): Column
         switch ($dbType) {
             case 'char':
             case 'varchar':
-                $length = $tableColumn['character_maximum_length'];
+                $length = (int) $tableColumn['character_maximum_length'];
                 break;
 
             case 'binary':
             case 'varbinary':
-                $length = $tableColumn['character_octet_length'];
+                $length = (int) $tableColumn['character_octet_length'];
                 break;
 
             case 'tinytext':
@@ -167,10 +167,10 @@ protected function _getPortableTableColumnDefinition(array $tableColumn): Column
             case 'real':
             case 'numeric':
             case 'decimal':
-                $precision = $tableColumn['numeric_precision'];
+                $precision = (int) $tableColumn['numeric_precision'];
 
                 if (isset($tableColumn['numeric_scale'])) {
-                    $scale = $tableColumn['numeric_scale'];
+                    $scale = (int) $tableColumn['numeric_scale'];
                 }
 
                 break;

tests/Functional/Query/QueryBuilderTest.php

@@ -24,6 +24,7 @@
 use Doctrine\DBAL\Tests\FunctionalTestCase;
 use Doctrine\DBAL\Tests\TestUtil;
 use Doctrine\DBAL\Types\Types;
+use PDO;
 
 use function array_change_key_case;
 
@@ -555,24 +556,21 @@ public function testPlatformDoesNotSupportCTE(): void
      */
     private function prepareExpectedRows(array $rows): array
     {
-        if (! TestUtil::isDriverOneOf('ibm_db2', 'pdo_oci', 'pdo_sqlsrv', 'oci8')) {
-            return $rows;
-        }
-
-        if (! TestUtil::isDriverOneOf('ibm_db2')) {
+        if (
+            TestUtil::isDriverOneOf('pdo_oci', 'pdo_sqlsrv', 'oci8')
+            || (TestUtil::getConnectionParams()['driverOptions'][PDO::ATTR_STRINGIFY_FETCHES] ?? false) === true
+        ) {
             foreach ($rows as &$row) {
                 foreach ($row as &$value) {
                     $value = (string) $value;
                 }
             }
         }
 
-        if (! TestUtil::isDriverOneOf('ibm_db2', 'pdo_oci', 'oci8')) {
-            return $rows;
-        }
-
-        foreach ($rows as &$row) {
-            $row = array_change_key_case($row, CASE_UPPER);
+        if (TestUtil::isDriverOneOf('ibm_db2', 'pdo_oci', 'oci8')) {
+            foreach ($rows as &$row) {
+                $row = array_change_key_case($row, CASE_UPPER);
+            }
         }
 
         return $rows;

tests/Functional/Schema/MySQLSchemaManagerTest.php

@@ -21,6 +21,7 @@
 use Doctrine\DBAL\Tests\Functional\Schema\MySQL\CustomType;
 use Doctrine\DBAL\Tests\Functional\Schema\MySQL\PointType;
 use Doctrine\DBAL\Tests\TestUtil;
+use Doctrine\DBAL\Types\BinaryType;
 use Doctrine\DBAL\Types\BlobType;
 use Doctrine\DBAL\Types\FloatType;
 use Doctrine\DBAL\Types\JsonType;
@@ -546,6 +547,27 @@ public function testListUnsignedFloatTypeColumns(): void
         self::assertTrue($columns['col_smallfloat_unsigned']->getUnsigned());
     }
 
+    public function testConfigurableLengthColumns(): void
+    {
+        $table = Table::editor()
+            ->setUnquotedName('test_configurable_length_columns')
+            ->setColumns(
+                Column::editor()
+                    ->setUnquotedName('col_binary')
+                    ->setTypeName(Types::BINARY)
+                    ->setLength(16)
+                    ->create(),
+            )
+            ->create();
+
+        $this->dropAndCreateTable($table);
+
+        $columns = $this->schemaManager->listTableColumns('test_configurable_length_columns');
+
+        self::assertInstanceOf(BinaryType::class, $columns['col_binary']->getType());
+        self::assertSame(16, $columns['col_binary']->getLength());
+    }
+
     public function testJsonColumnType(): void
     {
         $table = Table::editor()