Deprecate empty index name

UPGRADE.md

@@ -40,7 +40,8 @@ The `Sequence::isAutoIncrementsFor()` method has been deprecated.
 
 ## Deprecated using invalid database object names
 
-Using the following objects with an empty name is deprecated: `Column`, `View`, `Sequence`, `Identifier`.
+Using the following objects with an empty name is deprecated: `Table`, `Column`, `Index`, `View`, `Sequence`,
+`Identifier`.
 
 Using the following objects with a qualified name is deprecated: `Column`, `ForeignKeyConstraint`, `Index`, `Schema`,
 `UniqueConstraint`. If the object name contains a dot, the name should be quoted.

src/Platforms/AbstractMySQLPlatform.php

@@ -237,21 +237,21 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
     {
         $queryFields = $this->getColumnDeclarationListSQL($columns);
 
-        if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
+        if (! empty($options['uniqueConstraints'])) {
             foreach ($options['uniqueConstraints'] as $definition) {
                 $queryFields .= ', ' . $this->getUniqueConstraintDeclarationSQL($definition);
             }
         }
 
         // add all indexes
-        if (isset($options['indexes']) && ! empty($options['indexes'])) {
+        if (! empty($options['indexes'])) {
             foreach ($options['indexes'] as $definition) {
                 $queryFields .= ', ' . $this->getIndexDeclarationSQL($definition);
             }
         }
 
         // attach all primary keys
-        if (isset($options['primary']) && ! empty($options['primary'])) {
+        if (! empty($options['primary'])) {
             $keyColumns   = array_unique(array_values($options['primary']));
             $queryFields .= ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
         }

src/Platforms/AbstractPlatform.php

@@ -987,17 +987,17 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
     {
         $columnListSql = $this->getColumnDeclarationListSQL($columns);
 
-        if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
+        if (! empty($options['uniqueConstraints'])) {
             foreach ($options['uniqueConstraints'] as $definition) {
                 $columnListSql .= ', ' . $this->getUniqueConstraintDeclarationSQL($definition);
             }
         }
 
-        if (isset($options['primary']) && ! empty($options['primary'])) {
+        if (! empty($options['primary'])) {
             $columnListSql .= ', PRIMARY KEY(' . implode(', ', array_unique(array_values($options['primary']))) . ')';
         }
 
-        if (isset($options['indexes']) && ! empty($options['indexes'])) {
+        if (! empty($options['indexes'])) {
             foreach ($options['indexes'] as $definition) {
                 $columnListSql .= ', ' . $this->getIndexDeclarationSQL($definition);
             }

src/Platforms/PostgreSQLPlatform.php

@@ -385,7 +385,7 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
     {
         $queryFields = $this->getColumnDeclarationListSQL($columns);
 
-        if (isset($options['primary']) && ! empty($options['primary'])) {
+        if (! empty($options['primary'])) {
             $keyColumns   = array_unique(array_values($options['primary']));
             $queryFields .= ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
         }
@@ -396,7 +396,7 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
 
         $sql = [$query];
 
-        if (isset($options['indexes']) && ! empty($options['indexes'])) {
+        if (! empty($options['indexes'])) {
             foreach ($options['indexes'] as $index) {
                 $sql[] = $this->getCreateIndexSQL($index, $name);
             }

src/Platforms/SQLServerPlatform.php

@@ -208,13 +208,13 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
 
         $columnListSql = $this->getColumnDeclarationListSQL($columns);
 
-        if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
+        if (! empty($options['uniqueConstraints'])) {
             foreach ($options['uniqueConstraints'] as $definition) {
                 $columnListSql .= ', ' . $this->getUniqueConstraintDeclarationSQL($definition);
             }
         }
 
-        if (isset($options['primary']) && ! empty($options['primary'])) {
+        if (! empty($options['primary'])) {
             $flags = '';
             if (isset($options['primary_index']) && $options['primary_index']->hasFlag('nonclustered')) {
                 $flags = ' NONCLUSTERED';
@@ -235,7 +235,7 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
 
         $sql = [$query];
 
-        if (isset($options['indexes']) && ! empty($options['indexes'])) {
+        if (! empty($options['indexes'])) {
             foreach ($options['indexes'] as $index) {
                 $sql[] = $this->getCreateIndexSQL($index, $name);
             }

src/Platforms/SQLitePlatform.php

@@ -273,7 +273,7 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
     {
         $queryFields = $this->getColumnDeclarationListSQL($columns);
 
-        if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
+        if (! empty($options['uniqueConstraints'])) {
             foreach ($options['uniqueConstraints'] as $definition) {
                 $queryFields .= ', ' . $this->getUniqueConstraintDeclarationSQL($definition);
             }
@@ -300,13 +300,13 @@ protected function _getCreateTableSQL(string $name, array $columns, array $optio
             return $query;
         }
 
-        if (isset($options['indexes']) && ! empty($options['indexes'])) {
+        if (! empty($options['indexes'])) {
             foreach ($options['indexes'] as $indexDef) {
                 $query[] = $this->getCreateIndexSQL($indexDef, $name);
             }
         }
 
-        if (isset($options['unique']) && ! empty($options['unique'])) {
+        if (! empty($options['unique'])) {
             foreach ($options['unique'] as $indexDef) {
                 $query[] = $this->getCreateIndexSQL($indexDef, $name);
             }

src/Schema/Index.php

@@ -17,8 +17,8 @@
 use function count;
 use function strtolower;
 
-/** @extends AbstractOptionallyNamedObject<UnqualifiedName> */
-class Index extends AbstractOptionallyNamedObject
+/** @extends AbstractNamedObject<UnqualifiedName> */
+class Index extends AbstractNamedObject
 {
     /**
      * Asset identifier instances of the column names the index is associated with.
@@ -51,7 +51,7 @@ public function __construct(
         array $flags = [],
         private readonly array $options = [],
     ) {
-        parent::__construct($name);
+        parent::__construct($name ?? '');
 
         $this->_isUnique  = $isUnique || $isPrimary;
         $this->_isPrimary = $isPrimary;

tests/Schema/IndexTest.php

@@ -4,14 +4,16 @@
 
 namespace Doctrine\DBAL\Tests\Schema;
 
-use Doctrine\DBAL\Exception;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Name\Identifier;
+use Doctrine\Deprecations\PHPUnit\VerifyDeprecations;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 
 class IndexTest extends TestCase
 {
+    use VerifyDeprecations;
+
     /** @param mixed[] $options */
     private function createIndex(bool $unique = false, bool $primary = false, array $options = []): Index
     {
@@ -174,21 +176,24 @@ public function testOptions(): void
         self::assertSame(['where' => 'name IS NULL'], $idx2->getOptions());
     }
 
-    /** @throws Exception */
-    public function testGetNonNullObjectName(): void
+    public function testEmptyName(): void
     {
-        $index = new Index('idx_user_id', ['user_id']);
-        $name  = $index->getObjectName();
+        $this->expectDeprecationWithIdentifier('https://github.com/doctrine/dbal/pull/6646');
 
-        self::assertNotNull($name);
-        self::assertEquals(Identifier::unquoted('idx_user_id'), $name->getIdentifier());
+        new Index(null, ['user_id']);
     }
 
-    /** @throws Exception */
-    public function testGetNullObjectName(): void
+    public function testQualifiedName(): void
     {
-        $index = new Index(null, ['user_id']);
+        $this->expectDeprecationWithIdentifier('https://github.com/doctrine/dbal/pull/6592');
+
+        new Index('auth.idx_user_id', ['user_id']);
+    }
+
+    public function testGetObjectName(): void
+    {
+        $index = new Index('idx_user_id', ['user_id']);
 
-        self::assertNull($index->getObjectName());
+        self::assertEquals(Identifier::unquoted('idx_user_id'), $index->getObjectName()->getIdentifier());
     }
 }