doctrine-dbal: support Result->fetchOne() type inference

Author: clxmstaab

.phpstan-dba.cache

@@ -21,14 +21,24 @@
 
 final class DoctrineResultDynamicReturnTypeExtension implements DynamicMethodReturnTypeExtension
 {
+    public const METHODS = [
+        'fetchone',
+        'columncount',
+        'fetchfirstcolumn',
+        'fetchnumeric',
+        'fetchallnumeric',
+        'fetchassociative',
+        'fetchallassociative',
+    ];
+
     public function getClass(): string
     {
         return Result::class;
     }
 
     public function isMethodSupported(MethodReflection $methodReflection): bool
     {
-        return \in_array(strtolower($methodReflection->getName()), ['columncount', 'fetchfirstcolumn', 'fetchnumeric', 'fetchallnumeric', 'fetchassociative', 'fetchallassociative'], true);
+        return \in_array(strtolower($methodReflection->getName()), self::METHODS, true);
     }
 
     public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type

src/Extensions/DoctrineResultDynamicReturnTypeExtension.php

@@ -13,6 +13,9 @@ public function foo(Connection $conn)
         $result = $conn->query('SELECT email, adaid, gesperrt, freigabe1u1 FROM ada');
         assertType('Doctrine\DBAL\Result<array{email: string, 0: string, adaid: int<0, 4294967295>, 1: int<0, 4294967295>, gesperrt: int<-128, 127>, 2: int<-128, 127>, freigabe1u1: int<-128, 127>, 3: int<-128, 127>}>', $result);
 
+        $fetch = $result->fetchOne();
+        assertType('string', $fetch);
+
         $fetch = $result->fetchNumeric();
         assertType('array{string, int<0, 4294967295>, int<-128, 127>, int<-128, 127>}|false', $fetch);