space class for uppercased strings

Author: nekufa

src/Mapper.php

@@ -133,7 +133,7 @@ public function getChanges(): array
 
     public function getClassSpace(int|string $class): int|string
     {
-        if (!is_integer($class) && class_exists($class)) {
+        if (!is_integer($class) && !ctype_lower($class) && class_exists($class)) {
             if (!array_key_exists($class, $this->classNames)) {
                 $this->registerClass($class);
             }

tests/MapperTest.php

@@ -48,6 +48,18 @@ public function testClassBased()
         $this->assertEquals($row, $mapper->findOne('constructor'));
     }
 
+    public function testAttribute()
+    {
+        $mapper = $this->createMapper();
+        $attribute = $mapper->createSpace('attribute');
+        $attribute->addProperty('key', 'string');
+        $attribute->addProperty('value', 'string');
+        $attribute->addIndex(['key']);
+
+        $attribute = $mapper->findOrCreate('attribute', ['key' => 'tester']);
+        $this->assertNotNull($attribute);
+    }
+
     public function testIdleField()
     {
         $mapper = $this->createMapper();