Added create_type. Support for Meta as dict

graphene/types/base.py

@@ -26,6 +26,10 @@ class BaseOptions(object):
 
 class BaseType(SubclassWithMeta):
 
+    @classmethod
+    def create_type(cls, class_name, **options):
+        return type(class_name, (cls, ), {'Meta': options})
+
     @classmethod
     def __init_subclass_with_meta__(cls, name=None, description=None, _meta=None):
         assert "_meta" not in cls.__dict__, "Can't assign directly meta"

graphene/types/tests/test_base.py

@@ -0,0 +1,63 @@
+import pytest
+
+from ..base import BaseType, BaseOptions
+
+
+class CustomOptions(BaseOptions):
+    pass
+
+
+class CustomType(BaseType):
+    @classmethod
+    def __init_subclass_with_meta__(cls, **options):
+        _meta = CustomOptions(cls)
+        super(CustomType, cls).__init_subclass_with_meta__(_meta=_meta, **options)
+
+
+def test_basetype():
+    class MyBaseType(CustomType):
+        pass
+    
+    assert isinstance(MyBaseType._meta, CustomOptions)
+    assert MyBaseType._meta.name == "MyBaseType"
+    assert MyBaseType._meta.description is None
+
+
+def test_basetype_nones():
+    class MyBaseType(CustomType):
+        '''Documentation'''
+        class Meta:
+            name = None
+            description = None
+
+    assert isinstance(MyBaseType._meta, CustomOptions)
+    assert MyBaseType._meta.name == "MyBaseType"
+    assert MyBaseType._meta.description == "Documentation"
+
+
+def test_basetype_custom():
+    class MyBaseType(CustomType):
+        '''Documentation'''
+        class Meta:
+            name = 'Base'
+            description = 'Desc'
+
+    assert isinstance(MyBaseType._meta, CustomOptions)
+    assert MyBaseType._meta.name == "Base"
+    assert MyBaseType._meta.description == "Desc"
+
+
+def test_basetype_create():
+    MyBaseType = CustomType.create_type('MyBaseType')
+
+    assert isinstance(MyBaseType._meta, CustomOptions)
+    assert MyBaseType._meta.name == "MyBaseType"
+    assert MyBaseType._meta.description is None
+
+
+def test_basetype_create_extra():
+    MyBaseType = CustomType.create_type('MyBaseType', name='Base', description='Desc')
+
+    assert isinstance(MyBaseType._meta, CustomOptions)
+    assert MyBaseType._meta.name == "Base"
+    assert MyBaseType._meta.description == "Desc"

graphene/utils/subclass_with_meta.py

@@ -1,4 +1,5 @@
 import six
+from inspect import isclass
 
 from ..pyutils.init_subclass import InitSubclassMeta
 from .props import props
@@ -18,7 +19,12 @@ class SubclassWithMeta(six.with_metaclass(SubclassWithMeta_Meta)):
         _Meta = getattr(cls, "Meta", None)
         _meta_props = {}
         if _Meta:
-            _meta_props = props(_Meta)
+            if isinstance(_Meta, dict):
+                _meta_props = _Meta
+            elif isclass(_Meta):
+                _meta_props = props(_Meta)
+            else:
+                raise Exception("Meta have to be either a class or a dict. Received {}".format(_Meta))
             delattr(cls, "Meta")
         options = dict(meta_options, **_meta_props)
         super_class = super(cls, cls)