sqla: convert sqla-utils ScalarListType

graphene-sqlalchemy/graphene_sqlalchemy/converter.py

@@ -9,11 +9,14 @@ from graphene.types.json import JSONString
 from .fields import SQLAlchemyConnectionField
 
 try:
-    from sqlalchemy_utils.types.choice import ChoiceType
+    from sqlalchemy_utils import ChoiceType, ScalarListType
 except ImportError:
     class ChoiceType(object):
         pass
 
+    class ScalarListType(object):
+        pass
+
 
 def convert_sqlalchemy_relationship(relationship, registry):
     direction = relationship.direction
@@ -85,6 +88,11 @@ def convert_column_to_enum(type, column, registry=None):
     return Enum(name, type.choices, description=column.doc)
 
 
+@convert_sqlalchemy_type.register(ScalarListType)
+def convert_scalar_list_to_list(type, column, registry=None):
+    return List(String, description=column.doc)
+
+
 @convert_sqlalchemy_type.register(postgresql.ARRAY)
 def convert_postgres_array_to_list(type, column, registry=None):
     graphene_type = convert_sqlalchemy_type(column.type.item_type, column)

graphene-sqlalchemy/graphene_sqlalchemy/tests/test_converter.py

@@ -1,7 +1,7 @@
 from py.test import raises
 from sqlalchemy import Column, Table, types
 from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy_utils.types.choice import ChoiceType
+from sqlalchemy_utils import ChoiceType, ScalarListType
 from sqlalchemy.dialects import postgresql
 
 import graphene
@@ -108,6 +108,10 @@ def test_should_choice_convert_enum():
     assert graphene_type._meta.enum.__members__['en'].value == 'English'
 
 
+def test_should_scalar_list_convert_list():
+    assert_column_conversion(ScalarListType(), graphene.List)
+
+
 def test_should_manytomany_convert_connectionorlist():
     registry = Registry()
     dynamic_field = convert_sqlalchemy_relationship(Reporter.pets.property, registry)