Fixed default query value in SQLAlchemyConnectionField. Fixed #133

Author: syrusakbary

graphene/contrib/sqlalchemy/fields.py

@@ -7,21 +7,24 @@
 from .utils import get_type_for_model, maybe_query, get_query
 
 
+class DefaultQuery(object):
+    pass
+
+
 class SQLAlchemyConnectionField(ConnectionField):
 
     def __init__(self, *args, **kwargs):
+        kwargs['default'] = kwargs.pop('default', lambda: DefaultQuery)
         return super(SQLAlchemyConnectionField, self).__init__(*args, **kwargs)
 
     @property
     def model(self):
         return self.type._meta.model
 
-    def get_query(self, resolved_query, args, info):
-        return resolved_query if resolved_query is not None else get_query(self.model, info)
-
     def from_list(self, connection_type, resolved, args, info):
-        query = self.get_query(resolved, args, info)
-        query = maybe_query(query)
+        if resolved is DefaultQuery:
+            resolved = get_query(self.model, info)
+        query = maybe_query(resolved)
         return super(SQLAlchemyConnectionField, self).from_list(connection_type, query, args, info)
 
 

graphene/contrib/sqlalchemy/tests/test_query.py

@@ -2,7 +2,7 @@
 
 import graphene
 from graphene import relay
-from graphene.contrib.sqlalchemy import SQLAlchemyObjectType, SQLAlchemyNode
+from graphene.contrib.sqlalchemy import SQLAlchemyObjectType, SQLAlchemyNode, SQLAlchemyConnectionField
 from sqlalchemy import create_engine
 from sqlalchemy.orm import scoped_session, sessionmaker
 
@@ -115,6 +115,7 @@ class Query(graphene.ObjectType):
         node = relay.NodeField()
         reporter = graphene.Field(ReporterNode)
         article = graphene.Field(ArticleNode)
+        all_articles = SQLAlchemyConnectionField(ArticleNode)
 
         def resolve_reporter(self, *args, **kwargs):
             return Reporter(id=1, first_name='ABA', last_name='X')
@@ -137,6 +138,13 @@ def resolve_article(self, *args, **kwargs):
             lastName,
             email
           }
+          allArticles {
+            edges {
+              node {
+                headline
+              }
+            }
+          }
           myArticle: node(id:"QXJ0aWNsZU5vZGU6MQ==") {
             id
             ... on ReporterNode {
@@ -162,6 +170,13 @@ def resolve_article(self, *args, **kwargs):
                 }]
             },
         },
+        'allArticles': {
+            'edges': [{
+                'node': {
+                    'headline': 'Hi!'
+                }
+            }]
+        },
         'myArticle': {
             'id': 'QXJ0aWNsZU5vZGU6MQ==',
             'headline': 'Hi!'