Updated SQLAlchemy example

graphene-sqlalchemy/examples/flask_sqlalchemy/app.py

@@ -1,7 +1,7 @@
 from flask import Flask
 
 from database import db_session, init_db
-from flask_graphql import GraphQL
+from flask_graphql import GraphQLView
 from schema import schema
 
 app = Flask(__name__)
@@ -27,7 +27,8 @@ default_query = '''
   }
 }'''.strip()
 
-GraphQL(app, schema=schema, default_query=default_query)
+
+app.add_url_rule('/graphql', view_func=GraphQLView.as_view('graphql', schema=schema, graphiql=True))
 
 
 @app.teardown_appcontext

graphene-sqlalchemy/examples/flask_sqlalchemy/schema.py

@@ -1,40 +1,36 @@
 import graphene
 from graphene import relay
-from graphene.contrib.sqlalchemy import (SQLAlchemyConnectionField,
+from graphene_sqlalchemy import (SQLAlchemyConnectionField,
+                                 SQLAlchemyObjectType,
                                  SQLAlchemyNode)
 from models import Department as DepartmentModel
 from models import Employee as EmployeeModel
 from models import Role as RoleModel
 
-schema = graphene.Schema()
 
-
+class Department(SQLAlchemyNode, SQLAlchemyObjectType):
-@schema.register
-class Department(SQLAlchemyNode):
 
     class Meta:
         model = DepartmentModel
 
 
-@schema.register
+class Employee(SQLAlchemyNode, SQLAlchemyObjectType):
-class Employee(SQLAlchemyNode):
 
     class Meta:
         model = EmployeeModel
 
 
-@schema.register
+class Role(SQLAlchemyNode, SQLAlchemyObjectType):
-class Role(SQLAlchemyNode):
 
     class Meta:
         model = RoleModel
-        identifier = 'role_id'
 
 
 class Query(graphene.ObjectType):
-    node = relay.NodeField(Employee)
+    node = SQLAlchemyNode.Field()
     all_employees = SQLAlchemyConnectionField(Employee)
     all_roles = SQLAlchemyConnectionField(Role)
-    role = relay.NodeField(Role)
+    role = graphene.Field(Role)
 
-schema.query = Query
+
+schema = graphene.Schema(query=Query, types=[Department, Employee, Role])