Cornice's documentation mentions how to validate your schema using a colander's MappingSchema subclass. How should we use a colanderalchemy schema for the same purpose? Because if we create a schema using colanderalchemy as stated in the documentation, the schema object has already instantiated the colander's class, and I think that this results in an error.
To be more precise, here is my sample code:
from sqlalchemy.ext.declarative import declarative_base
from cornice.resource import resource, view
from colanderalchemy import SQLAlchemySchemaNode
from sqlalchemy import (
Column,
Integer,
Unicode,
)
Base = declarative_base()
'''
SQLAlchemy part
'''
class DBTable(Base):
__tablename__ = 'mytable'
id = Column(Integer, primary_key=True,
info={'colanderalchemy': {'exclude': True}})
name = Column(Unicode(70), nullable=False)
description = Column(Unicode(256))
'''
ColanderAlchemy part
'''
ClndrTable = SQLAlchemySchemaNode(DBTable)
'''
Cornice part
'''
PRF='api'
@resource(collection_path='%s/' % PRF, path='%s/{fid}' % PRF)
class TableApi(object):
def __init__(self, request):
self.request = request
@view(schema=ClndrTable, renderer='json')
def put(self):
# do my stuff here
pass
Where ClndrTable is my auto-generated schema. Now, when trying to deploy this code, I get the following error:
NotImplementedError: Schema node construction without a typ argument or a schema_type() callable present on the node class
As I've mentioned earlier, I am suspecting that the problem is that ClndrTable (given as an argument to the view decorator) is an instantiation of the automatically generated schema by colanderalchemy.
Anyone knowing how to resolve this?
Thanks all in advance!
