gistfile1.py

class Model(object):
    keyspace = None
    column_family = None
    key = None
    data = {}
    required = []
    modified = False

    def __init__(self, **kwargs):
        if self.key in kwargs and len(kwargs) == 1:
            self.data = Config.driver.get(
                keyspace=self.keyspace, column_family=self.column_family,
                key=kwargs[self.key]
            )
        else:
            self.data = kwargs

    def __setattr__(self, column, value):
        self.modified = True
        self.data[column] = value

    def __getattr__(self, column):
        return self.data[column]

    def __delattr__(self, column):
        self.modified = True
        del self.data[column]

    def save(self):
        if self.modified is False:
            return

        if self.keyspace is None or self.column_family is None or \
            self.key is None:
            raise ValueError('Missing required data')

        for req in required:
            if req not in self.data:
                raise ValueError('Required field missing: %s' % req)

        Config.driver.insert(
            keyspace=self.keyspace, column_family=self.column_family,
            record=self.data, key=self.data[self.key]
        )

        self.modified = False

    def delete(self):
        Config.driver.remove(
            keyspace=self.keyspace, key=self.data[self.key],
            column_family=self.column_family
        )

        self.data = {}
        self.modified = False

class Layer(object):
    keyspace = 'Layers'
    column_family = 'Layer'
    required = ['name', 'owner', 'public']
    key = 'name'

class Token(object):
    keyspace = 'Tokens'
    column_family = 'Token'
    required = ['owner', 'token', 'secret']
    key = 'token'