from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.ext.declarative import declared_attr
import sqlalchemy

from abc import ABCMeta, abstractmethod
Base = declarative_base()

class IInterface:
    __metaclass__ = ABCMeta

    @abstractmethod
    def getIndex(self): raise NotImplementedError

class NgoBase(IInterface):

    def __init__(self):
        print(self)

    @declared_attr
    def __tablename__(cls):
        return cls.__name__.lower()



#class TestClass(Base, NgoBase):
#    EID = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, nullable=False)

#   def getIndex(self):
#        return self.EID