gistfile1.txt

RulesSrcObjects = Table('rules_src_objects',
    Column('id', Integer, primary_key=True),
    Column('rule_id', Integer, ForeignKey('Rule.id')),
    Column('object_id', Integer, ForeignKey('Object.id')),

RulesDstbjects = Table('rules_dst_objects',
    Column('id', Integer, primary_key=True),
    Column('rule_id', Integer, ForeignKey('Rule.id')),
    Column('object_id', Integer, ForeignKey('Object.id')),

Class Object(Base):
     __tablename__ =  'objects'
     id = Column(Integer)
     name = Column(String, primary_key=True)
     ip = Column(string)
     port = Column(int
     proto = Column(int)
     src_rules = relationship('Rule', secondary=RuleSrcObjects)
     dst_rules = relationship('Rule', secondary=RuleDstObjects)

 
Class Rule(Base):
    __tablename__ = 'rules'
    rulename = Column(String, primary_key=True)
    src_objects = relationship('Objects', secondary=RulesSrcObjects)
    dst_objects = relationship('Objects', secondary=RulesDstObjects)