使用sqlalchemy建立携带加密字段的ORM表

####################first region#######################
from werkzeug.security import generate_password_hash,check_password_hash
pw1 = generate_password_hash('tony')
pw2 = generate_password_hash('tony')

print pw1
print pw2

print check_password_hash(pw1,'tony')
print check_password_hash(pw2,'tony')


####################second region####################


from sqlalchemy.ext.hybrid import hybrid_property
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import create_engine,Column,Integer,String,Sequence
from sqlalchemy import and_,or_
from sqlalchemy.orm import sessionmaker

DB_URI = 'XXX-XXX-XXX'

eng = create_engine(DB_URI)
Base = declarative_base()

class User(Base):
    __tablename__ = 'hash_users'
    id = Column(Integer,primary_key=True)
    name = Column(String(128),nullable=False)
    _password = Column(String(256),nullable=False)

    def __init__(self,name,password):
        self.name = name
        self._password = password

　　#hybrid_property装饰器把password变成了一个混合属性，可以通过user.password属性来访问哈希的密码，也会在给user.password
　　#赋值的时候触发password.setter

    @hybrid_property
    def password(self):
        return self._password

    @password.setter
    def _set_password(self,plaintext):
        self._password = generate_password_hash(plaintext)

    def verify_password(self,password):
        return check_password_hash(self._password,password)