python-flask-SQLAlchemy-Utils组件

SQLAlchemy-Utils，提供choice功能

定义：
# pip3 install sqlalchemy-utils
from sqlalchemy_utils import ChoiceType

Base = declarative_base()

class Xuan(Base):
__tablename__ = 'xuan'
types_choices = (
(1,'欧美'),
(2,'日韩'),
(3,'老男孩'),
)
id = Column(Integer,primary_key=True,autoincrement=True)
name = Column(String(64))
types = Column(ChoiceType(types_choices,Integer()))

__table_args__ = {
'mysql_engine':'Innodb',
'mysql_charset':'utf8',
}

查询：
result_list = session.query(Xuan).all()
for item in result_list:
print(item.types.code,item.types.value)