ponyorm使用ultramysql(在gevent中使用ponyorm)
1.安装ultramysql
pip install git+https://github.com/esnme/ultramysql.git
2.安装ultramysql的MySQLdb包装库(patch掉ultramysql,来兼容MySQLdb特征)
包装以后,就不需要安装MySQLdb了, 用到MySQLdb的地方相当于使用ultramysql,从而可以在gevent使用ponyorm了
pip install git+https://github.com/hongqn/umysqldb.git
3.安装ponyorm
pip install git+https://github.com/ponyorm/pony.git
测试
# -*- coding: utf-8 -*-
from gevent import monkey; monkey.patch_all()
from pony import orm
import gevent
DB = dict(host="127.0.0.1",
user="root",
passwd="123456",
db="test",
)
db = orm.Database("mysql", **DB)
class Person(db.Entity):
_table_ = "person"
name = orm.Required(unicode)
age = orm.Required(int)
motto = orm.Optional(unicode)
cars = orm.Set("Car")
class Car(db.Entity):
_table_ = "car"
owner = orm.Required(Person)
model = orm.Required(unicode)
# orm.sql_debug(True)
db.generate_mapping(create_tables=False)
def test_insert1():
print "test_insert1 start.."
with orm.db_session:
p1 = Person(name="fk", age=24)
car1 = Car(owner=p1, model="Lexus")
print "test_insert1 end.."
def test_insert2():
print "test_insert2 start.."
with orm.db_session:
p1 = Person(name="gp", age=24)
car1 = Car(owner=p1, model="Lexus")
print "test_insert2 end.."
gevent.spawn(test_insert1)
gevent.spawn(test_insert2)
print "main coroutine.."
gevent.wait()
__all__ = ["Person", "Car", "db"]
result:
main coroutine.. test_insert1 start.. test_insert2 start.. test_insert1 end.. test_insert2 end..
根据log顺序可知, ponyorm已经可以在gevent中阻塞就切换协程了