Tornado asynchronous ORM by peewee
Project description
torpeewee
Tornado asynchronous ORM by peewee
About
torpeewee - Tornado asynchronous ORM by peewee.
Installation
pip install torpeewee
Examples
# -*- coding: utf-8 -*-
# 16/7/7
# create by: snower
import datetime
from tornado import gen
from tornado.ioloop import IOLoop
from torpeewee import *
db = MySQLDatabase("test", host="127.0.0.1", port=3306, user="root", passwd="123456")
class BaseModel(Model):
class Meta:
database = db
class Test(BaseModel):
id = IntegerField(primary_key= True)
data = CharField(max_length=64, null=False)
count = IntegerField(default=0)
created_at = DateTimeField()
updated_at = DateTimeField()
ioloop = IOLoop.instance()
@db.transaction()
@gen.coroutine
def run_transaction(transaction):
for i in (yield Test.use(transaction).select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
print ""
t = yield Test.use(transaction).create(data="test", created_at=datetime.datetime.now(),
updated_at=datetime.datetime.now())
print t.id, t.data
for i in (yield Test.select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
print ""
for i in (yield Test.use(transaction).select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
@gen.coroutine
def run():
t = yield Test.select().where(Test.id == 5).first()
print t
c = yield Test.select().where(Test.id > 5).count()
print c
c = yield Test.select().where(Test.id > 5).group_by(Test.data).count()
print c
for i in (yield Test.select().where(Test.id > 5).where(Test.id<=10)):
print i.id, i.data
for i in (yield Test.select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
t = yield Test.create(data = "test", created_at=datetime.datetime.now(), updated_at=datetime.datetime.now())
print t.id, t.data
for i in (yield Test.select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
print ""
print ""
t = yield Test.select().order_by(Test.id.desc()).limit(1)[0]
print t.id, t.data, t.count
t.count += 1
yield t.save()
t = yield Test.select().order_by(Test.id.desc()).limit(1)[0]
print t.id, t.data, t.count
print ""
print ""
with (yield db.transaction()) as transaction:
for i in (yield Test.use(transaction).select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
print ""
t = yield Test.use(transaction).create(data="test", created_at=datetime.datetime.now(), updated_at=datetime.datetime.now())
print t.id, t.data
for i in (yield Test.select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
print ""
for i in (yield Test.use(transaction).select().order_by(Test.id.desc()).limit(2)):
print i.id, i.data
print ""
print ""
yield run_transaction()
ioloop.run_sync(run)
License
torpeewee uses the MIT license, see LICENSE file for the details.
Project details
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Source Distribution
torpeewee-0.0.6.tar.gz
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