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Tornado asynchronous ORM by peewee

Project description

# torpeewee

[![Build Status](https://travis-ci.org/snower/torpeewee.svg?branch=master)](https://travis-ci.org/snower/torpeewee)

Tornado asynchronous ORM by peewee

# About

torpeewee - Tornado asynchronous ORM by peewee.

# Installation

pip install torpeewee

# Examples

```python
# -*- 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.

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