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Asynchronous interface for peewee ORM powered by asyncio.

Project description

peewee-async

Asynchronous interface for peewee ORM powered by asyncio.

CI workflow PyPi Version Documentation Status

Overview

  • Requires Python 3.7+
  • Has support for PostgreSQL via aiopg
  • Has support for MySQL via aiomysql
  • Single point for high-level async API
  • Drop-in replacement for sync code, sync will remain sync
  • Basic operations are supported
  • Transactions support is present, yet not heavily tested

The complete documentation:
http://peewee-async.readthedocs.io

Install

Install with pip for PostgreSQL:

pip install --pre peewee-async; pip install aiopg

or for MySQL:

pip install --pre peewee-async; pip install aiomysql

Quickstart

Create 'test' PostgreSQL database for running this snippet:

createdb -E utf-8 test
import asyncio
import peewee
import peewee_async

# Nothing special, just define model and database:

database = peewee_async.PostgresqlDatabase(
    database='db_name',
    user='user',
    host='127.0.0.1',
    port='5432',
    password='password'
)

class TestModel(peewee.Model):
    text = peewee.CharField()

    class Meta:
        database = database

# Look, sync code is working!

TestModel.create_table(True)
TestModel.create(text="Yo, I can do it sync!")
database.close()

# Create async models manager:

objects = peewee_async.Manager(database)

# No need for sync anymore!

database.set_allow_sync(False)

async def handler():
    await objects.create(TestModel, text="Not bad. Watch this, I'm async!")
    all_objects = await objects.execute(TestModel.select())
    for obj in all_objects:
        print(obj.text)

loop = asyncio.get_event_loop()
loop.run_until_complete(handler())
loop.close()

# Clean up, can do it sync again:
with objects.allow_sync():
    TestModel.drop_table(True)

# Expected output:
# Yo, I can do it sync!
# Not bad. Watch this, I'm async!

Documentation

http://peewee-async.readthedocs.io

Developing

Install dependencies: pip install -e .[develop]

Run databases: docker-compose up -d

Run tests: pytest tests -v -s

Discuss

You are welcome to add discussion topics or bug reports to tracker on GitHub: https://github.com/05bit/peewee-async/issues

License

Copyright (c) 2014, Alexey Kinev rudy@05bit.com

Licensed under The MIT License (MIT), see LICENSE file for more details.

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