https://github.com/kszucs/aiopeewee

Asyncio interface for Peewee ORM
https://github.com/kszucs/aiopeewee

async asyncio orm peewee sanic

Last synced: 7 days ago
JSON representation

Asyncio interface for Peewee ORM

• Host: GitHub
• URL: https://github.com/kszucs/aiopeewee
• Owner: kszucs
• License: mit
• Created: 2017-05-04T10:32:26.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2020-04-29T09:12:36.000Z (over 4 years ago)
• Last Synced: 2024-10-14T10:18:06.480Z (20 days ago)
• Topics: async, asyncio, orm, peewee, sanic
• Language: Python
• Size: 158 KB
• Stars: 46
• Watchers: 13
• Forks: 6
• Open Issues: 5
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

Awesome Lists containing this project

• starred-awesome - aiopeewee - Asyncio interface for Peewee ORM (Python)

README

        
AioPeewee

=========

Asyncio interface for peewee_ modeled after torpeewee_

Implemented database adapters:

- [x] aiomysql

- [ ] aiopg

- [ ] sqlite

Currently 125 test cases have been ported from peewee, not all of them but constantly increases.

Simple Atomic operations (transactions) are also supported, but now well tested.

Install

-------

.. code:: bash

    pip install aiopeewee

    # or

    conda install aiopeewee

Usage

-----

.. code:: python

    from aiopeewee import AioModel, AioMySQLDatabase

    from peewee import CharField, TextField, DateTimeField

    from peewee import ForeignKeyField, PrimaryKeyField

    db = AioMySQLDatabase('test', host='127.0.0.1', port=3306,

                         user='root', password='')

    class User(AioModel):

        username = CharField()

        class Meta:

            database = db

    class Blog(AioModel):

        user = ForeignKeyField(User)

        title = CharField(max_length=25)

        content = TextField(default='')

        pub_date = DateTimeField(null=True)

        pk = PrimaryKeyField()

        class Meta:

            database = db

    # create connection pool

    await db.connect(loop)

    # count

    await User.select().count()

    # async iteration on select query

    async for user in User.select():

        print(user)

    # fetch all records as a list from a query in one pass

    users = await User.select()

    # insert

    user = await User.create(username='kszucs')

    # modify

    user.username = 'krisztian'

    await user.save()

    # async iteration on blog set

    [b.title async for b in user.blog_set.order_by(Blog.title)]

    # close connection pool

    await db.close()

    # see more in the tests

ManyToMany

----------

Note that `AioManyToManyField` must be used instead of `ManyToMany`.

.. code:: python

    from aiopeewee import AioManyToManyField

    class User(AioModel):

        username = CharField(unique=True)

        class Meta:

            database = db

    class Note(AioModel):

        text = TextField()

        users = AioManyToManyField(User)

        class Meta:

            database = db

    NoteUserThrough = Note.users.get_through_model()

    async for user in note.users:

        # do something with the users

Currently the only limitation I'm aware of immidiate setting of instance relation must be replaced with a method call:

.. code:: python

    # original, which is not supported

    charlie.notes = [n2, n3]

    # use instead

    await charlie.notes.set([n2, n3])

Serializing

-----------

Converting to dict requires the asyncified version of `model_to_dict`

.. code:: python

    from aiopeewee import model_to_dict

    serialized = await model_to_dict(user)

.. _peewee: http://docs.peewee-orm.com/en/latest/

.. _torpeewee: https://github.com/snower/torpeewee

.. |Build Status| image:: http://drone.lensa.com:8000/api/badges/kszucs/aiopeewee/status.svg

   :target: http://drone.lensa.com:8000/kszucs/pandahouse