Skip to main content

a simple orm suport asyncio,fork of aiopeewee

Project description

version: 0.0.4

author: hsz

email: hsz1273327@gmail.com


Asyncio interface for peewee modeled after torpeewee

Feature

  • support mysql and postgresql

  • database factory using database URL

  • use peewee’s fields

  • ManyToManyField support

  • Shortcuts support

  • csv dump /load support

Install

  • python -m pip install aioorm

Example: GRUD

from aioorm 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

Example: Many to many

Note that AioManyToManyField must be used instead of ManyToMany.

from aioorm 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:

# 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

from aioorm import model_to_dict

serialized = await model_to_dict(user)

Dump to csv

tables can be dump to a csv file.

from aioorm.utils import aiodump_csv
query = User.select().order_by(User_csv.id)
await aiodump_csv(query,str(filepath))

Documentation

Documentation on Readthedocs.

TODO

  • async dataset support

  • more test

Limitations

  • untested transactions

  • only support mysql and postgresql

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

aioorm-0.0.4.tar.gz (28.8 kB view hashes)

Uploaded Source

Built Distribution

aioorm-0.0.4-py3-none-any.whl (31.3 kB view hashes)

Uploaded Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page