redis-astra

ORM for Redis

redis-astra

Redis-astra is Python light ORM for Redis

Example:

import redis
from astra import models

db = redis.StrictRedis(host='127.0.0.1', decode_responses=True)

class SiteObject(models.Model):
    database = db
    name = models.CharHash()

class UserObject(models.Model):
    database = db
    name = models.CharHash()
    login = models.CharHash()
    site = models.ForeignKey(to='SiteObject')
    sites_list = models.List(to='SiteObject')
    viewers = models.IntegerField()

So you can use it like this:

>>> user = UserObject(pk=1, name="Mike", viewers=5)
>>> user.login = 'mike@null.com'
>>> user.login
'mike@null.com'
>>> user.viewers_incr(2)
7
>>> site = SiteObject(pk=1, name="redis.io")
>>> user.site = site
>>> user.sites_list.lpush(site, site, site)
3
>>> len(user.sites_list)
3
>>> user.sites_list[2].name
'redis.io'

Redis-astra supported signals, based on PyDispatcher:

from astra import signals

def save_handler(**kwargs):
    print(kwargs)

signals.post_init.connect(save_handler)
signals.post_assign.connect(save_handler)

>>> user = UserObject(pk=1, name="Mike", viewers=5)
{'signal': 'post_init', 'instance': <Model UserObject(pk=1)>, 'sender': <class '__main__.UserObject'>}

>>> user.login = 'mike@null.com'
{'signal': 'post_assign', 'value': 'mike@null.com', 'instance': <Model UserObject(pk=1)>, 'attr': 'login', 'sender': <class '__main__.UserObject'>}