Redis-DB

redis-db

ORM for managing cache of django models using redis. Models data can be cached just once and as per requirements it can be fetched using filters.

No-Sql in retrieval of model objects.

Dependencies:

django >=1.3

redis-py

redis

User Manual :

from redis_db.manager import CacheManager

class Person(models.Model):
  """
  Person model, contains basic details.
  """
  name = models.CharField(max_length = 255)
  email = models.EmailField(max_length = 100)
  gender = models.ChoiceField(choices = (('M', 'Male'), ('F', 'Female')))
  
  #custom managers
  objects = models.Manager()
  cache_objects = CacheManager(key = 'person-cache')
  

Creating Cache Data (one time process)

qs = Person.objects.all()
Person.cache_objects.store(qs)    # qs can be anything, filtered queryset or model object itself

Retrieving Objects from cache (No-SQL)

1- All objects

  objs = Person.cache_objects.all()  # returns list of Person Objects. Note - Gives back list not queryset,
                                     # because querysets itself is lazy query
  

2 - Filters usage

  objs = Person.cache_objects.filter(gender = 'M')   # all male Person's Objects
  

3 - Get a specific object based on id

  obj = Person.cache_objects.get(id= 10) 

Note :

For non reference objects there is no query at all but in case of ForiegnKey retreival it makes a query to get that object.