Skip to main content

Django caching decorator + invalidate function

Project description

django-cache-utils2 provides cached decorator and invalidate function.


pip install django-cache-utils2


from cache_utils2 import cached, invalidate

def foo(x, y=0):
    print 'foo is called'
    return x+y

foo(1, 2) # foo is called
foo(1, y=2)
foo(5, 6) # foo is called
foo(5, 6)
invalidate(foo, {'x': 1, 'y': 2})
foo(1, 2) # foo is called
foo(5, 6)
foo(x=2) # foo is called

class Foo(object):
    def foo(self, x, y):
        print "foo is called"
        return x+y

obj = Foo(),2) # foo is called,2)

invalidate(, {'x': 1, 'y': 2}),2) # foo is called

Django example

from django.db import models
from cache_utils2 import cached, invalidate

class CityManager(models.Manager):

    # cache a method result. 'self' parameter is ignored
    def default(self):

    # cache a method result. 'self' parameter is ignored, args and
    # kwargs are used to construct the cache key
    def get(self, *args, **kwargs):
        return super(CityManager, self).get(*args, **kwargs)

class City(models.Model):
    # ... field declarations

    objects = CityManager()

    # cache django model instance method result by instance pk
    @cached(30, vary='')
    def has_offers(self):
        return self.offer_set.count() > 0

# invalidation of model methods
invalidate(City.has_offers, {'': 1}


If decorated function returns cache_utils2.NO_CACHE cache will be bypassed.

Running tests

Get the source code and run

Project details

Release history Release notifications | RSS feed

This version


Download files

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

Source Distribution

django-cache-utils2-0.1.tar.gz (5.2 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page