Django缓存装饰器+失效函数
项目描述
django-cache-utils2提供缓存装饰器和失效函数。
安装
pip install django-cache-utils2
使用
from cache_utils2 import cached, invalidate
@cached(60)
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
foo(x=2)
class Foo(object):
@cached(60)
def foo(self, x, y):
print "foo is called"
return x+y
obj = Foo()
obj.foo(1,2) # foo is called
obj.foo(1,2)
invalidate(Foo.foo, {'x': 1, 'y': 2})
obj.foo(1,2) # foo is called
Django示例
from django.db import models
from cache_utils2 import cached, invalidate
class CityManager(models.Manager):
# cache a method result. 'self' parameter is ignored
@cached(60*60*24)
def default(self):
return self.active()[0]
# cache a method result. 'self' parameter is ignored, args and
# kwargs are used to construct the cache key
@cached(60*60*24)
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='self.pk')
def has_offers(self):
return self.offer_set.count() > 0
# invalidation of model methods
invalidate(City.has_offers, {'self.pk': 1}
注意
如果装饰函数返回cache_utils2.NO_CACHE，缓存将绕过。
运行测试
获取源代码并运行runtests.py。
关闭
django-cache-utils2-0.1.tar.gz的哈希
| 算法 | 哈希摘要 | |
|---|---|---|
| SHA256 | 8b6efe29f7b7428aec54460e07fde214f6ac12f852e766e53dd6723a68600e8c |
|
| MD5 | 55618448c0fbab7d1a356dcb3a947cf2 |
|
| BLAKE2b-256 | 1fb74c30b4da63883504f7cce16d293426b83a0c010ef3c9592fd63a310574ca |
