1 # -*- coding: utf-8 -*-

     2 '''

     3 Created on Mar 13, 2012

     4 

     5 @author: ymh

     6 '''

     7 from django.core.cache import cache

     8 from django.utils.encoding import smart_str

     9 import md5

    10 import re

    11 

    12 

    13 def fix_cache_key(key):

    14     cache_key = re.sub(r'\s+', '-', key)

    15     cache_key = smart_str(cache_key)

    16     if len(cache_key) > (250-(2+len(cache.key_prefix)+len(str(cache.version)))-33):

    17         cache_key = cache_key[:(250-(2+len(cache.key_prefix)+len(str(cache.version)))-33)] + '-' + md5.new(cache_key).hexdigest()

    18     return cache_key