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# -*- coding: utf-8 -*- |
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''' |
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Created on Mar 13, 2012 |
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@author: ymh and tc |
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''' |
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from django.core.cache import cache |
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from django.utils.encoding import smart_str |
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import hashlib |
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import re |
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import logging |
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logger = logging.getLogger(__name__) |
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def fix_cache_key(key): |
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cache_key = re.sub(r'\s+', '-', key) |
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cache_key = smart_str(cache_key) |
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if len(cache_key) > (250-(2+len(cache.key_prefix)+len(str(cache.version)))-33): |
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cache_key = cache_key[:(250-(2+len(cache.key_prefix)+len(str(cache.version)))-33)] + '-' + hashlib.md5(cache_key).hexdigest() |
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return cache_key |
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# |
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# from : http://cs.stackexchange.com/a/10321 |
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# |
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def toDigits(n, b): |
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"""Convert a positive number n to its digit representation in base b.""" |
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digits = [] |
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while n > 0: |
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digits.insert(0, n % b) |
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n = n // b |
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return digits |