jinja2 redis cache

sanaholu_jinja2_rediscache.py

from jinja2 import nodes
from jinja2.ext import Extension


class FragmentCacheExtension(Extension):
    '''http://jinja.pocoo.org/docs/dev/extensions/#example-extension'''
    
    # 其余部分略...
    
    def _cache_support(self, name, timeout, caller):
        if timeout <= 0: # 0 or -1 DO NOT do cache. (useful in debug mode)
            return caller()

        key = self.environment.fragment_cache_prefix + name

        rv = self.environment.fragment_cache.get(key)
        if rv is not None:
            return rv

        rv = caller()
        self.environment.fragment_cache.add(key, rv, timeout)
        return rv