class CacheNode(Node):
def __init__(self, nodelist, expire_time_var, fragment_name, vary_on):
self.nodelist = nodelist
self.expire_time_var = Variable(expire_time_var)
self.fragment_name = fragment_name
self.vary_on = vary_on
def render(self, context):
try:
expire_time = self.expire_time_var.resolve(context)
except VariableDoesNotExist:
raise TemplateSyntaxError(
'"cache" tag got an unknown variable: %r' %
self.expire_time_var.var)
try:
expire_time = int(expire_time)
except (ValueError, TypeError):
raise TemplateSyntaxError(
'"cache" tag got a non-integer timeout value: %r' %
expire_time)
# Build a unicode key for this fragment and all vary-on's.
args = md5_constructor(':'.join([
urlquote(resolve_variable(var, context)) for var in self.vary_on
]))
cache_key = 'template.cache.%s.%s' % (self.fragment_name,
args.hexdigest())
value = cache.get(cache_key)
if value is None:
value = self.nodelist.render(context)
cache.set(cache_key, value, expire_time)
return value
class IncludeNode(Node):
def __init__(self, template_name):
self.template_name = Variable(template_name)
def render(self, context):
try:
template_name = self.template_name.resolve(context)
t = get_template(template_name)
return t.render(context)
except:
if settings.TEMPLATE_DEBUG:
raise
return ''
class IncludeNode(Node):
def __init__(self, template_name):
self.template_name = Variable(template_name)
def render(self, context):
try:
template_name = self.template_name.resolve(context)
t = get_template(template_name)
return t.render(context)
except:
if settings.TEMPLATE_DEBUG:
raise
return ''
class CacheNode(Node):
def __init__(self, nodelist, expire_time_var, fragment_name, vary_on):
self.nodelist = nodelist
self.expire_time_var = Variable(expire_time_var)
self.fragment_name = fragment_name
self.vary_on = vary_on
def render(self, context):
try:
expire_time = self.expire_time_var.resolve(context)
except VariableDoesNotExist:
raise TemplateSyntaxError('"cache" tag got an unknown variable: %r' % self.expire_time_var.var)
try:
expire_time = int(expire_time)
except (ValueError, TypeError):
raise TemplateSyntaxError('"cache" tag got a non-integer timeout value: %r' % expire_time)
# Build a unicode key for this fragment and all vary-on's.
args = md5_constructor(':'.join([urlquote(resolve_variable(var, context)) for var in self.vary_on]))
cache_key = 'template.cache.%s.%s' % (self.fragment_name, args.hexdigest())
value = cache.get(cache_key)
if value is None:
value = self.nodelist.render(context)
cache.set(cache_key, value, expire_time)
return value