0👍
You can use the contextfunction wrapper.
from jinja2 import contextfunction
class get_metadata(Extension):
tags = {'get_metadata'}
def parse(self, parser):
while not parser.stream.current.type == 'block_end':
parser.stream.next()
return nodes.Output([self.call_method('_get_metadata')])
@contextfunction
def _get_metadata(self, context):
req = context.get("request")
if not req:
return None
return req["META"]["PATH_INFO"]
register = CoffinLibrary()
register.tag(get_metadata)
Source:stackexchange.com