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- # -*- coding: utf-8 -*-
- """
- flask.globals
- ~~~~~~~~~~~~~
- Defines all the global objects that are proxies to the current
- active context.
- :copyright: (c) 2011 by Armin Ronacher.
- :license: BSD, see LICENSE for more details.
- """
- from functools import partial
- from werkzeug.local import LocalStack, LocalProxy
- def _lookup_req_object(name):
- top = _request_ctx_stack.top
- if top is None:
- raise RuntimeError('working outside of request context')
- return getattr(top, name)
- def _lookup_app_object(name):
- top = _app_ctx_stack.top
- if top is None:
- raise RuntimeError('working outside of application context')
- return getattr(top, name)
- def _find_app():
- top = _app_ctx_stack.top
- if top is None:
- raise RuntimeError('working outside of application context')
- return top.app
- # context locals
- _request_ctx_stack = LocalStack()
- _app_ctx_stack = LocalStack()
- current_app = LocalProxy(_find_app)
- request = LocalProxy(partial(_lookup_req_object, 'request'))
- session = LocalProxy(partial(_lookup_req_object, 'session'))
- g = LocalProxy(partial(_lookup_app_object, 'g'))
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