context_processors.py 文件源码

def login_redirect(request):
    """Load current redirect to context."""
    value = request.method == 'POST' and \
                request.POST.get(REDIRECT_FIELD_NAME) or \
                request.GET.get(REDIRECT_FIELD_NAME)
    if value:
        value = quote(value)
        querystring = REDIRECT_FIELD_NAME + '=' + value
    else:
        querystring = ''

    return {
        'REDIRECT_FIELD_NAME': REDIRECT_FIELD_NAME,
        'REDIRECT_FIELD_VALUE': value,
        'REDIRECT_QUERYSTRING': querystring
    }