From 4b691c402707775c3048a90531024f3bc5be6f91 Mon Sep 17 00:00:00 2001 From: Tom Christie Date: Thu, 20 Sep 2012 13:06:27 +0100 Subject: Change package name: djangorestframework -> rest_framework --- rest_framework/utils/breadcrumbs.py | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 rest_framework/utils/breadcrumbs.py (limited to 'rest_framework/utils/breadcrumbs.py') diff --git a/rest_framework/utils/breadcrumbs.py b/rest_framework/utils/breadcrumbs.py new file mode 100644 index 00000000..672d32a3 --- /dev/null +++ b/rest_framework/utils/breadcrumbs.py @@ -0,0 +1,34 @@ +from django.core.urlresolvers import resolve, get_script_prefix + + +def get_breadcrumbs(url): + """Given a url returns a list of breadcrumbs, which are each a tuple of (name, url).""" + + from rest_framework.views import APIView + + def breadcrumbs_recursive(url, breadcrumbs_list, prefix): + """Add tuples of (name, url) to the breadcrumbs list, progressively chomping off parts of the url.""" + + try: + (view, unused_args, unused_kwargs) = resolve(url) + except Exception: + pass + else: + # Check if this is a REST framework view, and if so add it to the breadcrumbs + if isinstance(getattr(view, 'cls_instance', None), APIView): + breadcrumbs_list.insert(0, (view.cls_instance.get_name(), prefix + url)) + + if url == '': + # All done + return breadcrumbs_list + + elif url.endswith('/'): + # Drop trailing slash off the end and continue to try to resolve more breadcrumbs + return breadcrumbs_recursive(url.rstrip('/'), breadcrumbs_list, prefix) + + # Drop trailing non-slash off the end and continue to try to resolve more breadcrumbs + return breadcrumbs_recursive(url[:url.rfind('/') + 1], breadcrumbs_list, prefix) + + prefix = get_script_prefix().rstrip('/') + url = url[len(prefix):] + return breadcrumbs_recursive(url, [], prefix) -- cgit v1.2.3