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35 lines
1.4 KiB
Python
35 lines
1.4 KiB
Python
from django.core.urlresolvers import resolve, get_script_prefix
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def get_breadcrumbs(url):
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"""Given a url returns a list of breadcrumbs, which are each a tuple of (name, url)."""
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from djangorestframework.views import View
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def breadcrumbs_recursive(url, breadcrumbs_list, prefix):
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"""Add tuples of (name, url) to the breadcrumbs list, progressively chomping off parts of the url."""
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try:
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(view, unused_args, unused_kwargs) = resolve(url)
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except Exception:
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pass
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else:
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# Check if this is a REST framework view, and if so add it to the breadcrumbs
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if isinstance(getattr(view, 'cls_instance', None), View):
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breadcrumbs_list.insert(0, (view.cls_instance.get_name(), prefix + url))
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if url == '':
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# All done
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return breadcrumbs_list
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elif url.endswith('/'):
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# Drop trailing slash off the end and continue to try to resolve more breadcrumbs
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return breadcrumbs_recursive(url.rstrip('/'), breadcrumbs_list, prefix)
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# Drop trailing non-slash off the end and continue to try to resolve more breadcrumbs
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return breadcrumbs_recursive(url[:url.rfind('/') + 1], breadcrumbs_list, prefix)
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prefix = get_script_prefix().rstrip('/')
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url = url[len(prefix):]
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return breadcrumbs_recursive(url, [], prefix)
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