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32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
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from django.core.urlresolvers import resolve
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from djangorestframework.description import get_name
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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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def breadcrumbs_recursive(url, breadcrumbs_list):
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"""Add tuples of (name, url) to the breadcrumbs list, progressively chomping off parts of the url."""
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# This is just like compsci 101 all over again...
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try:
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(view, unused_args, unused_kwargs) = resolve(url)
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except:
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pass
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else:
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if callable(view):
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breadcrumbs_list.insert(0, (get_name(view), 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)
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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)
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return breadcrumbs_recursive(url, [])
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