class RegexURLResolver(object):
def __init__(self, regex, urlconf_name, default_kwargs=None):
# regex is a string representing a regular expression.
# urlconf_name is a string representing the module containing urlconfs.
self.regex = re.compile(regex, re.UNICODE)
self.urlconf_name = urlconf_name
self.callback = None
self.default_kwargs = default_kwargs or {}
self._reverse_dict = MultiValueDict()
def __repr__(self):
return '<%s %s %s>' % (self.__class__.__name__, self.urlconf_name, self.regex.pattern)
def _get_reverse_dict(self):
if not self._reverse_dict and hasattr(self.urlconf_module, 'urlpatterns'):
try:
for pattern in reversed(self.urlconf_module.urlpatterns):
p_pattern = pattern.regex.pattern
if p_pattern.startswith('^'):
p_pattern = p_pattern[1:]
if isinstance(pattern, RegexURLResolver):
parent = normalize(pattern.regex.pattern)
for name in pattern.reverse_dict:
for matches, pat in pattern.reverse_dict.getlist(name):
new_matches = []
for piece, p_args in parent:
new_matches.extend([(piece + suffix, p_args + args) for (suffix, args) in matches])
self._reverse_dict.appendlist(name, (new_matches, p_pattern + pat))
else:
bits = normalize(p_pattern)
self._reverse_dict.appendlist(pattern.callback, (bits, p_pattern))
self._reverse_dict.appendlist(pattern.name, (bits, p_pattern))
except:
self._reverse_dict.clear()
raise
return self._reverse_dict
reverse_dict = property(_get_reverse_dict)
def resolve(self, path):
tried = []
match = self.regex.search(path)
if match:
new_path = path[match.end():]
for pattern in self.urlconf_module.urlpatterns:
try:
sub_match = pattern.resolve(new_path)
except Resolver404, e:
tried.extend([(pattern.regex.pattern + ' ' + t) for t in e.args[0]['tried']])
else:
if sub_match:
sub_match_dict = dict([(smart_str(k), v) for k, v in match.groupdict().items()])
sub_match_dict.update(self.default_kwargs)
for k, v in sub_match[2].iteritems():
sub_match_dict[smart_str(k)] = v
return sub_match[0], sub_match[1], sub_match_dict
tried.append(pattern.regex.pattern)
raise Resolver404, {'tried': tried, 'path': new_path}
def clear(self):
self._assert_mutable()
MultiValueDict.clear(self)
def clear(self):
self._assert_mutable()
MultiValueDict.clear(self)
