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8d7ce3726d
* Reenable flake8 on compat, cleanup style/imports
* Cleanup compat urls imports
* Refactor compat url pattern/resolver imports
* Add comment re dropping pytz compat
... when dropping Django 1.10
* Strip whitespace
Grrr. GitHub web editor 😡
64 lines
2.4 KiB
Python
64 lines
2.4 KiB
Python
from __future__ import unicode_literals
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from django.conf.urls import include, url
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from rest_framework.compat import URLResolver, get_regex_pattern
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from rest_framework.settings import api_settings
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def apply_suffix_patterns(urlpatterns, suffix_pattern, suffix_required):
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ret = []
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for urlpattern in urlpatterns:
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if isinstance(urlpattern, URLResolver):
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# Set of included URL patterns
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regex = get_regex_pattern(urlpattern)
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namespace = urlpattern.namespace
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app_name = urlpattern.app_name
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kwargs = urlpattern.default_kwargs
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# Add in the included patterns, after applying the suffixes
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patterns = apply_suffix_patterns(urlpattern.url_patterns,
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suffix_pattern,
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suffix_required)
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ret.append(url(regex, include((patterns, app_name), namespace), kwargs))
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else:
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# Regular URL pattern
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regex = get_regex_pattern(urlpattern).rstrip('$').rstrip('/') + suffix_pattern
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view = urlpattern.callback
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kwargs = urlpattern.default_args
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name = urlpattern.name
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# Add in both the existing and the new urlpattern
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if not suffix_required:
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ret.append(urlpattern)
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ret.append(url(regex, view, kwargs, name))
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return ret
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def format_suffix_patterns(urlpatterns, suffix_required=False, allowed=None):
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"""
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Supplement existing urlpatterns with corresponding patterns that also
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include a '.format' suffix. Retains urlpattern ordering.
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urlpatterns:
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A list of URL patterns.
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suffix_required:
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If `True`, only suffixed URLs will be generated, and non-suffixed
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URLs will not be used. Defaults to `False`.
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allowed:
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An optional tuple/list of allowed suffixes. eg ['json', 'api']
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Defaults to `None`, which allows any suffix.
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"""
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suffix_kwarg = api_settings.FORMAT_SUFFIX_KWARG
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if allowed:
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if len(allowed) == 1:
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allowed_pattern = allowed[0]
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else:
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allowed_pattern = '(%s)' % '|'.join(allowed)
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suffix_pattern = r'\.(?P<%s>%s)/?$' % (suffix_kwarg, allowed_pattern)
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else:
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suffix_pattern = r'\.(?P<%s>[a-z0-9]+)/?$' % suffix_kwarg
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return apply_suffix_patterns(urlpatterns, suffix_pattern, suffix_required)
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