def add_preserved_filters(context, url, popup=False, to_field=None):
opts = context.get('opts')
preserved_filters = context.get('preserved_filters')
parsed_url = list(urlparse(url))
parsed_qs = dict(parse_qsl(parsed_url[4]))
merged_qs = dict()
if opts and preserved_filters:
preserved_filters = dict(parse_qsl(preserved_filters))
match_url = '/%s' % url.partition(get_script_prefix())[2]
try:
match = resolve(match_url)
except Resolver404:
pass
else:
current_url = '%s:%s' % (match.app_name, match.url_name)
changelist_url = 'admin:%s_%s_changelist' % (opts.app_label, opts.model_name)
if changelist_url == current_url and '_changelist_filters' in preserved_filters:
preserved_filters = dict(parse_qsl(preserved_filters['_changelist_filters']))
merged_qs.update(preserved_filters)
if popup:
from django.contrib.admin.options import IS_POPUP_VAR
merged_qs[IS_POPUP_VAR] = 1
if to_field:
from django.contrib.admin.options import TO_FIELD_VAR
merged_qs[TO_FIELD_VAR] = to_field
merged_qs.update(parsed_qs)
parsed_url[4] = urlencode(merged_qs)
return urlunparse(parsed_url)
python类Resolver404()的实例源码
def resolve(self, update):
try:
resolver_match = self.resolver.resolve(update.message.text)
return resolver_match
except Resolver404:
raise HandlerNotFound("No handler configured for %s" % update.message.text)
def is_allowed_homepage(url_string):
"""return True is the current page can be set as homepage"""
url = urlparse.urlparse(url_string)
try:
safe_url = url.path
resolved = resolve(safe_url)
except Resolver404:
return False
if resolved.url_name in get_allowed_homepages():
return True
return False
def to_internal_value(self, data):
""" TODO - I've had to copy this method from HyperlinkedRelatedField purely
so that it can deal with polymorphic models. This probably is not ideal.
"""
try:
http_prefix = data.startswith(('http:', 'https:'))
except AttributeError:
self.fail('incorrect_type', data_type=type(data).__name__)
if http_prefix:
# If needed convert absolute URLs to relative path
data = urlparse.urlparse(data).path
prefix = get_script_prefix()
if data.startswith(prefix):
data = '/' + data[len(prefix):]
try:
match = resolve(data)
except Resolver404:
self.fail('no_match')
if self._serializer_is_polymorphic:
# TODO - This is not really what we want. Need to make sure
# that match.view_name points to a view which uses a subtype
# serializer for this polymorphic serializer
self.view_name = match.view_name
if match.view_name != self.view_name:
self.fail('incorrect_match')
try:
return self.get_object(match.view_name, match.args, match.kwargs)
except (ObjectDoesNotExist, TypeError, ValueError):
self.fail('does_not_exist')
def add_preserved_filters(context, url, popup=False, to_field=None):
opts = context.get('opts')
preserved_filters = context.get('preserved_filters')
parsed_url = list(urlparse(url))
parsed_qs = dict(parse_qsl(parsed_url[4]))
merged_qs = dict()
if opts and preserved_filters:
preserved_filters = dict(parse_qsl(preserved_filters))
match_url = '/%s' % url.partition(get_script_prefix())[2]
try:
match = resolve(match_url)
except Resolver404:
pass
else:
current_url = '%s:%s' % (match.app_name, match.url_name)
changelist_url = 'admin:%s_%s_changelist' % (opts.app_label, opts.model_name)
if changelist_url == current_url and '_changelist_filters' in preserved_filters:
preserved_filters = dict(parse_qsl(preserved_filters['_changelist_filters']))
merged_qs.update(preserved_filters)
if popup:
from django.contrib.admin.options import IS_POPUP_VAR
merged_qs[IS_POPUP_VAR] = 1
if to_field:
from django.contrib.admin.options import TO_FIELD_VAR
merged_qs[TO_FIELD_VAR] = to_field
merged_qs.update(parsed_qs)
parsed_url[4] = urlencode(merged_qs)
return urlunparse(parsed_url)
def view_passes_test(view_name, path, **kwargs):
# Special case for tag included everywhere
if view_name == '__all__':
return True
try:
view = resolve(path, **kwargs)
return view_name == view.view_name
except Resolver404:
return False
def technical_404_response(request, exception):
"Create a technical 404 error response. The exception should be the Http404."
try:
error_url = exception.args[0]['path']
except (IndexError, TypeError, KeyError):
error_url = request.path_info[1:] # Trim leading slash
try:
tried = exception.args[0]['tried']
except (IndexError, TypeError, KeyError):
tried = []
else:
if (not tried # empty URLconf
or (request.path == '/'
and len(tried) == 1 # default URLconf
and len(tried[0]) == 1
and getattr(tried[0][0], 'app_name', '') == getattr(tried[0][0], 'namespace', '') == 'admin')):
return default_urlconf(request)
urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
if isinstance(urlconf, types.ModuleType):
urlconf = urlconf.__name__
caller = ''
try:
resolver_match = resolve(request.path)
except Resolver404:
pass
else:
obj = resolver_match.func
if hasattr(obj, '__name__'):
caller = obj.__name__
elif hasattr(obj, '__class__') and hasattr(obj.__class__, '__name__'):
caller = obj.__class__.__name__
if hasattr(obj, '__module__'):
module = obj.__module__
caller = '%s.%s' % (module, caller)
t = DEBUG_ENGINE.from_string(TECHNICAL_404_TEMPLATE)
c = Context({
'urlconf': urlconf,
'root_urlconf': settings.ROOT_URLCONF,
'request_path': error_url,
'urlpatterns': tried,
'reason': force_bytes(exception, errors='replace'),
'request': request,
'settings': get_safe_settings(),
'raising_view_name': caller,
})
return HttpResponseNotFound(t.render(c), content_type='text/html')
def __init__(self, request):
super(CMSToolbar, self).__init__()
self.right_items = []
self.left_items = []
self.populated = False
self.post_template_populated = False
self.menus = {}
self.obj = None
self.redirect_url = None
self.request = None
self.is_staff = None
self.edit_mode = None
self.edit_mode_url_on = get_cms_setting('CMS_TOOLBAR_URL__EDIT_ON')
self.edit_mode_url_off = get_cms_setting('CMS_TOOLBAR_URL__EDIT_OFF')
self.disable_url = get_cms_setting('CMS_TOOLBAR_URL__DISABLE')
self.build_mode = None
self.use_draft = None
self.show_toolbar = None
self.login_form = None
self.clipboard = None
self.language = None
self.toolbar_language = None
self.simple_structure_mode = get_cms_setting('TOOLBAR_SIMPLE_STRUCTURE_MODE')
self.show_toolbar = True
self.init_toolbar(request)
with force_language(self.language):
try:
decorator = resolve(self.request.path_info).func
try:
# If the original view is decorated we try to extract the real function
# module instead of the decorator's one
if decorator and getattr(decorator, 'func_closure', False):
# python 2
self.app_name = decorator.func_closure[0].cell_contents.__module__
elif decorator and getattr(decorator, '__closure__', False):
# python 3
self.app_name = decorator.__closure__[0].cell_contents.__module__
else:
raise AttributeError()
except (TypeError, AttributeError):
# no decorator
self.app_name = decorator.__module__
except Resolver404:
self.app_name = ""
toolbars = toolbar_pool.get_toolbars()
parts = self.app_name.split('.')
while parts:
path = '.'.join(parts)
if path in installed_apps():
self.app_name = path
break
parts.pop()
self.toolbars = OrderedDict()
for key in toolbars:
toolbar = toolbars[key](self.request, self, toolbars[key].check_current_app(key, self.app_name), self.app_name)
self.toolbars[key] = toolbar
def technical_404_response(request, exception):
"Create a technical 404 error response. The exception should be the Http404."
try:
error_url = exception.args[0]['path']
except (IndexError, TypeError, KeyError):
error_url = request.path_info[1:] # Trim leading slash
try:
tried = exception.args[0]['tried']
except (IndexError, TypeError, KeyError):
tried = []
else:
if (not tried # empty URLconf
or (request.path == '/'
and len(tried) == 1 # default URLconf
and len(tried[0]) == 1
and getattr(tried[0][0], 'app_name', '') == getattr(tried[0][0], 'namespace', '') == 'admin')):
return default_urlconf(request)
urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
if isinstance(urlconf, types.ModuleType):
urlconf = urlconf.__name__
caller = ''
try:
resolver_match = resolve(request.path)
except Resolver404:
pass
else:
obj = resolver_match.func
if hasattr(obj, '__name__'):
caller = obj.__name__
elif hasattr(obj, '__class__') and hasattr(obj.__class__, '__name__'):
caller = obj.__class__.__name__
if hasattr(obj, '__module__'):
module = obj.__module__
caller = '%s.%s' % (module, caller)
t = DEBUG_ENGINE.from_string(TECHNICAL_404_TEMPLATE)
c = Context({
'urlconf': urlconf,
'root_urlconf': settings.ROOT_URLCONF,
'request_path': error_url,
'urlpatterns': tried,
'reason': force_bytes(exception, errors='replace'),
'request': request,
'settings': get_safe_settings(),
'raising_view_name': caller,
})
return HttpResponseNotFound(t.render(c), content_type='text/html')
def technical_404_response(request, exception):
"Create a technical 404 error response. The exception should be the Http404."
try:
error_url = exception.args[0]['path']
except (IndexError, TypeError, KeyError):
error_url = request.path_info[1:] # Trim leading slash
try:
tried = exception.args[0]['tried']
except (IndexError, TypeError, KeyError):
tried = []
else:
if (not tried # empty URLconf
or (request.path == '/'
and len(tried) == 1 # default URLconf
and len(tried[0]) == 1
and getattr(tried[0][0], 'app_name', '') == getattr(tried[0][0], 'namespace', '') == 'admin')):
return default_urlconf(request)
urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
if isinstance(urlconf, types.ModuleType):
urlconf = urlconf.__name__
caller = ''
try:
resolver_match = resolve(request.path)
except Resolver404:
pass
else:
obj = resolver_match.func
if hasattr(obj, '__name__'):
caller = obj.__name__
elif hasattr(obj, '__class__') and hasattr(obj.__class__, '__name__'):
caller = obj.__class__.__name__
if hasattr(obj, '__module__'):
module = obj.__module__
caller = '%s.%s' % (module, caller)
t = DEBUG_ENGINE.from_string(TECHNICAL_404_TEMPLATE)
c = Context({
'urlconf': urlconf,
'root_urlconf': settings.ROOT_URLCONF,
'request_path': error_url,
'urlpatterns': tried,
'reason': force_bytes(exception, errors='replace'),
'request': request,
'settings': get_safe_settings(),
'raising_view_name': caller,
})
return HttpResponseNotFound(t.render(c), content_type='text/html')
def technical_404_response(request, exception):
"Create a technical 404 error response. The exception should be the Http404."
try:
error_url = exception.args[0]['path']
except (IndexError, TypeError, KeyError):
error_url = request.path_info[1:] # Trim leading slash
try:
tried = exception.args[0]['tried']
except (IndexError, TypeError, KeyError):
tried = []
else:
if (not tried # empty URLconf
or (request.path == '/'
and len(tried) == 1 # default URLconf
and len(tried[0]) == 1
and getattr(tried[0][0], 'app_name', '') == getattr(tried[0][0], 'namespace', '') == 'admin')):
return default_urlconf(request)
urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
if isinstance(urlconf, types.ModuleType):
urlconf = urlconf.__name__
caller = ''
try:
resolver_match = resolve(request.path)
except Resolver404:
pass
else:
obj = resolver_match.func
if hasattr(obj, '__name__'):
caller = obj.__name__
elif hasattr(obj, '__class__') and hasattr(obj.__class__, '__name__'):
caller = obj.__class__.__name__
if hasattr(obj, '__module__'):
module = obj.__module__
caller = '%s.%s' % (module, caller)
t = DEBUG_ENGINE.from_string(TECHNICAL_404_TEMPLATE)
c = Context({
'urlconf': urlconf,
'root_urlconf': settings.ROOT_URLCONF,
'request_path': error_url,
'urlpatterns': tried,
'reason': force_bytes(exception, errors='replace'),
'request': request,
'settings': get_safe_settings(),
'raising_view_name': caller,
})
return HttpResponseNotFound(t.render(c), content_type='text/html')
