class BaseArchiveIndexView
from django.views.generic.dates import BaseArchiveIndexView
Base class for archives of date-based items. Requires a response mixin.
Ancestors (MRO)
- BaseArchiveIndexView
- BaseDateListView
- MultipleObjectMixin
- ContextMixin
- DateMixin
- View
Descendants
Attributes
Defined in | |
---|---|
allow_empty = False
|
BaseDateListView |
allow_empty = True
|
MultipleObjectMixin |
allow_future = False
|
DateMixin |
context_object_name = 'latest'
|
BaseArchiveIndexView |
context_object_name = None
|
MultipleObjectMixin |
date_field = None
|
DateMixin |
date_list_period = 'year'
|
BaseDateListView |
extra_context = None
|
ContextMixin |
http_method_names = ['get', 'post', 'put', 'patch', 'delete', 'head', 'options', 'trace']
|
View |
model = None
|
MultipleObjectMixin |
ordering = None
|
MultipleObjectMixin |
page_kwarg = 'page'
|
MultipleObjectMixin |
paginate_by = None
|
MultipleObjectMixin |
paginate_orphans = 0
|
MultipleObjectMixin |
paginator_class = <class 'django.core.paginator.Paginator'>
|
MultipleObjectMixin |
queryset = None
|
MultipleObjectMixin |
uses_datetime_field = <django.utils.functional.cached_property object at 0x7f18455a4ca0>
|
DateMixin |
view_is_async = False
|
View |
Methods
def
__init__(self, **kwargs):
View
¶
def
__init__(self, **kwargs):
View
¶
Constructor. Called in the URLconf; can contain helpful extra keyword arguments, and other things.
53 54 55 56 57 58 59 60 61 | def __init__(self, **kwargs):
"""
Constructor. Called in the URLconf; can contain helpful extra
keyword arguments, and other things.
"""
# Go through keyword arguments, and either save their values to our
# instance, or raise an error.
for key, value in kwargs.items():
setattr(self, key, value)
|
def
_allowed_methods(self):
View
¶
def
_allowed_methods(self):
View
¶
178 179 | def _allowed_methods(self):
return [m.upper() for m in self.http_method_names if hasattr(self, m)]
|
def
_make_date_lookup_arg(self, value):
DateMixin
¶
def
_make_date_lookup_arg(self, value):
DateMixin
¶
Convert a date into a datetime when the date field is a DateTimeField. When time zone support is enabled, `date` is assumed to be in the current time zone, so that displayed items are consistent with the URL.
269 270 271 272 273 274 275 276 277 278 279 | def _make_date_lookup_arg(self, value):
"""
Convert a date into a datetime when the date field is a DateTimeField.
When time zone support is enabled, `date` is assumed to be in the
current time zone, so that displayed items are consistent with the URL.
"""
if self.uses_datetime_field:
value = datetime.datetime.combine(value, datetime.time.min)
if settings.USE_TZ:
value = timezone.make_aware(value)
return value
|
def
_make_single_date_lookup(self, date):
DateMixin
¶
def
_make_single_date_lookup(self, date):
DateMixin
¶
Get the lookup kwargs for filtering on a single date. If the date field is a DateTimeField, we can't just filter on date_field=date because that doesn't take the time into account.
282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 | def _make_single_date_lookup(self, date):
"""
Get the lookup kwargs for filtering on a single date.
If the date field is a DateTimeField, we can't just filter on
date_field=date because that doesn't take the time into account.
"""
date_field = self.get_date_field()
if self.uses_datetime_field:
since = self._make_date_lookup_arg(date)
until = self._make_date_lookup_arg(date + datetime.timedelta(days=1))
return {
"%s__gte" % date_field: since,
"%s__lt" % date_field: until,
}
else:
# Skip self._make_date_lookup_arg, it's a no-op in this branch.
return {date_field: date}
|
def
as_view(cls, **initkwargs):
View
¶
def
as_view(cls, **initkwargs):
View
¶
Main entry point for a request-response process.
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | @classonlymethod
def as_view(cls, **initkwargs):
"""Main entry point for a request-response process."""
for key in initkwargs:
if key in cls.http_method_names:
raise TypeError(
"The method name %s is not accepted as a keyword argument "
"to %s()." % (key, cls.__name__)
)
if not hasattr(cls, key):
raise TypeError(
"%s() received an invalid keyword %r. as_view "
"only accepts arguments that are already "
"attributes of the class." % (cls.__name__, key)
)
def view(request, *args, **kwargs):
self = cls(**initkwargs)
self.setup(request, *args, **kwargs)
if not hasattr(self, "request"):
raise AttributeError(
"%s instance has no 'request' attribute. Did you override "
"setup() and forget to call super()?" % cls.__name__
)
return self.dispatch(request, *args, **kwargs)
view.view_class = cls
view.view_initkwargs = initkwargs
# __name__ and __qualname__ are intentionally left unchanged as
# view_class should be used to robustly determine the name of the view
# instead.
view.__doc__ = cls.__doc__
view.__module__ = cls.__module__
view.__annotations__ = cls.dispatch.__annotations__
# Copy possible attributes set by decorators, e.g. @csrf_exempt, from
# the dispatch method.
view.__dict__.update(cls.dispatch.__dict__)
# Mark the callback if the view class is async.
if cls.view_is_async:
markcoroutinefunction(view)
return view
|
def
dispatch(self, request, *args, **kwargs):
View
¶
def
dispatch(self, request, *args, **kwargs):
View
¶
133 134 135 136 137 138 139 140 141 142 143 | def dispatch(self, request, *args, **kwargs):
# Try to dispatch to the right method; if a method doesn't exist,
# defer to the error handler. Also defer to the error handler if the
# request method isn't on the approved list.
if request.method.lower() in self.http_method_names:
handler = getattr(
self, request.method.lower(), self.http_method_not_allowed
)
else:
handler = self.http_method_not_allowed
return handler(request, *args, **kwargs)
|
def
get(self, request, *args, **kwargs):
BaseDateListView
¶
def
get(self, request, *args, **kwargs):
BaseDateListView
¶
308 309 310 311 312 313 | def get(self, request, *args, **kwargs):
self.date_list, self.object_list, extra_context = self.get_dated_items()
context = self.get_context_data(
object_list=self.object_list, date_list=self.date_list, **extra_context
)
return self.render_to_response(context)
|
def
get_allow_empty(self):
MultipleObjectMixin
¶
def
get_allow_empty(self):
MultipleObjectMixin
¶
Return ``True`` if the view should display empty lists and ``False`` if a 404 should be raised instead.
106 107 108 109 110 111 | def get_allow_empty(self):
"""
Return ``True`` if the view should display empty lists and ``False``
if a 404 should be raised instead.
"""
return self.allow_empty
|
def
get_allow_future(self):
DateMixin
¶
def
get_allow_future(self):
DateMixin
¶
Return `True` if the view should be allowed to display objects from the future.
249 250 251 252 253 254 | def get_allow_future(self):
"""
Return `True` if the view should be allowed to display objects from
the future.
"""
return self.allow_future
|
def
get_context_data(self, **kwargs):
¶
def
get_context_data(self, **kwargs):
¶
MultipleObjectMixin
Get the context for this view.
122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | def get_context_data(self, *, object_list=None, **kwargs):
"""Get the context for this view."""
queryset = object_list if object_list is not None else self.object_list
page_size = self.get_paginate_by(queryset)
context_object_name = self.get_context_object_name(queryset)
if page_size:
paginator, page, queryset, is_paginated = self.paginate_queryset(
queryset, page_size
)
context = {
"paginator": paginator,
"page_obj": page,
"is_paginated": is_paginated,
"object_list": queryset,
}
else:
context = {
"paginator": None,
"page_obj": None,
"is_paginated": False,
"object_list": queryset,
}
if context_object_name is not None:
context[context_object_name] = queryset
context.update(kwargs)
return super().get_context_data(**context)
|
ContextMixin
29 30 31 32 33 | def get_context_data(self, **kwargs):
kwargs.setdefault("view", self)
if self.extra_context is not None:
kwargs.update(self.extra_context)
return kwargs
|
def
get_context_object_name(self, object_list):
MultipleObjectMixin
¶
def
get_context_object_name(self, object_list):
MultipleObjectMixin
¶
Get the name of the item to be used in the context.
113 114 115 116 117 118 119 120 | def get_context_object_name(self, object_list):
"""Get the name of the item to be used in the context."""
if self.context_object_name:
return self.context_object_name
elif hasattr(object_list, "model"):
return "%s_list" % object_list.model._meta.model_name
else:
return None
|
def
get_date_field(self):
DateMixin
¶
def
get_date_field(self):
DateMixin
¶
Get the name of the date field to be used to filter by.
241 242 243 244 245 246 247 | def get_date_field(self):
"""Get the name of the date field to be used to filter by."""
if self.date_field is None:
raise ImproperlyConfigured(
"%s.date_field is required." % self.__class__.__name__
)
return self.date_field
|
def
get_date_list(self, queryset, date_type=None, ordering='ASC'):
BaseDateListView
¶
def
get_date_list(self, queryset, date_type=None, ordering='ASC'):
BaseDateListView
¶
Get a date list by calling `queryset.dates/datetimes()`, checking along the way for empty lists that aren't allowed.
364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 | def get_date_list(self, queryset, date_type=None, ordering="ASC"):
"""
Get a date list by calling `queryset.dates/datetimes()`, checking
along the way for empty lists that aren't allowed.
"""
date_field = self.get_date_field()
allow_empty = self.get_allow_empty()
if date_type is None:
date_type = self.get_date_list_period()
if self.uses_datetime_field:
date_list = queryset.datetimes(date_field, date_type, ordering)
else:
date_list = queryset.dates(date_field, date_type, ordering)
if date_list is not None and not date_list and not allow_empty:
raise Http404(
_("No %(verbose_name_plural)s available")
% {
"verbose_name_plural": queryset.model._meta.verbose_name_plural,
}
)
return date_list
|
def
get_date_list_period(self):
BaseDateListView
¶
def
get_date_list_period(self):
BaseDateListView
¶
Get the aggregation period for the list of dates: 'year', 'month', or 'day'.
357 358 359 360 361 362 | def get_date_list_period(self):
"""
Get the aggregation period for the list of dates: 'year', 'month', or
'day'.
"""
return self.date_list_period
|
def
get_dated_items(self):
¶
def
get_dated_items(self):
¶
BaseArchiveIndexView
Return (date_list, items, extra_context) for this request.
396 397 398 399 400 401 402 | def get_dated_items(self):
"""Return (date_list, items, extra_context) for this request."""
qs = self.get_dated_queryset()
date_list = self.get_date_list(qs, ordering="DESC")
if not date_list:
qs = qs.none()
return (date_list, qs, {})
|
BaseDateListView
Obtain the list of dates and items.
315 316 317 318 319 | def get_dated_items(self):
"""Obtain the list of dates and items."""
raise NotImplementedError(
"A DateView must provide an implementation of get_dated_items()"
)
|
def
get_dated_queryset(self, **lookup):
BaseDateListView
¶
def
get_dated_queryset(self, **lookup):
BaseDateListView
¶
Get a queryset properly filtered according to `allow_future` and any extra lookup kwargs.
328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 | def get_dated_queryset(self, **lookup):
"""
Get a queryset properly filtered according to `allow_future` and any
extra lookup kwargs.
"""
qs = self.get_queryset().filter(**lookup)
date_field = self.get_date_field()
allow_future = self.get_allow_future()
allow_empty = self.get_allow_empty()
paginate_by = self.get_paginate_by(qs)
if not allow_future:
now = timezone.now() if self.uses_datetime_field else timezone_today()
qs = qs.filter(**{"%s__lte" % date_field: now})
if not allow_empty:
# When pagination is enabled, it's better to do a cheap query
# than to load the unpaginated queryset in memory.
is_empty = not qs if paginate_by is None else not qs.exists()
if is_empty:
raise Http404(
_("No %(verbose_name_plural)s available")
% {
"verbose_name_plural": qs.model._meta.verbose_name_plural,
}
)
return qs
|
def
get_ordering(self):
¶
def
get_ordering(self):
¶
BaseDateListView
Return the field or fields to use for ordering the queryset; use the date field by default.
321 322 323 324 325 326 | def get_ordering(self):
"""
Return the field or fields to use for ordering the queryset; use the
date field by default.
"""
return "-%s" % self.get_date_field() if self.ordering is None else self.ordering
|
MultipleObjectMixin
Return the field or fields to use for ordering the queryset.
49 50 51 | def get_ordering(self):
"""Return the field or fields to use for ordering the queryset."""
return self.ordering
|
def
get_paginate_by(self, queryset):
MultipleObjectMixin
¶
def
get_paginate_by(self, queryset):
MultipleObjectMixin
¶
Get the number of items to paginate by, or ``None`` for no pagination.
81 82 83 84 85 | def get_paginate_by(self, queryset):
"""
Get the number of items to paginate by, or ``None`` for no pagination.
"""
return self.paginate_by
|
def
get_paginate_orphans(self):
MultipleObjectMixin
¶
def
get_paginate_orphans(self):
MultipleObjectMixin
¶
Return the maximum number of orphans extend the last page by when paginating.
99 100 101 102 103 104 | def get_paginate_orphans(self):
"""
Return the maximum number of orphans extend the last page by when
paginating.
"""
return self.paginate_orphans
|
def
get_paginator(self, queryset, per_page, orphans=0, allow_empty_first_page=True, **kwargs):
MultipleObjectMixin
¶
def
get_paginator(self, queryset, per_page, orphans=0, allow_empty_first_page=True, **kwargs):
MultipleObjectMixin
¶
Return an instance of the paginator for this view.
87 88 89 90 91 92 93 94 95 96 97 | def get_paginator(
self, queryset, per_page, orphans=0, allow_empty_first_page=True, **kwargs
):
"""Return an instance of the paginator for this view."""
return self.paginator_class(
queryset,
per_page,
orphans=orphans,
allow_empty_first_page=allow_empty_first_page,
**kwargs,
)
|
def
get_queryset(self):
MultipleObjectMixin
¶
def
get_queryset(self):
MultipleObjectMixin
¶
Return the list of items for this view. The return value must be an iterable and may be an instance of `QuerySet` in which case `QuerySet` specific behavior will be enabled.
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | def get_queryset(self):
"""
Return the list of items for this view.
The return value must be an iterable and may be an instance of
`QuerySet` in which case `QuerySet` specific behavior will be enabled.
"""
if self.queryset is not None:
queryset = self.queryset
if isinstance(queryset, QuerySet):
queryset = queryset.all()
elif self.model is not None:
queryset = self.model._default_manager.all()
else:
raise ImproperlyConfigured(
"%(cls)s is missing a QuerySet. Define "
"%(cls)s.model, %(cls)s.queryset, or override "
"%(cls)s.get_queryset()." % {"cls": self.__class__.__name__}
)
ordering = self.get_ordering()
if ordering:
if isinstance(ordering, str):
ordering = (ordering,)
queryset = queryset.order_by(*ordering)
return queryset
|
def
http_method_not_allowed(self, request, *args, **kwargs):
View
¶
def
http_method_not_allowed(self, request, *args, **kwargs):
View
¶
145 146 147 148 149 150 151 152 153 154 155 156 157 158 | def http_method_not_allowed(self, request, *args, **kwargs):
logger.warning(
"Method Not Allowed (%s): %s",
request.method,
request.path,
extra={"status_code": 405, "request": request},
)
response = HttpResponseNotAllowed(self._allowed_methods())
if self.view_is_async:
async def func():
return response
return func()
else:
return response
|
def
options(self, request, *args, **kwargs):
View
¶
def
options(self, request, *args, **kwargs):
View
¶
Handle responding to requests for the OPTIONS HTTP verb.
163 164 165 166 167 168 169 170 171 172 173 | def options(self, request, *args, **kwargs):
"""Handle responding to requests for the OPTIONS HTTP verb."""
response = HttpResponse()
response.headers["Allow"] = ", ".join(self._allowed_methods())
response.headers["Content-Length"] = "0"
if self.view_is_async:
async def func():
return response
return func()
else:
return response
|
def
paginate_queryset(self, queryset, page_size):
MultipleObjectMixin
¶
def
paginate_queryset(self, queryset, page_size):
MultipleObjectMixin
¶
Paginate the queryset, if needed.
53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | def paginate_queryset(self, queryset, page_size):
"""Paginate the queryset, if needed."""
paginator = self.get_paginator(
queryset,
page_size,
orphans=self.get_paginate_orphans(),
allow_empty_first_page=self.get_allow_empty(),
)
page_kwarg = self.page_kwarg
page = self.kwargs.get(page_kwarg) or self.request.GET.get(page_kwarg) or 1
try:
page_number = int(page)
except ValueError:
if page == "last":
page_number = paginator.num_pages
else:
raise Http404(
_("Page is not “last”, nor can it be converted to an int.")
)
try:
page = paginator.page(page_number)
return (paginator, page, page.object_list, page.has_other_pages())
except InvalidPage as e:
raise Http404(
_("Invalid page (%(page_number)s): %(message)s")
% {"page_number": page_number, "message": str(e)}
)
|
def
setup(self, request, *args, **kwargs):
View
¶
def
setup(self, request, *args, **kwargs):
View
¶
Initialize attributes shared by all view methods.
125 126 127 128 129 130 131 | def setup(self, request, *args, **kwargs):
"""Initialize attributes shared by all view methods."""
if hasattr(self, "get") and not hasattr(self, "head"):
self.head = self.get
self.request = request
self.args = args
self.kwargs = kwargs
|