class TodayArchiveView

from django.views.generic import TodayArchiveView
List of objects published today.

Attributes

  Defined in
allow_empty = False BaseDateListView
allow_empty = True MultipleObjectMixin
allow_future = False DateMixin
content_type = None TemplateResponseMixin
context_object_name = None MultipleObjectMixin
date_field = None DateMixin
date_list_period = 'year' BaseDateListView
day = None DayMixin
day_format = '%d' DayMixin
extra_context = None ContextMixin
http_method_names = ['get', 'post', 'put', 'patch', 'delete', 'head', 'options', 'trace'] View
model = None MultipleObjectMixin
month = None MonthMixin
month_format = '%b' MonthMixin
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
response_class = <class 'django.template.response.TemplateResponse'> TemplateResponseMixin
template_engine = None TemplateResponseMixin
template_name = None TemplateResponseMixin
template_name_suffix = '_archive_day' TodayArchiveView
template_name_suffix = '_list' MultipleObjectTemplateResponseMixin
uses_datetime_field = <django.utils.functional.cached_property object at 0x7f34b91e99c0> DateMixin
view_is_async = False View
year = None YearMixin
year_format = '%Y' YearMixin
Expand Collapse

Methods

def __init__(self, **kwargs): View

Constructor. Called in the URLconf; can contain helpful extra
keyword arguments, and other things.
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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

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def _allowed_methods(self):
    return [m.upper() for m in self.http_method_names if hasattr(self, m)]

def _get_current_day(self, date): DayMixin

Return the start date of the current interval.
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def _get_current_day(self, date):
    """Return the start date of the current interval."""
    return date

def _get_current_month(self, date): MonthMixin

Return the start date of the previous interval.
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def _get_current_month(self, date):
    """Return the start date of the previous interval."""
    return date.replace(day=1)

def _get_current_year(self, date): YearMixin

Return the start date of the current interval.
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def _get_current_year(self, date):
    """Return the start date of the current interval."""
    return date.replace(month=1, day=1)

def _get_dated_items(self, date): BaseDayArchiveView

Do the actual heavy lifting of getting the dated items; this accepts a
date object so that TodayArchiveView can be trivial.
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def _get_dated_items(self, date):
    """
    Do the actual heavy lifting of getting the dated items; this accepts a
    date object so that TodayArchiveView can be trivial.
    """
    lookup_kwargs = self._make_single_date_lookup(date)
    qs = self.get_dated_queryset(**lookup_kwargs)
    return (
        None,
        qs,
        {
            "day": date,
            "previous_day": self.get_previous_day(date),
            "next_day": self.get_next_day(date),
            "previous_month": self.get_previous_month(date),
            "next_month": self.get_next_month(date),
        },
    )

def _get_next_day(self, date): DayMixin

Return the start date of the next interval.

The interval is defined by start date <= item date < next start date.
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def _get_next_day(self, date):
    """
    Return the start date of the next interval.
    The interval is defined by start date <= item date < next start date.
    """
    return date + datetime.timedelta(days=1)

def _get_next_month(self, date): MonthMixin

Return the start date of the next interval.

The interval is defined by start date <= item date < next start date.
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def _get_next_month(self, date):
    """
    Return the start date of the next interval.
    The interval is defined by start date <= item date < next start date.
    """
    if date.month == 12:
        try:
            return date.replace(year=date.year + 1, month=1, day=1)
        except ValueError:
            raise Http404(_("Date out of range"))
    else:
        return date.replace(month=date.month + 1, day=1)

def _get_next_year(self, date): YearMixin

Return the start date of the next interval.

The interval is defined by start date <= item date < next start date.
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def _get_next_year(self, date):
    """
    Return the start date of the next interval.
    The interval is defined by start date <= item date < next start date.
    """
    try:
        return date.replace(year=date.year + 1, month=1, day=1)
    except ValueError:
        raise Http404(_("Date out of range"))

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.
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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

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.
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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

Main entry point for a request-response process.
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@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

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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

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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

Return ``True`` if the view should display empty lists and ``False``
if a 404 should be raised instead.
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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

Return `True` if the view should be allowed to display objects from
the future.
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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):

MultipleObjectMixin

Get the context for this view.
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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

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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

Get the name of the item to be used in the context.
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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

Get the name of the date field to be used to filter by.
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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

Get a date list by calling `queryset.dates/datetimes()`, checking
along the way for empty lists that aren't allowed.
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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

Get the aggregation period for the list of dates: 'year', 'month', or
'day'.
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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):

BaseTodayArchiveView

Return (date_list, items, extra_context) for this request.
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def get_dated_items(self):
    """Return (date_list, items, extra_context) for this request."""
    return self._get_dated_items(datetime.date.today())

BaseDayArchiveView

Return (date_list, items, extra_context) for this request.
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def get_dated_items(self):
    """Return (date_list, items, extra_context) for this request."""
    year = self.get_year()
    month = self.get_month()
    day = self.get_day()
    date = _date_from_string(
        year,
        self.get_year_format(),
        month,
        self.get_month_format(),
        day,
        self.get_day_format(),
    )
    return self._get_dated_items(date)

BaseDateListView

Obtain the list of dates and items.
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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

Get a queryset properly filtered according to `allow_future` and any
extra lookup kwargs.
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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_day(self): DayMixin

Return the day for which this view should display data.
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def get_day(self):
    """Return the day for which this view should display data."""
    day = self.day
    if day is None:
        try:
            day = self.kwargs["day"]
        except KeyError:
            try:
                day = self.request.GET["day"]
            except KeyError:
                raise Http404(_("No day specified"))
    return day

def get_day_format(self): DayMixin

Get a day format string in strptime syntax to be used to parse the day
from url variables.
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def get_day_format(self):
    """
    Get a day format string in strptime syntax to be used to parse the day
    from url variables.
    """
    return self.day_format

def get_month(self): MonthMixin

Return the month for which this view should display data.
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def get_month(self):
    """Return the month for which this view should display data."""
    month = self.month
    if month is None:
        try:
            month = self.kwargs["month"]
        except KeyError:
            try:
                month = self.request.GET["month"]
            except KeyError:
                raise Http404(_("No month specified"))
    return month

def get_month_format(self): MonthMixin

Get a month format string in strptime syntax to be used to parse the
month from url variables.
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def get_month_format(self):
    """
    Get a month format string in strptime syntax to be used to parse the
    month from url variables.
    """
    return self.month_format

def get_next_day(self, date): DayMixin

Get the next valid day.
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def get_next_day(self, date):
    """Get the next valid day."""
    return _get_next_prev(self, date, is_previous=False, period="day")

def get_next_month(self, date): MonthMixin

Get the next valid month.
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def get_next_month(self, date):
    """Get the next valid month."""
    return _get_next_prev(self, date, is_previous=False, period="month")

def get_next_year(self, date): YearMixin

Get the next valid year.
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def get_next_year(self, date):
    """Get the next valid year."""
    return _get_next_prev(self, date, is_previous=False, period="year")

def get_ordering(self):

BaseDateListView

Return the field or fields to use for ordering the queryset; use the
date field by default.
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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.
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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

Get the number of items to paginate by, or ``None`` for no pagination.
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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

Return the maximum number of orphans extend the last page by when
paginating.
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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

Return an instance of the paginator for this view.
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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_previous_day(self, date): DayMixin

Get the previous valid day.
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def get_previous_day(self, date):
    """Get the previous valid day."""
    return _get_next_prev(self, date, is_previous=True, period="day")

def get_previous_month(self, date): MonthMixin

Get the previous valid month.
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def get_previous_month(self, date):
    """Get the previous valid month."""
    return _get_next_prev(self, date, is_previous=True, period="month")

def get_previous_year(self, date): YearMixin

Get the previous valid year.
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def get_previous_year(self, date):
    """Get the previous valid year."""
    return _get_next_prev(self, date, is_previous=True, period="year")

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.
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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 get_template_names(self):

MultipleObjectTemplateResponseMixin

Return a list of template names to be used for the request. Must return
a list. May not be called if render_to_response is overridden.
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def get_template_names(self):
    """
    Return a list of template names to be used for the request. Must return
    a list. May not be called if render_to_response is overridden.
    """
    try:
        names = super().get_template_names()
    except ImproperlyConfigured:
        # If template_name isn't specified, it's not a problem --
        # we just start with an empty list.
        names = []
    # If the list is a queryset, we'll invent a template name based on the
    # app and model name. This name gets put at the end of the template
    # name list so that user-supplied names override the automatically-
    # generated ones.
    if hasattr(self.object_list, "model"):
        opts = self.object_list.model._meta
        names.append(
            "%s/%s%s.html"
            % (opts.app_label, opts.model_name, self.template_name_suffix)
        )
    elif not names:
        raise ImproperlyConfigured(
            "%(cls)s requires either a 'template_name' attribute "
            "or a get_queryset() method that returns a QuerySet."
            % {
                "cls": self.__class__.__name__,
            }
        )
    return names

TemplateResponseMixin

Return a list of template names to be used for the request. Must return
a list. May not be called if render_to_response() is overridden.
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def get_template_names(self):
    """
    Return a list of template names to be used for the request. Must return
    a list. May not be called if render_to_response() is overridden.
    """
    if self.template_name is None:
        raise ImproperlyConfigured(
            "TemplateResponseMixin requires either a definition of "
            "'template_name' or an implementation of 'get_template_names()'"
        )
    else:
        return [self.template_name]

def get_year(self): YearMixin

Return the year for which this view should display data.
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def get_year(self):
    """Return the year for which this view should display data."""
    year = self.year
    if year is None:
        try:
            year = self.kwargs["year"]
        except KeyError:
            try:
                year = self.request.GET["year"]
            except KeyError:
                raise Http404(_("No year specified"))
    return year

def get_year_format(self): YearMixin

Get a year format string in strptime syntax to be used to parse the
year from url variables.
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def get_year_format(self):
    """
    Get a year format string in strptime syntax to be used to parse the
    year from url variables.
    """
    return self.year_format

def http_method_not_allowed(self, request, *args, **kwargs): View

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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

Handle responding to requests for the OPTIONS HTTP verb.
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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

Paginate the queryset, if needed.
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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 render_to_response(self, context, **response_kwargs): TemplateResponseMixin

Return a response, using the `response_class` for this view, with a
template rendered with the given context.

Pass response_kwargs to the constructor of the response class.
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def render_to_response(self, context, **response_kwargs):
    """
    Return a response, using the `response_class` for this view, with a
    template rendered with the given context.
    Pass response_kwargs to the constructor of the response class.
    """
    response_kwargs.setdefault("content_type", self.content_type)
    return self.response_class(
        request=self.request,
        template=self.get_template_names(),
        context=context,
        using=self.template_engine,
        **response_kwargs,
    )

def setup(self, request, *args, **kwargs): View

Initialize attributes shared by all view methods.
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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