Django.fun ☰

Класс WeekMixin (Django 2.1)

from django.views.generic.dates import WeekMixin

Mixin for views manipulating week-based data.

Диаграмма | Documentation | Исходный код

Атрибуты

  Определено в
week = None WeekMixin
week_format = '%U' WeekMixin

Методы

Get the next valid week.
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def get_next_week(self, date):
    """Get the next valid week."""
    return _get_next_prev(self, date, is_previous=False, period='week')

Get the previous valid week.
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def get_previous_week(self, date):
    """Get the previous valid week."""
    return _get_next_prev(self, date, is_previous=True, period='week')

Возвращает неделю, для которой в этом представлении должны отображаться данные.
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def get_week(self):
    """Return the week for which this view should display data."""
    week = self.week
    if week is None:
        try:
            week = self.kwargs['week']
        except KeyError:
            try:
                week = self.request.GET['week']
            except KeyError:
                raise Http404(_("No week specified"))
    return week

Получает строку формата недели в синтаксисе strptime, которая будет использоваться для анализа недели по переменным URL.
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def get_week_format(self):
    """
    Get a week format string in strptime syntax to be used to parse the
    week from url variables.
    """
    return self.week_format

Возвращает дату начала текущего интервала.
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def _get_current_week(self, date):
    """Return the start date of the current interval."""
    return date - datetime.timedelta(self._get_weekday(date))

Возвращает дату начала следующего интервала.

Интервал определяется датой начала <= дата элемента < следующая дата начала.
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def _get_next_week(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 + datetime.timedelta(days=7 - self._get_weekday(date))
    except OverflowError:
        raise Http404(_("Date out of range"))

Return the weekday for a given date.

The first day according to the week format is 0 and the last day is 6.
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def _get_weekday(self, date):
    """
    Return the weekday for a given date.
    The first day according to the week format is 0 and the last day is 6.
    """
    week_format = self.get_week_format()
    if week_format == '%W':                 # week starts on Monday
        return date.weekday()
    elif week_format == '%U':               # week starts on Sunday
        return (date.weekday() + 1) % 7
    else:
        raise ValueError("unknown week format: %s" % week_format)
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