diff --git a/django/views/generic/dates.py b/django/views/generic/dates.py index d44246f0b7..52e13a4533 100644 --- a/django/views/generic/dates.py +++ b/django/views/generic/dates.py @@ -372,6 +372,9 @@ class BaseDateListView(MultipleObjectMixin, DateMixin, View): return qs 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_date_list(self, queryset, date_type=None): diff --git a/docs/ref/class-based-views/generic-date-based.txt b/docs/ref/class-based-views/generic-date-based.txt index 12776cbb94..64b269f514 100644 --- a/docs/ref/class-based-views/generic-date-based.txt +++ b/docs/ref/class-based-views/generic-date-based.txt @@ -2,13 +2,15 @@ Generic date views ================== -Date-based generic views (in the module :mod:`django.views.generic.dates`) -are views for displaying drilldown pages for date-based data. +.. module:: django.views.generic.dates + +Date-based generic views, provided in :mod:`django.views.generic.dates`, are +views for displaying drilldown pages for date-based data. ArchiveIndexView ---------------- -.. class:: django.views.generic.dates.ArchiveIndexView +.. class:: ArchiveIndexView A top-level index page showing the "latest" objects, by date. Objects with a date in the *future* are not included unless you set ``allow_future`` to @@ -36,7 +38,7 @@ ArchiveIndexView YearArchiveView --------------- -.. class:: django.views.generic.dates.YearArchiveView +.. class:: YearArchiveView A yearly archive page showing all available months in a given year. Objects with a date in the *future* are not displayed unless you set @@ -58,13 +60,15 @@ YearArchiveView A boolean specifying whether to retrieve the full list of objects for this year and pass those to the template. If ``True``, the list of - objects will be made available to the context. By default, this is + objects will be made available to the context. If ``False``, the + ``None`` queryset will be used as the object list. By default, this is ``False``. .. method:: get_make_object_list() - Determine if an object list will be returned as part of the context. If - ``False``, the ``None`` queryset will be used as the object list. + Determine if an object list will be returned as part of the context. + Returns :attr:`~YearArchiveView.make_object_list` by default. + **Context** @@ -80,16 +84,18 @@ YearArchiveView :class:`datetime.datetime` objects, in ascending order. - * ``year``: A :class:`datetime.date` object + * ``year``: A :class:`~datetime.date` object representing the given year. - * ``next_year``: A :class:`datetime.date` object - representing the first day of the next year. If the next year is in the - future, this will be ``None``. + * ``next_year``: A :class:`~datetime.date` object + representing the first day of the next year, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. - * ``previous_year``: A :class:`datetime.date` object - representing the first day of the previous year. Unlike ``next_year``, - this will never be ``None``. + * ``previous_year``: A :class:`~datetime.date` object + representing the first day of the previous year, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. **Notes** @@ -98,7 +104,7 @@ YearArchiveView MonthArchiveView ---------------- -.. class:: django.views.generic.dates.MonthArchiveView +.. class:: MonthArchiveView A monthly archive page showing all objects in a given month. Objects with a date in the *future* are not displayed unless you set ``allow_future`` to @@ -131,16 +137,18 @@ MonthArchiveView :class:`datetime.datetime` objects, in ascending order. - * ``month``: A :class:`datetime.date` object + * ``month``: A :class:`~datetime.date` object representing the given month. - * ``next_month``: A :class:`datetime.date` object - representing the first day of the next month. If the next month is in the - future, this will be ``None``. + * ``next_month``: A :class:`~datetime.date` object + representing the first day of the next month, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. - * ``previous_month``: A :class:`datetime.date` object - representing the first day of the previous month. Unlike ``next_month``, - this will never be ``None``. + * ``previous_month``: A :class:`~datetime.date` object + representing the first day of the previous month, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. **Notes** @@ -149,7 +157,7 @@ MonthArchiveView WeekArchiveView --------------- -.. class:: django.views.generic.dates.WeekArchiveView +.. class:: WeekArchiveView A weekly archive page showing all objects in a given week. Objects with a date in the *future* are not displayed unless you set ``allow_future`` to @@ -175,16 +183,18 @@ WeekArchiveView :class:`~django.views.generic.dates.BaseDateListView`), the template's context will be: - * ``week``: A :class:`datetime.date` object + * ``week``: A :class:`~datetime.date` object representing the first day of the given week. - * ``next_week``: A :class:`datetime.date` object - representing the first day of the next week. If the next week is in the - future, this will be ``None``. + * ``next_week``: A :class:`~datetime.date` object + representing the first day of the next week, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. - * ``previous_week``: A :class:`datetime.date` object - representing the first day of the previous week. Unlike ``next_week``, - this will never be ``None``. + * ``previous_week``: A :class:`~datetime.date` object + representing the first day of the previous week, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. **Notes** @@ -193,7 +203,7 @@ WeekArchiveView DayArchiveView -------------- -.. class:: django.views.generic.dates.DayArchiveView +.. class:: DayArchiveView A day archive page showing all objects in a given day. Days in the future throw a 404 error, regardless of whether any objects exist for future days, @@ -220,24 +230,28 @@ DayArchiveView :class:`~django.views.generic.dates.BaseDateListView`), the template's context will be: - * ``day``: A :class:`datetime.date` object + * ``day``: A :class:`~datetime.date` object representing the given day. - * ``next_day``: A :class:`datetime.date` object - representing the next day. If the next day is in the future, this will be - ``None``. + * ``next_day``: A :class:`~datetime.date` object + representing the next day, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. - * ``previous_day``: A :class:`datetime.date` object - representing the previous day. Unlike ``next_day``, this will never be - ``None``. + * ``previous_day``: A :class:`~datetime.date` object + representing the previous day, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. - * ``next_month``: A :class:`datetime.date` object - representing the first day of the next month. If the next month is in the - future, this will be ``None``. + * ``next_month``: A :class:`~datetime.date` object + representing the first day of the next month, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. - * ``previous_month``: A :class:`datetime.date` object - representing the first day of the previous month. Unlike ``next_month``, - this will never be ``None``. + * ``previous_month``: A :class:`~datetime.date` object + representing the first day of the previous month, according to + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. **Notes** @@ -246,7 +260,7 @@ DayArchiveView TodayArchiveView ---------------- -.. class:: django.views.generic.dates.TodayArchiveView +.. class:: TodayArchiveView A day archive page showing all objects for *today*. This is exactly the same as :class:`django.views.generic.dates.DayArchiveView`, except today's @@ -271,7 +285,7 @@ TodayArchiveView DateDetailView -------------- -.. class:: django.views.generic.dates.DateDetailView +.. class:: DateDetailView A page representing an individual object. If the object has a date value in the future, the view will throw a 404 error by default, unless you set @@ -293,6 +307,22 @@ DateDetailView .. note:: - All of the generic views listed above have matching Base* views that only - differ in that the they do not include the - :class:`~django.views.generic.detail.SingleObjectTemplateResponseMixin`. + All of the generic views listed above have matching ``Base`` views that + only differ in that the they do not include the + :class:`~django.views.generic.detail.SingleObjectTemplateResponseMixin`: + + .. class:: BaseArchiveIndexView + + .. class:: BaseYearArchiveView + + .. class:: BaseMonthArchiveView + + .. class:: BaseWeekArchiveView + + .. class:: BaseDayArchiveView + + .. class:: BaseTodayArchiveView + + .. class:: BaseDateDetailView + + diff --git a/docs/ref/class-based-views/mixins-date-based.txt b/docs/ref/class-based-views/mixins-date-based.txt index 6bf6f10b5d..01181ebb6c 100644 --- a/docs/ref/class-based-views/mixins-date-based.txt +++ b/docs/ref/class-based-views/mixins-date-based.txt @@ -2,11 +2,12 @@ Date-based mixins ================= +.. currentmodule:: django.views.generic.dates YearMixin --------- -.. class:: django.views.generic.dates.YearMixin +.. class:: YearMixin A mixin that can be used to retrieve and provide parsing information for a year component of a date. @@ -20,29 +21,45 @@ YearMixin .. attribute:: year - **Optional** The value for the year (as a string). By default, set to + **Optional** The value for the year, as a string. By default, set to ``None``, which means the year will be determined using other means. .. method:: get_year_format() - Returns the :func:`~time.strftime` format to use when parsing the year. Returns - :attr:`YearMixin.year_format` by default. + Returns the :func:`~time.strftime` format to use when parsing the + year. Returns :attr:`~YearMixin.year_format` by default. .. method:: get_year() - Returns the year for which this view will display data. Tries the - following sources, in order: + Returns the year for which this view will display data, as a string. + Tries the following sources, in order: * The value of the :attr:`YearMixin.year` attribute. - * The value of the `year` argument captured in the URL pattern + * The value of the `year` argument captured in the URL pattern. * The value of the `year` GET query argument. Raises a 404 if no valid year specification can be found. + .. method:: get_next_year(date) + + Returns a date object containing the first day of the year after the + date provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. + + .. method:: get_previous_year(date) + + Returns a date object containing the first day of the year before the + date provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. + MonthMixin ---------- -.. class:: django.views.generic.dates.MonthMixin +.. class:: MonthMixin A mixin that can be used to retrieve and provide parsing information for a month component of a date. @@ -51,26 +68,26 @@ MonthMixin .. attribute:: month_format - The :func:`~time.strftime` format to use when parsing the month. By default, this is - ``'%b'``. + The :func:`~time.strftime` format to use when parsing the month. By + default, this is ``'%b'``. .. attribute:: month - **Optional** The value for the month (as a string). By default, set to + **Optional** The value for the month, as a string. By default, set to ``None``, which means the month will be determined using other means. .. method:: get_month_format() - Returns the :func:`~time.strftime` format to use when parsing the month. Returns - :attr:`MonthMixin.month_format` by default. + Returns the :func:`~time.strftime` format to use when parsing the + month. Returns :attr:`~MonthMixin.month_format` by default. .. method:: get_month() - Returns the month for which this view will display data. Tries the - following sources, in order: + Returns the month for which this view will display data, as a string. + Tries the following sources, in order: * The value of the :attr:`MonthMixin.month` attribute. - * The value of the `month` argument captured in the URL pattern + * The value of the `month` argument captured in the URL pattern. * The value of the `month` GET query argument. Raises a 404 if no valid month specification can be found. @@ -78,20 +95,23 @@ MonthMixin .. method:: get_next_month(date) Returns a date object containing the first day of the month after the - date provided. Returns ``None`` if mixed with a view that sets - ``allow_future = False``, and the next month is in the future. If - ``allow_empty = False``, returns the next month that contains data. + date provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. .. method:: get_prev_month(date) Returns a date object containing the first day of the month before the - date provided. If ``allow_empty = False``, returns the previous month - that contained data. + date provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. DayMixin -------- -.. class:: django.views.generic.dates.DayMixin +.. class:: DayMixin A mixin that can be used to retrieve and provide parsing information for a day component of a date. @@ -100,46 +120,50 @@ DayMixin .. attribute:: day_format - The :func:`~time.strftime` format to use when parsing the day. By default, this is - ``'%d'``. + The :func:`~time.strftime` format to use when parsing the day. By + default, this is ``'%d'``. .. attribute:: day - **Optional** The value for the day (as a string). By default, set to + **Optional** The value for the day, as a string. By default, set to ``None``, which means the day will be determined using other means. .. method:: get_day_format() - Returns the :func:`~time.strftime` format to use when parsing the day. Returns - :attr:`DayMixin.day_format` by default. + Returns the :func:`~time.strftime` format to use when parsing the day. + Returns :attr:`~DayMixin.day_format` by default. .. method:: get_day() - Returns the day for which this view will display data. Tries the - following sources, in order: + Returns the day for which this view will display data, as a string. + Tries the following sources, in order: * The value of the :attr:`DayMixin.day` attribute. - * The value of the `day` argument captured in the URL pattern + * The value of the `day` argument captured in the URL pattern. * The value of the `day` GET query argument. Raises a 404 if no valid day specification can be found. .. method:: get_next_day(date) - Returns a date object containing the next day after the date provided. - Returns ``None`` if mixed with a view that sets ``allow_future = False``, - and the next day is in the future. If ``allow_empty = False``, returns - the next day that contains data. + Returns a date object containing the next valid day after the date + provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. .. method:: get_prev_day(date) - Returns a date object containing the previous day. If - ``allow_empty = False``, returns the previous day that contained data. + Returns a date object containing the previous valid day. This function + can also return ``None`` or raise an :class:`~django.http.Http404` + exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. WeekMixin --------- -.. class:: django.views.generic.dates.WeekMixin +.. class:: WeekMixin A mixin that can be used to retrieve and provide parsing information for a week component of a date. @@ -148,23 +172,24 @@ WeekMixin .. attribute:: week_format - The :func:`~time.strftime` format to use when parsing the week. By default, this is - ``'%U'``. + The :func:`~time.strftime` format to use when parsing the week. By + default, this is ``'%U'``, which means the week starts on Sunday. Set + it to ``'%W'`` if your week starts on Monday. .. attribute:: week - **Optional** The value for the week (as a string). By default, set to + **Optional** The value for the week, as a string. By default, set to ``None``, which means the week will be determined using other means. .. method:: get_week_format() - Returns the :func:`~time.strftime` format to use when parsing the week. Returns - :attr:`WeekMixin.week_format` by default. + Returns the :func:`~time.strftime` format to use when parsing the + week. Returns :attr:`~WeekMixin.week_format` by default. .. method:: get_week() - Returns the week for which this view will display data. Tries the - following sources, in order: + Returns the week for which this view will display data, as a string. + Tries the following sources, in order: * The value of the :attr:`WeekMixin.week` attribute. * The value of the `week` argument captured in the URL pattern @@ -172,11 +197,26 @@ WeekMixin Raises a 404 if no valid week specification can be found. + .. method:: get_next_week(date) + + Returns a date object containing the first day of the week after the + date provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. + + .. method:: get_prev_week(date) + + Returns a date object containing the first day of the week before the + date provided. This function can also return ``None`` or raise an + :class:`~django.http.Http404` exception, depending on the values of + :attr:`~BaseDateListView.allow_empty` and + :attr:`~DateMixin.allow_future`. DateMixin --------- -.. class:: django.views.generic.dates.DateMixin +.. class:: DateMixin A mixin class providing common behavior for all date-based views. @@ -186,7 +226,7 @@ DateMixin The name of the ``DateField`` or ``DateTimeField`` in the ``QuerySet``'s model that the date-based archive should use to - determine the objects on the page. + determine the list of objects to display on the page. When :doc:`time zone support ` is enabled and ``date_field`` is a ``DateTimeField``, dates are assumed to be in the @@ -210,26 +250,26 @@ DateMixin .. method:: get_date_field() Returns the name of the field that contains the date data that this - view will operate on. Returns :attr:`DateMixin.date_field` by default. + view will operate on. Returns :attr:`~DateMixin.date_field` by default. .. method:: get_allow_future() Determine whether to include "future" objects on this page, where "future" means objects in which the field specified in ``date_field`` is greater than the current date/time. Returns - :attr:`DateMixin.allow_future` by default. + :attr:`~DateMixin.allow_future` by default. BaseDateListView ---------------- -.. class:: django.views.generic.dates.BaseDateListView +.. class:: BaseDateListView A base class that provides common behavior for all date-based views. There won't normally be a reason to instantiate :class:`~django.views.generic.dates.BaseDateListView`; instantiate one of the subclasses instead. - While this view (and it's subclasses) are executing, ``self.object_list`` + While this view (and its subclasses) are executing, ``self.object_list`` will contain the list of objects that the view is operating upon, and ``self.date_list`` will contain the list of dates for which data is available. @@ -245,10 +285,18 @@ BaseDateListView A boolean specifying whether to display the page if no objects are available. If this is ``True`` and no objects are available, the view - will display an empty page instead of raising a 404. By default, this - is ``False``. + will display an empty page instead of raising a 404. - .. method:: get_dated_items(): + This is identical to :attr:`MultipleObjectMixin.allow_empty`, except + for the default value, which is ``False``. + + .. attribute:: date_list_period + + **Optional** A string defining the aggregation period for + ``date_list``. It must be one of ``'year'`` (default), ``'month'``, or + ``'day'``. + + .. method:: get_dated_items() Returns a 3-tuple containing (``date_list``, ``object_list``, ``extra_context``). @@ -265,10 +313,17 @@ BaseDateListView ``lookup``. Enforces any restrictions on the queryset, such as ``allow_empty`` and ``allow_future``. - .. method:: get_date_list(queryset, date_type) + .. method:: get_date_list_period() - Returns the list of dates of type ``date_type`` for which - ``queryset`` contains entries. For example, ``get_date_list(qs, - 'year')`` will return the list of years for which ``qs`` has entries. - See :meth:`~django.db.models.query.QuerySet.dates()` for the - ways that the ``date_type`` argument can be used. + Returns the aggregation period for ``date_list``. Returns + :attr:`~BaseDateListView.date_list_period` by default. + + .. method:: get_date_list(queryset, date_type=None) + + Returns the list of dates of type ``date_type`` for which ``queryset`` + contains entries. For example, ``get_date_list(qs, 'year')`` will + return the list of years for which ``qs`` has entries. If + ``date_type`` isn't provided, the result of + :meth:`BaseDateListView.get_date_list_period` is used. See + :meth:`~django.db.models.query.QuerySet.dates()` for the ways that the + ``date_type`` argument can be used.