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dd� Z dS )� YearMixinz-Mixin for views manipulating year-based data.z%YNc C � | j S )zv
Get a year format string in strptime syntax to be used to parse the
year from url variables.
)� year_format��self� r �</usr/lib/python3/dist-packages/django/views/generic/dates.py�get_year_format � zYearMixin.get_year_formatc C �b | j }|du r/z| jd }W |S ty. z
| jjd }W Y |S ty- ttd���w w |S )z8Return the year for which this view should display data.N�yearzNo year specified)r �kwargs�KeyError�request�GETr �_)r r r r r �get_year � � � ��zYearMixin.get_yearc C � t | |ddd�S )zGet the next valid year.Fr �� is_previous�period��_get_next_prev�r �dater r r �
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Return the start date of the next interval.
The interval is defined by start date <= item date < next start date.
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Get a month format string in strptime syntax to be used to parse the
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�zMonthMixin._get_next_monthc C s |j dd�S )z/Return the start date of the previous interval.r- )r0 r7 r' r r r �_get_current_months s z MonthMixin._get_current_month) r9 r: r; r< r> r/ r? r@ rA rB rD rE r r r r r= D s
r= c @ r )�DayMixinz,Mixin for views manipulating day-based data.z%dNc C r )zt
Get a day format string in strptime syntax to be used to parse the day
from url variables.
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day_formatr r r r �get_day_format} r zDayMixin.get_day_formatc C r )z7Return the day for which this view should display data.Nr0 zNo day specified)r0 r r r r r r )r r0 r r r �get_day� r zDayMixin.get_dayc C r! )zGet the next valid day.Fr0 r" r% r' r r r � get_next_day� r* zDayMixin.get_next_dayc C r! )zGet the previous valid day.Tr0 r" r% r' r r r �get_previous_day� r* zDayMixin.get_previous_dayc C s |t jdd� S )r, r- ��days)�datetime� timedeltar' r r r �
_get_next_day� s zDayMixin._get_next_dayc C s |S �r5 r r' r r r �_get_current_day� s zDayMixin._get_current_day) r9 r: r; r< rG r0 rH rI rJ rK rP rR r r r r rF x s
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dd� Z dd� Z dS )� WeekMixinz-Mixin for views manipulating week-based data.�%UNc C r )zv
Get a week format string in strptime syntax to be used to parse the
week from url variables.
)� week_formatr r r r �get_week_format� r zWeekMixin.get_week_formatc C r )z8Return the week for which this view should display data.N�weekzNo week specified)rW r r r r r r )r rW r r r �get_week� r zWeekMixin.get_weekc C r! )zGet the next valid week.FrW r" r% r' r r r �
get_next_week� r* zWeekMixin.get_next_weekc C r! )z Get the previous valid week.TrW r" r% r' r r r �get_previous_week� r* zWeekMixin.get_previous_weekc C s8 z|t jd| �|� d� W S ty ttd���w )r, � rL r1 )rN rO � _get_weekday�
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Return the weekday for a given date.
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td| jj ��| j S )z7Get the name of the date field to be used to filter by.Nz%s.date_field is required.)�
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the future.
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Convert a date into a datetime when the date field is a DateTimeField.
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Get the lookup kwargs for filtering on a single date.
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date_field=date because that doesn't take the time into account.
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ddd�Z dS )�BaseDateListViewzFAbstract base class for date-based views displaying a list of objects.Fr c O s6 | � � \| _| _}| jd| j| jd�|��}| �|�S )N)� object_list� date_listr )�get_dated_itemsr r~ �get_context_data�render_to_response)r r �argsr �
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Return the field or fields to use for ordering the queryset; use the
date field by default.
N�-%s)�orderingrf r r r r � get_ordering7 s z BaseDateListView.get_orderingc K s� | � � jdi |��}| �� }| �� }| �� }| �|�}|s3| jr$t�� nt � }|jdi d| |i��}|sP|du r<| n|�
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Get a queryset properly filtered according to `allow_future` and any
extra lookup kwargs.
�%s__lteN�$No %(verbose_name_plural)s available�verbose_name_pluralr )rj �filterrf rh �get_allow_empty�get_paginate_byrp r �now�timezone_today�existsr r ri rk r� ) r �lookup�qsrd rg � allow_empty� paginate_byr� �is_emptyr r r �get_dated_queryset> s
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Get the aggregation period for the list of dates: 'year', 'month', or
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��z BaseDateListView.get_date_list)Nr� ) r9 r: r; r< r� r� r� r� r� r� r� r� r r r r r} % s r} c @ � e Zd ZdZdZdd� ZdS )�BaseArchiveIndexViewzQ
Base class for archives of date-based items. Requires a response mixin.
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z$BaseArchiveIndexView.get_dated_itemsN)r9 r: r; r< �context_object_namer� r r r r r� w s r� c @ � e Zd ZdZdZdS )�ArchiveIndexViewz&Top-level archive of date-based items.�_archiveN�r9 r: r; r< �template_name_suffixr r r r r� � � r� c @ s( e Zd ZdZdZdZdd� Zdd� ZdS ) �BaseYearArchiveView�*List of objects published in a given year.r/ Fc C s� | � � }| �� }t|| �� �}| �|�}| �| �|��}d| |d| |i}| jdi |��}| �|�}| �� s;|� � }|||| �
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Return `True` if this view should contain the full list of objects in
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�fS )r� �1�0)ra rT r` z'Unknown week format %r. Choices are: %sz, r` z%GzeISO week directive '%s' is incompatible with the year directive '%s'. Use the ISO year '%%G' instead.z%wrx ry N)rW � next_week�
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��z#BaseWeekArchiveView.get_dated_itemsN�r9 r: r; r< r� r r r r r� � � r� c @ r� )�WeekArchiveViewr� �
_archive_weekNr� r r r r r� r� r� c @ s e Zd ZdZdd� Zdd� ZdS )�BaseDayArchiveView�)List of objects published on a given day.c C s@ | � � }| �� }| �� }t|| �� || �� || �� �}| �|�S �r� )r r@ rI r� r r? rH �_get_dated_items)r r r/ r0 r( r r r r� s
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z"BaseDayArchiveView.get_dated_itemsc C sH | � |�}| jdi |��}d||| �|�| �|�| �|�| �|�d�fS )z�
Do the actual heavy lifting of getting the dated items; this accepts a
date object so that TodayArchiveView can be trivial.
N)r0 � previous_day�next_dayr� r� r )r| r� rK rJ rB rA )r r( r� r� r r r r� s
�z#BaseDayArchiveView._get_dated_itemsN)r9 r: r; r< r� r� r r r r r� s r� c @ r� )�DayArchiveViewr� � _archive_dayNr� r r r r r� - r� r� c @ r� )�BaseTodayArchiveView� List of objects published today.c C s | � tj�� �S r� )r� rN r( �todayr r r r r� 5 r* z$BaseTodayArchiveView.get_dated_itemsNr� r r r r r� 2 r� r� c @ r� )�TodayArchiveViewr� r� Nr� r r r r r� : r� r� c s" e Zd ZdZd� fdd� Z� ZS )�BaseDateDetailView��
Detail view of a single object on a single date; this differs from the
standard DetailView by accepting a year/month/day in the URL.
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d�|jjj| jjd� ��| �|�}|jdi |��}t� j|d�S )z%Get the object this request displays.NzZFuture %(verbose_name_plural)s not available because %(class_name)s.allow_future is False.)r� �
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Get a datetime.date object given a format string and a year, month, and day
(only year is mandatory). Raise a 404 for an invalid date.
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Get the next or the previous valid date. The idea is to allow links on
month/day views to never be 404s by never providing a date that'll be
invalid for the given view.
This is a bit complicated since it handles different intervals of time,
hence the coupling to generic_view.
However in essence the logic comes down to:
* If allow_empty and allow_future are both true, this is easy: just
return the naive result (just the next/previous day/week/month,
regardless of object existence.)
* If allow_empty is true, allow_future is false, and the naive result
isn't in the future, then return it; otherwise return None.
* If allow_empty is false and allow_future is true, return the next
date *that contains a valid object*, even if it's in the future. If
there are no next objects, return None.
* If allow_empty is false and allow_future is false, return the next
date that contains a valid object. If that date is in the future, or
if there are no next objects, return None.
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r& c C s t jrt�� S tj�� S )z1Return the current date in the current time zone.)r rt r � localdaterN r( r� r r r r r� � s
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