323 lines
12 KiB
Python
323 lines
12 KiB
Python
from django.template import loader, RequestContext
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from django.core.exceptions import ObjectDoesNotExist
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from django.core.xheaders import populate_xheaders
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from django.http import Http404, HttpResponse
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import datetime, time
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def archive_index(request, queryset, date_field, num_latest=15,
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template_name=None, template_loader=loader,
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extra_context=None, allow_empty=False, context_processors=None,
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mimetype=None):
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"""
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Generic top-level archive of date-based objects.
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Templates: ``<app_label>/<model_name>_archive.html``
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Context:
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date_list
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List of years
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latest
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Latest N (defaults to 15) objects by date
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"""
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if extra_context is None: extra_context = {}
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model = queryset.model
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queryset = queryset.filter(**{'%s__lte' % date_field: datetime.datetime.now()})
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date_list = queryset.dates(date_field, 'year')[::-1]
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if not date_list and not allow_empty:
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raise Http404, "No %s available" % model._meta.verbose_name
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if date_list and num_latest:
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latest = queryset.order_by('-'+date_field)[:num_latest]
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else:
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latest = None
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if not template_name:
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template_name = "%s/%s_archive.html" % (model._meta.app_label, model._meta.object_name.lower())
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t = template_loader.get_template(template_name)
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c = RequestContext(request, {
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'date_list' : date_list,
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'latest' : latest,
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}, context_processors)
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for key, value in extra_context.items():
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if callable(value):
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c[key] = value()
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else:
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c[key] = value
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return HttpResponse(t.render(c), mimetype=mimetype)
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def archive_year(request, year, queryset, date_field, template_name=None,
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template_loader=loader, extra_context=None, allow_empty=False,
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context_processors=None, template_object_name='object', mimetype=None,
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make_object_list=False):
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"""
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Generic yearly archive view.
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Templates: ``<app_label>/<model_name>_archive_year.html``
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Context:
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date_list
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List of months in this year with objects
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year
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This year
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object_list
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List of objects published in the given month
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(Only available if make_object_list argument is True)
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"""
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if extra_context is None: extra_context = {}
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model = queryset.model
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now = datetime.datetime.now()
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lookup_kwargs = {'%s__year' % date_field: year}
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# Only bother to check current date if the year isn't in the past.
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if int(year) >= now.year:
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lookup_kwargs['%s__lte' % date_field] = now
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date_list = queryset.filter(**lookup_kwargs).dates(date_field, 'month')
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if not date_list and not allow_empty:
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raise Http404
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if make_object_list:
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object_list = queryset.filter(**lookup_kwargs).order_by(date_field)
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else:
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object_list = []
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if not template_name:
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template_name = "%s/%s_archive_year.html" % (model._meta.app_label, model._meta.object_name.lower())
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t = template_loader.get_template(template_name)
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c = RequestContext(request, {
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'date_list': date_list,
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'year': year,
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'%s_list' % template_object_name: object_list,
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}, context_processors)
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for key, value in extra_context.items():
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if callable(value):
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c[key] = value()
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else:
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c[key] = value
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return HttpResponse(t.render(c), mimetype=mimetype)
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def archive_month(request, year, month, queryset, date_field,
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month_format='%b', template_name=None, template_loader=loader,
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extra_context=None, allow_empty=False, context_processors=None,
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template_object_name='object', mimetype=None):
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"""
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Generic monthly archive view.
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Templates: ``<app_label>/<model_name>_archive_month.html``
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Context:
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month:
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(date) this month
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next_month:
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(date) the first day of the next month, or None if the next month is in the future
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previous_month:
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(date) the first day of the previous month
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object_list:
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list of objects published in the given month
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"""
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if extra_context is None: extra_context = {}
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try:
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date = datetime.date(*time.strptime(year+month, '%Y'+month_format)[:3])
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except ValueError:
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raise Http404
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model = queryset.model
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now = datetime.datetime.now()
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# Calculate first and last day of month, for use in a date-range lookup.
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first_day = date.replace(day=1)
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if first_day.month == 12:
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last_day = first_day.replace(year=first_day.year + 1, month=1)
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else:
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last_day = first_day.replace(month=first_day.month + 1)
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lookup_kwargs = {'%s__range' % date_field: (first_day, last_day)}
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# Only bother to check current date if the month isn't in the past.
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if last_day >= now.date():
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lookup_kwargs['%s__lte' % date_field] = now
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object_list = queryset.filter(**lookup_kwargs)
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if not object_list and not allow_empty:
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raise Http404
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if not template_name:
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template_name = "%s/%s_archive_month.html" % (model._meta.app_label, model._meta.object_name.lower())
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t = template_loader.get_template(template_name)
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c = RequestContext(request, {
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'%s_list' % template_object_name: object_list,
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'month': date,
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'next_month': (last_day < datetime.date.today()) and (last_day + datetime.timedelta(days=1)) or None,
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'previous_month': first_day - datetime.timedelta(days=1),
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}, context_processors)
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for key, value in extra_context.items():
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if callable(value):
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c[key] = value()
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else:
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c[key] = value
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return HttpResponse(t.render(c), mimetype=mimetype)
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def archive_week(request, year, week, queryset, date_field,
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template_name=None, template_loader=loader,
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extra_context=None, allow_empty=True, context_processors=None,
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template_object_name='object', mimetype=None):
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"""
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Generic weekly archive view.
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Templates: ``<app_label>/<model_name>_archive_week.html``
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Context:
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week:
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(date) this week
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object_list:
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list of objects published in the given week
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"""
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if extra_context is None: extra_context = {}
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try:
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date = datetime.date(*time.strptime(year+'-0-'+week, '%Y-%w-%U')[:3])
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except ValueError:
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raise Http404
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model = queryset.model
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now = datetime.datetime.now()
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# Calculate first and last day of week, for use in a date-range lookup.
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first_day = date
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last_day = date + datetime.timedelta(days=7)
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lookup_kwargs = {'%s__range' % date_field: (first_day, last_day)}
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# Only bother to check current date if the week isn't in the past.
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if last_day >= now.date():
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lookup_kwargs['%s__lte' % date_field] = now
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object_list = queryset.filter(**lookup_kwargs)
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if not object_list and not allow_empty:
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raise Http404
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if not template_name:
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template_name = "%s/%s_archive_week.html" % (model._meta.app_label, model._meta.object_name.lower())
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t = template_loader.get_template(template_name)
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c = RequestContext(request, {
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'%s_list' % template_object_name: object_list,
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'week': date,
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})
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for key, value in extra_context.items():
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if callable(value):
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c[key] = value()
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else:
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c[key] = value
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return HttpResponse(t.render(c), mimetype=mimetype)
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def archive_day(request, year, month, day, queryset, date_field,
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month_format='%b', day_format='%d', template_name=None,
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template_loader=loader, extra_context=None, allow_empty=False,
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context_processors=None, template_object_name='object',
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mimetype=None):
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"""
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Generic daily archive view.
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Templates: ``<app_label>/<model_name>_archive_day.html``
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Context:
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object_list:
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list of objects published that day
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day:
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(datetime) the day
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previous_day
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(datetime) the previous day
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next_day
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(datetime) the next day, or None if the current day is today
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"""
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if extra_context is None: extra_context = {}
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try:
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date = datetime.date(*time.strptime(year+month+day, '%Y'+month_format+day_format)[:3])
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except ValueError:
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raise Http404
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model = queryset.model
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now = datetime.datetime.now()
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lookup_kwargs = {
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'%s__range' % date_field: (datetime.datetime.combine(date, datetime.time.min), datetime.datetime.combine(date, datetime.time.max)),
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}
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# Only bother to check current date if the date isn't in the past.
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if date >= now.date():
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lookup_kwargs['%s__lte' % date_field] = now
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object_list = queryset.filter(**lookup_kwargs)
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if not allow_empty and not object_list:
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raise Http404
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if not template_name:
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template_name = "%s/%s_archive_day.html" % (model._meta.app_label, model._meta.object_name.lower())
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t = template_loader.get_template(template_name)
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c = RequestContext(request, {
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'%s_list' % template_object_name: object_list,
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'day': date,
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'previous_day': date - datetime.timedelta(days=1),
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'next_day': (date < datetime.date.today()) and (date + datetime.timedelta(days=1)) or None,
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}, context_processors)
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for key, value in extra_context.items():
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if callable(value):
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c[key] = value()
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else:
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c[key] = value
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return HttpResponse(t.render(c), mimetype=mimetype)
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def archive_today(request, **kwargs):
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"""
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Generic daily archive view for today. Same as archive_day view.
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"""
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today = datetime.date.today()
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kwargs.update({
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'year': str(today.year),
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'month': today.strftime('%b').lower(),
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'day': str(today.day),
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})
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return archive_day(request, **kwargs)
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def object_detail(request, year, month, day, queryset, date_field,
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month_format='%b', day_format='%d', object_id=None, slug=None,
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slug_field=None, template_name=None, template_name_field=None,
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template_loader=loader, extra_context=None, context_processors=None,
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template_object_name='object', mimetype=None):
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"""
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Generic detail view from year/month/day/slug or year/month/day/id structure.
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Templates: ``<app_label>/<model_name>_detail.html``
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Context:
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object:
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the object to be detailed
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"""
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if extra_context is None: extra_context = {}
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try:
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date = datetime.date(*time.strptime(year+month+day, '%Y'+month_format+day_format)[:3])
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except ValueError:
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raise Http404
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model = queryset.model
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now = datetime.datetime.now()
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lookup_kwargs = {
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'%s__range' % date_field: (datetime.datetime.combine(date, datetime.time.min), datetime.datetime.combine(date, datetime.time.max)),
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}
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# Only bother to check current date if the date isn't in the past.
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if date >= now.date():
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lookup_kwargs['%s__lte' % date_field] = now
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if object_id:
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lookup_kwargs['%s__exact' % model._meta.pk.name] = object_id
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elif slug and slug_field:
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lookup_kwargs['%s__exact' % slug_field] = slug
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else:
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raise AttributeError, "Generic detail view must be called with either an object_id or a slug/slugfield"
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try:
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obj = queryset.get(**lookup_kwargs)
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except ObjectDoesNotExist:
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raise Http404, "No %s found for" % model._meta.verbose_name
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if not template_name:
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template_name = "%s/%s_detail.html" % (model._meta.app_label, model._meta.object_name.lower())
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if template_name_field:
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template_name_list = [getattr(obj, template_name_field), template_name]
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t = template_loader.select_template(template_name_list)
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else:
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t = template_loader.get_template(template_name)
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c = RequestContext(request, {
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template_object_name: obj,
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}, context_processors)
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for key, value in extra_context.items():
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if callable(value):
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c[key] = value()
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else:
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c[key] = value
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response = HttpResponse(t.render(c), mimetype=mimetype)
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populate_xheaders(request, response, model, getattr(obj, obj._meta.pk.name))
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return response
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