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