224 lines
8.1 KiB
Python
224 lines
8.1 KiB
Python
from django.core import template_loader
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from django.core.exceptions import Http404, ObjectDoesNotExist
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from django.core.extensions import DjangoContext as Context
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from django.core.xheaders import populate_xheaders
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from django.models import get_module
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from django.utils.httpwrappers import HttpResponse
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import datetime, time
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def archive_index(request, app_label, module_name, date_field, num_latest=15, template_name=None, extra_lookup_kwargs={}, extra_context=None):
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"""
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Generic top-level archive of date-based objects.
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Templates: ``<app_label>/<module_name>_archive``
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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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mod = get_module(app_label, module_name)
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lookup_kwargs = {'%s__lte' % date_field: datetime.datetime.now()}
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lookup_kwargs.update(extra_lookup_kwargs)
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date_list = getattr(mod, "get_%s_list" % date_field)('year', **lookup_kwargs)[::-1]
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if not date_list:
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raise Http404("No %s.%s available" % (app_label, module_name))
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if num_latest:
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lookup_kwargs.update({
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'limit': num_latest,
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'order_by': ((date_field, 'DESC'),),
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})
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latest = mod.get_list(**lookup_kwargs)
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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" % (app_label, module_name)
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t = template_loader.get_template(template_name)
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c = Context(request, {
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'date_list' : date_list,
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'latest' : latest,
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})
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if extra_context:
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c.update(extra_context)
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return HttpResponse(t.render(c))
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def archive_year(request, year, app_label, module_name, date_field, template_name=None, extra_lookup_kwargs={}, extra_context=None):
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"""
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Generic yearly archive view.
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Templates: ``<app_label>/<module_name>_archive_year``
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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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"""
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mod = get_module(app_label, module_name)
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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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lookup_kwargs.update(extra_lookup_kwargs)
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date_list = getattr(mod, "get_%s_list" % date_field)('month', **lookup_kwargs)
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if not date_list:
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raise Http404
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if not template_name:
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template_name = "%s/%s_archive_year" % (app_label, module_name)
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t = template_loader.get_template(template_name)
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c = Context(request, {
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'date_list': date_list,
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'year': year,
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})
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if extra_context:
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c.update(extra_context)
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return HttpResponse(t.render(c))
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def archive_month(request, year, month, app_label, module_name, date_field, template_name=None, extra_lookup_kwargs={}, extra_context=None):
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"""
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Generic monthly archive view.
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Templates: ``<app_label>/<module_name>_archive_month``
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Context:
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month:
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this 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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try:
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date = datetime.date(*time.strptime(year+month, '%Y%b')[:3])
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except ValueError:
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raise Http404
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mod = get_module(app_label, module_name)
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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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last_day = date
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for i in (31, 30, 29, 28):
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try:
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last_day = last_day.replace(day=i)
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except ValueError:
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continue
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else:
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break
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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 date >= now:
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lookup_kwargs['%s__lte' % date_field] = now
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lookup_kwargs.update(extra_lookup_kwargs)
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object_list = mod.get_list(**lookup_kwargs)
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if 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_month" % (app_label, module_name)
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t = template_loader.get_template(template_name)
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c = Context(request, {
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'object_list': object_list,
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'month': date,
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})
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if extra_context:
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c.update(extra_context)
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return HttpResponse(t.render(c))
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def archive_day(request, year, month, day, app_label, module_name, date_field, template_name=None, extra_lookup_kwargs={}, extra_context=None, allow_empty=False):
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"""
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Generic daily archive view.
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Templates: ``<app_label>/<module_name>_archive_day``
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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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try:
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date = datetime.date(*time.strptime(year+month+day, '%Y%b%d')[:3])
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except ValueError:
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raise Http404
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mod = get_module(app_label, module_name)
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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:
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lookup_kwargs['%s__lte' % date_field] = now
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lookup_kwargs.update(extra_lookup_kwargs)
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object_list = mod.get_list(**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" % (app_label, module_name)
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t = template_loader.get_template(template_name)
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c = Context(request, {
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'object_list': 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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})
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if extra_context:
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c.update(extra_context)
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return HttpResponse(t.render(c))
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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, app_label, module_name, date_field, object_id=None, slug=None, slug_field=None, template_name=None, extra_lookup_kwargs={}, extra_context=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>/<module_name>_detail``
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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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try:
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date = datetime.date(*time.strptime(year+month+day, '%Y%b%d')[:3])
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except ValueError:
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raise Http404
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mod = get_module(app_label, module_name)
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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:
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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' % mod.Klass._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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lookup_kwargs.update(extra_lookup_kwargs)
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try:
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object = mod.get_object(**lookup_kwargs)
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except ObjectDoesNotExist:
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raise Http404("%s.%s does not exist for %s" % (app_label, module_name, lookup_kwargs))
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if not template_name:
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template_name = "%s/%s_detail" % (app_label, module_name)
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t = template_loader.get_template(template_name)
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c = Context(request, {
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'object': object,
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})
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if extra_context:
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c.update(extra_context)
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response = HttpResponse(t.render(c))
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populate_xheaders(request, response, app_label, module_name, getattr(object, object._meta.pk.name))
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return response
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