161 lines
5.1 KiB
Python
161 lines
5.1 KiB
Python
from datetime import datetime
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from functools import reduce
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from django.core.paginator import EmptyPage, PageNotAnInteger, Paginator
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from django.shortcuts import get_object_or_404, render
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from django.views.generic import ListView
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from django.views.generic.dates import (
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DateDetailView,
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DayArchiveView,
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MonthArchiveView,
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YearArchiveView,
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)
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from ..staff.models import Person
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from .models import Entry, EntryTag
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def OR_filter(field_name, objs):
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from django.db.models import Q
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return reduce(lambda x, y: x | y,
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[Q(**{field_name: x.id}) for x in objs])
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def last_name(person):
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return person.formal_name.rpartition(' ')[2]
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def custom_index(request, queryset, *args, **kwargs):
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"""Blog list view that allows scrolling and also shows an index by
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year.
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"""
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extra_context = kwargs.get('extra_context', {}).copy()
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date_field = kwargs['date_field']
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if not kwargs.get('allow_future', False):
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queryset = queryset.filter(**{'%s__lte' % date_field: datetime.now()})
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authors = []
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if 'author' in request.GET:
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authors = [get_object_or_404(Person, username=author)
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for author in request.GET.getlist('author')]
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extra_context['authors'] = authors
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queryset = queryset.filter(OR_filter('author', authors))
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tags = []
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if 'tag' in request.GET:
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tags = [get_object_or_404(EntryTag, slug=tag)
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for tag in request.GET.getlist('tag')]
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extra_context['tags'] = tags
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queryset = queryset.filter(OR_filter('tags', tags))
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if authors or tags:
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query_string = '&'.join(['author=%s' % a.username for a in authors]
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+ ['tag=%s' % t.slug for t in tags])
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extra_context['query_string'] = query_string
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else:
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date_list = queryset.dates(date_field, 'year')
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extra_context['date_list'] = date_list
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paginate_by = kwargs.get('paginate_by', 6) # Show 6 news items per page, by default
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paginator = Paginator(queryset, paginate_by)
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page = request.GET.get('page')
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try:
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blog_entries = paginator.page(page)
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except PageNotAnInteger:
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# If page is not an integer, deliver first page.
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blog_entries = paginator.page(1)
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except EmptyPage:
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# If page is out of range (e.g. 9999), deliver last page of results.
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blog_entries = paginator.page(paginator.num_pages)
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extra_context['blog_entries'] = blog_entries
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return render(request, 'blog/entry_list.html', extra_context)
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def techblog_redirect(request):
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"""Redirect from the old 'techblog' to the new blog
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"""
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path = request.path[len('/technology'):]
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if path == '/blog/':
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path += "?author=bkuhn"
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return relative_redirect(request, path)
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def query(request):
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"""Page to query the blog based on authors and tags
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"""
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if request.GET:
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d = request.GET.copy()
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if 'authors' in d.getlist('all'):
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d.setlist('author', []) # remove author queries
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if 'tags' in d.getlist('all'):
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d.setlist('tag', []) # remove tag queries
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d.setlist('all', []) # remove "all" from the query string
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base_url = '/blog/'
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if 'rss' in d:
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base_url = '/feeds/blog/'
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d.setlist('rss', []) # remove it
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query_string = d.urlencode()
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return relative_redirect(request, '{}{}{}'.format(base_url, '?' if query_string else '', query_string))
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else:
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authors = sorted(Person.objects.filter(currently_employed=True,
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entry__isnull=False).distinct(),
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key=last_name)
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tags = EntryTag.objects.all().order_by('label')
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return render(request, 'blog/query.html', {'authors': authors, 'tags': tags})
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def relative_redirect(request, path):
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from django import http
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from django.conf import settings
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host = request.get_host()
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if settings.FORCE_CANONICAL_HOSTNAME:
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host = settings.FORCE_CANONICAL_HOSTNAME
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url = "{}://{}{}".format(request.is_secure() and 'https' or 'http', host, path)
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return http.HttpResponseRedirect(url)
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class BlogYearArchiveView(YearArchiveView):
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make_object_list = True
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allow_future = True
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extra_context = {}
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update(self.extra_context)
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return context
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class BlogMonthArchiveView(MonthArchiveView):
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allow_future = True
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extra_context = {}
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update(self.extra_context)
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return context
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class BlogDayArchiveView(DayArchiveView):
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allow_future = True
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extra_context = {}
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update(self.extra_context)
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return context
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class BlogDateDetailView(DateDetailView):
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allow_future = True
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extra_context = {}
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context.update(self.extra_context)
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return context
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