X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/54d1617957cfa3a8c9ffd714ad6c4bef09e727de..677e193e0d79c7370e01df25e67f0498dc3a947b:/philo/contrib/penfield/models.py diff --git a/philo/contrib/penfield/models.py b/philo/contrib/penfield/models.py index 6955069..a57459c 100644 --- a/philo/contrib/penfield/models.py +++ b/philo/contrib/penfield/models.py @@ -1,310 +1,43 @@ +# encoding: utf-8 from datetime import date, datetime from django.conf import settings from django.conf.urls.defaults import url, patterns, include -from django.contrib.sites.models import Site, RequestSite -from django.contrib.syndication.views import add_domain from django.db import models from django.http import Http404, HttpResponse -from django.template import RequestContext, Template as DjangoTemplate -from django.utils import feedgenerator, tzinfo -from django.utils.datastructures import SortedDict -from django.utils.encoding import smart_unicode, force_unicode -from django.utils.html import escape +from taggit.managers import TaggableManager +from taggit.models import Tag, TaggedItem -from philo.contrib.penfield.exceptions import HttpNotAcceptable -from philo.contrib.penfield.middleware import http_not_acceptable -from philo.contrib.penfield.validators import validate_pagination_count +from philo.contrib.winer.models import FeedView from philo.exceptions import ViewCanNotProvideSubpath -from philo.models import Tag, Titled, Entity, MultiView, Page, register_value_model, TemplateField, Template +from philo.models import Entity, Page, register_value_model +from philo.models.fields import TemplateField from philo.utils import paginate -try: - import mimeparse -except: - mimeparse = None - -ATOM = feedgenerator.Atom1Feed.mime_type -RSS = feedgenerator.Rss201rev2Feed.mime_type -FEEDS = SortedDict([ - (ATOM, feedgenerator.Atom1Feed), - (RSS, feedgenerator.Rss201rev2Feed), -]) -FEED_CHOICES = ( - (ATOM, "Atom"), - (RSS, "RSS"), -) - - -class FeedView(MultiView): - """ - The FeedView expects to handle a number of different feeds for the - same object - i.e. patterns for a blog to handle all entries or - just entries for a certain year/month/day. - - This class would subclass django.contrib.syndication.views.Feed, but - that would make it callable, which causes problems. - """ - feed_type = models.CharField(max_length=50, choices=FEED_CHOICES, default=ATOM) - feed_suffix = models.CharField(max_length=255, blank=False, default="feed") - feeds_enabled = models.BooleanField(default=True) - feed_length = models.PositiveIntegerField(blank=True, null=True, default=15, help_text="The maximum number of items to return for this feed. All items will be returned if this field is blank.") - - item_title_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_title_related") - item_description_template = models.ForeignKey(Template, blank=True, null=True, related_name="%(app_label)s_%(class)s_description_related") - - item_context_var = 'items' - object_attr = 'object' - - description = "" - - def feed_patterns(self, base, get_items_attr, page_attr, reverse_name): - """ - Given the name to be used to reverse this view and the names of - the attributes for the function that fetches the objects, returns - patterns suitable for inclusion in urlpatterns. - """ - urlpatterns = patterns('') - if self.feeds_enabled: - feed_reverse_name = "%s_feed" % reverse_name - feed_view = http_not_acceptable(self.feed_view(get_items_attr, feed_reverse_name)) - feed_pattern = r'%s%s%s$' % (base, (base and base[-1] != "^") and "/" or "", self.feed_suffix) - urlpatterns += patterns('', - url(feed_pattern, feed_view, name=feed_reverse_name), - ) - urlpatterns += patterns('', - url(r"%s$" % base, self.page_view(get_items_attr, page_attr), name=reverse_name) - ) - return urlpatterns - - def get_object(self, request, **kwargs): - return getattr(self, self.object_attr) +class Blog(Entity): + """Represents a blog which can be posted to.""" + #: The name of the :class:`Blog`, currently called 'title' for historical reasons. + title = models.CharField(max_length=255) - def feed_view(self, get_items_attr, reverse_name): - """ - Returns a view function that renders a list of items as a feed. - """ - get_items = callable(get_items_attr) and get_items_attr or getattr(self, get_items_attr) - - def inner(request, extra_context=None, *args, **kwargs): - obj = self.get_object(request, *args, **kwargs) - feed = self.get_feed(obj, request, reverse_name) - items, xxx = get_items(request, extra_context=extra_context, *args, **kwargs) - self.populate_feed(feed, items, request) - - response = HttpResponse(mimetype=feed.mime_type) - feed.write(response, 'utf-8') - return response - - return inner - - def page_view(self, get_items_attr, page_attr): - """ - Returns a view function that renders a list of items as a page. - """ - get_items = callable(get_items_attr) and get_items_attr or getattr(self, get_items_attr) - page = isinstance(page_attr, Page) and page_attr or getattr(self, page_attr) - - def inner(request, extra_context=None, *args, **kwargs): - items, extra_context = get_items(request, extra_context=extra_context, *args, **kwargs) - items, item_context = self.process_page_items(request, items) - - context = self.get_context() - context.update(extra_context or {}) - context.update(item_context or {}) - - return page.render_to_response(request, extra_context=context) - return inner - - def process_page_items(self, request, items): - """ - Hook for handling any extra processing of items based on a - request, such as pagination or searching. This method is - expected to return a list of items and a dictionary to be - added to the page context. - """ - item_context = { - self.item_context_var: items - } - return items, item_context - - def get_feed_type(self, request): - feed_type = self.feed_type - if feed_type not in FEEDS: - feed_type = FEEDS.keys()[0] - accept = request.META.get('HTTP_ACCEPT') - if accept and feed_type not in accept and "*/*" not in accept and "%s/*" % feed_type.split("/")[0] not in accept: - # Wups! They aren't accepting the chosen format. Is there another format we can use? - if mimeparse: - feed_type = mimeparse.best_match(FEEDS.keys(), accept) - else: - for feed_type in FEEDS.keys(): - if feed_type in accept or "%s/*" % feed_type.split("/")[0] in accept: - break - else: - feed_type = None - if not feed_type: - raise HttpNotAcceptable - return FEEDS[feed_type] - - def get_feed(self, obj, request, reverse_name): - """ - Returns an unpopulated feedgenerator.DefaultFeed object for this object. - """ - try: - current_site = Site.objects.get_current() - except Site.DoesNotExist: - current_site = RequestSite(request) - - feed_type = self.get_feed_type(request) - node = request.node - link = node.get_absolute_url(with_domain=True, request=request, secure=request.is_secure()) - - feed = feed_type( - title = self.__get_dynamic_attr('title', obj), - subtitle = self.__get_dynamic_attr('subtitle', obj), - link = link, - description = self.__get_dynamic_attr('description', obj), - language = settings.LANGUAGE_CODE.decode(), - feed_url = add_domain( - current_site.domain, - self.__get_dynamic_attr('feed_url', obj) or node.construct_url(node.subpath, with_domain=True, request=request, secure=request.is_secure()), - request.is_secure() - ), - author_name = self.__get_dynamic_attr('author_name', obj), - author_link = self.__get_dynamic_attr('author_link', obj), - author_email = self.__get_dynamic_attr('author_email', obj), - categories = self.__get_dynamic_attr('categories', obj), - feed_copyright = self.__get_dynamic_attr('feed_copyright', obj), - feed_guid = self.__get_dynamic_attr('feed_guid', obj), - ttl = self.__get_dynamic_attr('ttl', obj), - **self.feed_extra_kwargs(obj) - ) - return feed + #: A slug used to identify the :class:`Blog`. + slug = models.SlugField(max_length=255) - def populate_feed(self, feed, items, request): - if self.item_title_template: - title_template = DjangoTemplate(self.item_title_template.code) - else: - title_template = None - if self.item_description_template: - description_template = DjangoTemplate(self.item_description_template.code) - else: - description_template = None - - node = request.node - try: - current_site = Site.objects.get_current() - except Site.DoesNotExist: - current_site = RequestSite(request) - - if self.feed_length is not None: - items = items[:self.feed_length] - - for item in items: - if title_template is not None: - title = title_template.render(RequestContext(request, {'obj': item})) - else: - title = self.__get_dynamic_attr('item_title', item) - if description_template is not None: - description = description_template.render(RequestContext(request, {'obj': item})) - else: - description = self.__get_dynamic_attr('item_description', item) - - link = node.construct_url(self.reverse(obj=item), with_domain=True, request=request, secure=request.is_secure()) - - enc = None - enc_url = self.__get_dynamic_attr('item_enclosure_url', item) - if enc_url: - enc = feedgenerator.Enclosure( - url = smart_unicode(add_domain( - current_site.domain, - enc_url, - request.is_secure() - )), - length = smart_unicode(self.__get_dynamic_attr('item_enclosure_length', item)), - mime_type = smart_unicode(self.__get_dynamic_attr('item_enclosure_mime_type', item)) - ) - author_name = self.__get_dynamic_attr('item_author_name', item) - if author_name is not None: - author_email = self.__get_dynamic_attr('item_author_email', item) - author_link = self.__get_dynamic_attr('item_author_link', item) - else: - author_email = author_link = None - - pubdate = self.__get_dynamic_attr('item_pubdate', item) - if pubdate and not pubdate.tzinfo: - ltz = tzinfo.LocalTimezone(pubdate) - pubdate = pubdate.replace(tzinfo=ltz) - - feed.add_item( - title = title, - link = link, - description = description, - unique_id = self.__get_dynamic_attr('item_guid', item, link), - enclosure = enc, - pubdate = pubdate, - author_name = author_name, - author_email = author_email, - author_link = author_link, - categories = self.__get_dynamic_attr('item_categories', item), - item_copyright = self.__get_dynamic_attr('item_copyright', item), - **self.item_extra_kwargs(item) - ) - - def __get_dynamic_attr(self, attname, obj, default=None): - try: - attr = getattr(self, attname) - except AttributeError: - return default - if callable(attr): - # Check func_code.co_argcount rather than try/excepting the - # function and catching the TypeError, because something inside - # the function may raise the TypeError. This technique is more - # accurate. - if hasattr(attr, 'func_code'): - argcount = attr.func_code.co_argcount - else: - argcount = attr.__call__.func_code.co_argcount - if argcount == 2: # one argument is 'self' - return attr(obj) - else: - return attr() - return attr - - def feed_extra_kwargs(self, obj): - """ - Returns an extra keyword arguments dictionary that is used when - initializing the feed generator. - """ - return {} - - def item_extra_kwargs(self, item): - """ - Returns an extra keyword arguments dictionary that is used with - the `add_item` call of the feed generator. - """ - return {} - - def item_title(self, item): - return escape(force_unicode(item)) - - def item_description(self, item): - return force_unicode(item) + def __unicode__(self): + return self.title - class Meta: - abstract=True - - -class Blog(Entity, Titled): @property def entry_tags(self): - """ Returns a QuerySet of Tags that are used on any entries in this blog. """ - return Tag.objects.filter(blogentries__blog=self).distinct() + """Returns a :class:`QuerySet` of :class:`.Tag`\ s that are used on any entries in this blog.""" + entry_pks = list(self.entries.values_list('pk', flat=True)) + kwargs = { + '%s__object_id__in' % TaggedItem.tag_relname(): entry_pks + } + return TaggedItem.tags_for(BlogEntry).filter(**kwargs) @property def entry_dates(self): + """Returns a dictionary of date :class:`QuerySet`\ s for years, months, and days for which there are entries.""" dates = {'year': self.entries.dates('date', 'year', order='DESC'), 'month': self.entries.dates('date', 'month', order='DESC'), 'day': self.entries.dates('date', 'day', order='DESC')} return dates @@ -312,19 +45,40 @@ class Blog(Entity, Titled): register_value_model(Blog) -class BlogEntry(Entity, Titled): +class BlogEntry(Entity): + """Represents an entry in a :class:`Blog`.""" + #: The title of the :class:`BlogEntry`. + title = models.CharField(max_length=255) + + #: A slug which identifies the :class:`BlogEntry`. + slug = models.SlugField(max_length=255) + + #: The :class:`Blog` which this entry has been posted to. Can be left blank to represent a "draft" status. blog = models.ForeignKey(Blog, related_name='entries', blank=True, null=True) + + #: A :class:`ForeignKey` to the author. The model is either :setting:`PHILO_PERSON_MODULE` or :class:`auth.User`. author = models.ForeignKey(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='blogentries') + + #: The date and time which the :class:`BlogEntry` is considered posted at. date = models.DateTimeField(default=None) - content = models.TextField() - excerpt = models.TextField(blank=True, null=True) - tags = models.ManyToManyField(Tag, related_name='blogentries', blank=True, null=True) + + #: The content of the :class:`BlogEntry`. + content = TemplateField() + + #: An optional brief excerpt from the :class:`BlogEntry`. + excerpt = TemplateField(blank=True, null=True) + + #: A ``django-taggit`` :class:`TaggableManager`. + tags = TaggableManager() def save(self, *args, **kwargs): if self.date is None: self.date = datetime.now() super(BlogEntry, self).save(*args, **kwargs) + def __unicode__(self): + return self.title + class Meta: ordering = ['-date'] verbose_name_plural = "blog entries" @@ -335,6 +89,10 @@ register_value_model(BlogEntry) class BlogView(FeedView): + """ + A subclass of :class:`.FeedView` which handles patterns and feeds for a :class:`Blog` and its related :class:`entries `. + + """ ENTRY_PERMALINK_STYLE_CHOICES = ( ('D', 'Year, month, and day'), ('M', 'Year and month'), @@ -343,29 +101,44 @@ class BlogView(FeedView): ('N', 'No base') ) + #: The :class:`Blog` whose entries should be managed by this :class:`BlogView` blog = models.ForeignKey(Blog, related_name='blogviews') + #: The main page of the :class:`Blog` will be rendered with this :class:`.Page`. index_page = models.ForeignKey(Page, related_name='blog_index_related') + #: The detail view of a :class:`BlogEntry` will be rendered with this :class:`Page`. entry_page = models.ForeignKey(Page, related_name='blog_entry_related') # TODO: entry_archive is misleading. Rename to ymd_page or timespan_page. + #: Views of :class:`BlogEntry` archives will be rendered with this :class:`Page` (optional). entry_archive_page = models.ForeignKey(Page, related_name='blog_entry_archive_related', null=True, blank=True) + #: Views of :class:`BlogEntry` archives according to their :class:`.Tag`\ s will be rendered with this :class:`Page`. tag_page = models.ForeignKey(Page, related_name='blog_tag_related') + #: The archive of all available tags will be rendered with this :class:`Page` (optional). tag_archive_page = models.ForeignKey(Page, related_name='blog_tag_archive_related', null=True, blank=True) - entries_per_page = models.IntegerField(blank=True, validators=[validate_pagination_count], null=True) - + #: This number will be passed directly into pagination for :class:`BlogEntry` list pages. Pagination will be disabled if this is left blank. + entries_per_page = models.IntegerField(blank=True, null=True) + + #: Depending on the needs of the site, different permalink styles may be appropriate. Example subpaths are provided for a :class:`BlogEntry` posted on May 2nd, 2011 with a slug of "hello". The choices are: + #: + #: * Year, month, and day - ``2011/05/02/hello`` + #: * Year and month - ``2011/05/hello`` + #: * Year - ``2011/hello`` + #: * Custom base - :attr:`entry_permalink_base`\ ``/hello`` + #: * No base - ``hello`` entry_permalink_style = models.CharField(max_length=1, choices=ENTRY_PERMALINK_STYLE_CHOICES) + #: If the :attr:`entry_permalink_style` is set to "Custom base" then the value of this field will be used as the base subpath for year/month/day entry archive pages and entry detail pages. Default: "entries" entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries') + #: This will be used as the base for the views of :attr:`tag_page` and :attr:`tag_archive_page`. Default: "tags" tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags') item_context_var = 'entries' - object_attr = 'blog' def __unicode__(self): return u'BlogView for %s' % self.blog.title def get_reverse_params(self, obj): if isinstance(obj, BlogEntry): - if obj.blog == self.blog: + if obj.blog_id == self.blog_id: kwargs = {'slug': obj.slug} if self.entry_permalink_style in 'DMY': kwargs.update({'year': str(obj.date.year).zfill(4)}) @@ -377,7 +150,7 @@ class BlogView(FeedView): elif isinstance(obj, Tag) or (isinstance(obj, models.query.QuerySet) and obj.model == Tag and obj): if isinstance(obj, Tag): obj = [obj] - slugs = [tag.slug for tag in obj if tag in self.get_tag_queryset()] + slugs = [tag.slug for tag in obj if tag in self.get_tag_queryset(self.blog)] if slugs: return 'entries_by_tag', [], {'tag_slugs': "/".join(slugs)} elif isinstance(obj, (date, datetime)): @@ -391,21 +164,21 @@ class BlogView(FeedView): @property def urlpatterns(self): - urlpatterns = self.feed_patterns(r'^', 'get_all_entries', 'index_page', 'index') +\ - self.feed_patterns(r'^%s/(?P[-\w]+[-+/\w]*)$' % self.tag_permalink_base, 'get_entries_by_tag', 'tag_page', 'entries_by_tag') + urlpatterns = self.feed_patterns(r'^', 'get_entries', 'index_page', 'index') +\ + self.feed_patterns(r'^%s/(?P[-\w]+[-+/\w]*)' % self.tag_permalink_base, 'get_entries', 'tag_page', 'entries_by_tag') - if self.tag_archive_page: + if self.tag_archive_page_id: urlpatterns += patterns('', url((r'^%s$' % self.tag_permalink_base), self.tag_archive_view, name='tag_archive') ) - if self.entry_archive_page: + if self.entry_archive_page_id: if self.entry_permalink_style in 'DMY': - urlpatterns += self.feed_patterns(r'^(?P\d{4})', 'get_entries_by_ymd', 'entry_archive_page', 'entries_by_year') + urlpatterns += self.feed_patterns(r'^(?P\d{4})', 'get_entries', 'entry_archive_page', 'entries_by_year') if self.entry_permalink_style in 'DM': - urlpatterns += self.feed_patterns(r'^(?P\d{4})/(?P\d{2})', 'get_entries_by_ymd', 'entry_archive_page', 'entries_by_month') + urlpatterns += self.feed_patterns(r'^(?P\d{4})/(?P\d{2})', 'get_entries', 'entry_archive_page', 'entries_by_month') if self.entry_permalink_style == 'D': - urlpatterns += self.feed_patterns(r'^(?P\d{4})/(?P\d{2})/(?P\d{2})', 'get_entries_by_ymd', 'entry_archive_page', 'entries_by_day') + urlpatterns += self.feed_patterns(r'^(?P\d{4})/(?P\d{2})/(?P\d{2})', 'get_entries', 'entry_archive_page', 'entries_by_day') if self.entry_permalink_style == 'D': urlpatterns += patterns('', @@ -424,62 +197,81 @@ class BlogView(FeedView): url((r'^%s/(?P[-\w]+)$' % self.entry_permalink_base), self.entry_view) ) else: - urlpatterns = patterns('', + urlpatterns += patterns('', url(r'^(?P[-\w]+)$', self.entry_view) ) return urlpatterns - def get_context(self): - return {'blog': self.blog} - - def get_entry_queryset(self): - return self.blog.entries.all() - - def get_tag_queryset(self): - return self.blog.entry_tags + def get_entry_queryset(self, obj): + """Returns the default :class:`QuerySet` of :class:`BlogEntry` instances for the :class:`BlogView` - all entries that are considered posted in the past. This allows for scheduled posting of entries.""" + return obj.entries.filter(date__lte=datetime.now()) - def get_all_entries(self, request, extra_context=None): - return self.get_entry_queryset(), extra_context + def get_tag_queryset(self, obj): + """Returns the default :class:`QuerySet` of :class:`.Tag`\ s for the :class:`BlogView`'s :meth:`get_entries_by_tag` and :meth:`tag_archive_view`.""" + return obj.entry_tags - def get_entries_by_ymd(self, request, year=None, month=None, day=None, extra_context=None): - if not self.entry_archive_page: - raise Http404 - entries = self.get_entry_queryset() - if year: - entries = entries.filter(date__year=year) - if month: - entries = entries.filter(date__month=month) - if day: - entries = entries.filter(date__day=day) + def get_object(self, request, year=None, month=None, day=None, tag_slugs=None): + """Returns a dictionary representing the parameters for a feed which will be exposed.""" + if tag_slugs is None: + tags = None + else: + tag_slugs = tag_slugs.replace('+', '/').split('/') + tags = self.get_tag_queryset(self.blog).filter(slug__in=tag_slugs) + if not tags: + raise Http404 + + # Raise a 404 on an incorrect slug. + found_slugs = set([tag.slug for tag in tags]) + for slug in tag_slugs: + if slug and slug not in found_slugs: + raise Http404 - context = extra_context or {} - context.update({'year': year, 'month': month, 'day': day}) - return entries, context + try: + if year and month and day: + context_date = date(int(year), int(month), int(day)) + elif year and month: + context_date = date(int(year), int(month), 1) + elif year: + context_date = date(int(year), 1, 1) + else: + context_date = None + except TypeError, ValueError: + context_date = None + + return { + 'blog': self.blog, + 'tags': tags, + 'year': year, + 'month': month, + 'day': day, + 'date': context_date + } - def get_entries_by_tag(self, request, tag_slugs, extra_context=None): - tag_slugs = tag_slugs.replace('+', '/').split('/') - tags = self.get_tag_queryset().filter(slug__in=tag_slugs) + def get_entries(self, obj, request, year=None, month=None, day=None, tag_slugs=None, extra_context=None): + """Returns the :class:`BlogEntry` objects which will be exposed for the given object, as returned from :meth:`get_object`.""" + entries = self.get_entry_queryset(obj['blog']) - if not tags: - raise Http404 + if obj['tags'] is not None: + tags = obj['tags'] + for tag in tags: + entries = entries.filter(tags=tag) - # Raise a 404 on an incorrect slug. - found_slugs = [tag.slug for tag in tags] - for slug in tag_slugs: - if slug and slug not in found_slugs: - raise Http404 - - entries = self.get_entry_queryset() - for tag in tags: - entries = entries.filter(tags=tag) + if obj['date'] is not None: + if year: + entries = entries.filter(date__year=year) + if month: + entries = entries.filter(date__month=month) + if day: + entries = entries.filter(date__day=day) context = extra_context or {} - context.update({'tags': tags}) + context.update(obj) return entries, context def entry_view(self, request, slug, year=None, month=None, day=None, extra_context=None): - entries = self.get_entry_queryset() + """Renders :attr:`entry_page` with the entry specified by the given parameters.""" + entries = self.get_entry_queryset(self.blog) if year: entries = entries.filter(date__year=year) if month: @@ -496,39 +288,18 @@ class BlogView(FeedView): return self.entry_page.render_to_response(request, extra_context=context) def tag_archive_view(self, request, extra_context=None): + """Renders :attr:`tag_archive_page` with the result of :meth:`get_tag_queryset` added to the context.""" if not self.tag_archive_page: raise Http404 context = self.get_context() context.update(extra_context or {}) context.update({ - 'tags': self.get_tag_queryset() + 'tags': self.get_tag_queryset(self.blog) }) return self.tag_archive_page.render_to_response(request, extra_context=context) - def feed_view(self, get_items_attr, reverse_name): - get_items = callable(get_items_attr) and get_items_attr or getattr(self, get_items_attr) - - def inner(request, extra_context=None, *args, **kwargs): - obj = self.get_object(request, *args, **kwargs) - feed = self.get_feed(obj, request, reverse_name) - items, extra_context = get_items(request, extra_context=extra_context, *args, **kwargs) - self.populate_feed(feed, items, request) - - if 'tags' in extra_context: - tags = extra_context['tags'] - feed.feed['link'] = request.node.construct_url(self.reverse(obj=tags), with_domain=True, request=request, secure=request.is_secure()) - else: - tags = obj.entry_tags - - feed.feed['categories'] = [tag.name for tag in tags] - - response = HttpResponse(mimetype=feed.mime_type) - feed.write(response, 'utf-8') - return response - - return inner - def process_page_items(self, request, items): + """Overrides :meth:`.FeedView.process_page_items` to add pagination.""" if self.entries_per_page: page_num = request.GET.get('page', 1) paginator, paginated_page, items = paginate(items, self.entries_per_page, page_num) @@ -544,7 +315,25 @@ class BlogView(FeedView): return items, item_context def title(self, obj): - return obj.title + title = obj['blog'].title + if obj['tags']: + title += u" – %s" % u", ".join((tag.name for tag in obj['tags'])) + date = obj['date'] + if date: + if obj['day']: + datestr = date.strftime("%F %j, %Y") + elif obj['month']: + datestr = date.strftime("%F, %Y") + elif obj['year']: + datestr = date.strftime("%Y") + title += u" – %s" % datestr + return title + + def categories(self, obj): + tags = obj['tags'] + if tags: + return (tag.name for tag in tags) + return None def item_title(self, item): return item.title @@ -562,26 +351,47 @@ class BlogView(FeedView): return [tag.name for tag in item.tags.all()] -class Newsletter(Entity, Titled): - pass +class Newsletter(Entity): + """Represents a newsletter which will contain :class:`articles ` organized into :class:`issues `.""" + #: The name of the :class:`Newsletter`, currently callse 'title' for historical reasons. + title = models.CharField(max_length=255) + #: A slug used to identify the :class:`Newsletter`. + slug = models.SlugField(max_length=255) + + def __unicode__(self): + return self.title register_value_model(Newsletter) -class NewsletterArticle(Entity, Titled): +class NewsletterArticle(Entity): + """Represents an article in a :class:`Newsletter`""" + #: The title of the :class:`NewsletterArticle`. + title = models.CharField(max_length=255) + #: A slug which identifies the :class:`NewsletterArticle`. + slug = models.SlugField(max_length=255) + #: A :class:`ForeignKey` to :class:`Newsletter` representing the newsletter which this article was written for. newsletter = models.ForeignKey(Newsletter, related_name='articles') + #: A :class:`ManyToManyField` to the author(s) of the :class:`NewsletterArticle`. The model is either :setting:`PHILO_PERSON_MODULE` or :class:`auth.User`. authors = models.ManyToManyField(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='newsletterarticles') + #: The date and time which the :class:`NewsletterArticle` is considered published at. date = models.DateTimeField(default=None) + #: A :class:`.TemplateField` containing an optional short summary of the article, meant to grab a reader's attention and draw them in. lede = TemplateField(null=True, blank=True, verbose_name='Summary') + #: A :class:`.TemplateField` containing the full text of the article. full_text = TemplateField(db_index=True) - tags = models.ManyToManyField(Tag, related_name='newsletterarticles', blank=True, null=True) + #: A ``django-taggit`` :class:`TaggableManager`. + tags = TaggableManager() def save(self, *args, **kwargs): if self.date is None: self.date = datetime.now() super(NewsletterArticle, self).save(*args, **kwargs) + def __unicode__(self): + return self.title + class Meta: get_latest_by = 'date' ordering = ['-date'] @@ -591,11 +401,22 @@ class NewsletterArticle(Entity, Titled): register_value_model(NewsletterArticle) -class NewsletterIssue(Entity, Titled): +class NewsletterIssue(Entity): + """Represents an issue of the newsletter.""" + #: The title of the :class:`NewsletterIssue`. + title = models.CharField(max_length=255) + #: A slug which identifies the :class:`NewsletterIssue`. + slug = models.SlugField(max_length=255) + #: A :class:`ForeignKey` to the :class:`Newsletter` which this issue belongs to. newsletter = models.ForeignKey(Newsletter, related_name='issues') + #: The numbering of the issue - for example, 04.02 for volume 4, issue 2. This is an instance of :class:`CharField` to allow any arbitrary numbering system. numbering = models.CharField(max_length=50, help_text='For example, 04.02 for volume 4, issue 2.') + #: A :class:`ManyToManyField` to articles belonging to this issue. articles = models.ManyToManyField(NewsletterArticle, related_name='issues') + def __unicode__(self): + return self.title + class Meta: ordering = ['-numbering'] unique_together = (('newsletter', 'numbering'),) @@ -605,6 +426,7 @@ register_value_model(NewsletterIssue) class NewsletterView(FeedView): + """A subclass of :class:`.FeedView` which handles patterns and feeds for a :class:`Newsletter` and its related :class:`articles `.""" ARTICLE_PERMALINK_STYLE_CHOICES = ( ('D', 'Year, month, and day'), ('M', 'Year and month'), @@ -612,16 +434,30 @@ class NewsletterView(FeedView): ('S', 'Slug only') ) + #: A :class:`ForeignKey` to the :class:`Newsletter` managed by this :class:`NewsletterView`. newsletter = models.ForeignKey(Newsletter, related_name='newsletterviews') + #: A :class:`ForeignKey` to the :class:`Page` used to render the main page of this :class:`NewsletterView`. index_page = models.ForeignKey(Page, related_name='newsletter_index_related') + #: A :class:`ForeignKey` to the :class:`Page` used to render the detail view of a :class:`NewsletterArticle` for this :class:`NewsletterView`. article_page = models.ForeignKey(Page, related_name='newsletter_article_related') + #: A :class:`ForeignKey` to the :class:`Page` used to render the :class:`NewsletterArticle` archive pages for this :class:`NewsletterView`. article_archive_page = models.ForeignKey(Page, related_name='newsletter_article_archive_related', null=True, blank=True) + #: A :class:`ForeignKey` to the :class:`Page` used to render the detail view of a :class:`NewsletterIssue` for this :class:`NewsletterView`. issue_page = models.ForeignKey(Page, related_name='newsletter_issue_related') + #: A :class:`ForeignKey` to the :class:`Page` used to render the :class:`NewsletterIssue` archive pages for this :class:`NewsletterView`. issue_archive_page = models.ForeignKey(Page, related_name='newsletter_issue_archive_related', null=True, blank=True) + #: Depending on the needs of the site, different permalink styles may be appropriate. Example subpaths are provided for a :class:`NewsletterArticle` posted on May 2nd, 2011 with a slug of "hello". The choices are: + #: + #: * Year, month, and day - :attr:`article_permalink_base`\ ``/2011/05/02/hello`` + #: * Year and month - :attr:`article_permalink_base`\ ``/2011/05/hello`` + #: * Year - :attr:`article_permalink_base`\ ``/2011/hello`` + #: * Slug only - :attr:`article_permalink_base`\ ``/hello`` article_permalink_style = models.CharField(max_length=1, choices=ARTICLE_PERMALINK_STYLE_CHOICES) + #: This will be used as the base subpath for year/month/day article archive pages and article detail pages. Default: "articles" article_permalink_base = models.CharField(max_length=255, blank=False, default='articles') + #: This will be used as the base subpath for issue detail pages and the issue archive page. issue_permalink_base = models.CharField(max_length=255, blank=False, default='issues') item_context_var = 'articles' @@ -632,7 +468,7 @@ class NewsletterView(FeedView): def get_reverse_params(self, obj): if isinstance(obj, NewsletterArticle): - if obj.newsletter == self.newsletter: + if obj.newsletter_id == self.newsletter_id: kwargs = {'slug': obj.slug} if self.article_permalink_style in 'DMY': kwargs.update({'year': str(obj.date.year).zfill(4)}) @@ -642,7 +478,7 @@ class NewsletterView(FeedView): kwargs.update({'day': str(obj.date.day).zfill(2)}) return self.article_view, [], kwargs elif isinstance(obj, NewsletterIssue): - if obj.newsletter == self.newsletter: + if obj.newsletter_id == self.newsletter_id: return 'issue', [], {'numbering': obj.numbering} elif isinstance(obj, (date, datetime)): kwargs = { @@ -658,14 +494,12 @@ class NewsletterView(FeedView): urlpatterns = self.feed_patterns(r'^', 'get_all_articles', 'index_page', 'index') + patterns('', url(r'^%s/(?P.+)$' % self.issue_permalink_base, self.page_view('get_articles_by_issue', 'issue_page'), name='issue') ) - if self.issue_archive_page: + if self.issue_archive_page_id: urlpatterns += patterns('', url(r'^%s$' % self.issue_permalink_base, self.issue_archive_view, 'issue_archive') ) - if self.article_archive_page: - urlpatterns += patterns('', - url(r'^%s' % self.article_permalink_base, include(self.feed_patterns('get_all_articles', 'article_archive_page', 'articles'))) - ) + if self.article_archive_page_id: + urlpatterns += self.feed_patterns(r'^%s' % self.article_permalink_base, 'get_all_articles', 'article_archive_page', 'articles') if self.article_permalink_style in 'DMY': urlpatterns += self.feed_patterns(r'^%s/(?P\d{4})' % self.article_permalink_base, 'get_articles_by_ymd', 'article_archive_page', 'articles_by_year') if self.article_permalink_style in 'DM': @@ -695,34 +529,40 @@ class NewsletterView(FeedView): def get_context(self): return {'newsletter': self.newsletter} - def get_article_queryset(self): - return self.newsletter.articles.all() + def get_article_queryset(self, obj): + """Returns the default :class:`QuerySet` of :class:`NewsletterArticle` instances for the :class:`NewsletterView` - all articles that are considered posted in the past. This allows for scheduled posting of articles.""" + return obj.articles.filter(date__lte=datetime.now()) - def get_issue_queryset(self): - return self.newsletter.issues.all() + def get_issue_queryset(self, obj): + """Returns the default :class:`QuerySet` of :class:`NewsletterIssue` instances for the :class:`NewsletterView`.""" + return obj.issues.all() - def get_all_articles(self, request, extra_context=None): - return self.get_article_queryset(), extra_context + def get_all_articles(self, obj, request, extra_context=None): + """Used to generate :meth:`~.FeedView.feed_patterns` for all entries.""" + return self.get_article_queryset(obj), extra_context - def get_articles_by_ymd(self, request, year, month=None, day=None, extra_context=None): - articles = self.get_article_queryset().filter(date__year=year) + def get_articles_by_ymd(self, obj, request, year, month=None, day=None, extra_context=None): + """Used to generate :meth:`~.FeedView.feed_patterns` for a specific year, month, and day.""" + articles = self.get_article_queryset(obj).filter(date__year=year) if month: articles = articles.filter(date__month=month) if day: articles = articles.filter(date__day=day) return articles, extra_context - def get_articles_by_issue(self, request, numbering, extra_context=None): + def get_articles_by_issue(self, obj, request, numbering, extra_context=None): + """Used to generate :meth:`~.FeedView.feed_patterns` for articles from a certain issue.""" try: - issue = self.get_issue_queryset().get(numbering=numbering) + issue = self.get_issue_queryset(obj).get(numbering=numbering) except NewsletterIssue.DoesNotExist: raise Http404 context = extra_context or {} context.update({'issue': issue}) - return self.get_article_queryset().filter(issues=issue), context + return self.get_article_queryset(obj).filter(issues=issue), context def article_view(self, request, slug, year=None, month=None, day=None, extra_context=None): - articles = self.get_article_queryset() + """Renders :attr:`article_page` with the article specified by the given parameters.""" + articles = self.get_article_queryset(self.newsletter) if year: articles = articles.filter(date__year=year) if month: @@ -739,12 +579,13 @@ class NewsletterView(FeedView): return self.article_page.render_to_response(request, extra_context=context) def issue_archive_view(self, request, extra_context): + """Renders :attr:`issue_archive_page` with the result of :meth:`get_issue_queryset` added to the context.""" if not self.issue_archive_page: raise Http404 context = self.get_context() context.update(extra_context or {}) context.update({ - 'issues': self.get_issue_queryset() + 'issues': self.get_issue_queryset(self.newsletter) }) return self.issue_archive_page.render_to_response(request, extra_context=context)