PyPI 官网下载 | cmsplugin-ink-news-0.9.1.tar.gz

from django.utils import timezone from django.db.models import * from django.db.models.query import QuerySet from django.utils.translation import ugettext_lazy as _ from django.core.urlresolvers import reverse from django.contrib.auth.models import User from cms.utils.permissions import get_current_user as get_user from cms.models import CMSPlugin from . import settings import sys import inspect class LanguageNotSet(Exception): pass class LanguageQuerySet(QuerySet): def select_language(self, lang): self.language = lang return self def _clone(self, *args, **kwargs): qs = super(LanguageQuerySet, self)._clone(*args, **kwargs) if hasattr(qs, 'select_language'): qs.select_language(self.language) return qs def iterator(self): if not hasattr(self, 'language'): raise LanguageNotSet("Can't iterate over news before the language is selected (%s)." % id(self)) for result in super(LanguageQuerySet, self).iterator(): yield result.select_language(self.language) class PublishedManager(Manager): """This manager allows filtering of published vs not-published as well as language selection at display time.""" def select_language(self, lang): self.language = lang return self def get_queryset(self): if not hasattr(self, 'language'): raise LanguageNotSet("Can't do a language dependant query before the language is selected.") return LanguageQuerySet(self.model, using=self._db).select_language(self.language)\ .filter(is_published=True, pub_date__lte=timezone.now(), translation_of__isnull=True) class News(Model): title = CharField(_('Title'), max_length=255) slug = SlugField(_('Slug'), unique_for_date='pub_date', blank=True, null=True, help_text=_('A slug is a short name which uniquely identifies the news item.')) excerpt = TextField(_('Excerpt'), blank=True) content = TextField(_('Content'), blank=True) is_published = BooleanField(_('Published'), default=False) pub_date = DateTimeField(_('Publication date'), default=timezone.now) created = DateTimeField(auto_now_add=True, editable=False) updated = DateTimeField(auto_now=True, editable=False) creator = ForeignKey(User, related_name="created_news", default=get_user) editor = ForeignKey(User, blank=True, null=True, related_name="edited_news") link = URLField(_('Link'), blank=True, null=True, help_text=_('This link will be used a absolute url for this item and replaces' ' the view logic. <br />Note that by default this only applies for' ' items with an empty "content" field.')) # The translation functionality could be brought into a more generic format # By making a meta class which doesn't have it's own table but contains these two fields # and specifying 1. a list of translated fields which __getattr always passes UP to the # translated version and 2. a list of base fields which __getattr always passes DOWN to the root. # All mechanisms to do with translations would then be brought into that generic class. language = CharField(_("Language"), max_length=5, choices=settings.OTHER_LANGS, help_text=_("Translated version of another news item.")) translation_of = ForeignKey("self", blank=True, null=True, related_name="translations") # django uses the first object manager for reverse lookups. Make sure normal manager is first. objects = Manager() published = PublishedManager() class Meta: verbose_name = _('News') verbose_name_plural = _('News') ordering = ('-pub_date', ) permissions = ( ('translate', _('Translate News')), ) @property def lang(self): return self.language or 'en' def __unicode__(self): return self.title def select_language(self, lang): self._lang = lang.split('-')[0] self.trans = self.get_translation(lang) or self return self def __getattribute__(self, name): obj = self if hasattr(self, 'trans') and name in ['translated','title','excerpt','language','content']: obj = self.trans elif name == 'translated': name = 'updated' return Model.__getattribute__(obj, name) def get_translations(self): if self.translation_of: return self.translation_of.get_translations() return self.translations.all() def get_translation(self, lang): for item in self.get_translations(): if item.language == lang: return item return None def needs_translation(self): return not self.is_original() and (self.trans == self or self.trans.updated < self.updated) def is_original(self): return not hasattr(self, '_lang') or self._lang == settings.DEFAULT_LANG def get_absolute_url(self): if settings.LINK_AS_ABSOLUTE_URL and self.link: if settings.USE_LINK_ON_EMPTY_CONTENT_ONLY and not self.content: return self.link if self.is_published and self.slug: return reverse('news_detail', kwargs={ 'year' : self.pub_date.strftime("%Y"), 'month' : self.pub_date.strftime("%m"), 'day' : self.pub_date.strftime("%d"), 'slug' : self.slug}) return reverse('news_item', kwargs={ 'news_id': self.id }) class LatestNewsPlugin(CMSPlugin): """ Model for the settings when using the latest news cms plugin """ limit = PositiveIntegerField(_('Number of news items to show'), help_text=_('Limits the number of items that will be displayed'))