cms_plugin

class BlogListWithPaginationPlugin(CMSPluginBase):
    model = BlogListWithPagination
    module = ps.module
    render_template = path.join(ps.templatePath, 'article_list.html')
    name = _(u'Blog Liste')

    def render(self, context, instance, placeholder):
        context['instance'] = instance
        context['placeholder'] = placeholder
        parameter = context['request'].GET.get('pagination', None)
        objects = None
        if parameter is None:
            objects = ArticleIntro.objects.all().exclude(isPublic=False).order_by('date')[:instance.amount]
        else:
            queryset = ArticleIntro.objects.all().exclude(isPublic=False).order_by('date')
            for index, item in enumerate(queryset):
                if item.pk == parameter:
                    # found item
                    objects = queryset[index+1:index+1+instance.amount]
                    break
        context.update({
            'articles': objects
        })

        return context

model

class ArticleIntro(CMSPlugin):
    title = models.CharField(max_length=256, verbose_name=u'Titel')
    author = models.ManyToManyField(User, verbose_name=u'Autor', limit_choices_to={'is_active': True, 'is_staff': True})
    date = models.DateField(verbose_name=u'Datum', default=datetime.datetime.now())
    lead = HTMLField(verbose_name=u'Lead')
    tags = models.ManyToManyField(ArticleTags, verbose_name=u'Schlagworte')
    picBig = models.ImageField(upload_to=CMSPlugin.get_media_path, verbose_name=u'unteres Bild', blank=True, null=True)
    picTop = models.ImageField(upload_to=CMSPlugin.get_media_path, verbose_name=u'Bild oben, im Kasten', blank=True, null=True)
    isPublic = models.BooleanField(editable=False, default=False)

    class Meta:
        verbose_name = u'Article'

    def __unicode__(self):
        return unicode(self.isPublic) + " " + unicode(self.date) + " " + Truncator(strip_tags(self.lead)).words(5, truncate='...')

    def copy_relations(self, old_instance):
        self.author = old_instance.author.all()
        self.tags = old_instance.tags.all()
        self.isPublic = True
        self.save()