Synnefo » snf-cloudcms

# Copyright 2012 GRNET S.A. All rights reserved.

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from datetime import datetime

from django.db import models

from django.conf import settings

from django.contrib.auth.models import User

from django.utils.translation import ugettext_lazy as _, ugettext, ungettext

from django.template.loader import render_to_string

from django.core import urlresolvers

from feincms import translations

from feincms.models import Base

from feincms.module.page.models import Page

from feincms.content.richtext.models import RichTextContent

from feincms.content.section.models import SectionContent

from feincms.content.application.models import reverse

from feincms.module.medialibrary.fields import MediaFileForeignKey

from feincms.module.medialibrary.models import MediaFile

from feincms.module.page.extensions.navigation import NavigationExtension

from feincms.module.page.extensions.navigation import PagePretender

from feincms.content.application.models import ApplicationContent

from cloudcms.cms_utils import get_app_page

# monkeypatch django reverse (feincms 1.5+ solves this issue)

urlresolvers.reverse = reverse

class Category(models.Model, translations.TranslatedObjectMixin):

    """

    Blog entry category. Each blog post may belong to multiple categories.

    """

    ordering = models.SmallIntegerField(_('ordering'), default=0)

    display_on_menu = models.BooleanField(default=False)

    class Meta:

        verbose_name = _('category')

        verbose_name_plural = _('categories')

        ordering = ['-ordering',]

    objects = translations.TranslatedObjectManager()

    def entries_count(self):

        return self.blogentries.count()

    def __unicode__(self):

        trans = translations.TranslatedObjectMixin.__unicode__(self)

        return trans or _('Unnamed category')

class CategoryTranslation(translations.Translation(Category)):

    """

    Category translation

    """

    title = models.CharField(_('category title'), max_length=100)

    slug = models.SlugField(_('slug'), unique=True)

    description = models.CharField(_('description'), max_length=250, blank=True)

    class Meta:

        verbose_name = _('category translation')

        verbose_name_plural = _('category translations')

        ordering = ['title']

    def __unicode__(self):

        return self.title

    def get_absolute_url(self):

        return reverse('cloudcmsblog_entries_archive', 'cloudcmsblog.urls', (), {

            'category': self.slug,

        })

    def save(self, *args, **kwargs):

        if not self.slug:

            self.slug = slugify(self.title)

        super(CategoryTranslation, self).save(*args, **kwargs)

class EntryManager(models.Manager):

    def active(self):

        return self.filter(is_active=True)

    def latest(self, limit=3):

        return self.filter()[:limit]

def get_blog_page():

    """

    Returns Page model that has been associated with blog application

    """

    return get_app_page(Page, "cloudcmsblog")

class Entry(Base):

    """

    Blog post entry

    """

    is_active = models.BooleanField(_('is active'), default=True)

    is_featured = models.BooleanField(_('is featured'), default=False)

    title = models.CharField(_('title'), max_length=100)

    slug = models.SlugField(_('slug'), max_length=100, unique_for_date='published_on')

    author = models.ForeignKey(User, related_name='blogentries', verbose_name=_('author'))

    language = models.CharField(max_length=255, choices=settings.LANGUAGES)

    intro_text = models.TextField(max_length=255,

            help_text="Displayed in list views", blank=True)

    image = MediaFileForeignKey(MediaFile, null=True, blank=True)

    application = models.ManyToManyField('cloudcms.Application',

            related_name="blogentries",

            verbose_name=_('application'))

    published_on = models.DateTimeField(_('published on'), blank=True, null=True, default=datetime.now,

        help_text=_('Will be filled in automatically when entry gets published.'))

    last_changed = models.DateTimeField(_('last change'), auto_now=True, editable=False)

    categories = models.ManyToManyField(Category, verbose_name=_('categories'),

        related_name='blogentries', null=True, blank=True)

    objects = EntryManager()

    class Meta:

        get_latest_by = 'published_on'

        ordering = ['-published_on']

        verbose_name = _('entry')

        verbose_name_plural = _('entries')

    def __unicode__(self):

        return self.title

    def get_absolute_url(self):

        try:

            r = reverse('cloudcmsblog_entry_detail', 'cloudcmsblog.urls', (),

                    {

                    'year': self.published_on.strftime('%Y'),

                    'month': self.published_on.strftime('%m'),

                    'day': self.published_on.strftime('%d'),

                    'slug': self.slug,

                    })

        except Exception,e:

            pass

        # ugly hack to fix proper application reverse url

        BLOG_URL = ""

        try:

            BLOG_URL = get_blog_page().get_navigation_url()

        except Exception, e:

            print e

        if r.startswith(BLOG_URL):

            return r

        else:

            return BLOG_URL + r.lstrip('/')

    def back_url(self):

        return get_blog_page().get_navigation_url()

# Feincms navigation extension

class BlogCategoriesNavigationExtension(NavigationExtension):

    """

    Navigation extension for FeinCMS which lists all categories that user

    wants to include in global site navigation.

    """

    name = _('blog categories')

    def children(self, page, **kwargs):

        for category in Category.objects.filter(display_on_menu=True):

            url='%scategory/%s/' % (page.get_absolute_url(), category.translation.slug)

            yield PagePretender(

                title=category.translation.title,

                tree_id=page.tree_id,

                url=url,

                lft=0,

                rght=0,

                level=page.level + 1, # blog categories are nested, assign correct level

                slug=category.translation.slug,

            )

# Feincms content abstract models

class LatestEntries(models.Model):

    title = models.CharField(max_length=255)

    limit = models.PositiveIntegerField(default=3)

    display_text = models.BooleanField(default=False)

    class Meta:

        abstract = True

        verbose_name = _('Latest blog entries')

        verbose_name_plural = _('Latest blog entries')

    def render(self, **kwargs):

        return render_to_string(['content/latest_blog.html'], {'posts':

            Entry.objects.latest(self.limit), 'content': self})