migdal/models.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of PrawoKultury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 import re
   6 from datetime import datetime
   7 from django.conf import settings
   8 from django.contrib.sites.models import Site
   9 from django.core.exceptions import ValidationError
  10 from django.core.mail import mail_managers, send_mail
  11 from django.db import models
  12 from django.template import loader, Context
  13 from django.utils.translation import ugettext_lazy as _, ugettext
  14 from django_comments_xtd.models import XtdComment
  15 from markupfield.fields import MarkupField
  16 from fnpdjango.utils.models.translation import add_translatable, tQ
  17 from migdal import app_settings
  18 from migdal.fields import SlugNullField
  19
  20
  21 class Category(models.Model):
  22     taxonomy = models.CharField(_('taxonomy'), max_length=32, choices=app_settings.TAXONOMIES)
  23
  24     class Meta:
  25         verbose_name = _('category')
  26         verbose_name_plural = _('categories')
  27
  28     def __unicode__(self):
  29         return self.title or u""
  30
  31     @models.permalink
  32     def get_absolute_url(self):
  33         return 'migdal_category', [self.slug]
  34
  35
  36 add_translatable(Category, {
  37     'title': models.CharField(max_length=64, unique=True, db_index=True),
  38     'slug': models.SlugField(unique=True, db_index=True),
  39 })
  40
  41
  42 class PublishedEntryManager(models.Manager):
  43     def get_query_set(self):
  44         return super(PublishedEntryManager, self).get_query_set().filter(
  45                 tQ(published=True)
  46             )
  47
  48
  49 class Entry(models.Model):
  50     type = models.CharField(
  51         max_length=16,
  52         choices=((t.db, t.slug) for t in app_settings.TYPES),
  53         db_index=True)
  54     date = models.DateTimeField(_('created at'), auto_now_add=True, db_index=True)
  55     changed_at = models.DateTimeField(_('changed at'), auto_now=True, db_index=True)
  56     author = models.CharField(_('author'), max_length=128)
  57     author_email = models.EmailField(
  58         _('author email'), max_length=128, null=True, blank=True,
  59         help_text=_('Used only to display gravatar and send notifications.'))
  60     image = models.ImageField(_('image'), upload_to='entry/image/', null=True, blank=True)
  61     promo = models.BooleanField(_('promoted'), default=False)
  62     in_stream = models.BooleanField(_('in stream'), default=True)
  63     categories = models.ManyToManyField(Category, blank=True, verbose_name=_('categories'))
  64     first_published_at = models.DateTimeField(_('published at'), null=True, blank=True)
  65     canonical_url = models.URLField(_('canonical link'), null=True, blank=True)
  66
  67     objects = models.Manager()
  68     published_objects = PublishedEntryManager()
  69
  70     class Meta:
  71         verbose_name = _('entry')
  72         verbose_name_plural = _('entries')
  73         ordering = ['-date']
  74
  75     def __unicode__(self):
  76         return self.title
  77
  78     def save(self, *args, **kwargs):
  79         published_now = False
  80         for lc, ln in settings.LANGUAGES:
  81             if (getattr(self, "published_%s" % lc)
  82                     and getattr(self, "published_at_%s" % lc) is None):
  83                 now = datetime.now()
  84                 setattr(self, "published_at_%s" % lc, now)
  85                 if self.first_published_at is None:
  86                     self.first_published_at = now
  87                     published_now = True
  88         super(Entry, self).save(*args, **kwargs)
  89         if published_now and self.pk is not None:
  90             self.notify_author_published()
  91
  92     def clean(self):
  93         for lc, ln in settings.LANGUAGES:
  94             if (getattr(self, "published_%s" % lc) and
  95                     not getattr(self, "slug_%s" % lc)):
  96                 raise ValidationError(
  97                     ugettext("Published entry should have a slug in relevant language (%s).") % lc)
  98
  99     @models.permalink
 100     def get_absolute_url(self):
 101         return 'migdal_entry_%s' % self.type, [self.slug]
 102
 103     def get_type(self):
 104         return dict(app_settings.TYPES_DICT)[self.type]
 105
 106     def notify_author_published(self):
 107         if not self.author_email:
 108             return
 109         site = Site.objects.get_current()
 110         mail_text = loader.get_template('migdal/mail/published.txt').render(
 111             Context({
 112                 'entry': self,
 113                 'site': site,
 114             }))
 115         send_mail(
 116             ugettext(u'Your story has been published at %s.') % site.domain,
 117             mail_text, settings.SERVER_EMAIL, [self.author_email]
 118         )
 119
 120     def inline_html(self):
 121         for att in self.attachment_set.all():
 122             if att.file.name.endswith(".html"):
 123                 with open(att.file.path) as f:
 124                     yield f.read()
 125
 126
 127 add_translatable(Entry, languages=app_settings.OPTIONAL_LANGUAGES, fields={
 128     'needed': models.CharField(_('needed'), max_length=1, db_index=True, choices=(
 129                 ('n', _('Unneeded')), ('w', _('Needed')), ('y', _('Done'))),
 130                 default='n'),
 131 })
 132
 133 add_translatable(Entry, {
 134     'slug': SlugNullField(unique=True, db_index=True, null=True, blank=True),
 135     'title': models.CharField(_('title'), max_length=255, null=True, blank=True),
 136     'lead': MarkupField(
 137         _('lead'), markup_type='textile_pl', null=True, blank=True,
 138         help_text=_('Use <a href="http://textile.thresholdstate.com/">Textile</a> syntax.')),
 139     'body': MarkupField(
 140         _('body'), markup_type='textile_pl', null=True, blank=True,
 141         help_text=_('Use <a href="http://textile.thresholdstate.com/">Textile</a> syntax.')),
 142     'published': models.BooleanField(_('published'), default=False),
 143     'published_at': models.DateTimeField(_('published at'), null=True, blank=True),
 144 })
 145
 146
 147 class Attachment(models.Model):
 148     file = models.FileField(_('file'), upload_to='entry/attach/')
 149     entry = models.ForeignKey(Entry)
 150
 151     def url(self):
 152         return self.file.url if self.file else ''
 153
 154
 155 def notify_new_comment(sender, instance, created, **kwargs):
 156     if created and isinstance(instance.content_object, Entry) and instance.content_object.author_email:
 157         site = Site.objects.get_current()
 158         mail_text = loader.get_template('migdal/mail/new_comment.txt').render(
 159             Context({
 160                 'comment': instance,
 161                 'site': site,
 162             }))
 163         send_mail(
 164             ugettext(u'New comment under your story at %s.') % site.domain,
 165             mail_text, settings.SERVER_EMAIL,
 166             [instance.content_object.author_email]
 167         )
 168 models.signals.post_save.connect(notify_new_comment, sender=XtdComment)
 169
 170
 171 def spamfilter(sender, comment, **kwargs):
 172     """Very simple spam filter. Just don't let any HTML links go through."""
 173     if re.search(r"<a\s+href=", comment.comment):
 174         fields = (
 175             comment.user, comment.user_name, comment.user_email,
 176             comment.user_url, comment.submit_date, comment.ip_address,
 177             comment.followup, comment.comment)
 178         mail_managers(
 179             u"Spam filter report",
 180             (u"""This comment was turned down as SPAM: \n""" +
 181              """\n%s""" * len(fields) +
 182              """\n\nYou don't have to do anything.""") % fields)
 183         return False
 184     return True
 185 # comment_will_be_posted.connect(spamfilter)