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 fnpdjango.utils.fields import TextileField
  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_queryset(self):
  44         return super(PublishedEntryManager, self).get_queryset().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 TEXTILE_HELP = _('Use <a href="https://txstyle.org/article/44/an-overview-of-the-textile-syntax">Textile</a> syntax.')
 134
 135 add_translatable(Entry, {
 136     'slug': SlugNullField(unique=True, db_index=True, null=True, blank=True),
 137     'title': models.CharField(_('title'), max_length=255, null=True, blank=True),
 138     'lead': TextileField(
 139         _('lead'), markup_type='textile_pl', null=True, blank=True, help_text=TEXTILE_HELP),
 140     'body': TextileField(
 141         _('body'), markup_type='textile_pl', null=True, blank=True, help_text=TEXTILE_HELP),
 142     'place': models.CharField(_('place'), null=True, blank=True, max_length=256),
 143     'time': models.CharField(_('time'), null=True, blank=True, max_length=256),
 144     'published': models.BooleanField(_('published'), default=False),
 145     'published_at': models.DateTimeField(_('published at'), null=True, blank=True),
 146 })
 147
 148
 149 class Attachment(models.Model):
 150     file = models.FileField(_('file'), upload_to='entry/attach/')
 151     entry = models.ForeignKey(Entry)
 152
 153     def url(self):
 154         return self.file.url if self.file else ''
 155
 156
 157 class Photo(models.Model):
 158     image = models.ImageField(_('image'), upload_to='entry/photo/')
 159     entry = models.ForeignKey(Entry)
 160
 161     def url(self):
 162         return self.image.url if self.image else ''
 163
 164
 165 def notify_new_comment(sender, instance, created, **kwargs):
 166     if created and isinstance(instance.content_object, Entry) and instance.content_object.author_email:
 167         site = Site.objects.get_current()
 168         mail_text = loader.get_template('migdal/mail/new_comment.txt').render(
 169             Context({
 170                 'comment': instance,
 171                 'site': site,
 172             }))
 173         send_mail(
 174             ugettext(u'New comment under your story at %s.') % site.domain,
 175             mail_text, settings.SERVER_EMAIL,
 176             [instance.content_object.author_email]
 177         )
 178 models.signals.post_save.connect(notify_new_comment, sender=XtdComment)
 179
 180
 181 def spamfilter(sender, comment, **kwargs):
 182     """Very simple spam filter. Just don't let any HTML links go through."""
 183     if re.search(r"<a\s+href=", comment.comment):
 184         fields = (
 185             comment.user, comment.user_name, comment.user_email,
 186             comment.user_url, comment.submit_date, comment.ip_address,
 187             comment.followup, comment.comment)
 188         mail_managers(
 189             u"Spam filter report",
 190             (u"""This comment was turned down as SPAM: \n""" +
 191              """\n%s""" * len(fields) +
 192              """\n\nYou don't have to do anything.""") % fields)
 193         return False
 194     return True
 195 # comment_will_be_posted.connect(spamfilter)