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