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