1 # chloro - personal space
2 # Copyright (C) 2019 Frederic Peters
4 # This program is free software: you can redistribute it and/or modify it
5 # under the terms of the GNU Affero General Public License as published
6 # by the Free Software Foundation, either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU Affero General Public License for more details.
14 # You should have received a copy of the GNU Affero General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 from django.db import models, transaction
22 from django.utils.html import strip_tags
23 from django.utils.translation import ugettext_lazy as _
24 from taggit.managers import TaggableManager
26 from .fields import RichTextField
29 class Note(models.Model):
30 title = models.CharField(_('Title'), max_length=150)
31 slug = models.SlugField(_('Slug'), max_length=150)
32 text = RichTextField(_('Text'), blank=True, null=True)
33 plain_text = models.TextField(blank=True, null=True)
34 tags = TaggableManager(_('Tags'), blank=True)
35 published = models.BooleanField(_('Published'), default=True)
36 creation_timestamp = models.DateTimeField(auto_now_add=True)
37 last_update_timestamp = models.DateTimeField(auto_now=True)
40 ordering = ['-creation_timestamp']
42 def get_absolute_url(self):
43 if self.slug == 'index':
45 return '/%s/' % self.slug
48 if self.tags.filter(name='lang-en').exists():
52 def save(self, *args, **kwargs):
53 if kwargs.get('update_fields') is None or 'plain_text' in kwargs.get('update_fields'):
54 self.plain_text = re.sub(
55 r"[’'\"«»,;:\. ]", ' ', html.unescape(strip_tags(self.text)).replace('’', ' ')
57 if not kwargs.get('update_fields'):
58 self.maintain_interlinks()
59 return super().save(*args, **kwargs)
61 def maintain_interlinks(self):
62 links = re.findall(r'href="(.*?)"', self.text or '')
63 with transaction.atomic():
64 Interlink.objects.filter(note1=self).delete()
66 parsed = urllib.parse.urlparse(link)
67 if parsed.netloc != '':
69 path_parts = parsed.path.strip('/').split()
70 if len(path_parts) != 1:
73 note2 = Note.objects.get(slug=path_parts[0])
74 Interlink.objects.create(note1=self, note2=note2)
75 except Note.DoesNotExist:
79 class Interlink(models.Model):
80 note1 = models.ForeignKey(Note, on_delete=models.SET_NULL, null=True, related_name='+')
81 note2 = models.ForeignKey(Note, on_delete=models.SET_NULL, null=True, related_name='linking_note')