Update librarian

[wolnelektury.git] / src / picture / models.py

diff --git a/src/picture/models.py b/src/picture/models.py
index a3c098c..416c846 100644 (file)
--- a/src/picture/models.py
+++ b/src/picture/models.py
@@ -1,21 +1,21 @@
-# -*- coding: utf-8 -*-
 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from django.db import models, transaction
 import catalogue.models
-from django.db.models import permalink
 from sorl.thumbnail import ImageField
 from django.conf import settings
 from django.contrib.contenttypes.fields import GenericRelation
 from django.core.files.storage import FileSystemStorage
+from django.urls import reverse
 from slugify import slugify
 from ssify import flush_ssi_includes
 
 from catalogue.models.tag import prefetched_relations
 from catalogue.utils import split_tags
 from picture import tasks
-from StringIO import StringIO
+from wolnelektury.utils import cached_render, clear_cached_renders
+from io import BytesIO
 import jsonfield
 import itertools
 import logging
@@ -34,7 +34,7 @@ picture_storage = FileSystemStorage(location=path.join(
 
 
 class PictureArea(models.Model):
-    picture = models.ForeignKey('picture.Picture', related_name='areas')
+    picture = models.ForeignKey('picture.Picture', models.CASCADE, related_name='areas')
     area = jsonfield.JSONField(_('area'), default={}, editable=False)
     kind = models.CharField(
         _('kind'), max_length=10, blank=False, null=False, db_index=True,
@@ -123,7 +123,7 @@ class Picture(models.Model):
 
         return ret
 
-    def __unicode__(self):
+    def __str__(self):
         return self.title
 
     def authors(self):
@@ -142,9 +142,8 @@ class Picture(models.Model):
     def tags_by_category(self):
         return split_tags(self.tags)
 
-    @permalink
     def get_absolute_url(self):
-        return 'picture_detail', [self.slug]
+        return reverse('picture_detail', args=[self.slug])
 
     def get_initial(self):
         try:
@@ -179,7 +178,7 @@ class Picture(models.Model):
         close_image_file = False
 
         if image_file is not None and not isinstance(image_file, File):
-            image_file = File(open(image_file))
+            image_file = File(open(image_file, 'rb'))
             close_image_file = True
 
         if not isinstance(xml_file, File):
@@ -197,7 +196,7 @@ class Picture(models.Model):
                 raise Picture.AlreadyExists('Picture %s already exists' % picture_xml.slug)
 
             picture.areas.all().delete()
-            picture.title = unicode(picture_xml.picture_info.title)
+            picture.title = str(picture_xml.picture_info.title)
             picture.extra_info = picture_xml.picture_info.to_dict()
 
             picture_tags = set(catalogue.models.Tag.tags_from_info(picture_xml.picture_info))
@@ -282,7 +281,7 @@ class Picture(models.Model):
 
             picture.width, picture.height = modified.size
 
-            modified_file = StringIO()
+            modified_file = BytesIO()
             modified.save(modified_file, format='JPEG', quality=95)
             # FIXME: hardcoded extension - detect from DC format or orginal filename
             picture.image_file.save(path.basename(picture_xml.image_path), File(modified_file))
@@ -344,11 +343,18 @@ class Picture(models.Model):
             names = [tag[0] for tag in names]
         return ', '.join(names)
 
+    @cached_render('picture/picture_mini_box.html')
+    def mini_box(self):
+        return {
+            'picture': self,
+        }
+
     def related_themes(self):
         return catalogue.models.Tag.objects.usage_for_queryset(
             self.areas.all(), counts=True).filter(category__in=('theme', 'thing'))
 
     def flush_includes(self, languages=True):
+        clear_cached_renders(self.mini_box)
         if not languages:
             return
         if languages is True:
@@ -372,6 +378,6 @@ class Picture(models.Model):
                 index.index_tags()
             if commit:
                 index.index.commit()
-        except Exception, e:
+        except Exception as e:
             index.index.rollback()
             raise e