Librarian in regular requirements.

[redakcja.git] / apps / cover / models.py

diff --git a/apps/cover/models.py b/apps/cover/models.py
index e69de29..d83dad3 100644 (file)
--- a/apps/cover/models.py
+++ b/apps/cover/models.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from django.core.files.base import ContentFile
+from django.core.files.storage import FileSystemStorage
+from django.db import models
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from django.utils.translation import ugettext_lazy as _
+from django.contrib.sites.models import Site
+from cover.utils import URLOpener
+
+
+class OverwriteStorage(FileSystemStorage):
+
+    def get_available_name(self, name, max_length=None):
+        self.delete(name)
+        return name
+
+
+class Image(models.Model):
+    title = models.CharField(max_length=255, verbose_name=_('title'))
+    author = models.CharField(max_length=255, verbose_name=_('author'))
+    license_name = models.CharField(max_length=255, verbose_name=_('license name'))
+    license_url = models.URLField(max_length=255, blank=True, verbose_name=_('license URL'))
+    source_url = models.URLField(verbose_name=_('source URL'), null=True, blank=True)
+    download_url = models.URLField(unique=True, verbose_name=_('image download URL'), null=True, blank=True)
+    file = models.ImageField(
+        upload_to='cover/image', storage=OverwriteStorage(), editable=True, verbose_name=_('file'))
+
+    class Meta:
+        verbose_name = _('cover image')
+        verbose_name_plural = _('cover images')
+
+    def __unicode__(self):
+        return u"%s - %s" % (self.author, self.title)
+
+    @models.permalink
+    def get_absolute_url(self):
+        return 'cover_image', [self.id]
+
+    def get_full_url(self):
+        return "http://%s%s" % (Site.objects.get_current().domain, self.get_absolute_url())
+
+
+@receiver(post_save, sender=Image)
+def download_image(sender, instance, **kwargs):
+    if instance.pk and not instance.file:
+        t = URLOpener().open(instance.download_url).read()
+        instance.file.save("%d.jpg" % instance.pk, ContentFile(t))