Port to new django version - not yet fully working

- location field makes problems

imagestore/models/bases/album.py

@@ -1,75 +0,0 @@
-#!/usr/bin/env python
-# vim:fileencoding=utf-8
-
-__author__ = 'zeus'
-
-
-from django.db import models
-from django.db.models import permalink
-from django.utils.translation import ugettext_lazy as _
-from django.conf import settings
-from sorl.thumbnail import get_thumbnail
-
-try:
-    from django.contrib.auth import get_user_model
-    User = get_user_model()
-except ImportError:
-    from django.contrib.auth.models import User
-
-try:
-    import Image as PILImage
-except ImportError:
-    from PIL import Image as PILImage
-
-from imagestore.utils import get_model_string
-
-
-SELF_MANAGE = getattr(settings, 'IMAGESTORE_SELF_MANAGE', True)
-
-
-class BaseAlbum(models.Model):
-    class Meta(object):
-        abstract = True
-        ordering = ('order', 'created', 'name')
-        permissions = (
-            ('moderate_albums', 'View, update and delete any album'),
-        )
-
-    user = models.ForeignKey(User, verbose_name=_('User'), null=True, blank=True, related_name='albums')
-    name = models.CharField(_('Name'), max_length=100, blank=False, null=False)
-    created = models.DateTimeField(_('Created'), auto_now_add=True)
-    updated = models.DateTimeField(_('Updated'), auto_now=True)
-    is_public = models.BooleanField(_('Is public'), default=True)
-    head = models.ForeignKey(get_model_string('Image'), related_name='head_of', null=True, blank=True, on_delete=models.SET_NULL)
-
-    order = models.IntegerField(_('Order'), default=0)
-
-    def get_head(self):
-        if self.head:
-            return self.head
-        else:
-            if self.images.all().count()>0:
-                self.head = self.images.all()[0]
-                self.save()
-                return self.head
-            else:
-                return None
-
-    @permalink
-    def get_absolute_url(self):
-        return 'imagestore:album', (), {'album_id': self.id}
-
-    def __unicode__(self):
-        return self.name
-
-    def admin_thumbnail(self):
-        img = self.get_head()
-        if img:
-            try:
-                return '<img src="%s">' % get_thumbnail(img.image, '100x100', crop='center').url
-            except IOError:
-                return 'IOError'
-        return _('Empty album')
-
-    admin_thumbnail.short_description = _('Head')
-    admin_thumbnail.allow_tags = True