X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/a2e0b275015cd104c63296a174e2c219251d1e21..67552e19bc548b78c18967e97f0c0328074a3576:/src/catalogue/models/bookmedia.py

diff --git a/src/catalogue/models/bookmedia.py b/src/catalogue/models/bookmedia.py
index 67d02790c..6b650806c 100644
--- a/src/catalogue/models/bookmedia.py
+++ b/src/catalogue/models/bookmedia.py
@@ -30,7 +30,7 @@ class BookMedia(models.Model):
 
     type = models.CharField(_('type'), db_index=True, choices=format_choices, max_length=20)
     name = models.CharField(_('name'), max_length=512)
-    part_name = models.CharField(_('part name'), default='', max_length=512)
+    part_name = models.CharField(_('part name'), default='', blank=True, max_length=512)
     index = models.IntegerField(_('index'), default=0)
     file = models.FileField(_('file'), max_length=600, upload_to=_file_upload_to, storage=OverwriteStorage())
     uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False, db_index=True)
@@ -47,10 +47,11 @@ class BookMedia(models.Model):
         verbose_name_plural = _('book media')
         app_label = 'catalogue'
 
-    def save(self, *args, **kwargs):
+    def save(self, parts_count=None, *args, **kwargs):
         from catalogue.utils import ExistingFile, remove_zip
 
-        parts_count = 1 + BookMedia.objects.filter(book=self.book, type=self.type).exclude(pk=self.pk).count()
+        if not parts_count:
+            parts_count = 1 + BookMedia.objects.filter(book=self.book, type=self.type).exclude(pk=self.pk).count()
         if parts_count == 1:
             self.name = self.book.pretty_title()
         else: