Romans were missing

media/models.py

@@ -140,6 +140,72 @@ class Manga(models.Model):
         null=True,
     )
 
+    def __str__(self):
+        return self.title
+
+    class Meta:
+        verbose_name = _("manga")
+        verbose_name_plural = _("mangas")
+        ordering = ['title']
+
+
+class Roman(models.Model):
+    isbn = ISBNField(
+        _('ISBN'),
+        help_text=_('You may be able to scan it from a bar code.'),
+        unique=True,
+        blank=True,
+        null=True,
+    )
+
+    title = models.CharField(
+        verbose_name=_('title'),
+        max_length=255,
+    )
+
+    subtitle = models.CharField(
+        verbose_name=_('subtitle'),
+        max_length=255,
+        blank=True,
+        null=True,
+    )
+
+    external_url = models.URLField(
+        verbose_name=_('external URL'),
+        blank=True,
+        null=True,
+    )
+
+    side_identifier = models.CharField(
+        verbose_name=_('side identifier'),
+        max_length=255,
+    )
+
+    authors = models.ManyToManyField(
+        'Auteur',
+        verbose_name=_('authors'),
+    )
+
+    number_of_pages = models.PositiveIntegerField(
+        verbose_name=_('number of pages'),
+        blank=True,
+        null=True,
+    )
+
+    publish_date = models.DateField(
+        verbose_name=_('publish date'),
+        blank=True,
+        null=True,
+    )
+
+    def __str__(self):
+        return self.title
+
+    class Meta:
+        verbose_name = _("roman")
+        verbose_name_plural = _("romans")
+        ordering = ['title', 'subtitle']
+
 
 class Vinyle(models.Model):
     title = models.CharField(