Add ctype method for Content model

apps/content/models.py

@@ -40,7 +40,10 @@ class Content(PolymorphicModel):
     class Meta:
         verbose_name = 'Контент'
         verbose_name_plural = 'Контент'
-        ordering = ('-created_at',)
+        ordering = ('position', '-created_at',)
+
+    def ctype(self):
+        return self.__class__.__name__.lower()
 
 
 class Image(Content):
@@ -65,6 +68,9 @@ class ImageText(Content):
 class Video(Content):
     url = models.URLField('Ссылка')
 
+    def video_index(self):
+        return self.url.split('/')[-1]
+
 
 class Gallery(Content):
     pass