allow empy list

Author: last-partizan

example/tumblelog/tumblelog/models.py

@@ -24,7 +24,11 @@ class Post(Document):
     )
     title = fields.StringField(max_length=255)
     slug = fields.StringField(max_length=255, primary_key=True)
-    comments = fields.ListField(fields.EmbeddedDocumentField('Comment'), default=[])
+    comments = fields.ListField(
+        fields.EmbeddedDocumentField('Comment'),
+        default=[],
+        blank=True,
+    )
 
     def get_absolute_url(self):
         return reverse('post', kwargs={"slug": self.slug})