.

longs/models.py

@@ -285,6 +285,27 @@ class LongSeries(models.Model):
             "<div>{}<br/>{}<br/>Images: {}</div>", examination, thumb, image_number
         )
 
+    def order_by_upload_filename(self):
+        images = self.images.all()
+
+        filenames = []
+        map = []
+
+        for i in images:
+            filenames.append((i, i.upload_filename))
+            map[i.upload_filename] = i
+
+        filenames = sorted(filenames)
+
+        n = 1
+        for f in filenames:
+            i = map[f]
+            i.position = n
+            i.save()
+            n = n + 1
+        
+
+
     def order_by_dicom_location(self):
         images = self.images.all()