Use timespec=seconds for creation time

joeynmt_server/models/base.py

@@ -38,6 +38,6 @@ class BaseModel(db.Model):
         d = {}
         for key, val in self.sorted_attributes():
             if isinstance(val, dt.datetime):
-                val = val.isoformat()
+                val = val.isoformat(timespec='seconds')
             d[key] = val
         return d

joeynmt_server/views/feedback.py

@@ -107,7 +107,7 @@ def query_feedback():
         model = parse.model if parse else None
         model_lin = parse.lin if parse else None
         joined = {
-            'id': piece.id, 'created': piece.created.isoformat(),
+            'id': piece.id, 'created': piece.created.isoformat(timespec='seconds'),
             'nl': piece.nl, 'correct_lin': piece.correct_lin,
             'original_model': piece.model, 'original_lin': piece.system_lin,
             'parent_id': piece.parent_id,