add duration and setup information to dataset

database.py

@@ -13,15 +13,17 @@ schema = dj.schema("fish_book_new", locals())
 
 
 @schema
-    definition = """ # Dataset
 class _Dataset(dj.Manual):
+    definition = """ # _Dataset
        dataset_id : varchar(256)
        ----
        data_source : varchar(512) # path to the dataset
-       experimenter : varchar(512) 
+       experimenter : varchar(512)
+       setup : varchar(128) 
        recording_date : date
        quality : varchar(512)
        comment : varchar(1024)
+       duration : float
        has_nix : bool
        """
 
@@ -30,8 +32,8 @@ class _Dataset(dj.Manual):
         if id is not None:
             d = dict((_Dataset() & {"dataset_id": id}).fetch1())
             return d
-        return dict(dataset_id=None, data_source="", experimenter="", recording_date=None,
-                    quality="", comment="", has_nix=False)
+        return dict(dataset_id=None, data_source="", experimenter="", setup="", recording_date=None,
+                    quality="", comment="", duration=0.0, has_nix=False)
 
     @staticmethod
     def get_nix_file(key):