added set_data to lib

stand/adb.py

@@ -41,6 +41,11 @@ class ArcticLibrary:
         return df
 
 
+    def set_data(self, symbol, df):
+        df.index = df.index.view("datetime64[ns]") # adb supports update only for timeseries indexes
+        self.lib.update(symbol, df)
+
+
     def has_index(self, symbol, index):
         index = encode_index(index)
 

stand/table.py

@@ -85,11 +85,11 @@ def update_adb(evt):
     col_id = evt.args["colId"]
     new_val = evt.args["newValue"]
 
-    index = pd.Timestamp(int(row_id)) # adb supports update only for timeseries indexes
+    index = int(row_id)
     lib = adb.get(beamline)
-    df = lib.read(pgroup, date_range=[index]).data
+    df = lib.get_data(pgroup, index)
     df.at[index, col_id] = new_val
-    lib.update(pgroup, df)
+    lib.set_data(pgroup, df)
 
 
 def update_grids(evt):