add _is_multi_objective attribute for optdash.study.Study

optdash/frontend/src/utils/fetch-data.tsx

@@ -1,6 +1,6 @@
 function fetch_data(base_uri: string, query_params: string | string[][], data_setter: (x: any) => void, key: string = "") {
     let qs = new URLSearchParams(query_params);
-    let uri = encodeURI(base_uri + "?" + qs.toString());
+    let uri = base_uri + "?" + qs.toString();
     console.log("Fetching " + uri);
     fetch(uri)
         .then(res => res.json())

optdash/server.py

@@ -81,7 +81,7 @@ def get_contents(self) -> Tuple[int, Dict[str, str], Optional[bytes]]:
                                 }
                                 for study in sorted(
                                     studies, key=lambda s: (
-                                        s.datetime_start if s.datetime_start is None else datetime.now()
+                                        s.datetime_start if s.datetime_start is not None else datetime.now()
                                     )
                                 )
                             ]

optdash/study.py

@@ -15,6 +15,7 @@ def __init__(self, study: optuna.Study) -> None:
         self.best_trial = study.best_trial
         self.best_params = study.best_params
         self.best_value = study.best_value
+        self._is_multi_objective = study._is_multi_objective
         self.trials = study.get_trials(deepcopy=False)
 
     def get_trials(self, deepcopy: bool = True) -> List[optuna.trial.FrozenTrial]: