Add dialog to create multi-objective study

optuna_dashboard/app.py

@@ -130,8 +130,12 @@ def create_app(storage_or_url: Union[str, BaseStorage]) -> Bottle:
         response.content_type = "application/json"
 
         study_name = request.json.get("study_name", None)
-        direction = request.json.get("direction", None)
-        if study_name is None or direction not in ("minimize", "maximize"):
+        directions = request.json.get("directions", [])
+        if (
+            study_name is None
+            or len(directions) == 0
+            or not all([d in ("minimize", "maximize") for d in directions])
+        ):
             response.status = 400  # Bad request
             return {"reason": "You need to set study_name and direction"}
 
@@ -141,11 +145,15 @@ def create_app(storage_or_url: Union[str, BaseStorage]) -> Bottle:
             response.status = 400  # Bad request
             return {"reason": f"'{study_name}' is already exists"}
 
-        # TODO(c-bata): Support multi-objective study.
-        if direction.lower() == "maximize":
-            storage.set_study_directions(study_id, [StudyDirection.MAXIMIZE])
-        else:
-            storage.set_study_directions(study_id, [StudyDirection.MINIMIZE])
+        storage.set_study_directions(
+            study_id,
+            [
+                StudyDirection.MAXIMIZE
+                if d.lower() == "maximize"
+                else StudyDirection.MINIMIZE
+                for d in directions
+            ],
+        )
 
         summary = get_study_summary(storage, study_id)
         if summary is None:

optuna_dashboard/static/action.ts

@@ -49,8 +49,8 @@ export const actionCreator = () => {
       })
   }
 
-  const createNewStudy = (studyName: string, direction: StudyDirection) => {
-    createNewStudyAPI(studyName, direction)
+  const createNewStudy = (studyName: string, directions: StudyDirection[]) => {
+    createNewStudyAPI(studyName, directions)
       .then((study_summary) => {
         const newVal = [...studySummaries, study_summary]
         setStudySummaries(newVal)

optuna_dashboard/static/apiClient.ts

@@ -138,12 +138,12 @@ interface CreateNewStudyResponse {
 
 export const createNewStudyAPI = (
   studyName: string,
-  direction: StudyDirection
+  directions: StudyDirection[]
 ): Promise<StudySummary> => {
   return axiosInstance
     .post<CreateNewStudyResponse>(`/api/studies`, {
       study_name: studyName,
-      direction,
+      directions,
     })
     .then((res) => {
       const study_summary = res.data.study_summary

optuna_dashboard/static/components/StudyList.tsx

@@ -20,8 +20,13 @@ import {
   DialogActions,
   FormControlLabel,
   Checkbox,
+  Menu,
+  MenuItem,
+  FormControl,
+  FormLabel,
+  Select,
 } from "@material-ui/core"
-import { AddBox, Delete, Refresh } from "@material-ui/icons"
+import { Add, AddBox, Delete, Refresh, Remove } from "@material-ui/icons"
 
 import { actionCreator } from "../action"
 import { DataGrid, DataGridColumn } from "./DataGrid"
@@ -35,18 +40,38 @@ const useStyles = makeStyles((theme: Theme) =>
     grow: {
       flexGrow: 1,
     },
+    objectiveButton: {
+      marginRight: theme.spacing(1),
+    },
   })
 )
 
 export const StudyList: FC<{}> = () => {
   const classes = useStyles()
-  const [openNewStudyDialog, setOpenNewStudyDialog] = React.useState(false)
+
+  const [
+    newStudySelectionAnchorEl,
+    setNewStudySelectionAnchorEl,
+  ] = React.useState<null | HTMLElement>(null)
+  const openNewStudySelection = Boolean(newStudySelectionAnchorEl)
+  const [
+    openNewSingleObjectiveStudyDialog,
+    setOpenNewSingleObjectiveStudyDialog,
+  ] = React.useState(false)
+  const [
+    openNewMultiObjectiveStudyDialog,
+    setOpenNewMultiObjectiveStudyDialog,
+  ] = React.useState(false)
   const [openDeleteStudyDialog, setOpenDeleteStudyDialog] = React.useState(
     false
   )
   const [deleteStudyID, setDeleteStudyID] = React.useState(-1)
   const [newStudyName, setNewStudyName] = React.useState("")
-  const [maximize, setMaximize] = React.useState<boolean>(false)
+
+  const [maximize, setMaximize] = React.useState(false)
+  const [directions, setDirections] = React.useState<StudyDirection[]>([
+    "minimize",
+  ])
 
   const action = actionCreator()
   const studies = useRecoilValue<StudySummary[]>(studySummariesState)
@@ -118,18 +143,31 @@ export const StudyList: FC<{}> = () => {
     { field: "value", label: "Value", sortable: true },
   ]
 
-  const handleCloseNewStudyDialog = () => {
+  const handleCloseNewSingleObjectiveStudyDialog = () => {
     setNewStudyName("")
-    setOpenNewStudyDialog(false)
+    setOpenNewSingleObjectiveStudyDialog(false)
   }
 
-  const handleCreateNewStudy = () => {
+  const handleCreateNewSingleObjectiveStudy = () => {
     const direction = maximize ? "maximize" : "minimize"
-    action.createNewStudy(newStudyName, direction)
-    setOpenNewStudyDialog(false)
+    action.createNewStudy(newStudyName, [direction])
+    setOpenNewSingleObjectiveStudyDialog(false)
     setNewStudyName("")
   }
 
+  const handleCloseNewMultiObjectiveStudyDialog = () => {
+    setOpenNewMultiObjectiveStudyDialog(false)
+    setNewStudyName("")
+    setDirections(["minimize"])
+  }
+
+  const handleCreateNewMultiObjectiveStudy = () => {
+    action.createNewStudy(newStudyName, directions)
+    setOpenNewMultiObjectiveStudyDialog(false)
+    setNewStudyName("")
+    setDirections(["minimize"])
+  }
+
   const handleCloseDeleteStudyDialog = () => {
     setOpenDeleteStudyDialog(false)
     setDeleteStudyID(-1)
@@ -199,12 +237,46 @@ export const StudyList: FC<{}> = () => {
               aria-controls="menu-appbar"
               aria-haspopup="true"
               onClick={(e) => {
-                setOpenNewStudyDialog(true)
+                setNewStudySelectionAnchorEl(e.currentTarget)
               }}
               color="inherit"
             >
               <AddBox />
             </IconButton>
+            <Menu
+              id="menu-appbar"
+              anchorEl={newStudySelectionAnchorEl}
+              anchorOrigin={{
+                vertical: "top",
+                horizontal: "right",
+              }}
+              keepMounted
+              transformOrigin={{
+                vertical: "top",
+                horizontal: "right",
+              }}
+              open={openNewStudySelection}
+              onClose={(e) => {
+                setNewStudySelectionAnchorEl(null)
+              }}
+            >
+              <MenuItem
+                onClick={(e) => {
+                  setNewStudySelectionAnchorEl(null)
+                  setOpenNewSingleObjectiveStudyDialog(true)
+                }}
+              >
+                Single-objective
+              </MenuItem>
+              <MenuItem
+                onClick={(e) => {
+                  setNewStudySelectionAnchorEl(null)
+                  setOpenNewMultiObjectiveStudyDialog(true)
+                }}
+              >
+                Multi-objective
+              </MenuItem>
+            </Menu>
           </Toolbar>
         </Container>
       </AppBar>
@@ -221,13 +293,15 @@ export const StudyList: FC<{}> = () => {
         </Card>
       </Container>
       <Dialog
-        open={openNewStudyDialog}
+        open={openNewSingleObjectiveStudyDialog}
         onClose={(e) => {
-          handleCloseNewStudyDialog()
+          handleCloseNewSingleObjectiveStudyDialog()
         }}
-        aria-labelledby="create-study-form-dialog-title"
+        aria-labelledby="create-single-objective-study-form-dialog-title"
       >
-        <DialogTitle id="create-study-form-dialog-title">New study</DialogTitle>
+        <DialogTitle id="create-single-objective-study-form-dialog-title">
+          New single-objective study
+        </DialogTitle>
         <DialogContent>
           <DialogContentText>
             To create a new study, please enter the study name here.
@@ -259,11 +333,14 @@ export const StudyList: FC<{}> = () => {
           />
         </DialogContent>
         <DialogActions>
-          <Button onClick={handleCloseNewStudyDialog} color="primary">
+          <Button
+            onClick={handleCloseNewSingleObjectiveStudyDialog}
+            color="primary"
+          >
             Cancel
           </Button>
           <Button
-            onClick={handleCreateNewStudy}
+            onClick={handleCreateNewSingleObjectiveStudy}
             color="primary"
             disabled={newStudyName === "" || newStudyNameAlreadyUsed}
           >
@@ -271,6 +348,99 @@ export const StudyList: FC<{}> = () => {
           </Button>
         </DialogActions>
       </Dialog>
+      <Dialog
+        open={openNewMultiObjectiveStudyDialog}
+        onClose={(e) => {
+          handleCloseNewMultiObjectiveStudyDialog()
+        }}
+        aria-labelledby="create-multi-objective-study-form-dialog-title"
+      >
+        <DialogTitle id="create-multi-objective-study-form-dialog-title">
+          New multi-objective study
+        </DialogTitle>
+        <DialogContent>
+          <DialogContentText>
+            To create a new study, please enter the study name and directions
+            here.
+          </DialogContentText>
+          <TextField
+            autoFocus
+            error={newStudyNameAlreadyUsed}
+            helperText={
+              newStudyNameAlreadyUsed ? `"${newStudyName}" is already used` : ""
+            }
+            label="Study name"
+            type="text"
+            onChange={(e) => {
+              setNewStudyName(e.target.value)
+            }}
+            fullWidth
+          />
+        </DialogContent>
+        {directions.map((d, i) => (
+          <DialogContent key={i}>
+            <FormControl component="fieldset" fullWidth={true}>
+              <FormLabel component="legend">Objective {i}:</FormLabel>
+              <Select
+                value={directions[i]}
+                onChange={(e) => {
+                  let newVal: StudyDirection[] = [...directions]
+                  newVal[i] = e.target.value as StudyDirection
+                  setDirections(newVal)
+                }}
+              >
+                <MenuItem value="minimize">Minimize</MenuItem>
+                <MenuItem value="maximize">Maximize</MenuItem>
+              </Select>
+            </FormControl>
+          </DialogContent>
+        ))}
+        <DialogContent>
+          <Button
+            variant="outlined"
+            startIcon={<Add />}
+            className={classes.objectiveButton}
+            onClick={(e) => {
+              const newVal: StudyDirection[] = [...directions, "minimize"]
+              setDirections(newVal)
+            }}
+          >
+            Add
+          </Button>
+          <Button
+            variant="outlined"
+            startIcon={<Remove />}
+            className={classes.objectiveButton}
+            disabled={directions.length <= 1}
+            onClick={(e) => {
+              let newVal: StudyDirection[] = [...directions]
+              newVal.pop()
+              setDirections(newVal)
+            }}
+          >
+            Remove
+          </Button>
+        </DialogContent>
+        <DialogActions>
+          <Button
+            onClick={handleCloseNewMultiObjectiveStudyDialog}
+            color="primary"
+          >
+            Cancel
+          </Button>
+          <Button
+            onClick={handleCreateNewMultiObjectiveStudy}
+            color="primary"
+            disabled={
+              newStudyName === "" ||
+              newStudyNameAlreadyUsed ||
+              directions.length === 0
+            }
+          >
+            Create
+          </Button>
+        </DialogActions>
+      </Dialog>
       <Dialog
         open={openDeleteStudyDialog}
         onClose={(e) => {