add some error message

app/controllers/DatasetController.scala

@@ -207,7 +207,7 @@ class DatasetController @Inject()(userService: UserService,
                                                    searchQuery,
                                                    recursive.getOrElse(false),
                                                    limit) ?~> "dataset.list.failed"
-          js <- listGrouped(datasets, request.identity) ?~> "dataset.list.failed"
+          js <- listGrouped(datasets, request.identity) ?~> "dataset.list.grouping.failed"
         } yield Json.toJson(js)
       }
       _ = Fox.runOptional(request.identity)(user => userDAO.updateLastActivity(user._id))
@@ -223,7 +223,7 @@ class DatasetController @Inject()(userService: UserService,
       groupedByOrga = datasets.groupBy(_._organization).toList
       js <- Fox.serialCombined(groupedByOrga) { byOrgaTuple: (String, List[Dataset]) =>
         for {
-          organization <- organizationDAO.findOne(byOrgaTuple._1)(GlobalAccessContext)
+          organization <- organizationDAO.findOne(byOrgaTuple._1)(GlobalAccessContext) ?~> "organization.notFound"
           groupedByDataStore = byOrgaTuple._2.groupBy(_._dataStore).toList
           result <- Fox.serialCombined(groupedByDataStore) { byDataStoreTuple: (String, List[Dataset]) =>
             for {

app/models/dataset/DataStore.scala

@@ -114,7 +114,7 @@ class DataStoreDAO @Inject()(sqlClient: SqlClient)(implicit ec: ExecutionContext
     for {
       accessQuery <- readAccessQuery
       r <- run(q"SELECT $columns FROM $existingCollectionName WHERE name = $name AND $accessQuery".as[DatastoresRow])
-      parsed <- parseFirst(r, name)
+      parsed <- parseFirst(r, name) ?~> "dataStore.notFound"
     } yield parsed
 
   def findOneByUrl(url: String)(implicit ctx: DBAccessContext): Fox[DataStore] =

app/models/dataset/DatasetService.scala

@@ -349,7 +349,7 @@ class DatasetService @Inject()(organizationDAO: OrganizationDAO,
         organizationDAO.findOne(dataset._organization) ?~> "organization.notFound"
       }
       dataStore <- Fox.fillOption(dataStore) {
-        dataStoreFor(dataset)
+        dataStoreFor(dataset) ?~> "dataStore.notFound"
       }
       teams <- teamService.allowedTeamsForDataset(dataset, cumulative = false, requestingUserOpt) ?~> "dataset.list.fetchAllowedTeamsFailed"
       teamsJs <- Fox.serialCombined(teams)(t => teamService.publicWrites(t, Some(organization))) ?~> "dataset.list.teamWritesFailed"

app/models/user/UserService.scala

@@ -279,11 +279,11 @@ class UserService @Inject()(conf: WkConf,
     userExperiencesDAO.findAllExperiencesForUser(_user)
 
   def teamMembershipsFor(_user: ObjectId): Fox[List[TeamMembership]] =
-    userDAO.findTeamMembershipsForUser(_user)
+    userDAO.findTeamMembershipsForUser(_user) ?~> "user.team.memberships.failed"
 
   def teamManagerMembershipsFor(_user: ObjectId): Fox[List[TeamMembership]] =
     for {
-      teamMemberships <- teamMembershipsFor(_user)
+      teamMemberships <- teamMembershipsFor(_user) ?~> "user.team.memberships.failed"
     } yield teamMemberships.filter(_.isTeamManager)
 
   def teamManagerTeamIdsFor(_user: ObjectId): Fox[List[ObjectId]] =

conf/messages

@@ -68,6 +68,7 @@ user.notAuthorised=You are not authorized to view this resource. Please log in.
 user.id.notFound=We could not find a user id in the request.
 user.id.invalid=The provided user id is invalid.
 user.creation.failed=Failed to create user
+user.team.memberships.failed=Failed to retrieve team memberships for user
 
 oidc.disabled=OIDC is disabled
 oidc.configuration.invalid=OIDC configuration is invalid
@@ -88,7 +89,8 @@ dataset.name.alreadyTaken=This name is already being used by a different dataset
 dataset.source.usableButNoScale=Dataset {0} is marked as active but has no scale.
 dataset.import.fileAccessDenied=Cannot create organization folder. Please make sure WEBKNOSSOS has write permissions in the “binaryData” directory
 dataset.type.invalid=External data set of type “{0}” is not supported
-dataset.list.failed=Failed to retrieve list of data sets.
+dataset.list.failed=Failed to retrieve list of datasets.
+dataset.list.grouping.failed=Failed group retrieved datasets.
 dataset.list.writesFailed=Failed to write json for dataset {0}
 dataset.noMags=Data layer does not contain mags
 dataset.sampledOnlyBlack=Sampled data positions contained only black data