create or find dataset when create/update repo

models/dataset.go

@@ -93,6 +93,22 @@ func CreateDataset(dataset *Dataset) (err error) {
 	return nil
 }
 
+func CreateDefaultDatasetToRepo(repo *Repository) (err error) {
+	dataset := &Dataset{RepoID: repo.ID}
+	has, err := x.Get(dataset)
+	if err != nil {
+		return err
+	}
+	if !has {
+		dataset.Status = DatasetStatusPrivate
+		dataset.Title = repo.Name
+		if err = CreateDataset(dataset); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 func SearchDataset(opts *SearchDatasetOptions) (DatasetList, int64, error) {
 	cond := SearchDatasetCondition(opts)
 	return SearchDatasetByCondition(opts, cond)

models/repo.go

@@ -1138,6 +1138,10 @@ func CreateRepository(ctx DBContext, doer, u *User, repo *Repository) (err error
 		return fmt.Errorf("copyDefaultWebhooksToRepo: %v", err)
 	}
 
+	if err = CreateDefaultDatasetToRepo(repo); err != nil {
+		return fmt.Errorf("models.CreateDefaultDatasetToRepo: %v", err)
+	}
+
 	return nil
 }
 
@@ -1578,6 +1582,7 @@ func DeleteRepository(doer *User, uid, repoID int64) error {
 		&LanguageStat{RepoID: repoID},
 		&Comment{RefRepoID: repoID},
 		&Task{RepoID: repoID},
+		&Dataset{RepoID: repoID},
 	); err != nil {
 		return fmt.Errorf("deleteBeans: %v", err)
 	}

routers/repo/setting.go

@@ -210,6 +210,10 @@ func SettingsPost(ctx *context.Context, form auth.RepoSettingForm) {
 		// This section doesn't require repo_name/RepoName to be set in the form, don't show it
 		// as an error on the UI for this action
 		ctx.Data["Err_RepoName"] = nil
+		if err := models.CreateDefaultDatasetToRepo(repo); err != nil {
+			ctx.ServerError("CreateDefaultDatasetToRepo", err)
+			return
+		}
 
 		if form.EnableDataset && !models.UnitTypeDatasets.UnitGlobalDisabled() {
 			units = append(units, models.RepoUnit{