feat: add group xlsx upload button (#3885)

object/group_upload.go

@@ -0,0 +1,61 @@
+// Copyright 2025 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package object
+
+import (
+	"github.com/casdoor/casdoor/xlsx"
+)
+
+func getGroupMap(owner string) (map[string]*Group, error) {
+	m := map[string]*Group{}
+
+	groups, err := GetGroups(owner)
+	if err != nil {
+		return m, err
+	}
+
+	for _, group := range groups {
+		m[group.GetId()] = group
+	}
+
+	return m, nil
+}
+
+func UploadGroups(owner string, path string) (bool, error) {
+	table := xlsx.ReadXlsxFile(path)
+
+	oldGroupMap, err := getGroupMap(owner)
+	if err != nil {
+		return false, err
+	}
+
+	transGroups, err := StringArrayToStruct[Group](table)
+	if err != nil {
+		return false, err
+	}
+
+	newGroups := []*Group{}
+	for _, group := range transGroups {
+		if _, ok := oldGroupMap[group.GetId()]; !ok {
+			newGroups = append(newGroups, group)
+		}
+	}
+
+	if len(newGroups) == 0 {
+		return false, nil
+	}
+
+	return AddGroupsInBatch(newGroups)
+}