Files
cloudpods/pkg/cloudcommon/db/paging.go

53 lines
1.3 KiB
Go

// Copyright 2019 Yunion
//
// 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 db
import (
"yunion.io/x/jsonutils"
"yunion.io/x/sqlchemy"
)
type SPagingConfig struct {
Order sqlchemy.QueryOrderType
MarkerFields []string
DefaultLimit int
}
func decodePagingMarker(markString string) []string {
if len(markString) > 2 && markString[0] == '[' && markString[len(markString)-1] == ']' {
markJson, _ := jsonutils.ParseString(markString)
if markJson != nil {
if markArray, ok := markJson.(*jsonutils.JSONArray); ok {
return markArray.GetStringArray()
}
}
}
if len(markString) > 0 {
return []string{markString}
}
return []string{}
}
func encodePagingMarker(markers []string) string {
switch len(markers) {
case 0:
return ""
case 1:
return markers[0]
default:
return jsonutils.Marshal(markers).String()
}
}