mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-05-10 23:58:59 +08:00
116 lines
2.7 KiB
Go
116 lines
2.7 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package excelutils
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"github.com/360EntSecGroup-Skylar/excelize"
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"yunion.io/x/jsonutils"
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)
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const (
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DEFAULT_SHEET = "Sheet1"
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)
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func decimalBaseMaxWidth(decNum int, base int) int {
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if decNum == 0 {
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return 1
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}
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width := 0
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for decNum > 0 {
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decNum = decNum / base
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width += 1
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}
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return width
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}
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func decimalBaseN(decNum int, base int, width int) (int, int) {
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b := 1
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for i := 0; i < width-1; i += 1 {
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decNum = decNum / base
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b = b * base
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}
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return decNum, b
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}
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func decimal2Base(decNum int, base int) []int {
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width := decimalBaseMaxWidth(decNum, base)
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ret := make([]int, width)
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for i := width; i > 0; i -= 1 {
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ith, divider := decimalBaseN(decNum, base, i)
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decNum -= ith * divider
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ret[width-i] = ith
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}
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return ret
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}
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func decimal2Alphabet(decNum int) string {
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var buf bytes.Buffer
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b26 := decimal2Base(decNum, 26)
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for i := 0; i < len(b26); i += 1 {
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if i == 0 && len(b26) > 1 {
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buf.WriteByte(byte('A' + b26[i] - 1))
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} else {
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buf.WriteByte(byte('A' + b26[i]))
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}
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}
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return buf.String()
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}
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func exportHeader(xlsx *excelize.File, texts []string, rowIndex int) {
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for i := 0; i < len(texts); i += 1 {
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cell := fmt.Sprintf("%s%d", decimal2Alphabet(i), rowIndex)
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xlsx.SetCellValue(DEFAULT_SHEET, cell, texts[i])
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}
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}
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func exportRow(xlsx *excelize.File, data jsonutils.JSONObject, keys []string, rowIndex int) {
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for i := 0; i < len(keys); i += 1 {
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var valStr string
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val, _ := data.GetIgnoreCases(keys[i])
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if val != nil {
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valStr, _ = val.GetString()
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}
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cell := fmt.Sprintf("%s%d", decimal2Alphabet(i), rowIndex)
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xlsx.SetCellValue(DEFAULT_SHEET, cell, valStr)
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}
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}
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func Export(data []jsonutils.JSONObject, keys []string, texts []string, writer io.Writer) error {
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xlsx := excelize.NewFile()
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exportHeader(xlsx, texts, 1)
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for i := 0; i < len(data); i += 1 {
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exportRow(xlsx, data[i], keys, i+2)
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}
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return xlsx.Write(writer)
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}
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func ExportFile(data []jsonutils.JSONObject, keys []string, texts []string, filename string) error {
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writer, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer writer.Close()
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return Export(data, keys, texts, writer)
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}
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