/
csvOutput.go
69 lines (61 loc) · 1.42 KB
/
csvOutput.go
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package fj
import (
"encoding/csv"
"fmt"
"log"
"os"
"time"
"github.com/elliotchance/orderedmap/v2"
)
// CsvOutput csvファイルに出力する
func CsvOutput(datas []*orderedmap.OrderedMap[string, any]) {
if _, err := os.Stat("fj/data"); os.IsNotExist(err) {
os.Mkdir("fj/data", 0777)
}
now := time.Now()
filename := fmt.Sprintf("fj/data/result_%s.csv", fmt.Sprintf("%04d%02d%02d_%02d%02d%02d", now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second()))
file, err := os.Create(filename)
if err != nil {
log.Fatal(":", err)
}
defer file.Close()
// CSVファイルに書き込む
writer := csv.NewWriter(file)
defer writer.Flush()
heagders := append([]string{}, datas[0].Keys()...)
if err := writer.Write(heagders); err != nil {
log.Fatal(":", err)
}
for _, data := range datas {
values := make([]string, 0)
for _, key := range heagders {
v, ok := data.Get(key)
if !ok {
values = append(values, "")
continue
}
values = append(values, numToString(v))
}
if err := writer.Write(values); err != nil {
log.Fatal(":", err)
}
}
log.Println("save csv file:", filename)
}
func numToString(num any) string {
switch v := num.(type) {
case int:
return fmt.Sprintf("%d", v)
case float64:
if float64(int(v)) == v {
return fmt.Sprintf("%d", int(v))
}
return fmt.Sprintf("%f", v)
case string:
return string(v)
case []byte:
return string(v)
default:
return ""
}
}