feat: export excel file

server/common/excel.go

@@ -0,0 +1,41 @@
+package common
+
+import (
+	"crm/global"
+	"log"
+	"reflect"
+	"strconv"
+
+	"github.com/xuri/excelize/v2"
+)
+
+const (
+	letter = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+)
+
+func GenExcelFile[T any](sheet string, columns []string, rowValue []T, filename string) (string, error) {
+	f := excelize.NewFile()
+	index := f.NewSheet(sheet)
+	for i := 0; i < len(columns); i++ {
+		axis := string(letter[i]) + strconv.Itoa(1)
+		f.SetCellValue(sheet, axis, columns[i])
+	}
+
+	num := 2
+	for r := 0; r < len(rowValue); r++ {
+		v := reflect.ValueOf(rowValue[r])
+		for i := 0; i < v.NumField(); i++ {
+			axis := string(letter[i]) + strconv.Itoa(num)
+			f.SetCellValue(sheet, axis, v.Field(i))
+		}
+		num++
+	}
+	f.SetActiveSheet(index)
+	path := global.Config.File.Path + filename + ".xlsx"
+
+	if err := f.SaveAs(path); err != nil {
+		log.Printf("[ERROR] file save error: %s", err)
+		return "", err
+	}
+	return path, nil
+}