mh_goadmin_server/app/admin/models/file.go

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package models
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"github.com/codinl/go-logger"
"github.com/xuri/excelize/v2"
"reflect"
)
type CategoryExcel struct {
FirstCategory string `json:"first_category" binding:"required"` // 一级分类
SecondCategory string `json:"second_category"` // 二级分类
ThreeCategory string `json:"three_category"` // 三级分类
}
type CommodityExcel struct {
Category string `json:"category" binding:"required"` // 商品所属分类
Name string `json:"name" binding:"required"` // 商品名称
IMEIType string `json:"imei_type" binding:"required"` // 是否串码 1-无串码 2-串码(系统生成) 3-串码(手动添加)
SysGenerate string `json:"sys_generate" binding:"required"` // 系统生成串码
SupplierName string `json:"supplier_name" binding:"required"` // 供应商名称
SellBrokerage string `json:"sell_brokerage" binding:"required"` // 销售毛利提成
StaffBrokerage string `json:"staff_brokerage" binding:"required"` // 员工毛利提成
MemberDiscount string `json:"member_discount" binding:"required"` // 会员优惠
RetailPrice string `json:"retail_price" binding:"required"` // 指导零售价
MinRetailPrice string `json:"min_retail_price" binding:"required"` // 最低零售价
WholesalePrice string `json:"wholesale_price" binding:"required"` // 指导采购价
StaffCostPrice string `json:"staff_cost_price" binding:"required"` // 员工成本价加价
Origin string `json:"origin"` // 产地
Remark string `json:"remark"` // 备注
}
// 获取struct的tag标签匹配excel导入数据
func getJSONTagNames(s interface{}) []string {
valueType := reflect.TypeOf(s)
if valueType.Kind() != reflect.Struct {
fmt.Println("传入的不是结构体")
return nil
}
var tagNames []string
for i := 0; i < valueType.NumField(); i++ {
field := valueType.Field(i)
tag := field.Tag.Get("json")
if tag != "" {
tagNames = append(tagNames, tag)
}
}
return tagNames
}
// 预览excel数据不做必填项校验
func FileExcelReader(d []byte, cols []string) ([]byte, []map[string]interface{}, error) {
reader, err := excelize.OpenReader(bytes.NewReader(d))
if err != nil {
logger.Error("open reader err:", err)
return nil, nil, err
}
sheetList := reader.GetSheetList()
if len(sheetList) == 0 {
logger.Error("sheet list nil")
return nil, nil, err
}
rows, err := reader.Rows(sheetList[0])
if err != nil {
logger.Error("reader rows err:", err)
return nil, nil, err
}
sheetCols, err := reader.GetCols(sheetList[0])
if err != nil {
logger.Error("reader get cols err:", err)
return nil, nil, err
}
if len(sheetCols) == 0 {
logger.Error("get cols null err")
return nil, nil, err
}
colsMap := make([]map[string]interface{}, 0)
if len(cols) == 0 {
if sheetList[0] == "导分类" {
cols = getJSONTagNames(CategoryExcel{})
} else if sheetList[0] == "导商品" {
cols = getJSONTagNames(CommodityExcel{})
} else {
cols = make([]string, len(sheetCols))
for i := 0; i < len(sheetCols); i++ {
cols[i] = fmt.Sprintf("c%02d", i)
}
}
} else {
fmt.Println("cols", len(cols))
fmt.Println("sheetCols", len(sheetCols))
if len(cols) != len(sheetCols) {
logger.Error("cols length not equal columns")
return nil, nil, errors.New("cols length not equal columns")
}
}
for rows.Next() {
columns, err := rows.Columns()
if err != nil {
logger.Error("rows columns err:", err)
return nil, nil, err
}
columnMap := make(map[string]interface{}, 0)
for i, _ := range cols {
columnMap[cols[i]] = ""
}
for i, _ := range columns {
columnMap[cols[i]] = columns[i]
}
fmt.Println("columnMap:", columnMap)
colsMap = append(colsMap, columnMap)
}
fmt.Println("colsMap:", colsMap)
mCols, err := json.Marshal(colsMap)
if err != nil {
logger.Error("marshal err:", err)
return mCols, nil, err
}
return mCols, colsMap, nil
}
// 导入excel数据校验必填项
func FileExcelImport(d []byte, cols []string) ([]byte, []map[string]interface{}, error) {
reader, err := excelize.OpenReader(bytes.NewReader(d))
if err != nil {
logger.Error("open reader err:", err)
return nil, nil, err
}
sheetList := reader.GetSheetList()
if len(sheetList) == 0 {
logger.Error("sheet list nil")
return nil, nil, err
}
rows, err := reader.Rows(sheetList[0])
if err != nil {
logger.Error("reader rows err:", err)
return nil, nil, err
}
sheetCols, err := reader.GetCols(sheetList[0])
if err != nil {
logger.Error("reader get cols err:", err)
return nil, nil, err
}
if len(sheetCols) == 0 {
logger.Error("get cols null err")
return nil, nil, err
}
colsMap := make([]map[string]interface{}, 0)
if len(cols) == 0 {
if sheetList[0] == "导分类" {
//校验商品分类导入规则
err := checkCategoryExcel(sheetCols)
if err != nil {
return nil, nil, err
}
cols = getJSONTagNames(CategoryExcel{})
} else if sheetList[0] == "导商品" {
//校验商品资料导入规则
err := checkCommodityExcel(sheetCols)
if err != nil {
return nil, nil, err
}
cols = getJSONTagNames(CommodityExcel{})
} else {
cols = make([]string, len(sheetCols))
for i := 0; i < len(sheetCols); i++ {
cols[i] = fmt.Sprintf("c%02d", i)
}
}
} else {
fmt.Println("cols", len(cols))
fmt.Println("sheetCols", len(sheetCols))
if len(cols) != len(sheetCols) {
logger.Error("cols length not equal columns")
return nil, nil, errors.New("cols length not equal columns")
}
}
for rows.Next() {
columns, err := rows.Columns()
if err != nil {
logger.Error("rows columns err:", err)
return nil, nil, err
}
columnMap := make(map[string]interface{}, 0)
for i, _ := range cols {
columnMap[cols[i]] = ""
for j, _ := range columns {
columnMap[cols[j]] = columns[j]
}
}
//for i, _ := range columns {
// columnMap[cols[i]] = columns[i]
//}
fmt.Println("columnMap:", columnMap)
colsMap = append(colsMap, columnMap)
}
fmt.Println("colsMap:", colsMap)
mCols, err := json.Marshal(colsMap)
if err != nil {
logger.Error("marshal err:", err)
return mCols, nil, err
}
return mCols, colsMap, nil
}
// 校验商品分类导入规则
// 导入商品分类校验报错: 1只有3级没有2级或1级 2有23级但没有1级
func checkCategoryExcel(sheetCols [][]string) error {
if len(sheetCols) != 3 {
return errors.New("模版错误,请检查文件")
}
if len(sheetCols[0]) < len(sheetCols[1]) || len(sheetCols[0]) < len(sheetCols[2]) {
return errors.New("格式错误,缺少一级分类")
} else if len(sheetCols[1]) < len(sheetCols[2]) {
return errors.New("格式错误,缺少二级分类")
}
for i := 1; i < len(sheetCols[2]); i++ {
if sheetCols[0][i] == "" && (sheetCols[1][i] != "" || sheetCols[2][i] != "") {
return errors.New("格式错误,缺少一级分类")
} else if sheetCols[2][i] != "" && sheetCols[1][i] == "" {
return errors.New("格式错误,缺少二级分类")
}
}
return nil
}
// 校验商品资料导入规则
// 导入商品资料校验报错:必填项缺少数据(除了产地、备注,其他都是必填项)
func checkCommodityExcel(sheetCols [][]string) error {
if len(sheetCols) != 14 {
return errors.New("模版错误,请检查文件")
}
for i := 0; i < len(sheetCols)-2; i++ {
if len(sheetCols[i]) < len(sheetCols[i+1]) {
return errors.New("格式错误,有必填项未录入")
}
for _, v := range sheetCols[i] {
if v == "" {
return errors.New("格式错误,有必填项未录入")
}
}
}
return nil
}