gadm-dws/impl/task/task3.go

// Copyright 2019 autocareai.com. All rights reserved.
// Use of this source code is governed by autocareai.com.

package task

import (
	"gadm-dws/apis"
	"gadm-dws/consts"
	"gadm-dws/model"
	"encoding/json"
	"strings"

	"gorm.io/gorm"
)

// 车牌和姓名对应关系(正确关系)
func Dws3Task(db *gorm.DB,dwsMessage *apis.DwsMessage, outputSourceCode string) (adsMsgList []*apis.AdsMessage, dwsMsgList []*apis.DwsMessage, err error) {
	dws3 := &model.Dws3{}
	err = json.Unmarshal([]byte(dwsMessage.Content), dws3)
	if err != nil {
		return nil, nil, nil
	}

	dws3.UpdatedAt = dwsMessage.Timestamp
	dws3.CreatedAt = dwsMessage.Timestamp

	if dws3.Owner == "" && dws3.Name != ""{
		dws3.Owner = dws3.Name
	}

	if dws3.Owner == "" || dws3.PlateNo == "" || dws3.PlateType == ""{
		return nil, nil, nil
	}


	oldDws3 := &model.Dws3{}
	where := map[string]interface{}{"plate_no": dws3.PlateNo, "plate_type": dws3.PlateType}
	err = oldDws3.Query(db, where)
	if err == nil {
		// 有数据
		if oldDws3.Owner == dws3.Owner {
			// 不处理
			return nil, nil,nil
		} else {
			// 更新时间大于消息时间表示是后面的消息，不处理
			if oldDws3.UpdatedAt > dws3.UpdatedAt{
				return nil,nil,nil
			}

			oldDws3.Owner = dws3.Owner
			oldDws3.UpdatedAt = dws3.UpdatedAt
			err = oldDws3.Update(db)
			if err != nil{
				if err != gorm.ErrRecordNotFound{
					return nil,nil,err
				}
			}
		}
	} else {
		// 无数据
		if err == gorm.ErrRecordNotFound {
			err = dws3.Insert(db)
			if err != nil {
				if !strings.Contains(err.Error(), "Duplicate") {
					return nil,nil, err
				}
			}
			oldDws3 = dws3
		} else{
			return nil,nil,err
		}
	}

	adsMsg := NewAdsMessage(dwsMessage, outputSourceCode, consts.ACTIONINSERT)
	msgByte, _ := json.Marshal(*oldDws3)
	adsMsg.Content = string(msgByte)
	adsMsgList = append(adsMsgList,adsMsg)
	return adsMsgList, nil, nil
}