lcfns/service/app/event.go

package app

import (
	"github.com/sirupsen/logrus"
	"lcfns/global"
	"lcfns/model/app"
	"lcfns/model/app/request"
	"lcfns/model/app/response"
)

var picService = PictureService{}

type EventService struct {
}

func (EventService) List(req request.Event) (events []response.Event, err error) {
	//SELECT id,event_type,event_code,start_time,handle_time
	//FROM `event` WHERE mac_address IN (SELECT c.mac_address FROM gateway g JOIN camera c ON g.id = c.gid WHERE g.uid = 1);
	//查找用户所有摄像头的mac_address:
	//SELECT c.mac_address FROM gateway g JOIN camera c ON g.id = c.gid WHERE g.uid = ?
	var macs []string
	sub := global.Db.Select("c.mac_address").
		Table("gateway g JOIN camera c ON g.id = c.gid").
		Where("g.uid = ?", req.UId).
		Find(&macs)
	//查询事件
	db := global.Db.Select("e.id,e.event_type,e.event_code,e.start_time,e.handle_time,g.gateway_name").
		Table("event e JOIN camera c ON e.mac_address = c.mac_address JOIN gateway g ON c.gid = g.id")
	if req.EventType > 0 && req.EventType <= 4 { //todo 未生效
		db.Where("e.event_type = ?", eMap[req.EventType])
	}
	if req.IsHandled != nil && *req.IsHandled {
		db.Where("NOT ISNULL(e.handle_time)")
	}
	if req.CreatedAt != "" {
		db.Where("e.start_time > ?", req.CreatedAt)
	}
	if req.GatewayName != "" {
		db.Where("g.gateway_name LIKE ?", "%"+req.GatewayName+"%")
	}
	err = db.Where("e.mac_address IN (?)", sub).
		Offset((req.Page - 1) * req.PageSize).
		Limit(req.PageSize).
		Find(&events).Debug().Error
	if err != nil {
		logrus.Error(err)
		return nil, err
	}
	for i, v := range events {
		events[i].EventType = sMap[v.EventType]
		events[i].PictureUrl = "http:192.168.110.69:8889/picture/get?picode=" + v.EventCode
	}
	return events, err
}

func (EventService) Create(event app.Event) error {
	return global.Db.Omit("handle_time").Create(&event).Debug().Error
}

func (EventService) Save(event *app.Event, pic *app.Picture, picData *app.PictureData) {
	err := global.Db.Omit("handle_time").Create(event).Error
	if err != nil {
		logrus.Error("事件保存失败", err)
		return
	}
	pic.EventId = event.ID
	picService.SaveEventPicture(pic, picData)
}

// 事件类型
var eMap = map[uint]string{
	1: "shelteralarm",
	2: "regionEntrance",
	3: "fielddetection",
	4: "linedetection",
}

var sMap = map[string]string{
	"shelteralarm":   "遮盖报警",
	"regionEntrance": "进入区域",
	"fielddetection": "区域入侵",
	"linedetection":  "越界侦测",
}