实现总体流量按天统计、按小时统计，提供管理平台Dashboard API

internal/db/models/traffic_daily_stat_dao.go

@@ -0,0 +1,75 @@
+package models
+
+import (
+	"github.com/TeaOSLab/EdgeAPI/internal/errors"
+	"github.com/TeaOSLab/EdgeAPI/internal/utils"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/maps"
+)
+
+type TrafficDailyStatDAO dbs.DAO
+
+func NewTrafficDailyStatDAO() *TrafficDailyStatDAO {
+	return dbs.NewDAO(&TrafficDailyStatDAO{
+		DAOObject: dbs.DAOObject{
+			DB:     Tea.Env,
+			Table:  "edgeTrafficDailyStats",
+			Model:  new(TrafficDailyStat),
+			PkName: "id",
+		},
+	}).(*TrafficDailyStatDAO)
+}
+
+var SharedTrafficDailyStatDAO *TrafficDailyStatDAO
+
+func init() {
+	dbs.OnReady(func() {
+		SharedTrafficDailyStatDAO = NewTrafficDailyStatDAO()
+	})
+}
+
+// 增加流量
+func (this *TrafficDailyStatDAO) IncreaseDailyBytes(tx *dbs.Tx, day string, bytes int64) error {
+	if len(day) != 8 {
+		return errors.New("invalid day '" + day + "'")
+	}
+	err := this.Query(tx).
+		Param("bytes", bytes).
+		InsertOrUpdateQuickly(maps.Map{
+			"day":   day,
+			"bytes": bytes,
+		}, maps.Map{
+			"bytes": dbs.SQL("bytes+:bytes"),
+		})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// 获取日期之间统计
+func (this *TrafficDailyStatDAO) FindDailyStats(tx *dbs.Tx, dayFrom string, dayTo string) (result []*TrafficDailyStat, err error) {
+	ones, err := this.Query(tx).
+		Between("day", dayFrom, dayTo).
+		FindAll()
+	dayMap := map[string]*TrafficDailyStat{} // day => Stat
+	for _, one := range ones {
+		stat := one.(*TrafficDailyStat)
+		dayMap[stat.Day] = stat
+	}
+	days, err := utils.RangeDays(dayFrom, dayTo)
+	if err != nil {
+		return nil, err
+	}
+	for _, day := range days {
+		stat, ok := dayMap[day]
+		if ok {
+			result = append(result, stat)
+		} else {
+			result = append(result, &TrafficDailyStat{Day: day})
+		}
+	}
+	return result, nil
+}