76 lines
1.8 KiB
Go
76 lines
1.8 KiB
Go
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package dao
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import (
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"context"
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"strconv"
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"go-common/app/interface/main/dm2/model"
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"go-common/library/cache/redis"
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"go-common/library/log"
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)
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const (
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_prefixRecent = "dm_rct_"
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)
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func keyRecent(mid int64) string {
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return _prefixRecent + strconv.FormatInt(mid, 10)
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}
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// RecentDM get recent dm of up.
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func (d *Dao) RecentDM(c context.Context, mid, start, end int64) (dms []*model.DM, oids []int64, total int64, err error) {
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var (
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conn = d.dmRctRds.Get(c)
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key = keyRecent(mid)
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oidMap = make(map[int64]struct{})
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)
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defer conn.Close()
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if err = conn.Send("ZREVRANGE", key, start, end); err != nil {
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log.Error("conn.Send(ZREVRANGE %s) error(%s)", key, err)
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return
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}
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if err = conn.Send("ZCARD", key); err != nil {
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log.Error("conn.Send(ZCARD %s) error(%v)", key, err)
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return
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}
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if err = conn.Flush(); err != nil {
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log.Error("conn.Flush() error(%v)", err)
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return
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}
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values, err := redis.ByteSlices(conn.Receive())
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if err != nil {
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log.Error("conn.Receive(%s) error(%v)", key, err)
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return
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}
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if total, err = redis.Int64(conn.Receive()); err != nil {
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log.Error("conn.Receive(%s) error(%v)", key, err)
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return
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}
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for _, value := range values {
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dm := &model.DM{}
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if err = dm.Unmarshal(value); err != nil {
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log.Error("dm.Unmarshal(%s) error(%v)", value, err)
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return
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}
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dms = append(dms, dm)
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if _, ok := oidMap[dm.Oid]; !ok {
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oidMap[dm.Oid] = struct{}{}
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oids = append(oids, dm.Oid)
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}
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}
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return
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}
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// TrimUpRecent zrange remove recent dm of up.
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func (d *Dao) TrimUpRecent(c context.Context, mid, count int64) (err error) {
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var (
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conn = d.dmRctRds.Get(c)
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key = keyRecent(mid)
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)
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defer conn.Close()
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if _, err = conn.Do("ZREMRANGEBYRANK", key, 0, count-1); err != nil {
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log.Error("conn.Do(ZREMRANGEBYRANK %s) error(%v)", key, err)
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}
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return
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}
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