go-common/app/service/live/xuser/dao/exp/mysql.go
2019-04-22 18:49:16 +08:00

112 lines
3.3 KiB
Go

package exp
import (
"context"
"database/sql"
"fmt"
expm "go-common/app/service/live/xuser/model/exp"
"go-common/library/log"
"go-common/library/xstr"
)
const (
_shard = 10
_insExp = "INSERT IGNORE INTO user_exp_%d (uid,uexp,rexp) VALUES(?,?,?)"
_selExp = "SELECT uid,uexp,rexp,ctime,mtime FROM user_exp_%d where uid=?"
_inSelExp = "SELECT uid,uexp,rexp,ctime,mtime FROM user_exp_%d where uid IN (%s)"
_addUexp = "INSERT INTO user_exp_%d(uid,uexp,rexp) VALUES(?,?,0) ON DUPLICATE KEY UPDATE uexp=uexp+%d"
_addRexp = "INSERT INTO user_exp_%d(uid,uexp,rexp) VALUES(?,0,?) ON DUPLICATE KEY UPDATE rexp=rexp+%d"
_errorDBLogPrefix = "xuser.exp.dao.mysql"
)
// InitExp 初始化用户经验,用于首次查询
func (d *Dao) InitExp(c context.Context, uid int64, uexp int64, rexp int64) (row int64, err error) {
res, err := d.db.Exec(c, fmt.Sprintf(_insExp, uid%_shard), uid, uexp, rexp)
if err != nil {
log.Error(_errorDBLogPrefix+"|InitExp d.exp.Exec err: %v", err)
return
}
return res.RowsAffected()
}
// Exp 查询一条记录
func (d *Dao) Exp(c context.Context, uid int64) (exp *expm.Exp, err error) {
row := d.db.QueryRow(c, fmt.Sprintf(_selExp, uid%_shard), uid)
exp = &expm.Exp{}
if err = row.Scan(&exp.UID, &exp.Uexp, &exp.Rexp, &exp.CTime, &exp.MTime); err == sql.ErrNoRows {
// 查询结果为空时,初始化数据
_, err = d.InitExp(c, uid, 0, 0)
}
if err != nil {
log.Error(_errorDBLogPrefix+"|Exp row.Scan err: %v", err)
return
}
return
}
// MultiExp 批量查询
func (d *Dao) MultiExp(c context.Context, uids []int64) (exps []*expm.Exp, err error) {
exps = make([]*expm.Exp, 0)
var (
suffix int64
uidGroup [_shard][]int64
um = make(map[int64]struct{}, len(uids))
)
for _, uid := range uids {
suffix = uid % _shard
uidGroup[suffix] = append(uidGroup[suffix], uid)
um[uid] = struct{}{}
}
for index, uids := range uidGroup {
if 0 == len(uids) {
continue
}
rows, err1 := d.db.Query(c, fmt.Sprintf(_inSelExp, index, xstr.JoinInts(uids)))
if err1 != nil {
err = err1
log.Error(_errorDBLogPrefix+"|MultiExp d.exp.Query err: %v", err)
return
}
for rows.Next() {
ele := &expm.Exp{}
if err = rows.Scan(&ele.UID, &ele.Uexp, &ele.Rexp, &ele.CTime, &ele.MTime); err != nil {
log.Error(_errorDBLogPrefix+"|MultiExp rows.Scan err: %v", err)
return
}
exps = append(exps, ele)
delete(um, ele.UID)
}
}
// 初始化不存在的数据,补齐数据
for uid := range um {
d.InitExp(c, uid, 0, 0)
ele := &expm.Exp{UID: uid, Uexp: 0, Rexp: 0}
exps = append(exps, ele)
}
return
}
// AddUexp 添加用户经验
func (d *Dao) AddUexp(c context.Context, uid int64, uexp int64) (affect int64, err error) {
upSQL := fmt.Sprintf(_addUexp, uid%_shard, uexp)
res, err := d.db.Exec(c, upSQL, uid, uexp)
if err != nil {
log.Error(_errorDBLogPrefix+"|Exec(%s) error(%v)", upSQL, err)
return
}
return res.RowsAffected()
}
// AddRexp 添加主播经验
func (d *Dao) AddRexp(c context.Context, uid int64, rexp int64) (affect int64, err error) {
upSQL := fmt.Sprintf(_addRexp, uid%_shard, rexp)
res, err := d.db.Exec(c, upSQL, uid, rexp)
if err != nil {
log.Error(_errorDBLogPrefix+"|AddRexp|Exec(%s) error(%v)", upSQL, err)
return
}
return res.RowsAffected()
}