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