bilibili-backup/app/service/bbq/user/internal/dao/user_black.go

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2019-04-22 10:59:20 +08:00
package dao
import (
"context"
xsql "database/sql"
"fmt"
"go-common/app/service/bbq/user/internal/model"
"go-common/library/database/sql"
"go-common/library/log"
"go-common/library/time"
)
const (
_addUserBlack = "insert into user_black_%02d (`mid`,`black_mid`) values (?,?) on duplicate key update state=0"
_cancelUserBlack = "update user_black_%02d set state=1 where mid=? and black_mid=?"
_getUserPartBlacks = "select black_mid, mtime from user_black_%02d where mid=? and state=0 and mtime<=? order by mtime desc, black_mid desc limit %d"
_getUserBlacks = "select black_mid from user_black_%02d where mid=? and state=0"
_isBlack = "select black_mid from user_black_%02d where mid=? and state=0 and black_mid in (%s)"
)
// TxAddUserBlack .
func (d *Dao) TxAddUserBlack(c context.Context, tx *sql.Tx, mid, upMid int64) (num int64, err error) {
var res xsql.Result
// sql中含有ignore该情况为了简化是否已存在的判断
querySQL := fmt.Sprintf(_addUserBlack, d.getTableIndex(mid))
if res, err = tx.Exec(querySQL, mid, upMid); err != nil {
log.Errorv(c, log.KV("event", "add_user_black"), log.KV("err", err), log.KV("mid", mid), log.KV("up_mid", upMid), log.KV("sql", querySQL))
return
}
return res.RowsAffected()
}
// TxCancelUserBlack .
func (d *Dao) TxCancelUserBlack(c context.Context, tx *sql.Tx, mid, upMid int64) (num int64, err error) {
var res xsql.Result
querySQL := fmt.Sprintf(_cancelUserBlack, d.getTableIndex(mid))
if res, err = tx.Exec(querySQL, mid, upMid); err != nil {
log.Errorv(c, log.KV("event", "cancel_user_black"), log.KV("err", err), log.KV("mid", mid), log.KV("up_mid", upMid), log.KV("sql", querySQL))
return
}
return res.RowsAffected()
}
// FetchBlackList 获取mid的所有拉黑up主
func (d *Dao) FetchBlackList(c context.Context, mid int64) (upMid []int64, err error) {
querySQL := fmt.Sprintf(_getUserBlacks, d.getTableIndex(mid))
rows, err := d.db.Query(c, querySQL, mid)
if err != nil {
log.Errorv(c, log.KV("event", "mysql_select"), log.KV("table", "user_black"))
return
}
defer rows.Close()
for rows.Next() {
var m int64
if err = rows.Scan(&m); err != nil {
log.Errorv(c, log.KV("event", "mysql_scan"), log.KV("table", "user_black"))
return
}
upMid = append(upMid, m)
}
log.Infov(c, log.KV("event", "mysql_select"), log.KV("sql", querySQL),
log.KV("mid", mid), log.KV("black_num", len(upMid)))
return
}
// FetchPartBlackList 获取mid的拉黑up主
func (d *Dao) FetchPartBlackList(c context.Context, mid int64, cursor model.CursorValue, size int) (
MID2IDMap map[int64]time.Time, blackMIDs []int64, err error) {
MID2IDMap, blackMIDs, err = d.fetchPartRelationUserList(c, mid, cursor, _getUserPartBlacks)
return
}
// IsBlack 获取mid的拉黑用户
func (d *Dao) IsBlack(c context.Context, mid int64, candidateMIDs []int64) (MIDMap map[int64]bool) {
if len(candidateMIDs) == 0 {
return
}
MIDMap = d.isMidIn(c, mid, candidateMIDs, _isBlack)
return
}