hotime/db/transaction.go

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package db
import (
"sync"
)
// Action 事务操作
// 如果 action 返回 true 则提交事务;返回 false 则回滚
func (that *HoTimeDB) Action(action func(db HoTimeDB) (isSuccess bool)) (isSuccess bool) {
db := HoTimeDB{
DB: that.DB,
ContextBase: that.ContextBase,
DBName: that.DBName,
HoTimeCache: that.HoTimeCache,
Log: that.Log,
Type: that.Type,
Prefix: that.Prefix,
LastQuery: that.LastQuery,
LastData: that.LastData,
ConnectFunc: that.ConnectFunc,
LastErr: that.LastErr,
limit: that.limit,
Tx: that.Tx,
SlaveDB: that.SlaveDB,
Mode: that.Mode,
Dialect: that.Dialect,
mu: sync.RWMutex{},
limitMu: sync.Mutex{},
}
tx, err := db.Begin()
if err != nil {
that.LastErr.SetError(err)
return isSuccess
}
db.Tx = tx
isSuccess = action(db)
if !isSuccess {
err = db.Tx.Rollback()
if err != nil {
that.LastErr.SetError(err)
return isSuccess
}
return isSuccess
}
err = db.Tx.Commit()
if err != nil {
that.LastErr.SetError(err)
return false
}
return true
}