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49 lines
1.1 KiB
49 lines
1.1 KiB
package dorm
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import (
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"context"
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"go.mongodb.org/mongo-driver/mongo"
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)
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type MongoTransaction struct {
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startSession mongo.Session
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Session mongo.SessionContext
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db *mongo.Client // 驱动
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databaseName string // 库名
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collectionName string // 表名
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}
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// Begin 开始事务，会同时创建开始会话需要在退出时关闭会话
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func (c *MongoClient) Begin() (ms MongoTransaction, err error) {
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ms.db = c.Db
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// 开始会话
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ms.startSession, err = ms.db.StartSession()
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if err != nil {
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panic(err)
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}
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// 会话上下文
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ms.Session = mongo.NewSessionContext(context.Background(), ms.startSession)
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// 会话开启事务
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err = ms.startSession.StartTransaction()
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return ms, err
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}
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// Close 关闭会话
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func (ms *MongoTransaction) Close() {
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ms.startSession.EndSession(context.TODO())
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}
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// Rollback 回滚事务
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func (ms *MongoTransaction) Rollback() error {
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return ms.startSession.AbortTransaction(context.Background())
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}
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// Commit 提交事务
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func (ms *MongoTransaction) Commit() error {
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return ms.startSession.CommitTransaction(context.Background())
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}
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