How do I use transaction ?

[casbin-bot]

@tangyang9464 @JalinWang @imp2002

[JalinWang]

@VaneLord67 Could you please provide more details about what you want to achieve (scenario&purpose) ?

[VaneLord67]

@VaneLord67 Could you please provide more details about what you want to achieve (scenario&purpose) ?

@JalinWang I want to remove and add policies in a transaction just like this:

enforcer.Transaction(func(tx *gorm.DB) error {
    _, err = tx.RemoveFilteredPolicy(....)
    if err != nil {return err}
    _, err = tx.AddPolicy(....)
    if err != nil {return err}
    return nil
}) 

[hsluoyz]

@VaneLord67 @JalinWang does gorm support transactions?

[VaneLord67]

@VaneLord67 @JalinWang does gorm support transactions?

https://gorm.io/docs/transactions.html

[hsluoyz]

@JalinWang plz work on it

[VaneLord67]

@JalinWang I have a simple implementation at #176