How to chanage value in Callback.Row register function?

[LaoBan-ywcm]

How to chanage value in Callback.Row register function?

Some fields in my database are encrypted. When performing a query, I need to join multiple tables and use the scan method. I want to decrypt in plugins.

I register the callback like this: db.Callback().Row().After("gorm:row").Register("*", decryptRowValue).

In decryptRowValue, I want to modify the value of wallet_name, but modifying it this way does not work. How should I set it up?

func decryptRowValue(db *gorm.DB) {
    rows, err := db.Statement.ConnPool.QueryContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)
    if err != nil {
        db.AddError(err)
        return
    }
    defer rows.Close()

    columns, err := rows.Columns()
    if err != nil {
        db.AddError(err)
        return
    }

    values := make([]interface{}, len(columns))
    valuePtrs := make([]interface{}, len(columns))
    for i := range values {
        valuePtrs[i] = &values[i]
    }

    if rows.Next() {
        if err = rows.Scan(valuePtrs...); err != nil {
            db.AddError(err)
            return
        }

        for i, col := range columns {
            if col == "wallet_name" {
                values[i] = "test"
            }

            fmt.Println(col, values[i])
        }
    }
}

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