func sessionFromRPC(session *pbg.Session) {
if session == nil {
return
}
if len(session.ShardSessions) == 0 {
session.ShardSessions = nil
}
}
func sessionFromRPC(session *vtgatepb.Session) interface{} {
if session == nil {
return nil
}
if len(session.ShardSessions) == 0 {
session.ShardSessions = nil
}
return session
}
// requestToPartialError fills reply for a partial error if requested
// (that is, an error that may change the session).
// It returns true if a partial error was requested, false otherwise.
// This partial error should only be returned by Execute* calls.
func requestToPartialError(request string, session *vtgatepb.Session) error {
if !strings.HasPrefix(request, PartialErrorPrefix) {
return nil
}
request = strings.TrimPrefix(request, PartialErrorPrefix)
parts := strings.Split(request, "/")
if len(parts) > 1 && parts[1] == "close transaction" {
session.InTransaction = false
}
return trimmedRequestToError(parts[0])
}
func (c *successClient) Begin(ctx context.Context, outSession *pbg.Session) error {
outSession.InTransaction = true
return nil
}
// Begin begins a transaction. It has to be concluded by a Commit or Rollback.
func (vtg *VTGate) Begin(ctx context.Context, outSession *vtgatepb.Session) error {
outSession.InTransaction = true
return nil
}