Function rollback

dialect/sql/sqlgraph/graph.go:2015–2020

rollback calls to tx.Rollback and wraps the given error with the rollback error if occurred.

(tx dialect.Tx, err error)

// rollback calls to tx.Rollback and wraps the given error with the rollback error if occurred.
func rollback(tx dialect.Tx, err error) error {
	if rerr := tx.Rollback(); rerr != nil {
		err = fmt.Errorf("%w: %v", err, rerr)
	}
	return err
}

func edgeKeys(m map[string][]*EdgeSpec) []string {
	keys := make([]string, 0, len(m))