Tx returns an `ent.Tx` for mutations that were executed in transactions; it returns an error otherwise.
()
| 3978 | // Tx returns an `ent.Tx` for mutations that were executed in transactions; |
| 3979 | // it returns an error otherwise. |
| 3980 | func (m GroupMutation) Tx() (*Tx, error) { |
| 3981 | if _, ok := m.driver.(*txDriver); !ok { |
| 3982 | return nil, errors.New("ent: mutation is not running in a transaction") |
| 3983 | } |
| 3984 | tx := &Tx{config: m.config} |
| 3985 | tx.init() |
| 3986 | return tx, nil |
| 3987 | } |
| 3988 | |
| 3989 | // SetID sets the value of the id field. Note that this |
| 3990 | // operation is only accepted on creation of Group entities. |