// PutMulti is a batch version of Put. One PendingKey is returned for each
// element of src in the same order.
func (t *Transaction) PutMulti(keys []*Key, src interface{}) ([]*PendingKey, error) {
if t.id == nil {
return nil, errExpiredTransaction
}
mutation, err := putMutation(keys, src)
if err != nil {
return nil, err
}
proto.Merge(t.mutation, mutation)
// Prepare the returned handles, pre-populating where possible.
ret := make([]*PendingKey, len(keys))
for i, key := range keys {
h := &PendingKey{}
if key.Incomplete() {
// This key will be in the final commit result.
t.pending = append(t.pending, h)
} else {
h.key = key
}
ret[i] = h
}
return ret, nil
}
// DeleteMulti is a batch version of Delete.
func (t *Transaction) DeleteMulti(keys []*Key) error {
if t.id == nil {
return errExpiredTransaction
}
mutation, err := deleteMutation(keys)
if err != nil {
return err
}
proto.Merge(t.mutation, mutation)
return nil
}