rimashah25 commented on code in PR #7241:
URL: https://github.com/apache/trafficcontrol/pull/7241#discussion_r1049010402
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lib/go-tc/parameters.go:
##########
@@ -277,12 +277,15 @@ func ParamExists(id int64, tx *sql.Tx) (bool, error) {
// ParamsExist returns whether parameters exist for all the given ids, and any
error.
// TODO move to helper package.
-func ParamsExist(ids []int64, tx *sql.Tx) (bool, error) {
- count := 0
- if err := tx.QueryRow(`SELECT count(*) from parameter where id =
ANY($1)`, pq.Array(ids)).Scan(&count); err != nil {
- return false, errors.New("querying parameters existence from
id: " + err.Error())
+func ParamsExist(ids []int64, tx *sql.Tx) (bool, []int64, error) {
+ var nonExistingIDs []int64
+ if err := tx.QueryRow(`SELECT ARRAY_AGG(id) FROM UNNEST($1::INT[]) AS
id WHERE id NOT IN (SELECT id FROM parameter)`,
pq.Array(ids)).Scan(pq.Array(&nonExistingIDs)); err != nil {
+ return false, nil, errors.New("querying parameters existence
from id: " + err.Error())
Review Comment:
I understand that we shouldn't since it is a DB level. but also there is a
`TODO` to rework validation in `traffic_ops/traffic_ops_golang/api/api.go`. So,
I would do it as a separate PR.
```
// TODO: Rework validation to be able to return system-level errors
type ParseValidator interface {
Validate(tx *sql.Tx) error
}```
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