zrhoffman commented on a change in pull request #5071:
URL: https://github.com/apache/trafficcontrol/pull/5071#discussion_r501975728
##########
File path: traffic_ops/traffic_ops_golang/dbhelpers/db_helpers.go
##########
@@ -423,6 +425,34 @@ func GetServerCapabilitiesFromName(name string, tx
*sql.Tx) ([]string, error) {
return caps, nil
}
+const dsrExistsQuery = `
+SELECT EXISTS(
+ SELECT id
+ FROM deliveryservice_request
+ WHERE status <> 'complete' AND
+ status <> 'rejected' AND
+ (
+ (change_type = 'delete' AND original->>'xmlId' = $1)
+ OR
+ (change_type <> 'delete' AND deliveryservice->>'xmlId'
= $1)
+ )
+)
+`
+
+// DSRExistsWithXMLID returns whether or not an **open** Delivery Service
+// Request with the given xmlid exists, and any error that occurred.
+func DSRExistsWithXMLID(xmlid string, tx *sql.Tx) (bool, error) {
+ if tx == nil {
+ return false, errors.New("checking for DSR with nil
transaction")
+ }
+
+ var exists bool
+ if err := tx.QueryRow(dsrExistsQuery, xmlid).Scan(&exists); err != nil {
+ return false, err
+ }
+ return exists, nil
Review comment:
Whoops, yeah that's what I meant
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