IDFromName for networking resources
diff --git a/openstack/networking/v2/subnets/requests.go b/openstack/networking/v2/subnets/requests.go
index 6e01f05..c3f6364 100644
--- a/openstack/networking/v2/subnets/requests.go
+++ b/openstack/networking/v2/subnets/requests.go
@@ -1,6 +1,8 @@
package subnets
import (
+ "fmt"
+
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
)
@@ -234,3 +236,36 @@
_, res.Err = c.Delete(deleteURL(c, id), nil)
return res
}
+
+// IDFromName is a convienience function that returns a subnet's ID given its name.
+func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
+ subnetCount := 0
+ subnetID := ""
+ if name == "" {
+ return "", fmt.Errorf("A network name must be provided.")
+ }
+ pager := List(client, nil)
+ pager.EachPage(func(page pagination.Page) (bool, error) {
+ subnetList, err := ExtractSubnets(page)
+ if err != nil {
+ return false, err
+ }
+
+ for _, s := range subnetList {
+ if s.Name == name {
+ subnetCount++
+ subnetID = s.ID
+ }
+ }
+ return true, nil
+ })
+
+ switch subnetCount {
+ case 0:
+ return "", fmt.Errorf("Unable to find network: %s", name)
+ case 1:
+ return subnetID, nil
+ default:
+ return "", fmt.Errorf("Found %d networks matching %s", subnetCount, name)
+ }
+}