port creation failing when using subnet which don't have gateway ip

[Masco]

when creating a port/interface from a router we have to provide a subnet.
if we selecting a subnet which don't have gateway ip the creation call is failing.

procedure to reproduce:
1. create a subnet without gateway ip (select no gateway option)
2. go to one router and click create interface
3. select a subnet which created at step 1

you will get an error message.

solution proposed:
we have to remove the subnet which don't have gateway ip from the options list

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/206524

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/206524
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=ce65691bfc876400025eb8ba2ae18f8ff96e18f6
Submitter: Jenkins
Branch: master

commit ce65691bfc876400025eb8ba2ae18f8ff96e18f6
Author: Masco Kaliyamoorthy <email address hidden>
Date: Tue Jul 28 18:13:33 2015 +0530

    exclude subnets without gateway in create interface

    In create interface form, if we select the subnet which
    don't have gateway ip, the create will fail.

    we can remove the subnets which don't have gateway ip
    from the sebnet options to prevent the unnecessary
    server call.

    Change-Id: I75cec674516b07e141d74729b545e3d2cadee82d
    Closes-Bug: #1478939

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/283027

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/horizon 9.0.0.0b3 development milestone.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/283027
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=97994ae519c2fd0ba86d601d341e2c73754588d4
Submitter: Jenkins
Branch: stable/liberty

commit 97994ae519c2fd0ba86d601d341e2c73754588d4
Author: Masco Kaliyamoorthy <email address hidden>
Date: Tue Jul 28 18:13:33 2015 +0530

    exclude subnets without gateway in create interface

    In create interface form, if we select the subnet which
    don't have gateway ip, the create will fail.

    we can remove the subnets which don't have gateway ip
    from the sebnet options to prevent the unnecessary
    server call.

    Change-Id: I75cec674516b07e141d74729b545e3d2cadee82d
    Closes-Bug: #1478939
    (cherry picked from commit ce65691bfc876400025eb8ba2ae18f8ff96e18f6)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 8.0.2 release.