AttributeError - 'NoneType' object has no attribute 'lower'

[Adriano]

When create a service with region = "None", occurs Error list services without horizon.

how to test
> create a service any with the region = None

Example:

+----------------------------------+-----------+--------------+----------------+---------+-----------+------------------------------------------+
| ID | Region | Service Name | Service Type | Enabled | Interface | URL |
+----------------------------------+-----------+--------------+----------------+---------+-----------+------------------------------------------+
| 01089a905fec48ef957e77281c9aec92 | RegionOne | nova_legacy | compute_legacy | True | public | http://10.0.99.85:8774/v2/$(project_id)s |
| 1238174be563469fa1fd34fec099bcf8 | RegionOne | cinder | volume | True | admin | http://10.0.99.85:8776/v1/$(project_id)s |
| 22303c8d5b0340cda534f0fd33fd2ac3 | None | nova | image | True | public | http://10.0.99.85:500/v1/$(project_id)s |
-------------------------------------------------------------------------------------------------------------------------------------------------

> go to http://localhost/dashboard/admin/info/

horizon error

File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/templatetags/context_selection.py", line 100, in <lambda>
AttributeError: 'NoneType' object has no attribute 'lower'
2016-05-11 16:59:02.554680 key=lambda x: x.lower()),

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/316847

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/316847
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=da2e93578f1f2b364ddb4d66e9311d225ab629d5
Submitter: Jenkins
Branch: master

commit da2e93578f1f2b364ddb4d66e9311d225ab629d5
Author: Yosef Hoffman <email address hidden>
Date: Mon May 16 09:02:17 2016 -0400

    Fix AttributeError in context_selection.py

    When create a service with region = None,

    File "/openstack_dashboard/templatetags/context_selection.py", line 100,
    in <lambda>
    AttributeError: 'NoneType' object has no attribute 'lower'

    The problem code:

        sorted(request.user.available_services_regions,
               key=lambda x: x.lower())

    To fix this, if region is NoneType, use '' as key to put it first in the
    list.

    Change-Id: Ide8eaeeee634bf1933ef263d3b27204c7711d167
    Closes-Bug: #1581667

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/horizon 10.0.0.0b3 development milestone.