config: handle exception in object create and undo persisted uuid

[Hampapur Ajay]

While creating a floating-ip I didn’t have a project set…

I got an exception:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 525, in handler_trap_exception
    response = handler(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/vnc_cfg_api_server/gen/vnc_api_server_gen.py", line 4832, in floating_ips_http_post
    (ok, result) = r_class.http_post_collection(tenant_name, obj_dict, db_conn)
  File "/usr/local/lib/python2.7/site-packages/vnc_cfg_api_server/vnc_cfg_types.py", line 76, in http_post_collection
    proj_dict = obj_dict['project_refs'][0]
KeyError: 'project_refs'

Once i fixed my code, i can’t create a new entry because:
E0422 00:49:26.230953 20198 opencontrail.go:620] Create floating-ip frontend: 409 Conflict: FQ Name: /fq-name-to-uuid/floating_ip:default-domain:default-project:Public:Public:frontend exists already with ID: 419cad88-6d5e-4d73-87fe-26cbdce07850

curl http://localhost:8082/floating-ips | python -mjson.tool
  % Total % Received % Xferd Average Speed Time Time Time Current
                                 Dload Upload Total Spent Left Speed
100 20 100 20 0 0 747 0 --:--:-- --:--:-- --:--:-- 769
{
    "floating-ips": []
}

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/9503
Submitter: Hampapur Ajay (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/9503
Committed: http://github.org/Juniper/contrail-generateDS/commit/a671d737fd9b11c343d4143a58619f095fea4f23
Submitter: Zuul
Branch: master

commit a671d737fd9b11c343d4143a58619f095fea4f23
Author: Hampapur Ajay <email address hidden>
Date: Fri Apr 24 10:33:05 2015 -0700

config: handle any exception in resource-type post_collection handler

Closes-Bug1447859

Change-Id: Icad76ff523ceb9b039dc4a28ddd6861894437e5d

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/9553
Submitter: Hampapur Ajay (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/9553
Committed: http://github.org/Juniper/contrail-generateDS/commit/c5e5e856599d0e2dcb80b7eb16390f0e5ec0a18a
Submitter: Zuul
Branch: R2.20

commit c5e5e856599d0e2dcb80b7eb16390f0e5ec0a18a
Author: Hampapur Ajay <email address hidden>
Date: Fri Apr 24 10:33:05 2015 -0700

config: handle any exception in resource-type post_collection handler

Closes-Bug1447859

Change-Id: Icad76ff523ceb9b039dc4a28ddd6861894437e5d
(cherry picked from commit a671d737fd9b11c343d4143a58619f095fea4f23)