os-floating-ips gives 500 with FlatManager

When the FlatManager is in use, os-floating-ips gives a 500 error, because "'FlatManager' object has no attribute 'get_floating_ips_by_project"

It should probably return something more helpful (empty list or sensible error code).

2012-02-20 12:22:47 INFO nova.api.openstack.wsgi [req-75556a86-9560-4630-8b54-42f467c1c1c8 47c273884edd402d9c6cba469d6dbf0f b560b4f9ab4a4941b3bafbb44e3e100b] GET http://192.168.71.1:8774/v1.1/b560b4f9ab4a4941b3bafbb44e3e100b
/os-floating-ips
2012-02-20 12:22:47 DEBUG nova.api.openstack.wsgi [req-75556a86-9560-4630-8b54-42f467c1c1c8 47c273884edd402d9c6cba469d6dbf0f b560b4f9ab4a4941b3bafbb44e3e100b] Unrecognized Content-Type provided in request from (pid=7353) get
_body /opt/stack/nova/nova/api/openstack/wsgi.py:691
2012-02-20 12:22:47 DEBUG nova.rpc.common [req-75556a86-9560-4630-8b54-42f467c1c1c8 47c273884edd402d9c6cba469d6dbf0f b560b4f9ab4a4941b3bafbb44e3e100b] Making asynchronous call on network ... from (pid=7353) multicall /opt/st
ack/nova/nova/rpc/amqp.py:318
2012-02-20 12:22:47 DEBUG nova.rpc.common [req-75556a86-9560-4630-8b54-42f467c1c1c8 47c273884edd402d9c6cba469d6dbf0f b560b4f9ab4a4941b3bafbb44e3e100b] MSG_ID is 9b24b4656db04e318af397ca2d1edcba from (pid=7353) multicall /opt
/stack/nova/nova/rpc/amqp.py:321
2012-02-20 12:22:47 ERROR nova.api.openstack [req-75556a86-9560-4630-8b54-42f467c1c1c8 47c273884edd402d9c6cba469d6dbf0f b560b4f9ab4a4941b3bafbb44e3e100b] Caught error: Remote error: AttributeError 'FlatManager' object has no attribute 'get_floating_ips_by_project'
[u'Traceback (most recent call last):\n', u' File "/opt/stack/nova/nova/rpc/amqp.py", line 247, in _process_data\n node_func = getattr(self.proxy, str(method))\n', u' File "/opt/stack/nova/nova/service.py", line 212, in __getattr__\n return getattr(manager, key)\n', u"AttributeError: 'FlatManager' object has no attribute 'get_floating_ips_by_project'\n"].
(nova.api.openstack): TRACE: Traceback (most recent call last):
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/api/openstack/__init__.py", line 41, in __call__
(nova.api.openstack): TRACE: return req.get_response(self.application)
<snip>
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/api/openstack/compute/contrib/floating_ips.py", line 137, in index
(nova.api.openstack): TRACE: floating_ips = self.network_api.get_floating_ips_by_project(context)
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/network/api.py", line 86, in get_floating_ips_by_project
(nova.api.openstack): TRACE: {'method': 'get_floating_ip_by_address',
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/rpc/__init__.py", line 69, in call
(nova.api.openstack): TRACE: return _get_impl().call(context, topic, msg, timeout)
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/rpc/impl_kombu.py", line 624, in call
(nova.api.openstack): TRACE: return rpc_amqp.call(context, topic, msg, timeout, Connection.pool)
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/rpc/amqp.py", line 335, in call
(nova.api.openstack): TRACE: rv = list(rv)
(nova.api.openstack): TRACE: File "/opt/stack/nova/nova/rpc/amqp.py", line 303, in __iter__
(nova.api.openstack): TRACE: raise result
(nova.api.openstack): TRACE: RemoteError: Remote error: AttributeError 'FlatManager' object has no attribute 'get_floating_ips_by_project'
(nova.api.openstack): TRACE: [u'Traceback (most recent call last):\n', u' File "/opt/stack/nova/nova/rpc/amqp.py", line 247, in _process_data\n node_func = getattr(self.proxy, str(method))\n', u' File "/opt/stack/nova/nova/service.py", line 212, in __getattr__\n return getattr(manager, key)\n', u"AttributeError: 'FlatManager' object has no attribute 'get_floating_ips_by_project'\n"].
(nova.api.openstack): TRACE:
2012-02-20 12:22:47 INFO nova.api.openstack [req-75556a86-9560-4630-8b54-42f467c1c1c8 47c273884edd402d9c6cba469d6dbf0f b560b4f9ab4a4941b3bafbb44e3e100b] http://192.168.71.1:8774/v1.1/b560b4f9ab4a4941b3bafbb44e3e100b/os-floating-ips returned with HTTP 500