old_contents: # vim: tabstop=4 shiftwidth=4 softtabstop=4
  #
  # Copyright 2013 OpenStack Foundation
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  #
  
  """Support routring table configration on Router
  
  Revision ID: 1c33fa3cd1a1
  Revises: 45680af419f9
  Create Date: 2013-01-17 14:35:09.386975
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '1c33fa3cd1a1'
  down_revision = '45680af419f9'
  
  # Change to ['*'] if this migration applies to all plugins
  
  migration_for_plugins = [
      'neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2',
      'neutron.plugins.linuxbridge.lb_neutron_plugin.LinuxBridgePluginV2',
      'neutron.plugins.nec.nec_plugin.NECPluginV2',
      'neutron.plugins.ryu.ryu_neutron_plugin.RyuNeutronPluginV2',
      'neutron.plugins.metaplugin.meta_neutron_plugin.MetaPluginV2'
  ]
  
  from alembic import op
  import sqlalchemy as sa
  
  from neutron.db import migration
  
  
  def upgrade(active_plugin=None, options=None):
      if not migration.should_run(active_plugin, migration_for_plugins):
          return
  
      op.rename_table(
          'routes',
          'subnetroutes',
      )
      op.create_table(
          'routerroutes',
          sa.Column('destination', sa.String(length=64), nullable=False),
          sa.Column(
              'nexthop', sa.String(length=64), nullable=False),
          sa.Column('router_id', sa.String(length=36), nullable=False),
          sa.ForeignKeyConstraint(
              ['router_id'], ['routers.id'], ondelete='CASCADE'),
          sa.PrimaryKeyConstraint('destination', 'nexthop', 'router_id')
      )
  
  
  def downgrade(active_plugin=None, options=None):
      if not migration.should_run(active_plugin, migration_for_plugins):
          return
  
      op.rename_table(
          'subnetroutes',
          'routes',
      )
      op.drop_table('routerroutes')
  
new_contents: # vim: tabstop=4 shiftwidth=4 softtabstop=4
  #
  # Copyright 2013 OpenStack Foundation
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  #
  
  """Support routing table configuration on Router
  
  Revision ID: 1c33fa3cd1a1
  Revises: 45680af419f9
  Create Date: 2013-01-17 14:35:09.386975
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '1c33fa3cd1a1'
  down_revision = '45680af419f9'
  
  # Change to ['*'] if this migration applies to all plugins
  
  migration_for_plugins = [
      'neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2',
      'neutron.plugins.linuxbridge.lb_neutron_plugin.LinuxBridgePluginV2',
      'neutron.plugins.nec.nec_plugin.NECPluginV2',
      'neutron.plugins.ryu.ryu_neutron_plugin.RyuNeutronPluginV2',
      'neutron.plugins.metaplugin.meta_neutron_plugin.MetaPluginV2'
  ]
  
  from alembic import op
  import sqlalchemy as sa
  
  from neutron.db import migration
  
  
  def upgrade(active_plugin=None, options=None):
      if not migration.should_run(active_plugin, migration_for_plugins):
          return
  
      op.rename_table(
          'routes',
          'subnetroutes',
      )
      op.create_table(
          'routerroutes',
          sa.Column('destination', sa.String(length=64), nullable=False),
          sa.Column(
              'nexthop', sa.String(length=64), nullable=False),
          sa.Column('router_id', sa.String(length=36), nullable=False),
          sa.ForeignKeyConstraint(
              ['router_id'], ['routers.id'], ondelete='CASCADE'),
          sa.PrimaryKeyConstraint('destination', 'nexthop', 'router_id')
      )
  
  
  def downgrade(active_plugin=None, options=None):
      if not migration.should_run(active_plugin, migration_for_plugins):
          return
  
      op.rename_table(
          'subnetroutes',
          'routes',
      )
      op.drop_table('routerroutes')
  
subject: Fix two typos in routing table configuration