old_contents: # 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.
  #
  
  """Remove cisco_vlan_bindings table
  
  Revision ID: b7a8863760e
  Revises: 3cabb850f4a5
  Create Date: 2013-07-03 19:15:19.143175
  
  """
  
  # revision identifiers, used by Alembic.
  revision = 'b7a8863760e'
  down_revision = '3cabb850f4a5'
  
  # Change to ['*'] if this migration applies to all plugins
  
  migration_for_plugins = [
      'neutron.plugins.cisco.network_plugin.PluginV2'
  ]
  
  from alembic import op
  import sqlalchemy as sa
  
  
  from neutron.db import migration
  
  
  def upgrade(active_plugins=None, options=None):
      if not migration.should_run(active_plugins, migration_for_plugins):
          return
  
      op.drop_table('cisco_vlan_bindings')
  
  
  def downgrade(active_plugins=None, options=None):
      if not migration.should_run(active_plugins, migration_for_plugins):
          return
  
      op.create_table(
          'cisco_vlan_bindings',
          sa.Column('vlan_id', sa.Integer(display_width=11), nullable=False),
          sa.Column('vlan_name', sa.String(length=255), nullable=True),
          sa.Column('network_id', sa.String(length=255), nullable=False),
          sa.PrimaryKeyConstraint('vlan_id')
      )
  
new_contents: # 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.
  #
  
  """Remove cisco_vlan_bindings table
  
  Revision ID: b7a8863760e
  Revises: 3cabb850f4a5
  Create Date: 2013-07-03 19:15:19.143175
  
  """
  
  # revision identifiers, used by Alembic.
  revision = 'b7a8863760e'
  down_revision = '3cabb850f4a5'
  
  # Change to ['*'] if this migration applies to all plugins
  
  migration_for_plugins = [
      'neutron.plugins.cisco.network_plugin.PluginV2'
  ]
  
  from alembic import op
  import sqlalchemy as sa
  
  
  from neutron.db import migration
  
  
  def upgrade(active_plugins=None, options=None):
      if not migration.should_run(active_plugins, migration_for_plugins):
          return
  
      op.drop_table('cisco_vlan_bindings')
  
  
  def downgrade(active_plugins=None, options=None):
      if not migration.should_run(active_plugins, migration_for_plugins):
          return
  
      op.create_table(
          'cisco_vlan_bindings',
          sa.Column('vlan_id', sa.Integer(), nullable=False),
          sa.Column('vlan_name', sa.String(length=255), nullable=True),
          sa.Column('network_id', sa.String(length=255), nullable=False),
          sa.PrimaryKeyConstraint('vlan_id')
      )
  
subject: Fix incorrect downgrade