text: # Copyright 2015 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.
  #
  
  from alembic import op
  import sqlalchemy as sa
  
  """neutrodb_ipam
  
  Revision ID: 599c6a226151
  Revises: 354db87e3225
  Create Date: 2015-03-08 18:12:08.962378
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '599c6a226151'
  down_revision = '354db87e3225'
  
  
  def upgrade():
      op.create_table(
          'ipamsubnets',
          sa.Column('id', sa.String(length=36), nullable=False),
          sa.Column('neutron_subnet_id', sa.String(length=36), nullable=True),
          sa.PrimaryKeyConstraint('id'))
  
      op.create_table(
          'ipamallocations',
          sa.Column('ip_address', sa.String(length=64), nullable=False),
          sa.Column('status', sa.String(length=36), nullable=True),
          sa.Column('ipam_subnet_id', sa.String(length=36), nullable=False),
          sa.ForeignKeyConstraint(['ipam_subnet_id'],
                                  ['ipamsubnets.id'],
                                  ondelete='CASCADE'),
          sa.PrimaryKeyConstraint('ip_address', 'ipam_subnet_id'))
  
      op.create_table(
          'ipamallocationpools',
          sa.Column('id', sa.String(length=36), nullable=False),
          sa.Column('ipam_subnet_id', sa.String(length=36), nullable=False),
          sa.Column('first_ip', sa.String(length=64), nullable=False),
          sa.Column('last_ip', sa.String(length=64), nullable=False),
          sa.ForeignKeyConstraint(['ipam_subnet_id'],
                                  ['ipamsubnets.id'],
                                  ondelete='CASCADE'),
          sa.PrimaryKeyConstraint('id'))
  
      op.create_table(
          'ipamavailabilityranges',
          sa.Column('allocation_pool_id', sa.String(length=36), nullable=False),
          sa.Column('first_ip', sa.String(length=64), nullable=False),
          sa.Column('last_ip', sa.String(length=64), nullable=False),
          sa.ForeignKeyConstraint(['allocation_pool_id'],
                                  ['ipamallocationpools.id'],
                                  ondelete='CASCADE'),
          sa.PrimaryKeyConstraint('allocation_pool_id', 'first_ip', 'last_ip'),
          sa.Index('ix_ipamavailabilityranges_first_ip_allocation_pool_id',
                   'first_ip', 'allocation_pool_id'),
          sa.Index('ix_ipamavailabilityranges_last_ip_allocation_pool_id',
                   'last_ip', 'allocation_pool_id'))
  