new_contents: """empty message
  
  Revision ID: 0072_add_dvla_orgs
  Revises: 0071_add_job_error_state
  Create Date: 2017-04-19 15:25:45.155886
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '0072_add_dvla_orgs'
  down_revision = '0071_add_job_error_state'
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.create_table('dvla_organisation',
          sa.Column('id', sa.String(), nullable=False),
          sa.Column('name', sa.String(length=255), nullable=True),
          sa.PrimaryKeyConstraint('id')
      )
  
      # insert initial values - HMG and Land Reg
      op.execute("""
          INSERT INTO dvla_organisation VALUES
          ('001', 'HM Government'),
          ('500', 'Land Registry')
      """)
  
      op.add_column('services', sa.Column('dvla_organisation_id', sa.String(), nullable=True, server_default='001'))
      op.add_column('services_history', sa.Column('dvla_organisation_id', sa.String(), nullable=True, server_default='001'))
  
      # set everything to be HMG for now
      op.execute("UPDATE services SET dvla_organisation_id = '001'")
      op.execute("UPDATE services_history SET dvla_organisation_id = '001'")
  
      op.alter_column('services', 'dvla_organisation_id', nullable=False)
      op.alter_column('services_history', 'dvla_organisation_id', nullable=False)
  
      op.create_index(
          op.f('ix_services_dvla_organisation_id'),
          'services',
          ['dvla_organisation_id'],
          unique=False
      )
      op.create_index(
          op.f('ix_services_history_dvla_organisation_id'),
          'services_history',
          ['dvla_organisation_id'],
          unique=False
      )
  
      op.create_foreign_key(None, 'services', 'dvla_organisation', ['dvla_organisation_id'], ['id'])
  
  def downgrade():
      op.drop_column('services_history', 'dvla_organisation_id')
      op.drop_column('services', 'dvla_organisation_id')
      op.drop_table('dvla_organisation')
  
subject: Add DVLA org migration with default values