old_contents: """empty message
  
  Revision ID: 0003_add_service_history
  Revises: 0002_add_content_char_count
  Create Date: 2016-04-19 13:01:54.519821
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '0003_add_service_history'
  down_revision = '0002_add_content_char_count'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import postgresql
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.create_table('services_history',
      sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
      sa.Column('name', sa.String(length=255), nullable=False),
      sa.Column('created_at', sa.DateTime(), nullable=False),
      sa.Column('updated_at', sa.DateTime(), nullable=True),
      sa.Column('active', sa.Boolean(), nullable=False),
      sa.Column('message_limit', sa.BigInteger(), nullable=False),
      sa.Column('restricted', sa.Boolean(), nullable=False),
      sa.Column('email_from', sa.Text(), nullable=False),
      sa.Column('created_by_id', postgresql.UUID(as_uuid=True), nullable=False),
      sa.Column('version', sa.Integer(), autoincrement=False, nullable=False),
      sa.PrimaryKeyConstraint('id', 'version')
      )
      op.create_index(op.f('ix_services_history_created_by_id'), 'services_history', ['created_by_id'], unique=False)
      op.add_column('services', sa.Column('created_by_id', postgresql.UUID(as_uuid=True), nullable=True))
      op.add_column('services', sa.Column('version', sa.Integer(), nullable=True))
      op.create_index(op.f('ix_services_created_by_id'), 'services', ['created_by_id'], unique=False)
      op.create_foreign_key(None, 'services', 'users', ['created_by_id'], ['id'])
  
      op.get_bind()
      op.execute('UPDATE services SET created_by_id = (SELECT user_id FROM user_to_service WHERE services.id = user_to_service.service_id LIMIT 1)')
      op.execute('UPDATE services SET version = 1')
      op.execute('INSERT INTO services_history SELECT * FROM services')
  
      op.alter_column('services', 'created_by_id', nullable=False)
      op.alter_column('services', 'version', nullable=False)
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_constraint(None, 'services', type_='foreignkey')
      op.drop_index(op.f('ix_services_created_by_id'), table_name='services')
      op.drop_column('services', 'version')
      op.drop_column('services', 'created_by_id')
      op.drop_index(op.f('ix_services_history_created_by_id'), table_name='services_history')
      op.drop_table('services_history')
      ### end Alembic commands ###
  
new_contents: """empty message
  
  Revision ID: 0003_add_service_history
  Revises: 0002_add_content_char_count
  Create Date: 2016-04-19 13:01:54.519821
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '0003_add_service_history'
  down_revision = '0002_add_content_char_count'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import postgresql
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.create_table('services_history',
      sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
      sa.Column('name', sa.String(length=255), nullable=False),
      sa.Column('created_at', sa.DateTime(), nullable=False),
      sa.Column('updated_at', sa.DateTime(), nullable=True),
      sa.Column('active', sa.Boolean(), nullable=False),
      sa.Column('message_limit', sa.BigInteger(), nullable=False),
      sa.Column('restricted', sa.Boolean(), nullable=False),
      sa.Column('email_from', sa.Text(), nullable=False),
      sa.Column('created_by_id', postgresql.UUID(as_uuid=True), nullable=False),
      sa.Column('version', sa.Integer(), autoincrement=False, nullable=False),
      sa.PrimaryKeyConstraint('id', 'version')
      )
      op.create_index(op.f('ix_services_history_created_by_id'), 'services_history', ['created_by_id'], unique=False)
      op.add_column('services', sa.Column('created_by_id', postgresql.UUID(as_uuid=True), nullable=True))
      op.add_column('services', sa.Column('version', sa.Integer(), nullable=True))
      op.create_index(op.f('ix_services_created_by_id'), 'services', ['created_by_id'], unique=False)
      op.create_foreign_key('fk_services_created_by_id', 'services', 'users', ['created_by_id'], ['id'])
  
      op.get_bind()
      op.execute('UPDATE services SET created_by_id = (SELECT user_id FROM user_to_service WHERE services.id = user_to_service.service_id LIMIT 1)')
      op.execute('UPDATE services SET version = 1')
      op.execute('INSERT INTO services_history SELECT * FROM services')
  
      op.alter_column('services', 'created_by_id', nullable=False)
      op.alter_column('services', 'version', nullable=False)
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_constraint('fk_services_created_by_id', 'services', type_='foreignkey')
      op.drop_index(op.f('ix_services_created_by_id'), table_name='services')
      op.drop_column('services', 'version')
      op.drop_column('services', 'created_by_id')
      op.drop_index(op.f('ix_services_history_created_by_id'), table_name='services_history')
      op.drop_table('services_history')
      ### end Alembic commands ###
  
subject: Fix migration downgrade