"""Store the milestone keys

Revision ID: 2fb229dac744

Revises: e4dbfcd20f42

Create Date: 2017-10-31 13:03:10.767348

"""

# revision identifiers, used by Alembic.

revision = '2fb229dac744'

down_revision = 'e4dbfcd20f42'

from alembic import op

import sqlalchemy as sa

def upgrade():

    ''' Add the column _milestones_keys to the table projects.

    '''

    op.add_column(

        'projects',

        sa.Column('_milestones_keys', sa.Text, nullable=True)

    )

def downgrade():

    ''' Drop the column _milestones_keys from the table projects.

    '''

    op.drop_column('projects', '_milestones_keys')