"""Add notifications to tickets

Revision ID: 22db0a833d35

Revises: 317a285e04a8

Create Date: 2016-06-27 16:10:33.395495

"""

# revision identifiers, used by Alembic.

revision = '22db0a833d35'

down_revision = '317a285e04a8'

from alembic import op

import sqlalchemy as sa

def upgrade():

    ''' Add the column notification to the table issue_comments.

    '''

    op.add_column(

        'issue_comments',

        sa.Column('notification', sa.Boolean, default=False, nullable=True)

    )

    op.execute('''UPDATE "issue_comments" SET notification=False;''')

    op.alter_column(

        'issue_comments', 'notification',

        nullable=False, existing_nullable=True)

def downgrade():

    ''' Remove the column notification from the table issue_comments.

    '''

    op.drop_column('issue_comments', 'notification')