"""

Revision ID: 0121_nullable_logos
Revises: 0120_add_org_banner_branding
Create Date: 2017-09-20 11:00:20.415523

"""
from alembic import op
import sqlalchemy as sa


revision = '0121_nullable_logos'
down_revision = '0120_add_org_banner_branding'


def upgrade():
    op.alter_column(
        'organisation', 'logo',
        existing_type=sa.VARCHAR(length=255),
        nullable=True
    )


def downgrade():
    pass