migrations/versions/5b9f83cede65_.py
"""empty message
Revision ID: 5b9f83cede65
Revises: 4591885edbf0
Create Date: 2018-04-18 17:55:43.266248
"""
from alembic import op
import sqlalchemy as sa
import sqlalchemy_utils
# revision identifiers, used by Alembic.
revision = '5b9f83cede65'
down_revision = '4591885edbf0'
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.alter_column('ticket_holders', 'pdf_url',
existing_type=sa.VARCHAR(),
nullable=True)
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.alter_column('ticket_holders', 'pdf_url',
existing_type=sa.VARCHAR(),
nullable=False)
# ### end Alembic commands ###