"""empty message

Revision ID: aa6d21889d22
Revises: b254f55eadd2
Create Date: 2018-05-29 18:28:28.540416

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'aa6d21889d22'
down_revision = 'b254f55eadd2'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.alter_column('user', 'password',
               existing_type=sa.VARCHAR(length=255),
               nullable=True,
               existing_server_default=sa.text("''"))
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.alter_column('user', 'password',
               existing_type=sa.VARCHAR(length=255),
               nullable=False,
               existing_server_default=sa.text("''"))
    # ### end Alembic commands ###