"""empty message

Revision ID: 68772b6560c3
Revises: 49a42c69e523
Create Date: 2020-04-28 07:47:40.495698

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '68772b6560c3'
down_revision = '49a42c69e523'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('corpora', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column('corpora', 'last_edited_date')
    # ### end Alembic commands ###