"""empty message

Revision ID: abf60427ff84
Revises: da9fd175af8c
Create Date: 2019-10-28 14:43:39.691313

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'abf60427ff84'
down_revision = 'da9fd175af8c'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('corpus_files', sa.Column('author', sa.String(length=64), nullable=True))
    op.add_column('corpus_files', sa.Column('publishing_year', sa.Integer(), nullable=True))
    op.add_column('corpus_files', sa.Column('title', sa.String(length=64), nullable=True))
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column('corpus_files', 'title')
    op.drop_column('corpus_files', 'publishing_year')
    op.drop_column('corpus_files', 'author')
    # ### end Alembic commands ###