"""empty message Revision ID: dabd7ab14339 Revises: aa53b4d36c50 Create Date: 2023-04-15 01:18:53.212673 """ from alembic import op import sqlalchemy as sa from sqlalchemy.dialects import postgresql # revision identifiers, used by Alembic. revision = 'dabd7ab14339' down_revision = 'aa53b4d36c50' branch_labels = None depends_on = None def upgrade(): op.add_column('package_review', sa.Column('rating', sa.Integer(), nullable=True)) op.execute(""" UPDATE package_review SET rating = CASE WHEN recommends THEN 5 ELSE 1 END; """) op.drop_column('package_review', 'recommends') op.alter_column('package_review', 'rating', nullable=False) def downgrade(): op.add_column('package_review', sa.Column('recommends', sa.BOOLEAN(), autoincrement=False, nullable=True)) op.execute(""" UPDATE package_review SET recommends = rating >= 3; """) op.drop_column('package_review', 'rating') op.alter_column('package_review', 'recommends', nullable=False)