| 123456789101112131415161718192021222324252627282930 | """state_to_regionRevision ID: 661865b159c9Revises: 376b13137050Create Date: 2019-10-17 23:11:16.074823"""from alembic import opimport sqlalchemy as sa# revision identifiers, used by Alembic.revision = '661865b159c9'down_revision = '376b13137050'branch_labels = Nonedepends_on = Nonedef upgrade():    op.add_column('state_market_stat', sa.Column('region_id', sa.Integer(), nullable=True))    op.drop_constraint('fk_state_market_stat_state_id_state', 'state_market_stat', type_='foreignkey')    op.create_foreign_key(op.f('fk_state_market_stat_region_id_region'), 'state_market_stat', 'region', ['region_id'], ['id'])    op.drop_column('state_market_stat', 'state_id')def downgrade():    op.add_column('state_market_stat', sa.Column('state_id', sa.INTEGER(), autoincrement=False, nullable=True))    op.drop_constraint(op.f('fk_state_market_stat_region_id_region'), 'state_market_stat', type_='foreignkey')    op.create_foreign_key('fk_state_market_stat_state_id_state', 'state_market_stat', 'state', ['state_id'], ['id'])    op.drop_column('state_market_stat', 'region_id')
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