"""Add region_id to regions

Revision ID: d58e3582afa9
Revises: 0d222ac90763
Create Date: 2025-07-21 11:24:53.122467

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

revision = 'd58e3582afa9'
down_revision = '0d222ac90763'
branch_labels = None
depends_on = None

def upgrade():
    op.add_column('regions', sa.Column('region_id', sa.Integer(), nullable=True))
    op.create_foreign_key('regions_id_fkey', 'regions', 'regions', ['region_id'], ['id'])

def downgrade():
    op.drop_constraint('regions_id_fkey', 'regions', type_='foreignkey')
    op.drop_column('regions', 'region_id')