| 1234567891011121314151617181920212223242526 |
- """page_add_parent
- Revision ID: b87f52d28bb9
- Revises: 476b167aef80
- Create Date: 2019-02-19 22:38:47.415942
- """
- from alembic import op
- import sqlalchemy as sa
- # revision identifiers, used by Alembic.
- revision = 'b87f52d28bb9'
- down_revision = '476b167aef80'
- branch_labels = None
- depends_on = None
- def upgrade():
- op.add_column('page', sa.Column('parent_id', sa.Integer(), nullable=True))
- op.create_foreign_key(None, 'page', 'page', ['parent_id'], ['id'])
- def downgrade():
- op.drop_constraint(None, 'page', type_='foreignkey')
- op.drop_column('page', 'parent_id')
|
