"""empty message Revision ID: bbedc353f90c Revises: d67eab226ecd Create Date: 2021-10-26 12:05:38.840492 """ import sqlalchemy_utils from alembic import op import sqlalchemy as sa # revision identifiers, used by Alembic. revision = 'bbedc353f90c' down_revision = 'd67eab226ecd' branch_labels = None depends_on = None def upgrade(): # ### commands auto generated by Alembic - please adjust! ### op.drop_constraint('client_referral_id_fkey', 'client', type_='foreignkey') op.create_foreign_key(None, 'client', 'referral', ['referral_id'], ['id'], ondelete='SET NULL') # ### end Alembic commands ### def downgrade(): # ### commands auto generated by Alembic - please adjust! ### op.drop_constraint(None, 'client', type_='foreignkey') op.create_foreign_key('client_referral_id_fkey', 'client', 'referral', ['referral_id'], ['id']) # ### end Alembic commands ###