"""link controls with Bacterial Culture Samples

Revision ID: 2684f065037c
Revises: 7e7b6eeca468
Create Date: 2023-12-05 10:29:31.126732

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '2684f065037c'
down_revision = '7e7b6eeca468'
branch_labels = None
depends_on = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('_control_samples', schema=None) as batch_op:
        batch_op.add_column(sa.Column('sample_id', sa.INTEGER(), nullable=True))
        batch_op.create_foreign_key('cont_BCS_id', '_samples', ['sample_id'], ['id'], ondelete='SET NULL')

    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('_control_samples', schema=None) as batch_op:
        batch_op.drop_constraint('cont_BCS_id', type_='foreignkey')
        batch_op.drop_column('sample_id')

    # ### end Alembic commands ###