"""add_deletion_rule_for_project_targets

Revision ID: 9a8e077faa89
Revises: 6d75b6857ce5
Create Date: 2020-06-03 09:14:50.758360

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '9a8e077faa89'
down_revision = '6d75b6857ce5'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint('fk_ProjectTargetItem_project_id_Project', 'ProjectTargetItem', type_='foreignkey')
    op.drop_constraint('fk_ProjectTargetItem_target_item_id_Polymorphable', 'ProjectTargetItem', type_='foreignkey')
    op.create_foreign_key(op.f('fk_ProjectTargetItem_target_item_id_Polymorphable'), 'ProjectTargetItem', 'Polymorphable', ['target_item_id'], ['id'], ondelete='CASCADE')
    op.create_foreign_key(op.f('fk_ProjectTargetItem_project_id_Project'), 'ProjectTargetItem', 'Project', ['project_id'], ['id'], ondelete='CASCADE')
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint(op.f('fk_ProjectTargetItem_project_id_Project'), 'ProjectTargetItem', type_='foreignkey')
    op.drop_constraint(op.f('fk_ProjectTargetItem_target_item_id_Polymorphable'), 'ProjectTargetItem', type_='foreignkey')
    op.create_foreign_key('fk_ProjectTargetItem_target_item_id_Polymorphable', 'ProjectTargetItem', 'Polymorphable', ['target_item_id'], ['id'])
    op.create_foreign_key('fk_ProjectTargetItem_project_id_Project', 'ProjectTargetItem', 'Project', ['project_id'], ['id'])
    # ### end Alembic commands ###