"""make_campaign_end_date_nullable

Revision ID: cd934930f352
Revises: f84a6abc81ea
Create Date: 2020-09-08 13:11:48.047948

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'cd934930f352'
down_revision = 'f84a6abc81ea'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###

    op.alter_column('Campaign', 'end_date',
               existing_type=sa.DATE(),
               nullable=True)

    op.drop_constraint('fk_GRASProjectCampaign_gras_project_id_Project', 'GRASProjectCampaign', type_='foreignkey')
    op.drop_constraint('fk_GRASProjectCampaign_campaign_id_Campaign', 'GRASProjectCampaign', type_='foreignkey')
    op.create_foreign_key(op.f('fk_GRASProjectCampaign_gras_project_id_GRASProject'), 'GRASProjectCampaign', 'GRASProject', ['gras_project_id'], ['id'], ondelete='CASCADE')
    op.create_foreign_key(op.f('fk_GRASProjectCampaign_campaign_id_Campaign'), 'GRASProjectCampaign', 'Campaign', ['campaign_id'], ['id'], ondelete='CASCADE')

    op.alter_column('Label', 'external_name',
               existing_type=sa.VARCHAR(),
               nullable=False)

    op.get_bind().execute(f"""ALTER SEQUENCE "CampaignTypeValue_id_seq" RESTART WITH 203""")
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.alter_column('Label', 'external_name',
               existing_type=sa.VARCHAR(),
               nullable=True)
    op.drop_constraint(op.f('fk_GRASProjectCampaign_campaign_id_Campaign'), 'GRASProjectCampaign', type_='foreignkey')
    op.drop_constraint(op.f('fk_GRASProjectCampaign_gras_project_id_GRASProject'), 'GRASProjectCampaign', type_='foreignkey')
    op.create_foreign_key('fk_GRASProjectCampaign_campaign_id_Campaign', 'GRASProjectCampaign', 'Campaign', ['campaign_id'], ['id'])
    op.create_foreign_key('fk_GRASProjectCampaign_gras_project_id_Project', 'GRASProjectCampaign', 'Project', ['gras_project_id'], ['id'])

    op.alter_column('Campaign', 'end_date',
               existing_type=sa.DATE(),
               nullable=False)
    # ### end Alembic commands ###