"""add_gras_campaign

Revision ID: f84a6abc81ea
Revises: 758083f8e0a3
Create Date: 2020-09-07 08:48:32.325903

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'f84a6abc81ea'
down_revision = '758083f8e0a3'
branch_labels = None
depends_on = None


def upgrade():
    op.alter_column('Campaign', 'project_id', nullable=True)
    op.add_column('Campaign', sa.Column('external_id', sa.String(), nullable=True))
    op.create_unique_constraint('uq_Campaign_external_id', 'Campaign', ['external_id'])

    op.alter_column('Campaign', 'edit_user_id', nullable=True)
    op.alter_column('Campaign', 'create_user_id', nullable=True)
    op.create_table('GRASProjectCampaign',
        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False, primary_key=True),
        sa.Column('gras_project_id', sa.BigInteger(), nullable=False),
        sa.Column('campaign_id', sa.BigInteger(), nullable=False),
        sa.Column('status', sa.Integer(), nullable=False, server_default="0")
    )

    op.create_foreign_key(op.f('fk_GRASProjectCampaign_gras_project_id_Project'), 'GRASProjectCampaign', 'Project', ['gras_project_id'], ['id'])
    op.create_foreign_key(op.f('fk_GRASProjectCampaign_campaign_id_Campaign'), 'GRASProjectCampaign', 'Campaign', ['campaign_id'], ['id'])


def downgrade():
    op.alter_column('Campaign', 'project_id', nullable=False)
    op.drop_table('GRASProjectCampaign')