"""add_special_fields_to_course

Revision ID: 5e8710efe875
Revises: 031c468efda2
Create Date: 2026-03-17 04:53:07.501528

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = '5e8710efe875'
down_revision: Union[str, None] = '031c468efda2'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('course', sa.Column('special_amount', sa.Float(), nullable=True))
    op.add_column('course', sa.Column('special_startdate', sa.DateTime(), nullable=True))
    op.add_column('course', sa.Column('special_enddate', sa.DateTime(), nullable=True))
    op.alter_column('participants', 'post_code',
               existing_type=sa.INTEGER(),
               type_=sa.String(length=255),
               existing_nullable=True)
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.alter_column('participants', 'post_code',
               existing_type=sa.String(length=255),
               type_=sa.INTEGER(),
               existing_nullable=True)
    op.drop_column('course', 'special_enddate')
    op.drop_column('course', 'special_startdate')
    op.drop_column('course', 'special_amount')
    # ### end Alembic commands ###