"""Initial migration: Ufora announcements

Revision ID: 9e8ce58c0a26
Revises: 
Create Date: 2022-06-17 01:36:02.767151

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '9e8ce58c0a26'
down_revision = None
branch_labels = None
depends_on = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('ufora_courses',
    sa.Column('course_id', sa.Integer(), nullable=False),
    sa.Column('name', sa.Text(), nullable=False),
    sa.Column('code', sa.Text(), nullable=False),
    sa.Column('year', sa.Integer(), nullable=False),
    sa.PrimaryKeyConstraint('course_id'),
    sa.UniqueConstraint('code'),
    sa.UniqueConstraint('name')
    )
    op.create_table('ufora_announcements',
    sa.Column('announcement_id', sa.Integer(), nullable=False),
    sa.Column('course_id', sa.Integer(), nullable=True),
    sa.ForeignKeyConstraint(['course_id'], ['ufora_courses.course_id'], ),
    sa.PrimaryKeyConstraint('announcement_id')
    )
    op.create_table('ufora_course_aliases',
    sa.Column('alias_id', sa.Integer(), nullable=False),
    sa.Column('alias', sa.Text(), nullable=False),
    sa.Column('course_id', sa.Integer(), nullable=True),
    sa.ForeignKeyConstraint(['course_id'], ['ufora_courses.course_id'], ),
    sa.PrimaryKeyConstraint('alias_id'),
    sa.UniqueConstraint('alias')
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_table('ufora_course_aliases')
    op.drop_table('ufora_announcements')
    op.drop_table('ufora_courses')
    # ### end Alembic commands ###