"""add attachment table

Revision ID: d7db8fd35b41
Revises: 0845b2f0f401
Create Date: 2018-08-24 11:27:15.317181

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'd7db8fd35b41'
down_revision = '0845b2f0f401'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('attachments',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('filename', sa.String(), nullable=True),
    sa.Column('object_name', sa.String(), nullable=True),
    sa.PrimaryKeyConstraint('id'),
    sa.UniqueConstraint('object_name')
    )
    op.create_unique_constraint(None, 'task_order', ['number'])
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint(None, 'task_order', type_='unique')
    op.drop_table('attachments')
    # ### end Alembic commands ###