"""spool weights.

Revision ID: aafcd7fb0e84
Revises: b8881bdb716c
Create Date: 2024-03-26 09:48:09.930022
"""
import sqlalchemy as sa
from alembic import op

# revision identifiers, used by Alembic.
revision = 'aafcd7fb0e84'
down_revision = 'b8881bdb716c'
branch_labels = None
depends_on = None


def upgrade() -> None:
    """Perform the upgrade."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('spool', sa.Column('initial_weight', sa.Float(), nullable=True, comment="The initial total weight of the spool (gross weight)."))
    op.add_column('spool', sa.Column('empty_weight', sa.Float(), nullable=True, comment="The weight of the empty spool (tare weight)."))
    # ### end Alembic commands ###


def downgrade() -> None:
    """Perform the downgrade."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column('spool', 'empty_weight')
    op.drop_column('spool', 'initial_weight')
    # ### end Alembic commands ###