Added initial_weight and empty_weight to spool

migrations/versions/2024_03_26_0948-aafcd7fb0e84_spool_weights.py

@@ -0,0 +1,30 @@
+"""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 ###