Added empty spool weight as an option field for the vendor

migrations/versions/2024_03_26_1507-5f069e51bd89_vendor_empty_spool_weight.py

@@ -0,0 +1,31 @@
+"""vendor empty spool weight.
+
+Revision ID: 5f069e51bd89
+Revises: 304a32906234
+Create Date: 2024-03-26 15:07:18.366290
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "5f069e51bd89"
+down_revision = "304a32906234"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    """Perform the upgrade."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column(
+        "vendor",
+        sa.Column("empty_spool_weight", sa.Float(), nullable=True, comment="The weight of an empty spool."),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Perform the downgrade."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column("vendor", "empty_spool_weight")
+    # ### end Alembic commands ###