Delivery Price Product Domain

This module adds a new field called "Apply to products" on each line of a delivery carrier's pricing rules. You fill it in with a product filter (the same kind of filter used elsewhere in Odoo, for example "only storable and consumable products").

When Odoo computes the shipping cost of a sales order, it now looks at that filter. Only the order lines whose product matches the filter are used to build the totals (price, weight, volume, quantity and untaxed amount) that the pricing rule checks. Lines that do not match are removed from those totals, so a rule based on order price, weight or quantity will only react to the products you selected.

• The filter is entered directly on the delivery price rule form, in a new group at the top.
• If a rule has no filter, the module falls back to the standard Odoo calculation.
• The free-shipping threshold and the rule matching logic still work as before, but on the filtered totals.
• Delivery lines themselves are excluded from weight, volume and quantity, as in standard Odoo.

It touches the delivery carrier and delivery price rule models, and the sales order lines used to compute the shipping price. No new menus or reports are added.