web_action_conditionable

This module changes how embedded lists inside a form behave. In Odoo, a one-to-many field (for example, the order lines inside a sales order) is shown as a small list with an "Add a line" button and a delete option. Normally those buttons are always available, or controlled only by access rights.

With this module, a developer can put a condition on the list definition itself, and the buttons appear or disappear automatically as the user changes the form. For example, the Add a line button can be hidden once a certain status is reached, or the delete option can be disabled when a field on the parent record has a particular value.

The condition is evaluated in the browser each time the list is displayed, using the current values of the record. If the condition cannot be understood, the module simply ignores it and writes a warning in the browser console instead of breaking the screen.

It only affects lists shown in edit mode; read-only lists are not changed. It does not add menus, reports, scheduled jobs or database fields. It works together with the standard web client and the base module.