(Developer and Platinum versions of the plugin)
The Server Side Equations add-on allows to define equations in the server side to protect the business logic, and call them with AJAX from the public form.
The add-on includes a new Module in the list of possible operations, for calling the server side equations.Documentation
Easy to activate
To activate the add-on, simply visit the plugin page via the menu option: "Settings/Calculated Fields Form", tick the checkbox: "CFF-Server Side Equations", and press the "Activate/Deactivate Addons" button.
Defining the server side equations
The add-on includes a new section in the settings page of the plugin where define the equations (however it is possible to define the equations directly through the equations file)
The add-on includes a new module, accessible from the properties of the calculated fields for calling the server side equations.
Form settings section, to allow calculate the final price using a server side equation after the form be submitted.