Issue & Reproduction Steps

The problem was produced because for the default value was used a JavaScript expression that didn't return any value. By default JavaScript returns "undefined".

Expected behavior:
Even if the the expression used for the default value of a select list is undefined, its value should be able to be set.

Actual behavior:
The select list variable with the undefined default value it is not updated when an item is selected.

Solution

If the JavaScript function returns undefined, by default the variable is initialized with a null value.

How to Test

Steps to Reproduce:

Create Screen

Add select list 1 with default values

[{"content":"1","value":"1"},{"content":"2","value":"2"}]

Put default value = 2

Add select list 2 with data connector

Put default value JS

if (this.form_select_list_2 != 2) {

return null;

}

Press preview button

Select an option in the second select list and verify that this 2nd dropdown variable update its corresponding variable.

Related Tickets & Packages

• https://processmaker.atlassian.net/browse/FOUR-5348

Code Review Checklist

• I have pulled this code locally and tested it on my instance, along with any associated packages.
• This code adheres to ProcessMaker Coding Guidelines.
• This code includes a unit test or an E2E test that tests its functionality, or is covered by an existing test.
• This solution fixes the bug reported in the original ticket.
• This solution does not alter the expected output of a component in a way that would break existing Processes.
• This solution does not implement any breaking changes that would invalidate documentation or cause existing Processes to fail.
• This solution has been tested with enterprise packages that rely on its functionality and does not introduce bugs in those packages.
• This code does not duplicate functionality that already exists in the framework or in ProcessMaker.
• This ticket conforms to the PRD associated with this part of ProcessMaker.