Issue & Reproduction Steps

1. Create Screen

2. Add loop with this configuration:

3. Add a line input inside a loop

4. Create a calc with the next code:

5. Press preview button

6. Put the following JSON in data input:

{
    "loop_1": [
      {
        "form_input_1": "2473"
      }
    ]
}

7. Try to add a new record in a loop

Expected behavior:
By clicking the "+" or "Add Row" button in the loop, an additional line input would be added.

Actual behavior:
Clicking the "+" does nothing in the current configuration but changing the data input does allow another line input to be added.

Solution

• The get() method logic used by the Proxy object in the calculated property needed adjusting to properly return the desired data (if any) within src/mixins/computedProperties.js.

How to Test

You should be able to follow the repoduction steps after this PR and successfully add rows by using the "+" or "Add Row" button to the loop. Same goes for the "-" or "Delete Row" button.

Related Tickets & Packages

• Ticket FOUR-5139
• The edits I've made here build on changes @nolanpro and I made in a previous PR. I re-tested with that PR's reproduction steps and everything worked successfully. This PR references ticket FOUR-2797.

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.