Pre-Process Script (NodeJS) Processes Content Block instead of Resource Block

[darkpoetcc]

According to the documentation (http://wiki.dreamfactory.com/DreamFactory/Tutorials/V8_field_scrambling), I can modify data before it hits an API / Database, such as scrubbing SSN numbers, by using a Pre-Process server-side script. However, no matter what I do in a Pre-Process script, the script never does what it should (a small sample is below). Per the documentation, I should modify the payload's resource records; however, the only way I can get things working is to modify the request's content value. Below, this is all documented.

if (event.request.payload.resource) { 

    // Go through each record and modify appropriately
    if (event.request.payload.resource.length  && event.request.payload.resource.length >= 1) {
        event.request.payload.resource.forEach((record, idx) => {

            // Placeholder for the actual request detail
            let request = {};

            // Pull data from the API request and format appropriately
            request.JO = record.so.jobOrder;
            request.PanelNo = record.ps.panelNo;

            // This reassignment works, as I see it correct in the below console.log statements
            event.request.payload.resource[idx] = request;
            console.log(record);
            console.log(event.request.payload);
        });
    }
}

According to console.log, here is what I now have:

{
  resource: [
    {
      JO: '2',
      PanelNo: '4',
      DR: '5',
      FK_WorkStatusId: 200
    }
  ]
}

However, according to the error I get back from the DreamFactory API when trying to post, this is not what the data looks like at all:

{
    "error": {
        "code": 1000,
        "context": {
            "error": [
                0
            ],
            "resource": [
                {
                    "code": 400,
                    "context": null,
                    "message": "Required field 'fk_workstatusid' can not be NULL.",
                    "status_code": 400
                }
            ]
        },
        "message": "Batch Error: Not all requested records could be created.",
        "status_code": 500
    }
}

In order to get this feature to work, I have to modify not according to existing DreamFactory documentation, but per my own discovery. For instance, this works:

    // Above I made all of the changes to data I needed to, as my earlier example
    event.request.content = JSON.stringify(event.request.payload.resource);

    // Not having the `event.request.payload.resource` object means nothing for the call to succeed
    // Leaving this to the modified values, deleting the value, or anything in between seems to have no effect on the final operations
    event.request.payload.resource = null;

Either this feature has changed, or there is a bug. Considering I have to take the records of the incoming request payload's resource, modify them, convert them to a string, and then shove them two layers shallower to get the intended effects, I believe something is buggy with this behavior in 3.0.1.