Rendering failure when data record has a field called "results"

I have a record that has a field called "results" in it.

This results in an error in DatatablesRenderer object of type 'int' has no len().

Here is an example of the data that causes the problem going through the renderer:

GET /api/optimizers/198/

HTTP 200 OK Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS Content-Type: application/json Vary: Accept

{ "rundatetime": "2020-04-02T18:08:44.574532-04:00", "startdate": "2005-01-03", "enddate": "2020-04-01", "optrange": "(5,250) (5,250)", "results": 60025, "runtime": 2130, "optimizeresults": [ {

the problem is that this field is triggering a reference using the same name in the code (stating line 22 in renderers.py):

    if 'recordsTotal' not in data:
        # pagination was not used, let's fix the data dict
        if 'results' in data:
            results = data['results']
            try:
                **count = data['count'] if 'count' in data else len(results)**
            except:
                count = results
        else:
            results = data
            count = len(results)
        new_data['data'] = results

the logic is picking up the record "results" reference and causes the exception. Here is a local variable capture of with an assert just before line 25 when the exception occurs:

new_data {} renderer_context {'args': (), 'kwargs': {'pk': '198'}, 'request': <rest_framework.request.Request object at 0x7f31d6b09048>, 'response': <Response status_code=200, "application/json">, 'view': <portfolio.views.optimize.OptimizeViewSet object at 0x7f31d6b01f28>} request <rest_framework.request.Request object at 0x7f31d6b09048> results 60025 self <rest_framework_datatables_editor.renderers.DatatablesRenderer object at 0x7f31d6b09438> view <portfolio.views.optimize.OptimizeViewSet object at 0x7f31d6b01f28>

The results variable at this point is the record field "results" (integer value 60025) not the expected record list in the code.

There needs to be a context check that the "results" data entry retrieved is not part of the data record being transferred.

vertliba / django-rest-framework-datatables-editor

Rendering failure when data record has a field called "results" #8