---------
models.py
---------
.
.
.
class MyModel(TraceableModel):
    title = models.CharField(max_length=256)
    duration = models.IntegerField()
.
.
.

--------
views.py
--------
def my_method(request):
.
.
.
request_params = dict([k, v] for k, v in request.POST.items())
request_params.update({'created_by': request.user.id})
.
.
.

This way you can access to django admin an see Admin > Log Entries