Getting False value for a key in even when it is not present in the request


I have 2 radio buttons in the UI, one for setting a variable (ng-model) say selected as true (ng-value=true) and other one for setting it as false (ng-value=false). Now, when none of them is selected it results in the variable selected being absent from the outgoing request (as expected).

However, when that is dealt with Django Forms, the dictionary in the clean() method gives False on accessing'selected') /['selected'] why is that so? Shouldn’t it be None or at least give a key-error when it was not even present in the actual request?

Note that the variable ‘selected’ is actually a field in a Django Model with default=False, is that thing responsible for this behaviour? How can I circumvent this situation considering that altering the Django Model field isn’t an option?


So I dealt with it the other day by checking for the selected key in the raw request.body. Now, since its a string, I had to parse it to a dict and then access the mentioned key using :


In this way, if selected is not present at all when none of the radio buttons are selected, I get None. Similarly, if the radio button for ng-value=true is selected then I get True and vice-versa.

Answered By – Neeraj Kumar

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

Leave a Reply

(*) Required, Your email will not be published