multivaluedictkeyerror at /patient/login/

How to fix the Python multivaluedictkeyerror error?

on How to fix the Python Django MultiValueDictKeyError error? To fix the Python Django MultiValueDictKeyError error, we use the dictionary get method to get the dict value and return a default if the dict key doesn’t exist. to call get on request.POST to get the is_private dict value from the POST request payload.

What is the multivaluedictkeyerror exception in Django?

The MultiValueDictKeyError is the basic and most common error which pop-ups when a beginner django developer starts using forms to upload data. I will keep the things as simple as possible (as i always do) and try to explain that how can you fix the MultiValueDictKeyError exception in django.

How to get the value of a multivaluedict?

Use the MultiValueDict's get method. This is also present on standard dicts and is a way to fetch a value while providing a default if it does not exist. It is the correct behaviour.. checkbox send checked when is checked but will send null if not checked. You can check this in the Chrome/Firefox DEV tool's "Network" panel.

Check if Key Exists Before Accessing

Use the in operator to check whether the dictionary object has the particular key or not.

Use the get () Method with a Default Value

Use the dict.get('key', 'default') method by providing the default value. This default value will be returned if the specificed key does not exist in the MultiValueDict object.

pinae commented on Apr 17, 2014

I traced the problem to the user controller. $scope.username and $scope.password are empty in FF. It seems as if the angular data binding stopped working.

pinae commented on Apr 17, 2014

I can solve the problem by assigning an ID to the input fields and reading the value prior to the login call. But I suspect this is a somehow dirty hack because it bypasses angular. The question is: why does angular fail to update the scope in this particular usecase?

Qwlouse commented on Apr 18, 2014

Seems to be due to autofill of firefox which does not trigger an event.