CODEWITHSUNDEEP
pythondjango
JD Yang
JD Yang

Reputation: 371

django: assign None value if not existed in QueryDict

I'm looking for a better way to code:

My Code is,

@login_required 
def updateEmInfo(request):        
    userProfile = request.user.get_profile()
    if request.POST.__contains__('userType'):
        userType = request.POST['userType']
    else:
        userType = None

    if request.method == 'POST':
         ~~~~~~~~

If I code as userType = request.POST['userType'], then I get an error if userType is not equal.

I don't think it is good idea to to use the __contains__ method, is there a better way to write this code?

Something easy like the following

userType = request.POST['userType'] ? request.POST['userType'] : None

Upvotes: 4

Views: 2703

Answers (2)

dm03514
dm03514

Reputation: 55942

you can use get

request.POST.get('userType')

get(key[, default]) Return the value for key if key is in the dictionary, else default. If default is not given, it defaults to None, so that this method never raises a KeyError

.

Upvotes: 4

Jesse the Game
Jesse the Game

Reputation: 2630

You can use:

userType = request.POST.get('userType', None)

This would be roughly equivalent to:

try:
    userType = request.POST['userType']
except KeyError:
    userType = None

Upvotes: 3

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