CODEWITHSUNDEEP
pythondjangodjango-models
Karnivaurus
Karnivaurus

Reputation: 24121

Error: no attribute '_state'

I have a model:

class User(models.Model):

    user_id = models.IntegerField(default=0)
    user_name = models.CharField(max_length=20)
    user_age = models.IntegerField(default=0)

    def __init__(self, user_id, user_name, user_age):
        self.user_id = user_id
        self.user_name = user_name
        self.user_age = user_age

And then I try to create an instance of this model:

new_user = User(0, 'Andrew', 25)
new_user.save()

But this gives me the error:

'User' object has no attribute '_state'

What does this mean?

Upvotes: 1

Views: 1134

Answers (2)

Daniel Roseman
Daniel Roseman

Reputation: 599630

You should not really be defining the __init__ method at all. falsetru shows that you need to call the super class method, but all the functionality you've put in your own version is already provided by that.

Upvotes: 3

falsetru
falsetru

Reputation: 369134

The code is missing call to super class' __init__:

def __init__(self, user_id, user_name, user_age):
    super(User, self).__init__() # <----
    self.user_id = user_id
    self.user_name = user_name
    self.user_age = user_age

Upvotes: 5

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