Save model forms in django

Question

This is supposed to be a trial run of a sign up form but the database is not storing the username and password. The error I'm getting is "The User could not be created because the data didn't validate".

views.py

def add_model(request):
    if request.method=="POST":
        form=UserForm(request.POST)
        if form.is_valid:
            model_instance=form.save(commit=False)
            model_instance.save()

forms.py

class UserForm(forms.ModelForm):
    class Meta:
        model=User
        fields=['username','password']

models.py

class User(models.Model):
    username=models.CharField(max_length=25, primary_key=True,default="")
    password=models.CharField(max_length=15,default="")

    def __str__(self):
        return self.username

Answer 1

It should be if form.is_valid() instead of if form.is_valid .

And "the data didn't validate" basically means you are trying to save() an invalid form.

Answer 2

forms.py

class UserForm(forms.ModelForm):
    class Meta:
        model=User
        fields=['username','password']
    def clean_username(self):
        username = self.cleaned_data.get('username')    

    def clean_password(self):
        password = self.cleaned_data.get('password') 

views.py

  def add_model(request):
            if request.method=="POST":
                form=UserForm(request.POST or None)
                if form.is_valid():
                    username = form.cleaned_data['username']
                    password = form.cleaned_data['password']
                    new_user = User()
                    new_user.username = username
                    new_user.password = password
                    new_user.save()

I think This should be working correctly for your purpose.