How to pass initial parameter to django's ModelForm instance?

Question

The particular case I have is like this:

I have a Transaction model, with fields: from, to (both are ForeignKeys to auth.Use

Answer 1

I ran into this problem as well, and this was my solution:

class ChangeEmailForm(forms.ModelForm):
    def __init__(self, user, *args, **kwargs):
        self.user = user
        super(ChangeEmailForm, self).__init__(*args, **kwargs)
        self.fields['email'].initial = user.email

    class Meta:
        model = User
        fields = ('email',)

    def save(self, commit=True):
        self.user.email = self.cleaned_data['email']
        if commit:
            self.user.save()
        return self.user