forms.py

class ActUserForm(forms.ModelForm):
    user_status = ReadOnlyField()
    activation_date = ReadOnlyField()
    
    def __init__(self, *args, **kwargs):
        super(ActUserForm, self).__init__(*args, **kwargs)
        instance = getattr(self, 'instance', None)

        if instance and instance.id:
            self.fields['user_status'].initial = instance.get_user_status_display()

            if instance.activation_date != None:
                if instance.user_status != 'I':
                    self.fields['activation_date'].initial = instance.activation_date.strftime("%B %d %Y %I:%M %p")
                else:
                    self.fields['activation_date'].initial = None
    
    class Meta:
        model = ActUser
        fields = (
            'database_contact_name',
            'database_username',
            'database_password',
            'security_level',
            'excel_export',
            'delete_records',
            'calendar_access',
            'dual_access',
            'setup_assistance',
        )

    def save(self, commit=True):
        model = super(ActUserForm, self).save(commit=False)
        hosting = self.cleaned_data['hosting']

        if hosting.status == 'AC' or hosting.status == 'CO':
            if model.user_status == 'A' or model.user_status == 'C':
                model.user_status = 'C'
                hosting.status = 'CO'
                hosting.save()
        if commit:
            if model.user_status != 'I':
                model.save()
         
        return model