Django UpdateView: Object To Update Has No Values

I'd like to update an object with generic view updateview. The problem arises when I edit an object. Instead of reaching a prefilled form, I reach a blank form. My template for thi

Solution 1:

I think your UpdateView is not returning the right object for your template. Have you tried this:

class HabitUpdate(UpdateView):
    model = Habit
    form_class = HabitForm
    template_name = 'habits/update_habit.html'
    success_url = reverse_lazy('display_habits')

    def get_initial(self):
        initial = super(HabitUpdate, self).get_initial()
        print('initial data', initial)

        # retrieve current object
        habit_object = self.get_object()

        initial['field1'] = habit_object.field1
        initial['field2'] = habit_object.field2
        ....
        ....
        return initial


    def get_object(self, *args, **kwargs):
        habit = get_object_or_404(Habit, pk=self.kwargs['pk'])

        return habit

And you only need this in your forms.py file:

class HabitForm(forms.ModelForm):
    class Meta:
        model = Habit
        fields = ( 'title', 'trigger', 'existingroutine', 'targetbehavior', 'image')