todo add/create

:
    def get(self, request):
        return render(request, "todo/todoitem_form.html", {
            'form': TodoItemForm()
        })

    def post(self, request):
        form = TodoItemForm(request.POST)
        if form.is_valid():
            description = request.POST['description']
            completed = 'completed' in request.POST and request.POST['completed'] == 'on'
            TodoItem.objects.create(description=description, completed=completed)
            # Another way: TodoItem.objects.create(description=form.cleaned_data['description'],
            # completed=form.cleaned_data['completed'])
            return redirect('todo-list')
        return render(request, "todo/todoitem_form.html", {
            'form': form
        })


def create_edit(request, pk=None):
    if request.method == 'GET':
        item = TodoItem() if pk is None else TodoItem.objects.get(pk=pk)
        return render(request, "todo/todoitem_form.html", {
            'form': TodoItemForm(instance=item)
        })
    if request.method == 'POST':
        form = TodoItemForm(request.POST)
        if form.is_valid():
            return redirect('todo-list')
        return render(request, "todo/todoitem_form.html", {
            'form': form
        })