python-tdd/src/apps/dashboard/views.py

from django.core.exceptions import ValidationError
from django.shortcuts import redirect, render
from .forms import ItemForm
from .models import Item, List

def home_page(request):
    return render(request, 'apps/dashboard/home.html', {"form": ItemForm()})

def new_list(request):
    form = ItemForm(data=request.POST)
    if form.is_valid():
        nulist = List.objects.create()
        Item.objects.create(text=request.POST["text"], list=nulist)
        return redirect(nulist)
    else:
        return render(request, "apps/dashboard/home.html", {"form": form})

def view_list(request, list_id):
    our_list = List.objects.get(id=list_id)
    error = None
    form = ItemForm()

    if request.method == "POST":
        form = ItemForm(data=request.POST)
        try:
            item = Item(text=request.POST['text'], list=our_list)
            item.full_clean()
            item.save()
            return redirect(our_list)
        except ValidationError:
            error = "You can't have an empty list item"

    return render(request, 'apps/dashboard/list.html', {'list': our_list, "form": form, "error": error})