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()})
    return render(request, "apps/dashboard/home.html")

def new_list(request):
    nulist = List.objects.create()
    item = Item(text=request.POST['item_text'], list=nulist)
    try:
        item.full_clean()
        item.save()
    except ValidationError:
        nulist.delete()
        error = "You can't have an empty list item"
        return render(request, "apps/dashboard/home.html", {"error": error})
    return redirect(nulist)

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

    if request.method == "POST":
        try:
            item = Item(text=request.POST['item_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, "error": error})