我需要一种在基于django函数的列表视图中传递唯一对象id的方法。

from django.urls import path
from . import views

urlpatterns = [
    path('items/<int:item_id>/', views.item_detail, name='item_detail'),
]

from django.shortcuts import render, get_object_or_404
from .models import Item

def item_detail(request, item_id):
    item = get_object_or_404(Item, id=item_id)
    return render(request, 'item_detail.html', {'item': item})

<!-- item_detail.html -->
<h1>{{ item.name }}</h1>
<p>ID: {{ item.id }}</p>

from django.shortcuts import render, get_object_or_404, redirect
from .models import Item
from .forms import ItemForm

def item_update(request, item_id):
    item = get_object_or_404(Item, id=item_id)
    if request.method == 'POST':
        form = ItemForm(request.POST, instance=item)
        if form.is_valid():
            form.save()
            return redirect('item_detail', item_id=item.id)
    else:
        form = ItemForm(instance=item)
    return render(request, 'item_update.html', {'form': form})

<!-- item_update.html -->
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Update</button>
</form>