[Django]CRUDのUpdate

/hello/urls.py

urlpatterns = [ 
	path('', views.index, name='index'),
	path('create', views.create, name='create'),
	path('edit/<int:num>', views.edit, name='edit'),
]

/hello/templates/hello/create.html

<body class="container">
	<h1 class="display-4 text-primary">{{title}}</h1>
	<table class="table">
		<tr>
			<th>data</th>
		</tr>
	{% for item in data %}
		<tr>
			<td>{{item}}</td>
			<td><a href="{% url 'edit' item.id %}">Edit</a></td>
		</tr>
	{% endfor %}
	</table>
</body>

– url ‘edit’ item.idで/edit/1というようにアクセスできるようになる

edit.htmlを作る
/hello/templates/hello/edit.html

<body class="container">
	<h1 class="display-4 text-primary">{{title}}</h1>
	<form action="{% url 'edit' id %}" method="post">
		{% csrf_token %}
		<table class="table">
		{{ form.as_table }}
		<tr>
			<td></td>
			<td><input type="submit" value="click" class="btn btn-primary mt-2"></td>
		</tr>
	</table>
	</form>
</body>

edit関数を作る
/hello/views.py

# edit
def edit(request, num):
	obj = Friend.objects.get(id=num)
	if(request.method == 'POST'):
		friend = FriendForm(request.POST, instance=obj)
		friend.save()
		return redirect(to='/hello')
	params = {
		'title': 'Hello',
		'id': num,
		'form': FriendForm(instance=obj),
	}
	return render(request, 'hello/edit.html', params)

引っ張る時は、’form’: FriendForm(instance=obj),として、updateの時はFriendForm(request.POST, instance=obj)とするのか。なお、createの時はobj = Friend()