views.py 文件源码

def post_edit(request, pk):
    post = Post.objects.get(pk=pk)

    if request.method == 'POST':
        form = PostModelForm(request.POST, request.FILES, instance=post)
        if form.is_valid():
            # form.cleaned_data  # dict??
            post = form.save()
            return redirect(post)  # post.get_absolute_url() ???? ??? ??
        # return redirect('blog:post_detail', post.id)
    else:
        # if request.method == 'GET':
        form = PostModelForm(instance=post)

    return render(request, 'blog/post_form.html', {
        'form': form,
    })

# from django.views.generic import UpdateView
# post_edit = UpdateView.as_view(model=Post, form_class=PostModelForm)