Django 在通用更新视图中使用内联表单集通过外键编辑相关对象

从django文档中可以清楚地看到

但是，如果按照文档中的一个示例，您希望通过Authors通用更新视图编辑与作者相关的书籍，该怎么办

以下方面是否有更好的或替代方法：

创建其他表单集，并将其添加到通用更新视图的get_context_data（）方法中的上下文中

在通用更新视图的form_valid（）方法中处理这个额外的表单集-检查它是否有效，并保存或更新上下文，如果无效则返回

models.py

from django.db import models

class Author(models.Model):
    name = models.CharField(max_length=100)

class Book(models.Model):
    author = models.ForeignKey(Author, on_delete=models.CASCADE)
    title = models.CharField(max_length=100)

views.py

class AuthorUpdate(UpdateView):
    model = Author
    fields = '__all__'

    def get_context_data(self, **kwargs):
        data = super(AuthorUpdate, self).get_context_data(**kwargs)
        BooksFormSet = inlineformset_factory(Author, Book, fields='__all__', extra=1)

        if self.request.POST:
            # Create a formset instance to edit an existing model object,
            # but use POST data to populate the formset.
            data['books'] = BooksFormSet(self.request.POST, instance=self.get_object())
        else:
            # Create a formset with the data from model object and add it to context
            data['books'] = BooksFormSet(instance=self.get_object())
        return data

    def form_valid(self, form):
        context = self.get_context_data()
        books = context['books']
        with transaction.atomic():
            self.object = form.save()

            if books.is_valid():
                books.instance = self.object
                books.save()
            else:
                context.update({'books': books})
                return self.render_to_response(context)

        return super(AuthorUpdate, self).form_valid(form)