在呈现模板之前在UpdateView中添加工作

from django.views.generic.edit import UpdateView
from yourapp.models import YourModel
from yourapp.forms import YourForm

class YourUpdateView(UpdateView):
    model = YourModel
    form_class = YourForm
    template_name = 'your_template.html'
    success_url = '/success/'

class YourUpdateView(UpdateView):
    model = YourModel
    form_class = YourForm
    template_name = 'your_template.html'
    success_url = '/success/'

    def get_object(self, queryset=None):
        # 自定义获取要更新的对象的逻辑
        obj = super().get_object(queryset=queryset)
        # 添加额外的工作
        # ...
        return obj

    def form_valid(self, form):
        # 自定义表单验证通过后的逻辑
        # 添加额外的工作
        # ...
        return super().form_valid(form)

<form method="post" action="{% url 'your_update_view' pk=object.pk %}">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">更新</button>
</form>