Gasanov

它不起作用,因为原子事务只有在引发异常时才会回滚。在您的情况下,您只需返回普通响应对象,它不会触发回滚,从而提交到数据库。

有关中的原子事务的详细信息 django docs .

将您的代码更改为类似这样的代码(未确认它是否正常工作,但链接文档中有此类示例):

from django.core.exceptions import ValidationError

def form_valid(self, form):
        context = self.get_context_data()
        phone_formset = context['phone_formset']
        email_formset = context['email_formset']
        try:
            with transaction.atomic():
                o = form.save() # <--- this object is saved even when formsets below are not valid
                condition = phone_formset.is_valid() and email_formset.is_valid()
                if not condition:
                    raise ValidationError
                phone_formset.instance = o
                phone_formset.save()
                email_formset.instance = o
                email_formset.save()
        except ValidationError:
            return render(self.request, self.template_name, self.get_context_data())
        return super(PersonCreateView, self).form_valid(form)

在路径周围加引号,如下所示:

{% extends "registration/password_reset_form.html" %}

{% block content %}
<h1> hello </h1>
{% endblock %}

另外,如果你自己的模板文件根本没有被读取,请确保你的应用程序在 INSTALLED_APPS 在里面 settings.py 和 TEMPLATES 有 'APP_DIRS': True 或 DIRS 正确设置。

您没有在提取的对象中引用M2M字段。你需要解决 sample 字段如下:

型号.py:

@classmethod
def add_to_container(cls, current_container, new_sample):
    containerContents, created = cls.objects.get_or_create(
        current_container=current_container
    )
    containerContents.sample.add(new_sample)

@classmethod
def remove_from_container(cls, current_container, new_sample):
    containerContents, created = cls.objects.get_or_create(
        current_container=current_container
    )
    containerContents.sample.remove(new_sample)

并为模型方法设置适当的变量:

视图.py

def change_container(request, operation, pk, fk='', sample_id=''):
    container = Container.objects.get(pk=pk)
    sample = Sample.objects.get(pk=fk)
    # sample = Container.objects.get(container.sample_id=sample_id)
    if operation == 'add':
        ContainerContents.add_to_container(container, sample)
    elif operation == 'remove':
        ContainerContents.remove_from_container(container, sample)

    return redirect('depot:allcontainer')