Question

我有一个create_user_profile信号，我想使用相同的信号向用户发送欢迎电子邮件。

这是我到目前为止在 signals.py ：

中写的内容

@receiver(post_save, sender=User)
def update_user_profile(sender, instance, created, **kwargs):
    if created:
        UserProfile.objects.create(user=instance)
    instance.profile.save()

    subject = 'Welcome to MyApp!'
    from_email = 'no-reply@myapp.com'
    to = instance.email
    plaintext = get_template('email/welcome.txt')
    html = get_template('email/welcome.html')

    d = Context({'username': instance.username})

    text_content = plaintext.render(d)
    html_content = html.render(d)

    try:
        msg = EmailMultiAlternatives(subject, text_content, from_email, [to])
        msg.attach_alternative(html_content, "text/html")
        msg.send()
    except BadHeaderError:
        return HttpResponse('Invalid header found.')

此错误失败：

TypeError at /signup/
context must be a dict rather than Context.

指向views.py文件中的forms.save。你能帮我理解这里的错误吗？

Answer 1

在django 1.11上，模板上下文必须是dict： https://docs.djangoproject.com/en/1.11/topics/templates/#django.template.backends.base.Template.render

尝试删除Context对象creationg。

d = {'username': instance.username}

Answer 2

只需将dict传递给渲染而不是Context对象

d = {'username': instance.username}
text_content = plaintext.render(d)

用户使用信号创建后，Django会发送欢迎电子邮件

2 个答案: