将数据从管道传递到视图 Django Python Social Auth

Question

我正在阅读 Python Social Auth 的文档，并对Interrupting the Pipeline (and communication with views)部分感到好奇。

在那里，我们看到以下管道代码

In our pipeline code, we would have:

from django.shortcuts import redirect
from django.contrib.auth.models import User
from social_core.pipeline.partial import partial

# partial says "we may interrupt, but we will come back here again"
@partial
def collect_password(strategy, backend, request, details, *args, **kwargs):
    # session 'local_password' is set by the pipeline infrastructure
    # because it exists in FIELDS_STORED_IN_SESSION
    local_password = strategy.session_get('local_password', None)
    if not local_password:
        # if we return something besides a dict or None, then that is
        # returned to the user -- in this case we will redirect to a
        # view that can be used to get a password
        return redirect("myapp.views.collect_password")

    # grab the user object from the database (remember that they may
    # not be logged in yet) and set their password.  (Assumes that the
    # email address was captured in an earlier step.)
    user = User.objects.get(email=kwargs['email'])
    user.set_password(local_password)
    user.save()

    # continue the pipeline
    return

和以下视图

def get_user_password(request):
    if request.method == 'POST':
        form = PasswordForm(request.POST)
        if form.is_valid():
            # because of FIELDS_STORED_IN_SESSION, this will get copied
            # to the request dictionary when the pipeline is resumed
            request.session['local_password'] = form.cleaned_data['secret_word']

            # once we have the password stashed in the session, we can
            # tell the pipeline to resume by using the "complete" endpoint
            return redirect(reverse('social:complete', args=("backend_name,")))
    else:
        form = PasswordForm()

    return render(request, "password_form.html")

对线特别感兴趣

return redirect(reverse('social:complete', args=("backend_name,")))

它用于使用已经建立的后端将用户重定向回管道。

我们可以在该页面的前面看到一个用于检查正在使用哪个后端的条件。

def my_custom_step(strategy, backend, request, details, *args, **kwargs):
    if backend.name != 'my_custom_backend':
        return
    # otherwise, do the special steps for your custom backend

问题是，不是手动将它添加到args=("backend_name,")中，管道如何将正确的后端传递给视图？

Answer 1

可以简单地在管道中添加

request.session['backend'] = backend.name

然后视图变成

backend_name = request.session['backend']
return redirect(reverse('social:complete', args=(backend_name)))